【dubbo】dubbo-admin与JDK1.8的不兼容

【问题概述】

    最近在学习dubbo，用dubbo-admin源码打成的war包，安装dubbo管理平台，部署到本机的tomcat遇到了问题，提示如下：

ERROR context.ContextLoader - Context initialization failed  
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'uriBrokerService': Cannot create inner bean '(inner bean)' of type [com.alibaba.citrus.service.uribroker.impl.URIBrokerServiceImpl$URIBrokerInfo] while setting bean property 'brokers' with key [0]; nested excepti  
on is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#25': Cannot create inner bean 'server' of type [com.alibaba.citrus.service.uribroker.uri.GenericURIBroker] while setting constructor argument; nested exception is org.springframework.beans.fact  
ory.BeanCreationException: Error creating bean with name 'server': Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'URIType' of bean class [com.alibaba.citrus.service.uribroker.uri.GenericURIBroker]: Bean property 'URIType'  
is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?  
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:230)  
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:122)  
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:287)  

【环境概述】

    · windows8 操作系统

    · Java version “1.8.0_73”

    · dubbo-admin 2.5.3

    · apache-tomcat-7.0.57

【解决方案】

    修改dubbo-admin的pom依赖，重新打一个war包，部署。

        1、webx的依赖改为3.1.6版；

<dependency>
        <groupId>com.alibaba.citrus</groupId>
        <artifactId>citrus-webx-all</artifactId>
        <version>3.1.6</version>
</dependency>

        2、添加velocity的依赖，版本为1.7；

<dependency>
        <groupId>org.apache.velocity</groupId>
        <artifactId>velocity</artifactId>
        <version>1.7</version>
</dependency>

        3、对依赖项dubbo添加exclusion，避免引入旧spring；

<dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>dubbo</artifactId>
        <version>${project.parent.version}</version>
        <exclusions>
            <exclusion>
                <groupId>org.springframework</groupId>
                <artifactId>spring</artifactId>
            </exclusion>
        </exclusions>
</dependency>

        4、webx已有spring3以上的依赖，因此注释掉dubbo-admin里面的spring依赖

<!--<dependency>-->
        <!--<groupId>org.springframework</groupId>-->
        <!--<artifactId>spring</artifactId>-->
<!--</dependency>-->

【总结】

    通过对源码做以上修改后，从Eclipse中重新生成的war包，便解决了不兼容的问题。资源链接地址：dubbo-admin war包文件，可在jdk1.8环境下直接部署到tomcat。

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