Spring配置报错

最新推荐文章于 2025-06-12 14:06:56 发布

yin_jw

最新推荐文章于 2025-06-12 14:06:56 发布

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1. 报错信息

Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'tables'
	at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:173)
	at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:125)
	at org.springframework.beans.factory.config.PropertyPlaceholderConfigurer$PlaceholderResolvingStringValueResolver.resolveStringValue(PropertyPlaceholderConfigurer.java:255)
	at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:748)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:717)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:707)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
	... 28 more

解决办法：

1) 检查配置的文件路径，文件内容是否正确

2) 当配置了多个PropertyPlaceholderConfigurer时，需要增加一些配置项。

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
  <property name="order" value="1"/>
  <property name="ignoreUnresolvablePlaceholders" value="true"/>
  <property name="locations">
  	<list>
  		<value>classpath:config/dbcp.properties</value>
		<value>classpath:config/common.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