SSM-Spring教程（一）-IoC 控制翻转、SpringIoC技术、Bean之间的关系、作用域、生命周期、SpEL、各种属性的注入（基本类型、引用类型、集合类型）、Spring注解（详细）
SSM-Spring
什么是Spring：Spring提供了两个及其重要的技术，IoC |AOP
IoC：控制翻转 也叫DI技术（依赖注入）。之前呢，开发人员在使用某个类之前都需要先去创建对象（new），然后通过setter方法注入值，然后通过这个对象调用其中的方法。。。而现在通过Spring 的 IoC技术可以将对象的创建以及属性的赋值承包起来，这样的话，开发人员无需去创建对象，为属性赋值等。
AOP:面向方面编程（OOP）
1、开发步骤
①、导入jar包
commons-logging-1.1.1.jar
junit4.4.jar
spring-beans-4.0.2.RELEASE.jar
spring-context-4.0.2.RELEASE.jar
spring-core-4.0.2.RELEASE.jar
spring-expression-4.0.2.RELEASE.jar②、创建spring的配置文件
③、配置相关对象
spring-01applicationContext.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="helloWorld" class="com.rock.spring.hello.HelloWorld"> <property name="name" value="老张">property> bean> beans>④、去IoC容器中获取这些对象
package com.rock.spring.hello; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class HelloWorldTest { @Test public void test1(){ HelloWorld helloWorld =new HelloWorld(); helloWorld.setName1("老张"); helloWorld.hello(); } public static void main(String[] args) { // HelloWorld helloWorld =new HelloWorld(); // helloWorld.setName("老张"); // ①、创建Spring的IoC容器对象 // ApplicationContext :是IoC容器对象 // ClassPathXmlApplicationContext是ApplicationContext容器对象的一个具体实现，参数指定了spring的配置文件 ApplicationContext ctx=new ClassPathXmlApplicationContext("spring-01applicationContext.xml"); // ②、去IoC容器中获取对象（根据IoC容器中的对象名获取对应的对象） HelloWorld helloWorld=(HelloWorld) ctx.getBean("helloWorld"); // ③、调用对象中的相关方法 helloWorld.hello(); } @Test public void testFirst(){ } }
2、Spring中bean的配置以及属性注入的细节
①、两种属性值注入方式
①、setter方法注入
②、构造器注入，通过bean的构造器先后顺序注入
spring-02beans.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="c1" class="com.rock.spring.beans.Car">
<property name="brand">
<value>>]]>value>
property>
<property name="price" value="1000000">property>
<property name="maxspeed">
<value>240value>
property>
bean>
<bean id="car1" class="com.rock.spring.beans.Car">
<property name="brand" value="Audi">property>
<property name="price" value="3333333.5">property>
<property name="maxspeed" value="240">property>
bean>
<bean id="car" class="com.rock.spring.beans.Car">
<property name="brand">
<value>>i]]>value>
property>
<property name="price" value="3333333.5">property>
<property name="maxspeed" value="240">property>
bean>
<bean id="car2" class="com.rock.spring.beans.Car">
<constructor-arg value="BMW" index="0">constructor-arg>
<constructor-arg value="99999.9">constructor-arg>
<constructor-arg value="240">constructor-arg>
bean>
<bean id="car3" class="com.rock.spring.beans.Car">
<constructor-arg value="Audi">constructor-arg>
<constructor-arg value="5555555.5">constructor-arg>
bean>
<bean id="car4" class="com.rock.spring.beans.Car">
<constructor-arg value="Audi" type="java.lang.String">constructor-arg>
<constructor-arg value="240" type="double">constructor-arg>
bean>
beans>
②、应用类型属性的注入
spring-03ObjectIn.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="car" class="com.rock.spring.objectin.Car">
<constructor-arg value="Audi">constructor-arg>
<constructor-arg value="5555555.5">constructor-arg>
<constructor-arg value="240">constructor-arg>
bean>
<bean id="car1" class="com.rock.spring.objectin.Car">
<constructor-arg value="BMW">constructor-arg>
<constructor-arg value="6555555.5">constructor-arg>
<constructor-arg value="280">constructor-arg>
bean>
<bean id="person" class="com.rock.spring.objectin.Person">
<property name="name" value="刘备">property>
<property name="car" ref="car">property>
bean>
<bean id="address" class="com.rock.spring.objectin.Address">
<constructor-arg value="大连">constructor-arg>
<constructor-arg value="高新区光贤路">constructor-arg>
bean>
<bean id="person1" class="com.rock.spring.objectin.Person">
<property name="name">
<value>关羽value>
property>
<property name="car" ref="car1">property>
<property name="address" ref="address">property>
bean>
<bean id="person2" class="com.rock.spring.objectin.Person">
<property name="name">
<value>张飞value>
property>
<property name="car" ref="car1">property>
<property name="address">
<bean class="com.rock.spring.objectin.Address">
<constructor-arg value="北京市">constructor-arg>
<constructor-arg value="海淀区中软村">constructor-arg>
bean>
property>
bean>
beans>
Person.java
package com.rock.spring.objectin;
import java.util.List;
public class Person {
private String name;
private Car car;
private Address address;
private List<Car> cars;
public List<Car> getCars() {
return cars;
}
public void setCars(List<Car> cars) {
this.cars = cars;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Car getCar() {
return car;
}
public void setCar(Car car) {
this.car = car;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
@Override
public String toString() {
return "Person [name=" + name + ", car=" + car + ", address=" + address + ", cars=" + cars + "]";
}
}
ObjectInTest.java
package com.rock.spring.objectin;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class ObjectInTest {
ApplicationContext ctx;
@Before
public void init(){
// ①、创建IoC容器对象
ctx=new ClassPathXmlApplicationContext("spring-03ObjectIn.xml");
}
@Test
public void testRef(){
Person person=(Person) ctx.getBean("person");
System.out.println(person);
Person person1=(Person) ctx.getBean("person1");
System.out.println(person1);
Person person2=(Person) ctx.getBean("person2");
System.out.println(person2);
}
}
Car.java
package com.rock.spring.objectin;
public class Car {
private String brand;
private double price;
private int maxspeed;
public Car() {
super();
}
public Car(String brand, double price, int maxspeed) {
super();
this.brand = brand;
this.price = price;
this.maxspeed = maxspeed;
}
public Car(String brand, double price) {
this.brand = brand;
this.price = price;
}
public Car(String brand, int maxspeed) {
this.brand = brand;
this.maxspeed = maxspeed;
}
@Override
public String toString() {
return "Car [brand=" + brand + ", price=" + price + ", maxspeed=" + maxspeed + "]";
}
public String getBrand() {
return brand;
