春季：如何用常量值代替構造函數參數？

Question

我正在一個項目中，我得到了一個項目配置

項目配置文件

 <bean id="awsCredentials" class="com.amazonaws.auth.BasicAWSCredentials">
        <constructor-arg
                value="${com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator.dest.ProposalManager-accessKeyId}"/>
        <constructor-arg
                value="${com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator.dest.ProposalManager-secretAccessKey}"/>
    </bean>

我正在從此處傳遞此值的位置添加測試配置

測試配置文件

<?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:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="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.xsd">

    com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator-destBucketName=bucketname
    com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator.dest.ProposalManager-accessKeyId=accesskey
    com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator.dest.ProposalManager-secretAccessKey=secretaccess key

    <bean id="spa-evaluation-factory" class="com.myorg.sparrow..business.DummySpaEvaluationFactory"/>
    <import resource="classpath:/com/myorg/sparrow/spa_adapter/project-config.xml"/>
</beans>

但這是行不通的。 我怎樣才能

具有在test-config.xml定義的變量

com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator-destBucketName=bucketname
        com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator.dest.ProposalManager-accessKeyId=accesskey
        com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator.dest.ProposalManager-secretAccessKey=secretaccess key

替代project-config.xml值

<bean id="awsCredentials" class="com.amazonaws.auth.BasicAWSCredentials">
            <constructor-arg
                    value="${com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator.dest.ProposalManager-accessKeyId}"/>

Answer 1

您可以通過這種方式進行操作，您的占位符應該得到解決。

<context:property-placeholder location="classpath*:META-INF/spring/test.properties" local-override="true" properties-ref="localProperties" ignore-resource-not-found="true"/>

<util:properties id="localProperties">
    <prop key="com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator-destBucketName">bucketname</prop>     
    <prop key="com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator.dest.ProposalManager-accessKeyId">accesskey</prop>        
    <prop key="com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator.dest.ProposalManager-secretAccessKey">secretaccess key</prop>     
</util:properties>

另一種方法是將條目包含在上面的test.properties文件中。