5.Dubbo之Spring XML配置

谁借莪１个温暖的怀抱￠ 2022-05-15 01:45 270阅读 0赞

一、演示

1.包结构

70

2.dubbo-spring-xml

maven父工程

2.1pom.xml配置

  1. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  2.     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  3.     <modelVersion>4.0.0</modelVersion>
  4.     <groupId>org.niugang</groupId>
  5.     <artifactId>dubbo-spring-xml</artifactId>
  6.     <version>0.0.1-SNAPSHOT</version>
  7.     <packaging>pom</packaging>
  8.     <modules>
  9.         <module>dubbo-spring-xml-provider</module>
  10.         <module>dubbo-spring-xml-customer</module>
  11.         <module>dubbo-spring-xml-api</module>
  12.     </modules>
  13.     <properties>
  14.         <!-- Generic properties -->
  15.         <java.version>1.7</java.version>
  16.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  17.         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
  18.         <!-- Web -->
  19.         <jsp.version>2.2</jsp.version>
  20.         <jstl.version>1.2</jstl.version>
  21.         <servlet.version>3.1.0</servlet.version>
  22.         <!-- Spring -->
  23.         <spring-framework.version>4.3.10.RELEASE</spring-framework.version>
  24.         <!-- Logging -->
  25.         <logback.version>1.0.13</logback.version>
  26.         <slf4j.version>1.7.5</slf4j.version>
  27.     </properties>
  28.     <dependencyManagement>
  31.         <dependencies>
  32.             <dependency>
  33.                 <groupId>javax</groupId>
  34.                 <artifactId>javaee-web-api</artifactId>
  35.                 <version>7.0</version>
  36.                 <scope>provided</scope>
  37.             </dependency>
  39.             <!-- Spring MVC -->
  40.             <dependency>
  41.                 <groupId>org.springframework</groupId>
  42.                 <artifactId>spring-webmvc</artifactId>
  43.                 <version>${spring-framework.version}</version>
  44.             </dependency>
  46.             <!-- 其他web依赖 -->
  47.             <dependency>
  48.                 <groupId>javax.servlet</groupId>
  49.                 <artifactId>jstl</artifactId>
  50.                 <version>${jstl.version}</version>
  51.             </dependency>
  53.             <dependency>
  54.                 <groupId>javax.servlet</groupId>
  55.                 <artifactId>javax.servlet-api</artifactId>
  56.                 <version>${servlet.version}</version>
  57.                 <scope>provided</scope>
  58.             </dependency>
  60.             <dependency>
  61.                 <groupId>javax.servlet.jsp</groupId>
  62.                 <artifactId>jsp-api</artifactId>
  63.                 <version>${jsp.version}</version>
  64.                 <scope>provided</scope>
  65.             </dependency>
  67.             <!-- Spring and Transactions -->
  68.             <dependency>
  69.                 <groupId>org.springframework</groupId>
  70.                 <artifactId>spring-tx</artifactId>
  71.                 <version>${spring-framework.version}</version>
  72.             </dependency>
  74.             <!-- 使用SLF4J和LogBack作为日志 -->
  75.             <dependency>
  76.                 <groupId>org.slf4j</groupId>
  77.                 <artifactId>slf4j-api</artifactId>
  78.                 <version>${slf4j.version}</version>
  79.             </dependency>
  80.             <dependency>
  81.                 <groupId>log4j</groupId>
  82.                 <artifactId>log4j</artifactId>
  83.                 <version>1.2.16</version>
  84.             </dependency>
  85.             <dependency>
  86.                 <groupId>org.slf4j</groupId>
  87.                 <artifactId>jcl-over-slf4j</artifactId>
  88.                 <version>${slf4j.version}</version>
  89.             </dependency>
  90.             <dependency>
  91.                 <groupId>ch.qos.logback</groupId>
  92.                 <artifactId>logback-classic</artifactId>
  93.                 <version>${logback.version}</version>
  94.             </dependency>
  95.             <dependency>
  96.                 <groupId>ch.qos.logback</groupId>