}
public void setBrand(String brand) {
this.brand = brand;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public int getMaxspeed() {
return maxspeed;
}
public void setMaxspeed(int maxspeed) {
this.maxspeed = maxspeed;
}
}
Address.java
package com.rock.spring.objectin;
public class Address {
private String city;
private String street;
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
@Override
public String toString() {
return "Address [city=" + city + ", street=" + street + "]";
}
public Address(String city, String street) {
super();
this.city = city;
this.street = street;
}
public Address() {
super();
}
}
③、集合属性的注入
spring-04collection.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<bean id="address" class="com.rock.spring.collection.Address">
<constructor-arg value="大连市">constructor-arg>
<constructor-arg value="沙河口区">constructor-arg>
bean>
<bean id="address1" class="com.rock.spring.collection.Address">
<property name="city" value="辽宁省大连市">property>
<property name="street" value="沙河口区">property>
bean>
<bean id="address2" class="com.rock.spring.collection.Address" p:city="辽宁省大连市" p:street="沙河口区">bean>
<bean id="car" class="com.rock.spring.collection.Car">
<constructor-arg value="BYD">constructor-arg>
<constructor-arg value="33333.333" type="double">constructor-arg>
<property name="maxspeed" value="180">property>
bean>
<bean id="car1" class="com.rock.spring.collection.Car">
<constructor-arg value="BMW">constructor-arg>
<constructor-arg value="333333.333" type="double">constructor-arg>
<property name="maxspeed" value="280">property>
bean>
<bean id="car2" class="com.rock.spring.collection.Car">
<constructor-arg value="Audi">constructor-arg>
<constructor-arg value="433333.333" type="double">constructor-arg>
<property name="maxspeed" value="300">property>
bean>
<bean id="person" class="com.rock.spring.collection.Person">
<property name="name" value="曹操">property>
<property name="address" ref="address">property>
<property name="car" ref="car">property>
<property name="cars">
<list>
<ref bean="car"/>
<ref bean="car1"/>
<ref bean="car2"/>
<bean class="com.rock.spring.collection.Car">
<property name="brand" value="Benz">property>
bean>
list>
property>
bean>
<bean id="person1" class="com.rock.spring.collection.Person">
<property name="name" value="曹丕">property>
<property name="address" ref="address">property>
<property name="car" ref="car">property>
<property name="cars1">
<list>
<ref bean="car"/>
<ref bean="car1"/>
<ref bean="car2"/>
<bean class="com.rock.spring.collection.Car">
<property name="brand" value="Benz">property>
bean>
list>
property>
bean>
<bean id="person2" class="com.rock.spring.collection.Person">
<property name="name" value="曹缨">property>
<property name="address" ref="address2">property>
<property name="cars2">
<map>
<entry key="C1" value-ref="car">entry>
<entry key="C2" value-ref="car1">entry>
<entry key="C3" value-ref="car2">entry>
map>
property>
bean>
<util:list id="midCarList">
<ref bean="car"/>
<ref bean="car1"/>
<ref bean="car2"/>
util:list>
<bean id="person3" class="com.rock.spring.collection.Person">
<property name="name" value="诸葛亮">property>
<property name="cars" ref="midCarList">property>
bean>
<bean id="person4" class="com.rock.spring.collection.Person">
<property name="name" value="诸葛亮">property>
<property name="cars1" ref="midCarList">property>
bean>
beans>
Address.java
package com.rock.spring.collection;
public class Address {
private String city;
private String street;
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
@Override
public String toString() {
return "Address [city=" + city + ", street=" + street + "]";
}
public Address(String city, String street) {
super();
this.city = city;
this.street = street;
}
public Address() {
super();
}
}
Car.java
package com.rock.spring.collection;
public class Car {
private String brand;
private double price;
private int maxspeed;
public Car() {
super();
}
public Car(String brand, double price, int maxspeed) {
super();
this.brand = brand;
this.price = price;
this.maxspeed = maxspeed;
}
public Car(String brand, double price) {
this.brand = brand;
this.price = price;
}
public Car(String brand, int maxspeed) {
this.brand = brand;
this.maxspeed = maxspeed;
}
@Override
public String toString() {
return "Car [brand=" + brand + ", price=" + price + ", maxspeed=" + maxspeed + "]";
}
public String getBrand() {
return brand;
}
public void setBrand(String brand) {
this.brand = brand;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public int getMaxspeed() {
return maxspeed;
}
public void setMaxspeed(int maxspeed) {
this.maxspeed = maxspeed;
}
}
Person.java
package com.rock.spring.collection;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class Person {
private String name;
private Car car;
private Address address;
private List<Car> cars;
private Set<Car> cars1;
private Map<String,Car> cars2;
public Map<String, Car> getCars2() {
return cars2;
}
public void setCars2(Map<String, Car> cars2) {
this.cars2 = cars2;
}
public Set<Car> getCars1() {
return cars1;
}
public void setCars1(Set<Car> cars1) {
this.cars1 = cars1;
}
public List<Car> getCars() {
return cars;
}
public void setCars(List<Car> cars) {
this.cars = cars;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Car getCar() {
return car;
}
public void setCar(Car car) {
this.car = car;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
@Override
public String toString() {
return "Person [name=" + name + ", car=" + car + ", address=" + address + ", cars=" + cars + ", cars1=" + cars1
+ ", cars2=" + cars2 + "]";
}
}
TestCollectionIn.java
package com.rock.spring.collection;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class TestCollectionIn {
ApplicationContext ctx;
@Before
public void init(){
// ①、创建IoC容器对象
ctx=new ClassPathXmlApplicationContext("spring-04collection.xml");
}
@Test
public void testCSFix(){
Car car =(Car) ctx.getBean("car");
