spring 配置文件中如何注入map list set等类型

妖狐艹你老母 2022-06-13 10:49 190阅读 0赞

先定义一个bean

import java.util.List;
    import java.util.Map;
    import java.util.Properties;
    import java.util.Set;
    
    public class MessageBean {
    	private String username;
    	private String password;
    	private int size;
    	private List<String> citys;
    	private Set<String> friends;
    	private Map<Integer,String> books;
    	private Properties props;
    	
    	public void setProps(Properties props) {
    		this.props = props;
    	}
    
    	public void setFriends(Set<String> friends) {
    		this.friends = friends;
    	}
    
    	public void setSize(int size) {
    		this.size = size;
    	}
    
    	public void setPassword(String password) {
    		this.password = password;
    	}
    
    	public void setUsername(String username) {
    		this.username = username;
    	}
    
    	public void setCitys(List<String> citys) {
    		this.citys = citys;
    	}
    
    	public void setBooks(Map<Integer, String> books) {
    		this.books = books;
    	}
    }

在xml里配置

<beans>
    	<bean id="userdao"
    		 class="com.user.impl.UserDAO">
    	</bean>
    	
    	<bean id="useraction"
    		 class="com.action.UserAction">
    		 <property name="userDao" ref="userdao">
    		 </property>
    	</bean>
    	
    	<bean id="useraction1"
    			 class="com.action.UserAction2">
    			 <constructor-arg index="0" ref="userdao"/>
    	</bean>
    	
    	<bean id="messagebean" 
    			class="com.bean.MessageBean">
    			<property name="props">
    				<props>
    					<prop key="url">http://www.sina.com.cn</prop>
    					<prop key="username">lisi</prop>
    					<prop key="password">123456</prop>
    				</props>
    			</property>
    			
    			<property name="books">
    				<map>
    					<entry key="10" value="playboy">
    					</entry>
    					<entry key="11" value="java">
    					</entry>
    					<entry key="12" value="rdis">
    					</entry>
    				</map>
    			</property>
    			<property name="friends">
    				<set>
    					<value>张3</value>
    					<value>李4</value>
    					<value>王5</value>
    				</set>
    			</property>
    			
    			<property name="citys">
    				<list>
    					<value>北京</value>
    					<value>上海</value>
    					<value>广州</value>
    				</list>
    			</property>
    			
    			<property name="username">
    				<value>admin</value>
    			</property>
    			<property name="password">
    				<value>123456</value>
    			</property>
    			<property name="size">
    				<value>25</value>
    			</property>
    	</bean>
    	
    </beans>