1.IOC本质
2.HelloSpring
package com.kakafa.pojo;
public class Hello {
private String str;
public String getStr() {
return str;
}
public void setStr(String str) {
this.str = str;
}
@Override
public String toString() {
return "Hello{" +
"str='" + str + '\'' +
'}';
}
}
<?xml version="1.0" encoding="UTF-8"?>
import com.kakafa.pojo.Hello;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class MyTest {
public static void main(String[] args) {
//获取Spring的上下文对象
ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
//我们的对象现在都在Spring中管理了。要使用直接到里面取出来就可以了
Hello hello = (Hello)context.getBean("hello");
System.out.println(hello.toString());
}
}