System.out.println(car);
}
@Test
public void testPerson(){
Person person =(Person) ctx.getBean("person");
System.out.println(person);
Person person1 =(Person) ctx.getBean("person1");
System.out.println(person1);
Person person2 =(Person) ctx.getBean("person2");
System.out.println(person2);
Person person3 =(Person) ctx.getBean("person3");
System.out.println(person3);
}
}
④、properties注入
DataSrouce.java
package com.rock.spring.properties;
import java.util.Properties;
public class DataSource {
private Properties properties;
public DataSource() {
super();
}
public DataSource(Properties properties) {
super();
this.properties = properties;
}
public Properties getProperties() {
return properties;
}
public void setProperties(Properties properties) {
this.properties = properties;
}
@Override
public String toString() {
return "DataSource [properties=" + properties + "]";
}
}
spring-05properties.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<bean id="dataSource" class="com.rock.spring.properties.DataSource">
<property name="properties">
<props>
<prop key="aa">AAAAprop>
<prop key="bb">BBBBprop>
<prop key="cc">CCCCprop>
props>
property>
bean>
<bean id="dataSource1" class="com.rock.spring.properties.DataSource">
<constructor-arg>
<props>
<prop key="driver">oracle.jdbc.OracleDriverprop>
<prop key="url">jdbc:oracle:thin:@127.0.0.1:1521:orclprop>
<prop key="username">scottprop>
<prop key="password">tigerprop>
props>
constructor-arg>
bean>
<context:property-placeholder location="classpath:db.properties"/>
<bean id="dataSource2" class="com.rock.spring.properties.DataSource">
<constructor-arg>
<props>
<prop key="driver">${oracle-driver}prop>
<prop key="url">${oracle-url}prop>
<prop key="username">${oracle-username}prop>
<prop key="password">${oracle-password}prop>
props>
constructor-arg>
bean>
beans>
PropertiesTest.java
package com.rock.spring.properties;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class PropertiesTest {
ApplicationContext ctx;
@Before
public void init(){
// ①、创建IoC容器对象
ctx=new ClassPathXmlApplicationContext("spring-05properties.xml");
}
@Test
public void testProperties(){
DataSource ds=(DataSource) ctx.getBean("dataSource");
System.out.println(ds);
DataSource ds1=(DataSource) ctx.getBean("dataSource1");
System.out.println(ds1);
DataSource ds2=(DataSource) ctx.getBean("dataSource2");
System.out.println(ds2);
}
}
⑤、part1总结
Spring框架
1、IoC技术（控制翻转）：也叫DI（依赖注入）
IoC容器：ApplicationContext ctx：就是IoC容器对象
ctx.getBean(“对象名”);
2、Aop技术：面向方面（切面）编程
3、关于bean属性值得注入
①、基本类型的注入
②、String类型的注入<bean id="" class=""> <property name="" value=""> bean>③、对象属性的注入
<bean id="" class=""> <property name="" ref=""> bean>④、集合属性的注入List,Set,Map
<bean id="" class=""> <property name=""> <list> Set&List <ref bean="beanid1"> <ref bean="beanid2"> <list> property> bean> <bean id="" class=""> <property name=""> <map> Map <entry key|key-ref|value|value-ref=""> <entry key="A0001" value-ref="person"> <map> property> bean>⑤、Properties属性的注入
<bean id="" class=""> <property name=""> <props> Properties <prop key="K1">KValue1prop> <prop key="K2">KValue2prop> <props> property> bean>4、Spring命名空间 context|p|util
context：引用外部的属性文件<context:property-placeholder lication=""> <context:property-placeholder location="classpath:db.properties"/> 在当前的配置文件中通过${key}
<property name="driver" value="${oracle.driver}">oracle.url=jdbc:oracle:thin:@127.0.0.1:1521:orcl oracle.username=scott oracle.password=tiger oracle.driver=oracle.jdbc.OracleDriver
p:对bean属性的值的注入，即简化了配置
util:使用util中的list元素创建共享的集合
5、其他
①、内部bean
②、setter风格属性|构造注入
③、setter注入和构造器注入可以混合使用
⑥、SpringBean之间的关系
1、依赖关系：表现的是IoC容器在创建对象的先后顺序
2、继承关系：表现在配置上的继承，而非java中的继承
Address.java
package com.rock.spring.relation;
/**FileName: com.rock.spring.relation Address.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:上午9:28:57
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*
*/
public class Address {
private String city;
private String street;
@Override
public String toString() {
return "Address [city=" + city + ", street=" + street + "]";
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
}
Car.java
package com.rock.spring.relation;
/**FileName: com.rock.spring.relation Car.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:上午9:13:50
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*
*/
public class Car {
private String brand;
private int maxspeed;
private double price;
@Override
public String toString() {
return "Car [brand=" + brand + ", maxspeed=" + maxspeed + ", price=" + price + "]";
}
public String getBrand() {
return brand;
}
public void setBrand(String brand) {
this.brand = brand;
}
public int getMaxspeed() {
return maxspeed;
}
public void setMaxspeed(int maxspeed) {
this.maxspeed = maxspeed;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public Car(String brand, int maxspeed) {
super();
this.brand = brand;
this.maxspeed = maxspeed;
}
public Car(String brand, int maxspeed, double price) {
super();
this.brand = brand;
this.maxspeed = maxspeed;
this.price = price;
}
public Car() {
super();
}
}
Person.java
package com.rock.spring.relation;
import java.util.Set;
/**FileName: com.rock.spring.relation Person.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:上午9:13:57
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*
*/
public class Person {
private Car car;
private Address address;
private Set<Car> cars;
public Person(Car car, Address address, Set<Car> cars) {
super();
this.car = car;
this.address = address;
this.cars = cars;
}
public Set<Car> getCars() {
return cars;
}
public void setCars(Set<Car> cars) {
this.cars = cars;
}
public Person(Car car, Address address) {
super();
this.car = car;
this.address = address;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
public Person(Car car) {
super();
this.car = car;
}
public Person() {
super();
}
public Car getCar() {
return car;
}
public void setCar(Car car) {
this.car = car;
}
