1.构造方法注入值
2.set、get方法注入值
3.p名称空间注入
4.SpEL方法注入
5.集合类型注入
各个序号对应一个方法!!!!
这里我只是写在一起了!
package com.lzhpo.demo5;
/**
* @author lzhpo
* @version 1.0
* @since JDK 1.8.0_181
* 类说明:
**/
public class Car1 {
private String name;
private Double price;
public Car1(String name, Double price) {
this.name = name;
this.price = price;
}
@Override
public String toString() {
return "Car1{" +
"name='" + name + '\'' +
", price=" + price +
'}';
}
}
package com.lzhpo.demo5;
/**
* @author lzhpo
* @version 1.0
* @since JDK 1.8.0_181
* 类说明:
**/
public class Car2 {
private String name;
private Double price;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Double getPrice() {
return price;
}
public void setPrice(Double price) {
this.price = price;
}
@Override
public String toString() {
return "Car2{" +
"name='" + name + '\'' +
", price=" + price +
'}';
}
}
需要加约束:xmlns:p="http://www.springframework.org/schema/p"
package com.lzhpo.demo5;
/**
* @author lzhpo
* @version 1.0
* @since JDK 1.8.0_181
* 类说明:
**/
public class Car3 {
private String name;
private Double price;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Double getPrice() {
return price;
}
public void setPrice(Double price) {
this.price = price;
}
@Override
public String toString() {
return "Car3{" +
"name='" + name + '\'' +
", price=" + price +
'}';
}
}
package com.lzhpo.demo5;
/**
* @author lzhpo
* @version 1.0
* @since JDK 1.8.0_181
* 类说明:
**/
public class Car4 {
private String name;
private Double price;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Double getPrice() {
return price;
}
public void setPrice(Double price) {
this.price = price;
}
@Override
public String toString() {
return "Car4{" +
"name='" + name + '\'' +
", price=" + price +
'}';
}
}
package com.lzhpo.demo5;
import java.util.Arrays;
import java.util.List;
/**
* @author lzhpo
* @version 1.0
* @since JDK 1.8.0_181
* 类说明:
**/
public class Car5 {
private String[] Arrays;
public String[] getArrays() {
return Arrays;
}
public void setArrays(String[] arrays) {
Arrays = arrays;
}
@Override
public String toString() {
return "Car5{" +
"Arrays=" + java.util.Arrays.toString(Arrays) +
'}';
}
}
package com.lzhpo.demo5;
import java.util.List;
/**
* @author lzhpo
* @version 1.0
* @since JDK 1.8.0_181
* 类说明:
**/
public class Car6 {
private List list;
public List getList() {
return list;
}
public void setList(List list) {
this.list = list;
}
@Override
public String toString() {
return "Car6{" +
"list=" + list +
'}';
}
}
小民
张三
李四
老王
小花
小晓
package com.lzhpo.demo5;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
* @author lzhpo
* @version 1.0
* @since JDK 1.8.0_181
* 类说明:
**/
public class demo5 {
public static void main(String[] args) {
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring.xml");
//1.构造方法的方式注入值
Car1 car1 = (Car1) applicationContext.getBean("car1");
System.out.println("=========1.构造方法的方式注入值=========");
System.out.println(car1);
System.out.println();
//2.set、get方法的方法注入值
Car2 car2 = (Car2) applicationContext.getBean("car2");
System.out.println("=========2.setter/getter方法的方式注入值=========");
System.out.println(car2);
System.out.println();
//3.p名称方法注入值
Car3 car3 = (Car3) applicationContext.getBean("car3");
System.out.println("=========3.p名称方法的方式注入值=========");
System.out.println(car3);
System.out.println();
//4.使用SpEL的属性注入值
Car4 car4 = (Car4) applicationContext.getBean("car4");
System.out.println("=========4.使用SpEL的属性注入值=========");
System.out.println(car4);
System.out.println();
//5.Spring集合属性的注入值(数组)
Car5 car5 = (Car5) applicationContext.getBean("car5");
System.out.println("=========5.Spring集合属性的注入值(数组)=========");
System.out.println(car5);
System.out.println();
//5.Spring集合属性的注入值(list)
//换成set、map这些都是一样的道理,吧list改一下就行了
Car6 car6 = (Car6) applicationContext.getBean("car6");
System.out.println("=========5.Spring集合属性的注入值(list)=========");
System.out.println(car6);
}
}
=========1.构造方法的方式注入值=========
Car1{name='宝马', price=1000000.0}
=========2.setter/getter方法的方式注入值=========
Car2{name='奔驰', price=1500000.0}
=========3.p名称方法的方式注入值=========
Car3{name='大众', price=300000.0}
=========4.使用SpEL的属性注入值=========
Car4{name='奥迪', price=500000.0}
=========5.Spring集合属性的注入值(数组)=========
Car5{Arrays=[小民, 张三, 李四]}
=========5.Spring集合属性的注入值(list)=========
Car6{list=[老王, 小花, 小晓]}