  97.                 <artifactId>logback-core</artifactId>
  98.                 <version>${logback.version}</version>
  99.             </dependency>
  100.             <dependency>
  101.                 <groupId>ch.qos.logback</groupId>
  102.                 <artifactId>logback-access</artifactId>
  103.                 <version>${logback.version}</version>
  104.             </dependency>
  106.             <!--对json和xml格式的支持 -->
  107.             <!-- <dependency> <groupId>com.fasterxml.jackson.dataformat</groupId> 
  108.                 <artifactId>jackson-dataformat-xml</artifactId> <version>2.5.3</version> 
  109.                 </dependency> -->
  110.             <!--配置springmvc信息转化为json所需的json包 -->
  111.             <dependency>
  112.                 <groupId>com.fasterxml.jackson.core</groupId>
  113.                 <artifactId>jackson-databind</artifactId>
  114.                 <version>2.8.6</version>
  115.             </dependency>
  116.             <dependency>
  117.                 <groupId>com.fasterxml.jackson.core</groupId>
  118.                 <artifactId>jackson-databind</artifactId>
  119.                 <version>2.8.6</version>
  120.             </dependency>
  121.             <dependency>
  122.                 <groupId>com.fasterxml.jackson.core</groupId>
  123.                 <artifactId>jackson-annotations</artifactId>
  124.                 <version>2.8.6</version>
  125.             </dependency>
  126.             <dependency>
  127.                 <groupId>com.fasterxml.jackson.core</groupId>
  128.                 <artifactId>jackson-core</artifactId>
  129.                 <version>2.8.6</version>
  130.             </dependency>
  132.             <!-- 非必需，可简化IO操作 -->
  133.             <dependency>
  134.                 <groupId>commons-io</groupId>
  135.                 <artifactId>commons-io</artifactId>
  136.                 <version>2.3</version>
  137.             </dependency>
  139.             <dependency>
  140.                 <groupId>org.springframework</groupId>
  141.                 <artifactId>spring-test</artifactId>
  142.                 <version>${spring-framework.version}</version>
  143.                 <scope>test</scope>
  144.             </dependency>
  145.             <dependency>
  146.                 <groupId>org.springframework</groupId>
  147.                 <artifactId>spring-jdbc</artifactId>
  148.                 <version>${spring-framework.version}</version>
  149.                 <scope>test</scope>
  150.             </dependency>
  152.             <dependency>
  153.                 <groupId>org.aspectj</groupId>
  154.                 <artifactId>aspectjrt</artifactId>
  155.                 <version>1.8.6</version>
  156.             </dependency>
  157.             <!--aspectj依赖 -->
  158.             <dependency>
  159.                 <groupId>org.aspectj</groupId>
  160.                 <artifactId>aspectjtools</artifactId>
  161.                 <version>1.8.9</version>
  162.             </dependency>
  163.             <dependency>
  164.                 <groupId>org.aspectj</groupId>
  165.                 <artifactId>aspectjweaver</artifactId>
  166.                 <version>1.7.4</version>
  167.             </dependency>
  169.             <dependency>
  170.                 <groupId>junit</groupId>
  171.                 <artifactId>junit</artifactId>
  172.                 <version>4.11</version>
  173.                 <scope>test</scope>
  174.             </dependency>
  176.             <!--dubbo -->
  177.             <dependency>
  178.                 <groupId>com.alibaba</groupId>
  179.                 <artifactId>dubbo</artifactId>
  180.                 <version>2.5.8</version>
  181.             </dependency>
  182.             <!--redis -->
  183.             <dependency>
  184.                 <groupId>redis.clients</groupId>
  185.                 <artifactId>jedis</artifactId>
  186.                 <version>2.9.0</version>
  187.             </dependency>
  189.         </dependencies>
  190.     </dependencyManagement>
  191. </project>