@Override
public String toString() {
return "Person [car=" + car + ", address=" + address + ", cars=" + cars + "]";
}
}
DepentTest.java
package com.rock.spring.relation;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**FileName: com.rock.spring.relation DependTest.java
* TODO: Bean之间的关系单元测试
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:上午9:20:58
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*
*/
public class DependTest {
private ApplicationContext ctx;
@Before
public void init(){
ctx=new ClassPathXmlApplicationContext("spring-06relation.xml");
}
@Test
public void testDep(){
Person person=(Person) ctx.getBean("person");
System.out.println(person);
Person person1=(Person) ctx.getBean("person1");
System.out.println(person1);
}
}
spring-06relation.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<bean id="person" class="com.rock.spring.relation.Person" p:address-ref="address" depends-on="car,address">
<property name="car" ref="car">property>
bean>
<bean id="car" class="com.rock.spring.relation.Car">
<constructor-arg value="Audi">constructor-arg>
<constructor-arg value="260">constructor-arg>
bean>
<bean id="address" class="com.rock.spring.relation.Address" p:city="辽宁大连" p:street="高新园区">bean>
<bean id="fatherCar" abstract="true" p:brand="Audi" p:maxspeed="260" p:price="300000">bean>
<bean id="car1" class="com.rock.spring.relation.Car" p:price="200000" parent="fatherCar" p:brand="Foud">bean>
<bean id="car2" class="com.rock.spring.relation.Car" parent="fatherCar" p:price="400000">bean>
<util:set id="utilCars">
<ref bean="car1"/>
<ref bean="car2"/>
util:set>
<bean id="person1" class="com.rock.spring.relation.Person">
<property name="address" ref="address">property>
<property name="cars" ref="utilCars">property>
bean>
beans>
⑦、Bean的作用域,IoCbean的作用域共有5个
Spring中bean的作用域
①、singleton ：单例作用域，，，
sigleton在项目 启动时，IoC容器就会根据配置创建这个bean对象。是bean的默认作用域
②、prototype ：原生作用域，，， prototpye是在获取这个对象时，IoC容器才去创建这个bean对象
③、request
④、session
④、global
Car.java
package com.rock.spring.scope;
/**FileName: com.rock.spring.relation Car.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:上午9:13:50
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*
*/
public class Car {
private String brand;
private int maxspeed;
private double price;
@Override
public String toString() {
return "Car [brand=" + brand + ", maxspeed=" + maxspeed + ", price=" + price + "]";
}
public String getBrand() {
return brand;
}
public void setBrand(String brand) {
this.brand = brand;
}
public int getMaxspeed() {
return maxspeed;
}
public void setMaxspeed(int maxspeed) {
this.maxspeed = maxspeed;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public Car(String brand, int maxspeed) {
super();
this.brand = brand;
this.maxspeed = maxspeed;
}
public Car(String brand, int maxspeed, double price) {
super();
this.brand = brand;
this.maxspeed = maxspeed;
this.price = price;
}
public Car() {
super();
System.out.println("Car.Car() is running.........");
}
}
Person.java
package com.rock.spring.scope;
import java.util.Set;
/**FileName: com.rock.spring.relation Person.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:上午9:13:57
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*
*/
public class Person {
private String name;
private int age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
ScopeTest.java
package com.rock.spring.scope;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**FileName: com.rock.spring.relation DependTest.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:上午9:20:58
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*
*/
public class ScopeTest {
private ApplicationContext ctx;
@Before
public void init(){
ctx=new ClassPathXmlApplicationContext("spring-07beanscope.xml");
}
@Test
public void testScope(){
Car car1=(Car) ctx.getBean("car");
Car car2=(Car) ctx.getBean("car");
System.out.println(car1==car2);
// System.out.println(car);
Person p1=(Person) ctx.getBean("person");
Person p2=(Person) ctx.getBean("person");
System.out.println(p1==p2);
}
}
spring-07beanscope.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="car" class="com.rock.spring.scope.Car" p:brand="Audi" p:maxspeed="240" p:price="300000" scope="singleton">bean>
<bean id="person" class="com.rock.spring.scope.Person" p:name="刘备" p:age="20" scope="prototype">bean>
beans>
⑧、Bean的声明周期
Spring中bean的生命周期：
①、在bean的配置中可以通过init-method 和 destroy -method 来指定bean初始化方法和消亡方法
<bean id="car1" class="com.rock.spring.cycle.Car" p:brand="Audi" p:price="300000" p:maxspeed="240" init-method="init1" destroy-method="destroy1" > bean>②、开发人员可以通过创建BeanPostProcessor来设置bean的前置和后置处理器，来进一步干预bean的生命周期
注意：Bean的处理器不是针对某一个bean而是对IoC容器中的所有bean都起作用
Car.java
package com.rock.spring.cycle;
/**FileName: com.rock.spring.relation Car.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:上午9:13:50
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*
*/
public class Car {
private String brand;
private int maxspeed;
private double price;
/**
* @TODO :在这个类被IoC容器创建时 自动调用init方法，完成一些初始化工作
* @Date :2018年11月7日 下午1:20:33
* @Author :老张 :
*/
public void init1(){
System.out.println("Car.init() is running..........");
}
/**
* @TODO :在这个类对象被IoC容器消亡时，会自动调用的方法
* @Date :2018年11月7日 下午1:21:05
* @Author :老张 :
*/
public void destroy1(){
System.out.println("Car.destroy() is running.......");
}
public String getBrand() {
return brand;
}
public void setBrand(String brand) {
this.brand = brand;
}
public int getMaxspeed() {
return maxspeed;
}
public void setMaxspeed(int maxspeed) {
this.maxspeed = maxspeed;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public Car(String brand, int maxspeed) {
super();
this.brand = brand;
this.maxspeed = maxspeed;
}
public Car(String brand, int maxspeed, double price) {
super();
this.brand = brand;
this.maxspeed = maxspeed;
this.price = price;
}
public Car() {
super();
System.out.println("Car.Car() is running.........");
}
@Override
