技術標籤：SSM框架springjavaxmlbean

1、User類

import java.util.List;

public class User {
	private String username;
	private Integer password;
	private List<String> list;
	/**
	 * 1.使用構造注入
	 * 2.提供有參建構函式
	 * 
	 */
	public User(String username,Integer password,List list)
	{
		super();
		this.username=
 
username;
		this.password=password;
		this.list=list;
	}
	public User()
	{
		super();
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public Integer getPassword() {
		return password;
	}
	public void setPassword(Integer password)
 
 {
		this.password = password;
	}
	public List<String> getList() {
		return list;
	}
	public void setList(List<String> list) {
		this.list = list;
	}
	@Override
	public String toString() {
		return "User [username=" + username + ", password=" + password + ", list="
 
 + list + "]";
	}
	

}

2、spring配置檔案

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd">
<!-- 構造注入 -->
<bean id="user1" class="com.itheima.assemble.User">
  <constructor-arg index="0" value="Tom" ></constructor-arg>
  <constructor-arg index="1" value="123456"></constructor-arg>
  <constructor-arg index="2">
    <list>
       <value>"你好微信小程式"</value>
       <value>""你好軟體工程</value>
    </list>
  </constructor-arg>
</bean>
<!-- 設定注入 -->
<bean id="user2" class="com.itheima.assemble.User">
  <property name="Username" value="javaWeb程式開發入門"></property>
  <property name="Password" value="345678"></property>
  <property name="list">
    <list>
      <value>"你好C++"</value>
      <value>"你好Python"</value>
    </list>
  </property>
</bean>
</beans>

配置檔案中，constructor-arg元素用於定義構造方法的引數，其屬性index表示其索引（從0開始），value屬性用於設定注入的值，其子元素list來為User類中對應的list集合屬性注入值。設值注入方式裝配中property元素用於呼叫Bean例項中的setter方法完成屬性賦值，從而完成依賴注入，而其元素list同樣是為User類中對應的list集合屬性注入值
3、Test類

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

public class XmlBeanAssembleTest {
	public static void main(String[] args) {
	//載入配置檔案
	ApplicationContext app=new ClassPathXmlApplicationContext("beans5.xml");
	//構造注入輸出
	System.out.println(app.getBean("user1"));
	//設值注入輸出
	System.out.println(app.getBean("user2"));
}
}

4、程式執行結果