3.dubbo-spring-xml-api

对外暴露RPC接口模块

3.1pom.xml

  1. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  2.   <modelVersion>4.0.0</modelVersion>
  3.   <parent>
  4.     <groupId>org.niugang</groupId>
  5.     <artifactId>dubbo-spring-xml</artifactId>
  6.     <version>0.0.1-SNAPSHOT</version>
  7.   </parent>
  8.   <artifactId>dubbo-spring-xml-api</artifactId>
  9. </project>

3.2Bean配置

70 1

  1. package org.niugang.bean;
  2. /**
  3.  * 
  4.  * @ClassName:  DefaultBean   
  5.  * @Description:默认Bean
  6.  * @author: niugang
  7.  * @date:   2018年8月22日 下午5:30:27   
  8.  * @Copyright: 863263957@qq.com. All rights reserved. 
  9.  *
  10.  */
  11. public class DefaultBean {
  12.     private String str;
  13.     private String methodName;
  14.     private long timestamp;
  16.     public String getStr() {
  17.         return str;
  18.     }
  20.     public void setStr(String str) {
  21.         this.str = str;
  22.     }
  24.     public String getMethodName() {
  25.         return methodName;
  26.     }
  28.     public void setMethodName(String methodName) {
  29.         this.methodName = methodName;
  30.     }
  32.     public long getTimestamp() {
  33.         return timestamp;
  34.     }
  36.     public void setTimestamp(long timestamp) {
  37.         this.timestamp = timestamp;
  38.     }
  40.     @Override
  41.     public String toString() {
  42.         return "DefaultBean [str=" + str + ", methodName=" + methodName + ", timestamp=" + timestamp + "]";
  43.     }
  46. }

3.3Service

  1. package org.niugang.service;
  3. /**
  4.  * 
  5.  * @ClassName:  DefaultApiService   
  6.  * @Description:对外暴露API接口  
  7.  * @author: niugang
  8.  * @date:   2018年8月22日 下午5:27:21   
  9.  * @Copyright: 863263957@qq.com. All rights reserved. 
  10.  *
  11.  */
  12. public interface DefaultApiService {
  14.     /**
  15.      * 默认方法
  16.      * @param str
  17.      * @return
  18.      */
  19.     String defaultMethod(String str);
  21. }

