我有一个属性文件 -
application.properties(内容如下)
core.microsite=q=MarketId:${marketId}&q=PresaleOff
这是我的spring config xml -
<bean id="myBean" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="ignoreUnresolvablePlaceholders" value="true" />
<property name="location" value="classpath:/application.properties" />
</bean>
<bean id="MyQueryBuilder" class="com.search.builder.impl.MyQueryBuilder">
<property name="queryTemplateMap">
<map>
<entry key="microsite" value="${core.microsite}" />
</map>
</property>
</bean>
现在在服务器启动时(tomocat)我得到了这个异常 -
ug 29, 2012 11:50:05 AM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'MyQueryBuilder' defined in URL [jar:file:/C:/apache-tomcat-6.0.35/webapps/my-service/WEB-INF/lib/my-app-1.0.2.RC8-SNAPSHOT.jar!/META-INF/spring/config/app-context.xml]: Could not resolve placeholder 'marketId'
at org.springframework.beans.factory.config.PropertyPlaceholderConfigurer.processProperties(PropertyPlaceholderConfigurer.java:287)
at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:75)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:663)
它明显失败,因为core.microsite属性内部还有一个占位符 $ {marketId}
如何解决此问题?
将“ignoreUnresolvablePlaceholders”设置为true应该有效(理论上)。不知道现在该怎么办?
感谢任何指针!
感谢。
答案 0 :(得分:1)
我不完全确定错误的根本原因,但可以推荐一些解决方法:
解决方法1 :以这种方式更改占位符的前缀:
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:/application.properties"/>
<property name="placeholderPrefix" value="%{"></property>
</bean>
<bean id="MyQueryBuilder" class="com.search.builder.impl.MyQueryBuilder">
<property name="queryTemplateMap">
<map>
<entry key="microsite" value="%{core.microsite}" />
</map>
</property>
</bean>
解决方法2 :如果您绝对需要将您的房产价值设为$,那么暂时将$ {marketId}更改为其他名称为%{marketId},请@PostConstruct
在MyQueryBuilder上查看地图条目,找到并用$ {marketId}替换所有出现的%{marketId}