public String toString() {
return "Car [brand=" + brand + ", maxspeed=" + maxspeed + ", price=" + price + "]";
}
}
Person.java
package com.rock.spring.cycle;
public class Person {
private String name;
private Car car;
public Car getCar() {
return car;
}
public void setCar(Car car) {
this.car = car;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String toString() {
return "Person [name=" + name + ", car=" + car + "]";
}
}
CycleTest.java
package com.rock.spring.cycle;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
/**FileName: com.rock.spring.cycle RockProcessor.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:下午1:35:17
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*/
public class RockProcessor implements BeanPostProcessor{
/**
* 配置bean的后置处理器，
* arg0是IoC容器创建的对象，而返回值IoC容器得到的对象
*/
public Object postProcessAfterInitialization(Object arg0, String arg1) throws BeansException {
// System.out.println("RockProcessor.postProcessAfterInitialization() is running.......");
System.out.println(arg0);
System.out.println(arg1);
Car car=(Car)arg0;
if(car.getBrand().equals("BYD")){
car.setBrand("Audi");
return car;
}
return null;
}
@Override
public Object postProcessBeforeInitialization(Object arg0, String arg1) throws BeansException {
// System.out.println("RockProcessor.postProcessBeforeInitialization() is running.........");
return arg0;
}
}
spring-08beancycle.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="car1" class="com.rock.spring.cycle.Car"
p:brand="BYD"
p:price="30000"
p:maxspeed="240"
>bean>
<bean class="com.rock.spring.cycle.RockProcessor">bean>
beans>
⑨、自动注入，autowire
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="car11111111" class="com.rock.spring.autowired.Car" p:brand="Audi" p:maxspeed="240" p:price="300000">bean>
<bean id="address" class="com.rock.spring.autowired.Address" p:city="大连市" p:street="高新园区">bean>
<bean id="person" class="com.rock.spring.autowired.Person">
<property name="name" value="刘备">property>
<property name="address" ref="address">property>
bean>
<bean id="person2" class="com.rock.spring.autowired.Person" autowire="byType">
<property name="name" value="张飞">property>
bean>
beans>
package com.rock.spring.autowired;
public class Person {
private String name;
private Car car;
private Address address;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Car getCar() {
return car;
}
public void setCar(Car car) {
this.car = car;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
@Override
public String toString() {
return "Person [name=" + name + ", car=" + car + ", address=" + address + "]";
}
}
|Spring中属性的注入？
①、setter注入
②、构造器注入
③、自动注入 autowire=“byName|byType” byType：若IoC容器中存在多个相同类型的对象，将不能注入成功
Spring IoC容器管理bean的生命周期
①、通过指定init-method destroy-method 执行初始化和消亡方法
②、bean的后置处理BeanProcessor（接口—>before|after）在bean初始化方法执行之前和执行之后调用before和after方法
注意：两个方法参数以及返回值的性质
参数1：bean对象（Object）
参数2：bean名称（String）
返回值：Object 返回给IoC的对象
③、Bean的创建
Ⅰ、通过静态（工厂）方法创建bean
Ⅱ、通过实例工厂方法创建bean
Ⅲ、通过FactoryBean创建bean
Spring中的表达式语言：SpEL
语法：#{}
⑩、Bean的创建方式
①、通过反射创建bean
②、通过工厂方法创建bean
1）、静态工方法创建bean
第一：工厂中的方法必须是static修饰，返回值是要创建的bean对象类型
第二：这个静态工厂方法可以有参数，若有参数在配置文件中通过向这个参数注入相关的值
第三：在配置文件中配置的Bean类型，但是class要指向工厂类 2）、实例工厂方法创建
③、通过FactoryBean创建
1、工厂方法创建bean
①、静态工厂方法创建bean
PersonFactory.java
package com.rock.spring.beancreate;
import java.util.HashMap;
import java.util.Map;
/**FileName: com.rock.spring.beancreate PersonFactory.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:下午5:05:06
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*
*/
public class PersonFactory {
private static Map<String,Person> ps=new HashMap<String,Person>();
static{
ps.put("zhangfei", new Person("张飞",20));
ps.put("guanyu", new Person("关羽",30));
ps.put("liubei", new Person("刘备",60));
ps.put("zhaoyun", new Person("赵云",10));
}
public static Person getPerson(){
Person p=new Person();
p.setAge(10);
p.setName("张飞");
return p;
}
public static Person getPersonByName(String name){
return ps.get(name);
}
}
AddressFactory
package com.rock.spring.beancreate;
import java.util.HashMap;
import java.util.Map;
/**FileName: com.rock.spring.beancreate AddressFactory.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月7日:下午5:15:28
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月7日 老张 1.0 1.0 Version
*
*/
public class AddressFactory {
private Map<String,Address> maps=new HashMap<>();
{
maps.put("rock", new Address("大连市","高新园区"));
maps.put("zhaoyun", new Address("北京市","海淀区"));
maps.put("liubei", new Address("上海市","黄埔区"));
}
public Address getAddress(String id){
return maps.get(id);
}
}
spring-10beanfactory.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="car" class="com.rock.spring.beancreate.CarFactory" factory-method="getCar">bean>
<bean id="car1" class="com.rock.spring.beancreate.CarFactory" factory-method="getCarByCid">
<constructor-arg value="c2">constructor-arg>
bean>
<bean id="person" class="com.rock.spring.beancreate.PersonFactory" factory-method="getPerson">bean>
<bean id="person1" class="com.rock.spring.beancreate.PersonFactory" factory-method="getPersonByName">
<constructor-arg value="关羽">constructor-arg>
bean>
<bean id="person2" class="com.rock.spring.beancreate.PersonFactory" factory-method="getPersonByName">
<constructor-arg value="zhaoyun">constructor-arg>
bean>
<bean id="af" class="com.rock.spring.beancreate.AddressFactory">bean>
<bean id="address1" class="com.rock.spring.beancreate.AddressFactory" factory-bean="af" factory-method="getAddress">
<constructor-arg value="liubei">constructor-arg>
bean>
beans>
FactoryTest
package com.rock.spring.beancreate;
import javax.swing.plaf.synth.SynthSliderUI;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class FactoryTest {
ApplicationContext ctx;
@Before
public void init(){
// ①、创建IoC容器对象
ctx=new ClassPathXmlApplicationContext("spring-10beanfactory.xml");
}
@Test
public void testFactory1(){
Car car=(Car) ctx.getBean("car");
