1、安装好tomcat之后，

下载并且编译最新的dubbo-admin 如图：

1、修改WEB-INF中的dubbo.properties

dubbo.registry.address=zookeeper://192.168.1.87:2181//zookeeper的地址

dubbo.admin.root.password=root
dubbo.admin.guest.password=guest

2、删除原tomcat/webapps/ROOT目录下的所有文件，同时复制dubbo-admin解压后的内容到tomcat/webapps/ROOT中

3、启动tomcat

4、访问对应的ip地址

如果出现：

INFOcontext.InheritableListablebeanfactory-Destroyingsingletonsincom.alibaba.citrus.springext.support.context.InheritableListablebeanfactory@55af05cd:definingbeans[org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalrequiredAnnotationProcessor,com.alibaba.citrus.service.configuration.support.PropertyPlaceholderConfigurer#0,templateService,mappingRuleService,dataResolverService,exceptionPipeline,resourceLoadingService,messageSource,uriBrokerService,restfulRewrite,org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,dubbo-admin,com.alibaba.dubbo.config.RegistryConfig,registryService,configService,consumerService,overrideService,ownerService,providerService,routeService,userService,governanceCache,productionModeSensiblePostProcessor,webxConfiguration,requestContexts,com.alibaba.citrus.service.requestcontext.impl.RequestContextbeanfactoryPostProcessor#0,uploadService,pullService,formService,module.screen.Error404,module.screen.ErrorOther,moduleLoaderService,messageResourceService,com.alibaba.citrus.webx.context.WebxComponentsLoader$WebxComponentsCreator];rootoffactoryhierarchy
ERRORcontext.ContextLoader-ContextinitializationFailed
org.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname'uriBrokerService':Cannotcreateinnerbean'(innerbean)'oftype[com.alibaba.citrus.service.uribroker.impl.URIBrokerServiceImpl$URIBrokerInfo]whilesettingbeanproperty'brokers'withkey[0];nestedexceptionisorg.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname'(innerbean)#25':Cannotcreateinnerbean'server'oftype[com.alibaba.citrus.service.uribroker.uri.GenericURIBroker]whilesettingconstructorargument;nestedexceptionisorg.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname'server':Errorsettingpropertyvalues;nestedexceptionisorg.springframework.beans.NotWritablePropertyException:Invalidproperty'URIType'ofbeanclass[com.alibaba.citrus.service.uribroker.uri.GenericURIBroker]:Beanproperty'URIType'isnotwritableorhasaninvalidsettermethod.Doestheparametertypeofthesettermatchthereturntypeofthegetter?
atorg.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:230)
atorg.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:122)
atorg.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:287)
atorg.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:126)
atorg.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.applyPropertyValues(AbstractAutowireCapablebeanfactory.java:1245)
atorg.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.populateBean(AbstractAutowireCapablebeanfactory.java:1010)
142)
atjava.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
atjava.lang.Thread.run(Thread.java:745)
Causedby:org.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname'(innerbean)#25':Cannotcreateinnerbean'server'oftype[com.alibaba.citrus.service.uribroker.uri.GenericURIBroker]whilesettingconstructorargument;nestedexceptionisorg.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname'server':Errorsettingpropertyvalues;nestedexceptionisorg.springframework.beans.NotWritablePropertyException:Invalidproperty'URIType'ofbeanclass[com.alibaba.citrus.service.uribroker.uri.GenericURIBroker]:Beanproperty'URIType'isnotwritableorhasaninvalidsettermethod.Doestheparametertypeofthesettermatchthereturntypeofthegetter?
atorg.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:230)
atorg.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:117)
atorg.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:479)
atorg.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:219)
...34more
Causedby:org.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname'server':Errorsettingpropertyvalues;nestedexceptionisorg.springframework.beans.NotWritablePropertyException:Invalidproperty'URIType'ofbeanclass[com.alibaba.citrus.service.uribroker.uri.GenericURIBroker]:Beanproperty'URIType'isnotwritableorhasaninvalidsettermethod.Doestheparametertypeofthesettermatchthereturntypeofthegetter?
atorg.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.applyPropertyValues(AbstractAutowireCapablebeanfactory.java:1279)
atorg.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.populateBean(AbstractAutowireCapablebeanfactory.java:1010)
atorg.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.doCreateBean(AbstractAutowireCapablebeanfactory.java:472)
atorg.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory$1.run(AbstractAutowireCapablebeanfactory.java:409)
atjava.security.AccessController.doPrivileged(NativeMethod)
atorg.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBean(AbstractAutowireCapablebeanfactory.java:380)
atorg.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:219)
...44more
Causedby:org.springframework.beans.NotWritablePropertyException:Invalidproperty'URIType'ofbeanclass[com.alibaba.citrus.service.uribroker.uri.GenericURIBroker]:Beanproperty'URIType'isnotwritableorhasaninvalidsettermethod.Doestheparametertypeofthesettermatchthereturntypeofthegetter?
atorg.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:801)

这些错误

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！