spring - 无法从spring-servlet.xml创建propertyConfigurer的bean

WEB-INF / spring-servlet.xml的相关定义如下。

    <bean id="propertyConfigurer"
              class="org.jasypt.spring31.properties.EncryptablePropertyPlaceholderConfigurer">
              <constructor-arg ref="standardEncryptor" />
              <property name="locations">
                    <list>
                            <value>classpath:#{systemProperties.env} jdbc_server.properties</value>
                            <value>classpath:#{systemProperties.env} DBIB.properties</value>
                            <value>classpath:#{systemProperties.env}smtp.properties</value>
                            <value>classpath:#{systemProperties.env}templatedatabase.properties
                            </value>
                            <value>classpath:InstanceOrderWFEmail.properties</value>
                    </list>
            </property>
            <property name="ignoreUnresolvablePlaceholders" value="true" />
    </bean>

看起来“ systemProperties”不是系统属性的有效引用名称。从tomcat加载应用程序时出现以下错误。

    15-Aug-2018 15:53:26.599 SEVERE [http-nio-8080-exec-18] org.apache.catalina.core.ApplicationContext.log StandardWrapper.Throwable

    org.springframework.beans.factory.BeanCreationException:

    Error creating bean with name 'propertyConfigurer' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]:

    Initialization of bean failed;

    nested exception is org.springframework.beans.factory.BeanExpressionException:

    Expression parsing failed; nested exception is org.springframework.expression.spel.SpelEvaluationException:

    EL1008E: Property or field 'env' cannot be found on object of type 'java.util.Properties' - maybe not public?

最佳答案

引用JVM属性的语法“：＃{systemProperties.env}”是正确的。我只需要添加-Denv =即可使其正常工作。