dubbo-admin在jdk1.8下报错问题（已解决）

在虚拟机上部署dubbo-admin的时候报错：

 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)

查看源码如下：

set方法不很标准，导致高版本jdk（jre）不能支持，导致报错。

解决方法：

1、更换服务器jdk版本。

2、修改dubbo-admin tomcat默认jdk版本。

3、修改dubbo-admin项目依赖（dependency）从新打包。

主要说下第三种方法：

https://github.com/alibaba/dubbo.git

下载导入源码后，修改如下配置：

1、webx的依赖改为3.1.6版

 <dependency>
     <groupId>com.alibaba.citrusgroupId>
     <artifactId>citrus-webx-allartifactId>
     <version>3.1.6version>
 dependency>

2、添加velocity的依赖，我用了1.7

 <dependency>
     <groupId>org.apache.velocitygroupId>
     <artifactId>velocityartifactId>
     <version>1.7version>
 dependency>

3、对依赖项dubbo添加exclusion，避免引入旧spring

 <dependency>
     <groupId>com.alibabagroupId>
     <artifactId>dubboartifactId>
     <version>${project.parent.version}version>
     <exclusions>
         <exclusion>
             <groupId>org.springframeworkgroupId>
             <artifactId>springartifactId>
         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

逐个项目编译，重新打包，部署。