spring 注入 list和map及enum映射

 

一、注入list 

<bean id="nameList" class="java.util.ArrayList"> 
  <constructor-arg> 
   <list> 
    <value>xxx</value> 
   </list> 
  </constructor-arg> 
</bean> 

二、注入map 

方式一：
<bean id="nameMap" class="java.util.HashMap"> 
  <constructor-arg> 
   <map> 
    <entry key="xxx" value-ref="nameList" /> 
   </map> 
  </constructor-arg> 
</bean> 

方式二：
	<bean id="staragent" class="org.springframework.beans.factory.config.MapFactoryBean">
		<property name="sourceMap">
			<map>
				<entry key="default_server" value="xxxx"/>
				<entry key="aaa_key" value="aaaaa"/>
				<entry key="bbb_token" value="bbbb"/>
			</map>
		</property>
	</bean>

三、對enum映射到list上 

<bean id="myList" class="java.util.ArrayList"> 
    <constructor-arg> 
        <list> 
            <value type="org.xxx.ExampleEnum">EXAMPLE_ONE</value> 
            <value type="org.xxx.ExampleEnum">EXAMPLE_TWO</value> 
        </list> 
    </constructor-arg> 
</bean> 

四、在map中使用enum做爲key 

<bean id="map" class="java.util.HashMap"> 
  <constructor-arg> 
    <map> 
       <entry > 
   <key> 
             <value type="constants.ProcessTypeEnum">TYPE_INDEX</value> 
   </key> 
   <ref local="nylist"> 
</entry> 
    </map> 
   </constructor-arg> 
</bean>

調用方法：

@SuppressWarnings("unchecked")
	public static String getStarAgent(String key){
		LinkedHashMap<String,String> map = (LinkedHashMap<String,String>)ContextUtils.getApplicationContext().getBean("staragent");
		return map.getOrDefault(key,"");
	}

	public static List<String> getTrainServers(){
		List<String> servers = (List<String>)ContextUtils.getApplicationContext().getBean("trainservers");
		return servers;
	}