dubbo中间件的rest协议踩过的坑

一、所需jar包如下

            < dependency >

              < groupId >com.alibaba groupId >

              < artifactId >dubbo artifactId >

              < version >2.6.0 version >

              < exclusions >

                 < exclusion >

                     < groupId >log4j groupId >

                     < artifactId >log4j artifactId >

                 exclusion >

             exclusions >

            dependency >

            < dependency >

             < groupId >org.apache.zookeeper groupId >

             < artifactId >zookeeper artifactId >

             < version >3.4.6 version >

         dependency >

            < dependency >

          < groupId >com.101tec groupId >

          < artifactId >zkclient artifactId >

           < version >0.7 version >

            dependency >

           

二 、配置成servlet方式，与web项目共用容器，contextpath为容器下war路径

xml  version= "1.0"  encoding= "UTF-8" ?>

< beans  xmlns= "http://www.springframework.org/schema/beans"

        xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"

        xmlns:dubbo= "http://code.alibabatech.com/schema/dubbo"

        xmlns:context= "http://www.springframework.org/schema/context"

        xsi:schemaLocation= "http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-2.5.xsd

http://code.alibabatech.com/schema/dubbohttp://code.alibabatech.com/schema/dubbo/dubbo.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd" >

     < dubbo:application  name= "ft-billapplication"  logger= "slf4j" />

     

     < dubbo:protocol  name= "dubbo"  port= "20880" />

     < dubbo:protocol  name= "rest"  port= "8088"  contextpath= "ft-my"  server= "servlet" />

     < dubbo:service  interface= "io.my.ft.bill.api.CreditCardStatementApi"    ref= "creditStatementApi"  />

     < dubbo:service  interface= "io.my.ft.bill.api.CreditCardStatementQueryApi"   ref= "creditStatementQueryApi"  />

beans >

2.1  web.xml配置

       需要添加dubbo的listener与servlet，注意不要与spring mvc冲突，保证dubbo的listener与servlet优先于spring mvc加载！！！

       dubbo依赖如下：

    < listener >

         < listener-class >com.alibaba.dubbo.remoting.http.servlet.BootstrapListener listener-class >

     listener >

      < servlet >

            < servlet-name >dubboDispatcher servlet-name >

           < servlet-class >com.alibaba.dubbo.remoting.http.servlet.DispatcherServlet servlet-class >

            < load-on-startup >1 load-on-startup >

      servlet >

      < servlet-mapping >

          < servlet-name >dubboDispatcher servlet-name >

          < url-pattern >/* url-pattern >

      servlet-mapping >

    随后的spring mvc配置如下：

    < listener >

           < listener-class >org.springframework.web.context.ContextLoaderListener listener-class >

      listener >

      < servlet >

            < servlet-name >spring servlet-name >

           < servlet-class >org.springframework.web.servlet.DispatcherServlet servlet-class >

            < init- param >

                 < param-name >contextConfigLocation param-name >

                 < param-value > classpath*: biz/spring-mvc.xml param-value >

            init- param >

            < load-on-startup >1 load-on-startup >

      servlet >

      < servlet-mapping >

            < servlet-name >spring servlet-name >

             < url-pattern >/clear/gen url-pattern >

           <url-pattern>/ok.htmurl-pattern>

      servlet-mapping >

2.2 配置成servlet形式优点：与项目共用一个容器进程，缺点是：原项目中spring mvc的Controller层的http接口地址，静态资源需要在web.xml中一一列出在<url-pattern>/clear/genurl-pattern>

三、配置成非servlet方式，dubbo的rest接口单独启动一套容器进程，与项目的web容器互不影响，与spring mvc没冲突

xml  version= "1.0"  encoding= "UTF-8" ?>

< beans  xmlns= "http://www.springframework.org/schema/beans"

        xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"

        xmlns:dubbo= "http://code.alibabatech.com/schema/dubbo"

        xmlns:context= "http://www.springframework.org/schema/context"

        xsi:schemaLocation= "http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-2.5.xsd

http://code.alibabatech.com/schema/dubbohttp://code.alibabatech.com/schema/dubbo/dubbo.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd" >

     < dubbo:application  name= "ft-billapplication"  logger= "slf4j" />

     

     < dubbo:protocol  name= "dubbo"  port= "20880" />

     < dubbo:protocol  name= "rest"  port= "8088"  />

     < dubbo:service  interface= "io.my.ft.bill.api.CreditCardStatementApi"    ref= "creditStatementApi"  />

     < dubbo:service  interface= "io.my.ft.bill.api.CreditCardStatementQueryApi"   ref= "creditStatementQueryApi"  />

beans >

web.xml配置不必修改，不需要添加dubbo的listener与servlet