3月14号的javaSpring的听讲

IOC容器是用来管理bean对象的。

AOP则是面向切面编程

Spring要学会配置applicationContext.xml文件。

1.Spring中写bean类型，比如新建一个Boss类，记得加注解

package com.hhwy.spring2018.domain;

public clas Employee{

private String id;

private String userName;

private Integer age;

private Leader myLeader;

public void getId(String id){

this.id=id;}

public String getId{

return id;}

public void setUserName(String userName){

this.userName=userName;}

public String getUserName{

return userName;}

public void setAge(Integer age){

this.age=age;}

public Integer getAge{

return age;}

public void setLeader(Leader leader){

this.leader=leader;}

public  Leader getLeader{

return leader;}

@Override

public String toString(){

return "Employee[id="+id+",userName="+userName+",age="+age+",leader="+leader+"]";

}

2.建立一个测试类，进行测试的时候，用鼠标选中方法，有@Test注解..如test1,选中方法名，鼠标右键点击JUnit Test 将其运行起来

public class TestHelloworld{

ClassPathXmlApplicationContext ioc;

@Test

public void test1{

Employee employee=(Employee)ioc.getBean("employee");

System.out.println(employee);

}

3. applicationContext.xml是这样子写的