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我正在尝试根据环境变量将我的应用程序设置为使用不同的数据源定义,但我遇到了以下错误。我查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)
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2 回答 2

1

您错误地使用了classpath解析器。去掉一个不必要*的。

从改变,

<context:property-placeholder location="classpath*:*env-${MEM_ENV}.properties" />

<context:property-placeholder location="classpath*:env-${MEM_ENV}.properties" />
于 2013-02-22T10:14:55.903 回答
1

在我重新启动机器之前,系统变量似乎不起作用。之后它工作正常,(一旦我修正了monog.dbName的错字)。

我不确定是否是 Windows 的重新启动、Eclipse 的重新启动或 Tomcat 的重新启动解决了问题,因为所有这些都发生在我的重新启动时。

希望这对其他人有所帮助-如果您遇到此问题,请先尝试重新启动。

于 2013-02-23T08:23:56.033 回答