dubbo-admin-2.5.4在tomcat中部署失败的问题

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最近在研究dubbo，避免不了从最简单的开始。按照网上教程启动zookeeper,启动tomcat时总是报错，

ERROR context.ContextLoader - Context initialization failedorg.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 exception 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.factory.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)

查了很久，终于发现问题所在，现在记录下

原来是我用的jdk版本太高，jdk8, dubbo默认用的spring版本比较旧，冲突导致，作如下修改即可

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，我用了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spring 3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>-->

重新编译dubbo放tomcat运行，成功启动！

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