4.dubbo-spring-xml-provider

服务提供者

将dubbo-spring-xml-api 打成jar包dubbo-spring-xml-provider中。

70 2

4.1pom.xml

  1. <?xml version="1.0"?>
  2. <project
  3.     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
  4.     xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  5.     <modelVersion>4.0.0</modelVersion>
  6.     <parent>
  7.         <groupId>org.niugang</groupId>
  8.         <artifactId>dubbo-spring-xml</artifactId>
  9.         <version>0.0.1-SNAPSHOT</version>
  10.     </parent>
  11.     <artifactId>dubbo-spring-xml-provider</artifactId>
  12.     <packaging>jar</packaging>
  13.     <name>dubbo-spring-xml-provider</name>
  14.     <url>http://maven.apache.org</url>
  15.     <dependencies>
  16.         <dependency>
  17.             <groupId>javax</groupId>
  18.             <artifactId>javaee-web-api</artifactId>
  19.             <scope>provided</scope>
  20.         </dependency>
  22.         <!-- Spring MVC -->
  23.         <dependency>
  24.             <groupId>org.springframework</groupId>
  25.             <artifactId>spring-webmvc</artifactId>
  26.         </dependency>
  28.         <!-- 其他web依赖 -->
  29.         <dependency>
  30.             <groupId>javax.servlet</groupId>
  31.             <artifactId>jstl</artifactId>
  32.         </dependency>
  34.         <dependency>
  35.             <groupId>javax.servlet</groupId>
  36.             <artifactId>javax.servlet-api</artifactId>
  37.             <scope>provided</scope>
  38.         </dependency>
  40.         <dependency>
  41.             <groupId>javax.servlet.jsp</groupId>
  42.             <artifactId>jsp-api</artifactId>
  43.             <scope>provided</scope>
  44.         </dependency>
  46.         <!-- Spring and Transactions -->
  47.         <dependency>
  48.             <groupId>org.springframework</groupId>
  49.             <artifactId>spring-tx</artifactId>
  50.         </dependency>
  52.         <!-- 使用SLF4J和LogBack作为日志 -->
  53.         <dependency>
  54.             <groupId>org.slf4j</groupId>
  55.             <artifactId>slf4j-api</artifactId>
  56.         </dependency>
  57.         <dependency>
  58.             <groupId>log4j</groupId>
  59.             <artifactId>log4j</artifactId>
  60.         </dependency>
  61.         <dependency>
  62.             <groupId>org.slf4j</groupId>
  63.             <artifactId>jcl-over-slf4j</artifactId>
  64.         </dependency>
  65.         <dependency>
  66.             <groupId>ch.qos.logback</groupId>
  67.             <artifactId>logback-classic</artifactId>
  68.         </dependency>
  69.         <dependency>
  70.             <groupId>ch.qos.logback</groupId>
  71.             <artifactId>logback-core</artifactId>
  72.         </dependency>
  73.         <dependency>
  74.             <groupId>ch.qos.logback</groupId>
  75.             <artifactId>logback-access</artifactId>
  76.         </dependency>
  78.         <!--对json和xml格式的支持 -->
  79.         <!-- <dependency> <groupId>com.fasterxml.jackson.dataformat</groupId> <artifactId>jackson-dataformat-xml</artifactId> 
  80.             <version>2.5.3</version> </dependency> -->
  81.         <!--配置springmvc信息转化为json所需的json包 -->
  82.         <dependency>
  83.             <groupId>com.fasterxml.jackson.core</groupId>
  84.             <artifactId>jackson-databind</artifactId>
  85.         </dependency>
  86.         <dependency>
  87.             <groupId>com.fasterxml.jackson.core</groupId>
  88.             <artifactId>jackson-databind</artifactId>
  89.         </dependency>
  90.         <dependency>
  91.             <groupId>com.fasterxml.jackson.core</groupId>
  92.             <artifactId>jackson-annotations</artifactId>
  93.         </dependency>
  94.         <dependency>
  95.             <groupId>com.fasterxml.jackson.core</groupId>
  96.             <artifactId>jackson-core</artifactId>
  97.         </dependency>
  99.         <!-- 非必需，可简化IO操作 -->
  100.         <dependency>
  101.             <groupId>commons-io</groupId>
  102.             <artifactId>commons-io</artifactId>
  103.         </dependency>
  105.         <dependency>
  106.             <groupId>org.springframework</groupId>
  107.             <artifactId>spring-test</artifactId>
  108.             <scope>test</scope>
  109.         </dependency>
  110.         <dependency>
  111.             <groupId>org.springframework</groupId>
  112.             <artifactId>spring-jdbc</artifactId>
  113.             <scope>test</scope>
  114.         </dependency>
  116.         <dependency>
  117.             <groupId>org.aspectj</groupId>
  118.             <artifactId>aspectjrt</artifactId>
  119.         </dependency>
  120.         <!--aspectj依赖 -->
  121.         <dependency>
  122.             <groupId>org.aspectj</groupId>
  123.             <artifactId>aspectjtools</artifactId>
  124.         </dependency>
  125.         <dependency>
  126.             <groupId>org.aspectj</groupId>
  127.             <artifactId>aspectjweaver</artifactId>
  128.         </dependency>
  130.         <dependency>
  131.             <groupId>junit</groupId>
  132.             <artifactId>junit</artifactId>
  133.             <scope>test</scope>
  134.         </dependency>
  136.         <!--dubbo -->
  137.         <dependency>
  138.             <groupId>com.alibaba</groupId>
  139.             <artifactId>dubbo</artifactId>
  140.         </dependency>
  141.         <!--redis -->
  142.         <dependency>
  143.             <groupId>redis.clients</groupId>
  144.             <artifactId>jedis</artifactId>
  145.         </dependency>
  147.         <dependency>
  148.             <groupId>org.niugang</groupId>
  149.             <artifactId>dubbo-spring-xml-api</artifactId>
  150.             <version>0.0.1-SNAPSHOT</version>
  151.         </dependency>
  154.     </dependencies>
  156.     <build>
  157.         <plugins>
  158.             <plugin>
  159.                 <groupId>org.apache.maven.plugins</groupId>
  160.                 <artifactId>maven-compiler-plugin</artifactId>
  161.                 <version>2.3.2</version>
  162.                 <configuration>
  163.                     <source>${java.version}</source>
  164.                     <target>${java.version}</target>
  165.                 </configuration>
  166.             </plugin>
  167.             <plugin>
  168.                 <groupId>org.apache.maven.plugins</groupId>
  169.                 <artifactId>maven-war-plugin</artifactId>
  170.                 <version>2.3</version>
  171.                 <configuration>
  172.                     <failOnMissingWebXml>false</failOnMissingWebXml>
  173.                 </configuration>
  174.             </plugin>
  175.         </plugins>
  176.     </build>
  177. </project>