System.out.println(car);
}
@Test
public void testFactory(){
Car car=(Car) ctx.getBean("car1");
System.out.println(car);
}
@Test
public void testPerson(){
Person person=(Person)ctx.getBean("person");
System.out.println(person);
Person person1=(Person)ctx.getBean("person1");
System.out.println(person1);
Person person2=(Person)ctx.getBean("person2");
System.out.println(person2);
}
@Test
public void testAddress(){
Address address1=(Address) ctx.getBean("address1");
System.out.println(address1);
}
}
②、实例工厂方法
Book.java
package com.rock.spring.beancreate;
/**FileName: com.rock.spring.beancreate Book.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月8日:上午8:57:21
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月8日 老张 1.0 1.0 Version
*
*/
public class Book {
private String bookname;
private int price;
public String getBookname() {
return bookname;
}
public void setBookname(String bookname) {
this.bookname = bookname;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
@Override
public String toString() {
return "Book [bookname=" + bookname + ", price=" + price + "]";
}
}
BookFactory
package com.rock.spring.beancreate;
/**FileName: com.rock.spring.beancreate BookFactory.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月8日:上午8:58:02
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月8日 老张 1.0 1.0 Version
*
*/
public class BookFactory {
public static Book getBook(){
Book book =new Book();
book.setBookname("老张教程");
book.setPrice(1);
return book;
}
public static Book getBook(String name){
Book book =new Book();
book.setBookname(name);
book.setPrice(1111);
return book;
}
public Book getBook1(){
Book book =new Book();
book.setBookname("老张教程111111");
book.setPrice(11111);
return book;
}
public Book getBook1(String name){
Book book =new Book();
book.setBookname(name);
book.setPrice(2222);
return book;
}
}
BookTest.java
package com.rock.spring.beancreate;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**FileName: com.rock.spring.beancreate BookTest.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月8日:上午9:02:19
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月8日 老张 1.0 1.0 Version
*
*/
public class BookTest {
ApplicationContext ctx;
@Before
public void init(){
// ①、创建IoC容器对象
ctx=new ClassPathXmlApplicationContext("spring-10beanfactory.xml");
}
@Test
public void testBook(){
System.out.println(ctx.getBean("book1"));
System.out.println(ctx.getBean("book2"));
System.out.println(ctx.getBean("book3"));
System.out.println(ctx.getBean("book4"));
}
}
spring-10beanfactory.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="car" class="com.rock.spring.beancreate.CarFactory" factory-method="getCar">bean>
<bean id="car1" class="com.rock.spring.beancreate.CarFactory" factory-method="getCarByCid">
<constructor-arg value="c2">constructor-arg>
bean>
<bean id="person" class="com.rock.spring.beancreate.PersonFactory" factory-method="getPerson">bean>
<bean id="person1" class="com.rock.spring.beancreate.PersonFactory" factory-method="getPersonByName">
<constructor-arg value="关羽">constructor-arg>
bean>
<bean id="person2" class="com.rock.spring.beancreate.PersonFactory" factory-method="getPersonByName">
<constructor-arg value="zhaoyun">constructor-arg>
bean>
<bean id="af" class="com.rock.spring.beancreate.AddressFactory">bean>
<bean id="address1" class="com.rock.spring.beancreate.AddressFactory" factory-bean="af" factory-method="getAddress">
<constructor-arg value="liubei">constructor-arg>
bean>
<bean id="book" class="com.rock.spring.beancreate.Book" p:bookname="abc" p:price="22">bean>
<bean id="book1" class="com.rock.spring.beancreate.BookFactory" factory-method="getBook">bean>
<bean id="book2" class="com.rock.spring.beancreate.BookFactory" factory-method="getBook">
<constructor-arg value="三国演义">constructor-arg>
bean>
<bean id="bookF" class="com.rock.spring.beancreate.BookFactory">bean>
<bean id="book3" factory-bean="bookF" factory-method="getBook1">bean>
<bean id="book4" factory-bean="bookF" factory-method="getBook1">
<constructor-arg value="水浒传">constructor-arg>
bean>
beans>
2、FactoryBean创建bean
Car.java
package com.rock.spring.factorybean;
/**FileName: com.rock.spring.factorybean Car.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月8日:上午9:11:27
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月8日 老张 1.0 1.0 Version
*
*/
public class Car {
private String brand;
private double price;
private int maxspeed;
public Car() {
super();
}
public Car(String brand, double price, int maxspeed) {
super();
this.brand = brand;
this.price = price;
this.maxspeed = maxspeed;
}
public Car(String brand, double price) {
this.brand = brand;
this.price = price;
}
public Car(String brand, int maxspeed) {
this.brand = brand;
this.maxspeed = maxspeed;
}
@Override
public String toString() {
return "Car [brand=" + brand + ", price=" + price + ", maxspeed=" + maxspeed + "]";
}
public String getBrand() {
return brand;
}
public void setBrand(String brand) {
this.brand = brand;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public int getMaxspeed() {
return maxspeed;
}
public void setMaxspeed(int maxspeed) {
this.maxspeed = maxspeed;
}
}
CarFactory.java
package com.rock.spring.factorybean;
import org.springframework.beans.factory.FactoryBean;
/**FileName: com.rock.spring.factorybean CarFactory.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月8日:上午9:11:57
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月8日 老张 1.0 1.0 Version
*
*/
public class CarFactory implements FactoryBean<Car> {
@Override
public Car getObject() throws Exception {
return new Car("Audi",300000);
}
@Override
public Class<?> getObjectType() {
return Car.class;
}
@Override
public boolean isSingleton() {
return true;
}
}
spring-11factorybean.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd">
<bean id="car" class="com.rock.spring.factorybean.CarFactory">bean>
<bean id="person" class="com.rock.spring.factorybean.PersonFactory">bean>
