详解SpringMVC注解方式集成Dubbo

心已赠人 2024-04-07 11:16 185阅读 0赞

由于最近项目需要SpringMVC集成Dubbo，本文大概记录下详细集成过程：

一、首先项目中Maven引入Jar包

  1. <!-- dubbo相关 -->
  2.         <dependency>
  3.             <groupId>com.alibaba</groupId>
  4.             <artifactId>dubbo</artifactId>
  5.         </dependency>
  7.         <dependency>
  8.             <groupId>org.apache.zookeeper</groupId>
  9.             <artifactId>zookeeper</artifactId>
  10.             <version>${zookeeper.version}</version>
  11.         </dependency>

二、web.xml配置context-param（生产者）

  1. <context-param>
  2.     <param-name>contextConfigLocation</param-name>
  3.     <param-value>
  4.       classpath*:config/datasource.xml
  5.       classpath*:spring/*.xml
  6.     </param-value>
  7.   </context-param>

三、 配置spring-dubbo-provider.xml配置文件

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.        xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
  5.        xsi:schemaLocation="http://www.springframework.org/schema/beans
  6.        http://www.springframework.org/schema/beans/spring-beans.xsd
  7.        http://code.alibabatech.com/schema/dubbo
  8.        http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
  10.     <!-- 提供方应用信息，用于计算依赖关系 -->
  11.     <dubbo:application name="demo-provider"/>
  13.     <!-- 使用ZK注册中心暴露服务地址 -->
  14.     <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
  16.     <!-- 用Dubbo协议在20880端口暴露服务 -->
  17.     <dubbo:protocol name="dubbo" port="20880"/>
  19.     <!-- 扫描注解包路径，多个包用逗号分隔 -->
  20.     <dubbo:annotation package="com.ls"/>
  22. </beans>

四、 class注册成生产者

  1. @Transactional
  2. @Service
  3. public class UserServiceImpl implements IUserService {
  5. }

五、web.xml配置servlet（消费者）

  1. <servlet>
  2.         <servlet-name>dispatcherServlet</servlet-name>
  3.         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  4.         <init-param>
  5.             <param-name>contextConfigLocation</param-name>
  6.             <param-value>classpath:spring/spring-mvc-dubbo.xml</param-value>
  7.         </init-param>
  8.         <load-on-startup>1</load-on-startup>
  9.     </servlet>

六、配置spring-mvc-dubbo.xml配置文件

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.        xmlns:context="http://www.springframework.org/schema/context"
  5.        xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
  6.        xmlns:mvc="http://www.springframework.org/schema/mvc"
  7.        xsi:schemaLocation="http://www.springframework.org/schema/beans
  8.        http://www.springframework.org/schema/beans/spring-beans.xsd
  9.        http://www.springframework.org/schema/context
  10.        http://www.springframework.org/schema/context/spring-context.xsd
  11.        http://code.alibabatech.com/schema/dubbo
  12.        http://code.alibabatech.com/schema/dubbo/dubbo.xsd
  13.        http://www.springframework.org/schema/mvc
  14.        http://www.springframework.org/schema/mvc/spring-mvc.xsd">
  16.     <!-- 提供方应用信息，用于计算依赖关系 -->
  17.     <dubbo:application name="consumer"/>
  19.     <!-- 使用ZK注册中心暴露服务地址 -->
  20.     <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
  22.     <!-- 扫描注解包路径，多个包用逗号分隔 -->
  23.     <dubbo:annotation package="com.ls"/>
  25.     <!--   <dubbo:consumer check="false" timeout="3000" group ="*"/>-->
  27.     <bean id="stringHttpMessageConverter" class="org.springframework.http.converter.StringHttpMessageConverter">
  28.         <constructor-arg value="UTF-8"/>
  29.         <property name="supportedMediaTypes">
  30.             <list>
  31.                 <value>text/html;charset=utf-8</value>
  32.                 <value>application/xml;charset=utf-8</value>
  33.                 <value>application/json;charset=utf-8</value>
  34.             </list>
  35.         </property>
  36.     </bean>
  38.     <bean id="mappingJackson2HttpMessageConverter"
  39.           class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
  40.         <property name="prefixJson" value="false"/>
  41.         <property name="supportedMediaTypes">
  42.             <list>
  43.                 <value>text/html;charset=utf-8</value>
  44.                 <value>application/xml;charset=utf-8</value>
  45.                 <value>application/json;charset=utf-8</value>
  46.             </list>
  47.         </property>
  48.         <property name="objectMapper" ref="objectMapper"></property>
  49.     </bean>
  51.     <bean id="objectMapper" class="com.fasterxml.jackson.databind.ObjectMapper">
  52.         <property name="dateFormat">
  53.             <bean class="java.text.SimpleDateFormat">
  54.                 <constructor-arg value="yyyy-MM-dd HH:mm:ss" />
  55.             </bean>
  56.         </property>
  57.     </bean>
  59.     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
  60.         <property name="maxUploadSize" value="50000000"/>
  61.         <property name="maxUploadSizePerFile" value="5000000"/>
  62.         <property name="defaultEncoding" value="utf-8"/>
  63.     </bean>
  65.     <mvc:annotation-driven >
  66.         <mvc:message-converters>
  67.             <ref bean="stringHttpMessageConverter"/>
  68.             <ref bean="mappingJackson2HttpMessageConverter"/>
  69.         </mvc:message-converters>
  70.     </mvc:annotation-driven>
  73. </beans>

七、 class中引入消费者

  1. @Reference
  2.     private IUserService userService;

至此SpringMVC集成Dubbo注解配置方式以基本完成。

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