1、程序结构
2、各个文件
ByeService.java
package com.service; public class ByeService { private String name; public String getName() { return name; } public void setName(String name) { this.name = name; } public void sayBye() { System.out.println("Bye " + name); } }
UserService.java
package com.service; public class UserService { private String name; private ByeService byeService2; public ByeService getByeService2() { return byeService2; } public void setByeService2(ByeService byeService2) { this.byeService2 = byeService2; } public String getName() { return name; } public void setName(String name) { this.name = name; } public void sayHello() { System.out.println("hello " + name); byeService2.sayBye(); } }
Test.java
package com.test; import com.service.UserService; import com.util.ApplicationContextUtil; public class Test { public static void main(String[] args) { ((UserService) ApplicationContextUtil.getApplicationContext().getBean( "userService")).sayHello(); } }
ApplicationContextUtil.java
package com.util; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; final public class ApplicationContextUtil { private static ApplicationContext ac = null; private ApplicationContextUtil() { } static { ac = new ClassPathXmlApplicationContext("applicationContext.xml"); } public static ApplicationContext getApplicationContext() { return ac; } }
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?> <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" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"> <!-- 在容器文件中配置bean(service/dao/domain/action/数据源 --> <!-- 配置bean和注入属性 --> <!-- 相当于新建了一个userService对象 --> <bean id="userService" class="com.service.UserService"> <!-- 相当于调用了name的setName()方法 --> <property name="name"> <value>涂富杰</value> </property> <property name="byeService2" ref="byeService"></property> </bean> <bean id="byeService" class="com.service.ByeService"> <property name="name" value="小杰" /> </bean> </beans>
时间: 2024-10-08 16:16:45