beans>
⑪、spEL表达式为属性注入动态的值
A.java
package com.rock.spring.spel;
public class A {
public static int a=10;
}
Car.java
package com.rock.spring.spel;
/**FileName: com.rock.spring.spel Car.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月8日:上午10:28:20
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月8日 老张 1.0 1.0 Version
*
*/
public class Car {
private String brand;
private double price;
private int maxspeed;
private String info;
/**
* @return the info
*/
public String getInfo() {
return info;
}
/**
* @param info the info to set
*/
public void setInfo(String info) {
this.info = info;
}
/**
* @return the brand
*/
public String getBrand() {
return brand;
}
/**
* @param brand the brand to set
*/
public void setBrand(String brand) {
this.brand = brand;
}
/**
* @return the price
*/
public double getPrice() {
return price;
}
/**
* @param price the price to set
*/
public void setPrice(double price) {
this.price = price;
}
/**
* @return the maxspeed
*/
public int getMaxspeed() {
return maxspeed;
}
/**
* @param maxspeed the maxspeed to set
*/
public void setMaxspeed(int maxspeed) {
this.maxspeed = maxspeed;
}
/**
* @Author :Rock
* @Date :2017年7月31日 下午1:10:32
* @TODO :
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "Car [brand=" + brand + ", price=" + price + ", maxspeed="
+ maxspeed + ", info=" + info + "]";
}
}
Person.java
package com.rock.spring.spel;
/**FileName: com.rock.spring.spel Person.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月8日:上午10:28:33
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月8日 老张 1.0 1.0 Version
*
*/
public class Person {
private String name;
private int age;
private Car car;
private int degree;
private boolean type;
/**
* @Author :Rock
* @Date :2017锟斤拷7锟斤拷31锟斤拷 锟斤拷锟斤拷1:29:55
* @TODO :
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "Person [name=" + name + ", age=" + age + ", car=" + car
+ ", degree=" + degree + ", type=" + type + "]";
}
/**
* @return the type
*/
public boolean getType() {
return type;
}
/**
* @param type the type to set
*/
public void setType(boolean type) {
this.type = type;
}
/**
* @return the degree
*/
public int getDegree() {
return degree;
}
/**
* @param degree the degree to set
*/
public void setDegree(int degree) {
this.degree = degree;
}
/**
*
*/
public Person() {
super();
}
/**
* @param name
* @param age
* @param car
*/
public Person(String name, int age, Car car) {
this.name = name;
this.age = age;
this.car = car;
}
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @param name the name to set
*/
public void setName(String name) {
this.name = name;
}
/**
* @return the age
*/
public int getAge() {
return age;
}
/**
* @param age the age to set
*/
public void setAge(int age) {
this.age = age;
}
/**
* @return the car
*/
public Car getCar() {
return car;
}
/**
* @param car the car to set
*/
public void setCar(Car car) {
this.car = car;
}
}
Address.java
package com.rock.spring.spel;
/**FileName: com.rock.spring.spel Address.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月8日:上午10:28:09
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月8日 老张 1.0 1.0 Version
*
*/
public class Address {
private String province;
private String city;
private String addressInfo;
/**
* @return the addressInfo
*/
public String getAddressInfo() {
return addressInfo;
}
/**
* @param addressInfo the addressInfo to set
*/
public void setAddressInfo(String addressInfo) {
this.addressInfo = addressInfo;
}
/**
* @return the province
*/
public String getProvince() {
return province;
}
/**
* @param province the province to set
*/
public void setProvince(String province) {
this.province = province;
}
/**
* @return the city
*/
public String getCity() {
return city;
}
/**
* @param city the city to set
*/
public void setCity(String city) {
this.city = city;
}
/**
* @Author :Rock
* @Date :2017年7月31日 下午1:25:36
* @TODO :
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "Address [province=" + province + ", city=" + city
+ ", addressInfo=" + addressInfo + "]";
}
}
SpELTest.java
package com.rock.spring.spel;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**FileName: com.rock.spring.spel SpelTest.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: 老张
* @Date: 2018年11月8日:上午10:28:41
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2018年11月8日 老张 1.0 1.0 Version
*
*/
public class SpelTest {
ApplicationContext ctx;
@Before
public void init(){
ctx=new ClassPathXmlApplicationContext("spring-spel.xml");
}
@Test
public void testValue() {
Car car=(Car) ctx.getBean("car");
System.out.println(car);
}
@Test
public void testObejctValue() {
Person person=(Person) ctx.getBean("person");
System.out.println(person);
}
@Test
public void testObejctPropertyValue() {
Car car=(Car) ctx.getBean("car1");
System.out.println(car);
}
@Test
public void testStringAdd() {
Address address=(Address) ctx.getBean("address1");
System.out.println(address);
}
@Test
public void testStringGe() {
Person person2=(Person) ctx.getBean("person2");
System.out.println(person2);
}
@Test
public void testRelation() {
Person person1=(Person) ctx.getBean("person1");
Person person2=(Person) ctx.getBean("person2");
Person person3=(Person) ctx.getBean("person3");
System.out.println(person1);
System.out.println(person2);
System.out.println(person3);
}
@Test
public void testStaticFinal() {
Car car=(Car) ctx.getBean("car3");
System.out.println(car);
}
@Test
public void testCondition() {
Car car=(Car) ctx.getBean("car5");
System.out.println(car);
}
@Test
public void testCondition1() {
Car car=(Car) ctx.getBean("car3");
System.out.println(car);
}
}
spring-13spel.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="car" class="com.rock.spring.beans.spel.Car">
<property name="brand" value="#{'Audi'}">property>
<property name="price" value="#{300000}">property>
<property name="maxspeed" value="240">property>
bean>
<bean id="person" class="com.rock.spring.beans.spel.Person">
