Dubbo应用到web工程

一、创建提供者03-provider-web

（1）创建工程

创建Maven的web工程，然后创建实现类。

（2）导入依赖

Spring的版本为4.3.16

需要的依赖有：

dubbo2.7.0版本依赖
zk客户端curator依赖
servlet与jsp依赖
spring相关依赖
spring需要的commons-logging依赖
自定义00-api依赖

<dependencies>
    <!-- zk客户端依赖：curator -->
    <dependency>
      <groupId>org.apache.curator</groupId>
      <artifactId>curator-recipes</artifactId>
      <version>2.13.0</version>
    </dependency>
    <dependency>
      <groupId>org.apache.curator</groupId>
      <artifactId>curator-framework</artifactId>
      <version>2.13.0</version>
    </dependency>
 
    <!-- dubbo依赖 -->
    <dependency>
      <groupId>org.apache.dubbo</groupId>
      <artifactId>dubbo</artifactId>
      <version>2.7.0</version>
    </dependency>
 
    <!-- Spring依赖 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-expression</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring-version}</version>
    </dependency>
 
    <!-- commons-logging依赖 -->
    <dependency>
      <groupId>commons-logging</groupId>
      <artifactId>commons-logging</artifactId>
      <version>1.2</version>
    </dependency>
 
    <!--业务接口工程依赖-->
    <dependency>
      <groupId>00-api</groupId>
      <artifactId>00-api</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>
 
  </dependencies>

（3）定义web.xml

<web-app>
  <!--注册Spring配置文件-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring-*.xml</param-value>
  </context-param>
 
  <!--注册ServletContext监听器-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
 
</web-app>

（4）修改spring-provider.xml

在src/main/resources目录下

二、创建消费者03-consumer-web

（1）创建工程

创建Maven的web工程

（2）导入依赖

与提供者工程中的依赖相同

（3）定义处理器

（4）定义欢迎页面

在src/main/webapp目录下定义欢迎页面

（5）定义web.xml

<!--字符编码过滤器-->
  <filter>
    <filter-name>CharacterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>utf-8</param-value>
    </init-param>
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
 
  <!--注册中央调度器-->
  <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-*.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <!--不能写/*，不建议写/，建议扩展名方式-->
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>