Spring中的集合

List

 

 

@Te
 public void testList(){

       ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:list.xml");

       EmpServiceImpl empServiceImpl = (EmpServiceImpl) ac.getBean("empServiceImpl");

       List<AddressServiceImpl> list = empServiceImpl.getList1();

    }

 

 

或

package cn.csdn.service;

import java.util.List;

public class EmpServiceImpl {

    private AddressServiceImpl addressServiceImpl;

    private List<AddressServiceImpl> list1;
   
 public void setAddressServiceImpl(AddressServiceImpl addressServiceImpl) {

       this.addressServiceImpl = addressServiceImpl;

    }

    public AddressServiceImpl getAddressServiceImpl() {

       return addressServiceImpl;

    }

    public List<AddressServiceImpl> getList1() {

       return list1;

    }

    public void setList1(List<AddressServiceImpl> list1) {

       this.list1 = list1;

    }
}

 

 

 

 

@Test
    public void testList(){
       ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:list.xml");
       EmpServiceImpl empServiceImpl = (EmpServiceImpl) ac.getBean("empServiceImpl");
       List<AddressServiceImpl> list = empServiceImpl.getList1();
    }

 

 

<?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-2.0.xsd">

<bean id="empServiceImpl" class="cn.csdn.service.EmpServiceImpl" scope="singleton">

    <property name="list">

       <list>

       <value>1</value>

       <value>2</value>

       <value>3</value>

       <value>4</value>

       </list>

    </property>

</bean>

</beans>

 

Map

package cn.csdn.service;

import java.util.Map;

public class EmpServiceImpl {

    private AddressServiceImpl addressServiceImpl;

    private Map<String,Integer> map;

    public void setAddressServiceImpl(AddressServiceImpl addressServiceImpl) {

       this.addressServiceImpl = addressServiceImpl;

    }

    public Map<String, Integer> getMap() {

       return map;

    }

    public void setMap(Map<String, Integer> map) {

       this.map = map;

    }

    public AddressServiceImpl getAddressServiceImpl() {

       return addressServiceImpl;

    }

}

 

 

@Test

    public void testMap(){

        ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:map.xml");

         EmpServiceImpl empServiceImpl = (EmpServiceImpl) ac.getBean("empServiceImpl");   

        Map<String,Integer> map = empServiceImpl.getMap();

    }

 

 

   

Set

package cn.csdn.service;

import java.util.Set;

public class EmpServiceImpl {

    private AddressServiceImpl addressServiceImpl;

    private Set<AddressServiceImpl> set; 

     public void setAddressServiceImpl(AddressServiceImpl addressServiceImpl) {

       this.addressServiceImpl = addressServiceImpl;

    }

    public Set<AddressServiceImpl> getSet() {

       return set;

    }

    public void setSet(Set<AddressServiceImpl> set) {

       this.set = set;

    }

    public AddressServiceImpl getAddressServiceImpl() {

       return addressServiceImpl;

    }

}

 @Test

    public void testSet(){

       ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:set.xml");

       EmpServiceImpl empServiceImpl = (EmpServiceImpl) ac.getBean("empServiceImpl");

       Set<AddressServiceImpl> set = empServiceImpl.getSet();

       System.out.println(set.size());
    }

<?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-2.0.xsd">

  <bean id="addressServiceImpl" class="cn.csdn.service.AddressServiceImpl" scope="singleton">

    <property name="name">

      <value>北京</value>

    </property>

  </bean>

  <bean id="empServiceImpl" class="cn.csdn.service.EmpServiceImpl" scope="singleton">

   <property name="set">

       <set>

          <ref bean="addressServiceImpl"/>

       </set>

   </property>

  </bean>

</beans>

  

 

 Props

package cn.csdn.service;

import java.util.Properties;

public class EmpServiceImpl {

    private AddressServiceImpl addressServiceImpl; 

    private Properties prop;

    public void setAddressServiceImpl(AddressServiceImpl addressServiceImpl) {

       this.addressServiceImpl = addressServiceImpl;

    }

    public AddressServiceImpl getAddressServiceImpl() {

       return addressServiceImpl;

    }

    public Properties getProp() {

       return prop;

    }

    public void setProp(Properties prop) {

       this.prop = prop;

    }

}

 @Test

    public void testProps(){

       ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:props.xml");

       EmpServiceImpl empServiceImpl = (EmpServiceImpl) ac.getBean("empServiceImpl");

       Properties props = empServiceImpl.getProp();

    }

<?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-2.0.xsd">

<bean id="empServiceImpl" class="cn.csdn.service.EmpServiceImpl" scope="singleton">

    <property name="prop">

       <props>

           <prop key="1">baolin</prop>

           <prop key="2">xiaolin</prop>

           <prop key="3">xinlin</prop>

       </props>

    </property>

</bean>

</beans>

  

 

Null

package cn.csdn.service;

public class EmpServiceImpl {

    private AddressServiceImpl addressServiceImpl;

    public void setAddressServiceImpl(AddressServiceImpl addressServiceImpl) {

       this.addressServiceImpl = addressServiceImpl;

    }

    public AddressServiceImpl getAddressServiceImpl() {

       return addressServiceImpl;

    }

}

@Test

    public void testnull(){

       ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:null.xml");

       EmpServiceImpl empServiceImpl = (EmpServiceImpl) ac.getBean("empServiceImpl");

       AddressServiceImpl addr = empServiceImpl.getAddressServiceImpl();

    }

  

 

<?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-2.0.xsd">

  <bean id="empServiceImpl" class="cn.csdn.service.EmpServiceImpl" scope="singleton">

  <!--在2.5或3.0版本它都支持下面这种写法--> 

   <property name="addressServiceImpl">

      <null/>

   </property>

   <!—在2.5或3.0版本它都不支持下面这种写法

<property name="addressServiceImpl">

     <value>null</value>

   </propert

  -->
</bean>
</beans>