Spring中多个工程下多个资源文件ignoreUnresolvablePlaceholders配置

Myth丶恋晨 2022-05-20 01:55 191阅读 0赞

<bean id="propertyConfigurerForAnalysis" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
    <property name="location">  
        <value>classpath:/spring/include/dbQuery.properties</value>  
    </property>  
</bean>  
其中classpath是引用src目录下的文件写法。

当存在多个Properties文件时，配置就需使用locations了：(2)

<property name="locations">  
       <list>  
          <value>classpath:/spring/include/jdbc-parms.properties</value>  
          <value>classpath:/spring/include/base-config.properties</value>  
        </list>  
    </property>  
</bean>  
 接下来我们要使用多个PropertyPlaceholderConfigurer来分散配置，达到整合多工程下的多个分散的Properties 文件，其配置如下：(3)  
<bean id="propertyConfigurerForProject1" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
    <property name="order" value="1" />  
    <property name="ignoreUnresolvablePlaceholders" value="true" />  
    <property name="location">  
       <value>classpath:/spring/include/dbQuery.properties</value>  
    </property>

</bean>

<bean id="propertyConfigurerForProject2" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
    <property name="order" value="2" />  
    <property name="ignoreUnresolvablePlaceholders" value="true" />  
    <property name="locations">  
      <list>  
        <value>classpath:/spring/include/jdbc-parms.properties</value>  
        <value>classpath:/spring/include/base-config.properties</value>  
      </list>  
    </property>  
</bean>  
   
其中order属性代表其加载顺序，而ignoreUnresolvablePlaceholders为是否忽略不可解析的 Placeholder，如配置了多个PropertyPlaceholderConfigurer，则需设置为true  
这一个true害了我两天的时间啊）