<property name="name" value="刘备">property>
<property name="car" value="#{car}">property>
bean>
<bean id="car1" class="com.rock.spring.beans.spel.Car">
<property name="brand" value="#{'BYD'}">property>
<property name="price" value="#{car.price-100000}">property>
<property name="maxspeed" value="#{car.maxspeed%7}">property>
bean>
<bean id="address" class="com.rock.spring.beans.spel.Address" p:province="辽宁省" p:city="大连市">bean>
<bean id="address1" class="com.rock.spring.beans.spel.Address" p:addressInfo="#{address.province+address.city}">bean>
<bean id="person1" class="com.rock.spring.beans.spel.Person">
<property name="name" value="关羽">property>
<property name="degree" value="2">property>
bean>
<bean id="person2" class="com.rock.spring.beans.spel.Person">
<property name="name" value="关羽">property>
<property name="type" value="#{person1.degree ge 2 }">property>
bean>
<bean id="person3" class="com.rock.spring.beans.spel.Person">
<property name="name" value="关羽">property>
<property name="type" value="#{not(person1.degree ge 1) }">property>
bean>
<bean id="car2" class="com.rock.spring.beans.spel.Car">
<property name="brand" value="#{'BMW'}">property>
<property name="price" value="#{300000}">property>
<property name="maxspeed" value="240">property>
bean>
<bean id="car3" class="com.rock.spring.beans.spel.Car">
<property name="info" value="#{T(com.rock.spring.beans.spel.A).a-3}">property>
bean>
<bean id="car4" class="com.rock.spring.beans.spel.Car">
<property name="brand" value="#{'BMW'}">property>
<property name="price" value="#{300000}">property>
<property name="maxspeed" value="240">property>
bean>
<bean id="car5" class="com.rock.spring.beans.spel.Car">
<property name="info" value="#{car4.price>200000?'土豪':'正常人'}">property>
bean>
beans>
⑫、Spring注解（annotation）
spring-12annotation.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<context:component-scan base-package="com.rock.spring.beans.annotation">context:component-scan>
<context:property-placeholder location="classpath:db.properties"/>
beans>
AnnotationTest.java
package com.rock.spring.beans.annotation;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class AnnotationTest {
private ApplicationContext ctx;
@Before
public void init(){
ctx=new ClassPathXmlApplicationContext("spring-12annotation.xml");
}
@Test
public void testComponent() {
Car car=(Car) ctx.getBean("car");
System.out.println(car);
}
@Test
public void testComponentNewCar() {
NewCar car=(NewCar) ctx.getBean("okCar");
System.out.println(car);
}
@Test
public void testPropertiesOutFile() {
DataSource dataSource=(DataSource) ctx.getBean("dataSource");
System.out.println(dataSource);
}
@Test
public void testController() {
UserAction userAction=(UserAction) ctx.getBean("userAction");
System.out.println(userAction);
userAction.doGet();
}
}
Car.java
package com.rock.spring.beans.annotation;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
/**
*
* FileName: com.rock.spring.beans.annotation Car.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: Rock
* @Date: 2017年7月31日:下午4:18:36
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2017年7月31日 Rock 1.0 1.0 Version
*
*/
//@Component等价与User.java
package com.rock.spring.beans.annotation;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
/**
*
* FileName: com.rock.spring.beans.annotation User.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: Rock
* @Date: 2017年7月31日:下午4:50:53
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2017年7月31日 Rock 1.0 1.0 Version
*
*/
@Component
public class User {
@Value("Ruby")
private String userid;
@Value("刘备")
private String username;
/**
* @return the userid
*/
public String getUserid() {
return userid;
}
/**
* @param userid the userid to set
*/
public void setUserid(String userid) {
this.userid = userid;
}
/**
* @return the username
*/
public String getUsername() {
return username;
}
/**
* @param username the username to set
*/
public void setUsername(String username) {
this.username = username;
}
}
IUserDaoImpl
package com.rock.spring.beans.annotation;
import org.springframework.stereotype.Repository;
@Repository
public class IUserDaoImpl implements IUserDao{
/**
* @Author :Rock
* @Date :2017年7月31日 下午4:53:09
* @TODO :
* @see com.rock.spring.beans.annotation.IUserDao#deleteUser(java.lang.String)
*/
@Override
public int deleteUser(String userid) {
System.out.println("IUserDaoImpl.deleteUser() is runnning....."+userid);
return 0;
}
}
IUserServiceImpl
package com.rock.spring.beans.annotation;
import javax.annotation.Resource;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;
@Service
public class IUserServiceImpl implements IUserService{
@Resource
private IUserDao iUserDao;
/**
* @Author :Rock
* @Date :2017��7��31�� ����4:54:29
* @TODO :
* @see com.rock.spring.beans.annotation.IUserService#removeUser(com.rock.spring.beans.annotation.User)
*/
@Override
public int removeUser(User user) {
System.out.println("IUserServiceImpl.removeUser() is running......");
return iUserDao.deleteUser(user.getUserid());
}
}
UserAction.java
package com.rock.spring.beans.annotation;
import javax.annotation.Resource;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
/**
*
* FileName: com.rock.spring.beans.annotation UserAction.java
* TODO:
* Copyright: Copyright (c) 2015-2016 All Rights Reserved. Company: 01skill-soft.com Inc.
* @author: Rock
* @Date: 2017年7月31日:下午4:54:36
* @version: 1.0
*
* Modification History: Date Author Version Description
* ----------------------------------------------------------------------
* 2017年7月31日 Rock 1.0 1.0 Version
*
*/
@Controller
@Scope(value="singleton")
public class UserAction {
@Resource
private IUserService iUserService;
@Resource
private User user;
public void doGet(){
System.out.println("UserAction.doGet() is running.....");
iUserService.removeUser(user);
}
public String toString(){
return "UserAction is running.......";
}
}