我正在尝试根据环境变量将我的应用设置为使用不同的数据源定义,但我遇到了以下错误。我看了许多类似的问题,但它们似乎并不相同。
我已经设置了多个属性文件:
env-dev.properties
env-test.properties
env-prod.properties
env-.properties
我创建了一个名为MEM_ENV的系统属性,其值为" dev"
我的spring xml文件如下所示:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:property-placeholder
location="classpath*:*env-${MEM_ENV}.properties" />
<bean id="mongoDataSource" class="com.iLearn.persistence.base.MongoDataSourceImpl">
<property name="server" value="${mongo.server}" />
<property name="port" value="${mongo.port}" />
<property name="dbName" value="${mongo.dbName}" />
<property name="userName" value="${mongo.userName}" />
<property name="password" value="${mongo.password}" />
</bean>
我的属性文件如下所示:
mongo.server=aServer.com
mongo.port=10003
monog.dbName=aDBName
mongo.userName=aUserName
mongo.password=aPassword
我得到的例外是:
message org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'mongoDataSource' defined in class path resource [springAppConfig.xml]: Could not resolve placeholder 'mongo.server' in string value "${mongo.server}"
description The server encountered an internal error (org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'mongoDataSource' defined in class path resource [springAppConfig.xml]: Could not resolve placeholder 'mongo.server' in string value "${mongo.server}") that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'mongoDataSource' defined in class path resource [springAppConfig.xml]: Could not resolve placeholder 'mongo.server' in string value "${mongo.server}"
javax.faces.webapp.FacesServlet.service(FacesServlet.java:606)
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:357)
com.iLearn.security.AccessFilter.doFilter(AccessFilter.java:43)
答案 0 :(得分:1)
您错误地使用了classpath
解析器。删除一个不必要的*
。
改变自,
<context:property-placeholder location="classpath*:*env-${MEM_ENV}.properties" />
到
<context:property-placeholder location="classpath*:env-${MEM_ENV}.properties" />
答案 1 :(得分:1)
在我重新启动计算机之前,似乎系统变量无效。之后它运行良好,(一旦我修复了monog.dbName的错字)。
我不确定是重启Windows,还是重新启动Eclipse,或重启Tomcat来解决问题,因为所有这些都是在重新启动时发生的。
希望这有助于其他人 - 如果您遇到此问题,请先尝试重启。