4.2service对外暴露接口实现类

  1. package org.niugang.service;
  3. import java.util.ArrayList;
  4. import java.util.List;
  5. import java.util.Random;
  7. import org.niugang.bean.DefaultBean;
  9. /**
  10.  * 
  11.  * @ClassName: DefaultDemoService
  12.  * @Description:对外暴露接口实现类
  13.  * @author: niugang
  14.  * @date: 2018年8月21日 下午8:18:29
  15.  * @Copyright: 863263957@qq.com. All rights reserved.
  16.  *
  17.  */
  19. public class DefaultServiceImpl implements DefaultApiService {
  20.        //模拟数据
  21.     public static List<DefaultBean> list = new ArrayList<DefaultBean>();
  22.     static {
  24.         DefaultBean defaultBean = new DefaultBean();
  25.         defaultBean.setStr("1");
  26.         defaultBean.setMethodName("defaultMethod");
  27.         defaultBean.setTimestamp(System.currentTimeMillis());
  28.         list.add(defaultBean);
  29.         DefaultBean defaultBean2 = new DefaultBean();
  30.         defaultBean2.setStr("2");
  31.         defaultBean2.setMethodName("defaultMethod2");
  32.         defaultBean2.setTimestamp(System.currentTimeMillis());
  33.         list.add(defaultBean2);
  34.         DefaultBean defaultBean3 = new DefaultBean();
  35.         defaultBean3.setStr("3");
  36.         defaultBean3.setMethodName("defaultMethod3");
  37.         defaultBean3.setTimestamp(System.currentTimeMillis());
  38.         list.add(defaultBean);
  39.         DefaultBean defaultBean4 = new DefaultBean();
  40.         defaultBean4.setStr("4");
  41.         defaultBean4.setMethodName("defaultMethod4");
  42.         defaultBean4.setTimestamp(System.currentTimeMillis());
  43.         list.add(defaultBean4);
  44.         DefaultBean defaultBean5 = new DefaultBean();
  45.         defaultBean5.setStr("5");
  46.         defaultBean5.setMethodName("defaultMethod5");
  47.         defaultBean5.setTimestamp(System.currentTimeMillis());
  48.         list.add(defaultBean5);
  49.     }
  50.      @Override
  51.      public String defaultMethod(String str) {
  52.         Random random = new Random();
  53.         int nextInt = random.nextInt(6);
  54.         String res = null;
  55.         if (nextInt > 0) {
  56.             DefaultBean defaultBean = list.get(nextInt - 1);
  57.             res = defaultBean.getStr() + "#" + defaultBean.getMethodName() + "#" + defaultBean.getTimestamp()
  58.                     + "###^^^^^^^^^^^" + str + "^^^^^^^^^^^^";
  59.         } else {
  60.             DefaultBean defaultBean = list.get(nextInt);
  61.             res = defaultBean.getStr() + "#" + defaultBean.getMethodName() + "#" + defaultBean.getTimestamp()
  62.                     + "###^^^^^^^^^^^" + str + "^^^^^^^^^^^^";
  63.         }
  64.         return res;
  65.     }
  67. }

4.3application.xml配置

  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:p="http://www.springframework.org/schema/p"
  5.     xmlns:context="http://www.springframework.org/schema/context"
  6.     xmlns:mvc="http://www.springframework.org/schema/mvc" 
  7.     xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
  8.     xsi:schemaLocation="
  9.    http://www.springframework.org/schema/beans
  10.    http://www.springframework.org/schema/beans/spring-beans.xsd
  11.    http://www.springframework.org/schema/context
  12.    http://www.springframework.org/schema/context/spring-context.xsd
  13.    http://www.springframework.org/schema/mvc
  14.    http://www.springframework.org/schema/mvc/spring-mvc.xsd">
  16.     <import resource="provider.xml" />
  20.     <!--組件扫描 -->
  21.     <context:component-scan base-package="org.niugang" />
  24.     <!--注解扫描 -->
  25.     <mvc:annotation-driven />
  29. </beans>

