spring为集合属性赋值{map,list,set,properties}

第一步：新建工程   SecondSpring

文件目录结构如下：

第二步： 导入相关的spring jar包

略...

 

第三步：　新建类

GatherTest.java

package com.xuzhiwen.spring5;

import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

public class GatherTest {
    public List<Object> list;
    public List<Object> objlist;
    public Map<String,Object> map;
    public Set<Object> set;
    public Properties properties;
    
    public void setList(List<Object> list) {
        this.list = list;
    }
    
    public void setObjlist(List<Object> objlist) {
        this.objlist = objlist;
    }
    
    public void setMap(Map<String, Object> map) {
        this.map = map;
    }
    public void setSet(Set<Object> set) {
        this.set = set;
    }
    public void setProperties(Properties properties) {
        this.properties = properties;
    }

    @Override
    public String toString() {
        return "GatherTest [list=" + list +", objlist=" + objlist + ", map="
                + map + ", set=" + set + ", properties=" + properties + "]";
    }
}

 

Person1.java

package com.xuzhiwen.spring5;

public class Person1 {
    public String name;
    
    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Person1 [name=" + name + "]";
    }
}

Person2.java

package com.xuzhiwen.spring5;

public class Person2 {
    public String name;
    
    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Person2 [name=" + name + "]";
    }
}

 

第四步： 新建配置文件

common.xml

<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-2.5.xsd">
    
    <import resource="xmlfolder/app1.xml" />
    <import resource="xmlfolder/innerbean.xml" />
    <import resource="xmlfolder/singleton.xml" />
    <import resource="xmlfolder/annotation.xml" />
    <import resource="xmlfolder/gather.xml" />
    
</beans>    

 

annotation.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
    
    <bean id="gather" class="com.xuzhiwen.spring5.GatherTest">
        <!-- 给list赋值 ======================================================-->
        <property name="list">
            <list>
                <value>张三</value>
                <value>李四</value>
                <value>王五</value>
            </list>
        </property>
        
        <property name="objlist">
            <list>
                <ref bean="person1" />
                <ref bean="person2" />
            </list>
        </property>
        
        <!-- 给map赋值 ======================================================-->
        <property name="map">
            <map>
                <entry key="key1" value="value1" />
                <entry key="key2" value="value2" />
                <entry key="key3" value="value3" />
                
                <entry key="key4" value-ref="person1" />
                <entry key="key5" value-ref="person2" />
            </map>            
        </property>
        
        <!-- 给set赋值 ======================================================-->
        <property name="set">
            <set>
                <ref local="person1" />
                <ref local="person2" />
            </set>
        </property>
        
        <!-- 给properties赋值============================================= -->
        <property name="properties">
            <props>
                <prop key="aaaa">aaaa</prop>
                <prop key="bbbb">bbbb</prop>
            </props>
        </property>
    </bean>
    
    
    
    
    <!-- ====================================================== -->
    <!-- person1 -->
    <bean id="person1" class="com.xuzhiwen.spring5.Person1">
        <property name="name" value="xuzhiwen" />
    </bean>
    
    <!-- person2 -->
    <bean id="person2" class="com.xuzhiwen.spring5.Person2">
        <property name="name" value="fanjialing" />
    </bean>
    
</beans>    

 

第五步：新建测试类

Test.java

package com.xuzhiwen.spring5;

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

public class Test {
    public static void main(String[] args) {
        ApplicationContext app = new ClassPathXmlApplicationContext("common.xml");
        GatherTest test = (GatherTest) app.getBean("gather");
        System.out.println(test);
    }
}

 

第六步：运行结果如下

 GatherTest [list=[张三, 李四, 王五],
 objlist=[Person1 [name=xuzhiwen], Person2 [name=fanjialing]], 
 map={key1=value1, key2=value2, key3=value3, key4=Person1 [name=xuzhiwen], key5=Person2 [name=fanjialing]},
 set=[Person1 [name=xuzhiwen], Person2 [name=fanjialing]],
 properties={aaaa=aaaa, bbbb=bbbb}]