spring ioc简单实例

创建工程如图：

User.java：

package com.ioc.bean;

public class User {
	private String username = null;
	
	private String password = null;

	public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}
}

appcontext.xml：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>
	<bean id="user" class="com.ioc.bean.User">
		<property name="username">
			<value>yang</value>
		</property>
	</bean>
</beans>

测试代码：

package com.ioc.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.ioc.bean.User;

import junit.framework.TestCase;

public class TestUser extends TestCase {
	private static final ApplicationContext ctx = new ClassPathXmlApplicationContext("appcontext.xml");

	@Override
	protected void setUp() throws Exception {
	}

	public void testUser() {
		User user = (User)ctx.getBean("user");
		System.out.println(user.getUsername());
	}

	@Override
	protected void tearDown() throws Exception {
	}

}