4.4provider.xml配置

dubbo配置

  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" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
  4.     xsi:schemaLocation="http://www.springframework.org/schema/beans 
  5.     http://www.springframework.org/schema/beans/spring-beans.xsd 
  6.      http://code.alibabatech.com/schema/dubbo
  7.      http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
  9.     <!-- http://dubbo.apache.org/schema/dubbo/dubbo.xsd 上面配置为这个一直报错，改为 http://code.alibabatech.com/schema/dubbo/dubbo.xsd -->
  11.     <!--用于配置当前应用信息，不管该应用是提供者还是消费者 -->
  12.     <dubbo:application name="hello-world-app" />
  14.     <!-- 用于配置连接注册中心相关信息 -->
  15.     <dubbo:registry address="redis://localhost:6379"
  16.         timeout="30000">
  17.         <!--配置redis连接参数 -->
  18.         <!--具体参数配置见com.alibaba.dubbo.registry.redis.RedisRegistry.class  -->
  19.         <dubbo:parameter key="max.idle" value="10" />
  20.         <dubbo:parameter key="min.idle" value="5" />
  21.         <dubbo:parameter key="max.active" value="20" />
  22.         <dubbo:parameter key="max.total" value="100" />
  23.     </dubbo:registry>
  25.     <!-- 用于配置提供服务的协议信息，协议由提供方指定，消费方被动接受 -->
  26.     <dubbo:protocol name="dubbo" port="20880" accesslog="true" />
  28.     <!-- 实现类 -->
  29.     <bean id="defaultService" class="org.niugang.service.DefaultServiceImpl" />
  30.     <!--用于暴露一个服务，定义服务的元信息，一个服务可以用多个协议暴露，一个服务也可以注册到多个注册中心 -->
  31.     <dubbo:service interface="org.niugang.service.DefaultApiService"
  32.         ref="defaultService" />
  36. </beans>

redis注册源码见com.alibaba.dubbo.registry.redis.RedisRegistry.class

4.5web.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <web-app id="WebApp_ID" version="2.4"
  3.     xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.     xsi:schemaLocation="http://java.sun.com/xml/ns/j2eehttp://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  5.     <!-- 上下文配置文件位置 -->
  6.     <context-param>
  7.         <param-name>contextConfigLocation</param-name>
  8.         <!-- spring 配置文件所在位置，启动 spring 时会去该路径下查找该配置文件 -->
  9.         <param-value>classpath:applicationContext.xml</param-value>
  10.     </context-param>
  11.     <!-- spring 上下文监听器，初始化启动容器时启动 spring -->
  12.     <listener>
  13.         <listener-class>org.springframework.web.context.ContextLoaderListener
  14.         </listener-class>
  15.     </listener>
  16.     <!-- spring 核心转发器，拦截指定目录下的请求，分配到配置的拦截路径下处理 -->
  17.     <servlet>
  18.         <servlet-name>dispatcher</servlet-name>
  19.         <servlet-class>org.springframework.web.servlet.DispatcherServlet
  20.         </servlet-class>
  21.         <init-param>
  22.             <param-name>contextConfigLocation</param-name>
  23.             <param-value>classpath:applicationContext.xml</param-value>
  24.         </init-param>
  25.         <load-on-startup>1</load-on-startup>
  26.     </servlet>
  27.     <servlet-mapping>
  28.         <servlet-name>dispatcher</servlet-name>
  29.         <url-pattern>/</url-pattern>
  30.     </servlet-mapping>
  31.     <!-- spring 编码过滤器 -->
  32.     <filter>
  33.         <filter-name>characterEncodingFilter</filter-name>
  34.         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  35.         <init-param>
  36.             <param-name>encoding</param-name>
  37.             <param-value>UTF-8</param-value>
  38.         </init-param>
  39.         <init-param>
  40.             <param-name>forceEncoding</param-name>
  41.             <param-value>true</param-value>
  42.         </init-param>
  43.     </filter>
  44.     <!-- 编码过滤器过滤的路径 -->
  45.     <filter-mapping>
  46.         <filter-name>characterEncodingFilter</filter-name>
  47.         <url-pattern>/*</url-pattern>
  48.     </filter-mapping>
  49. </web-app>

5.dubbo-spring-xml-customer

服务消费者

需要引入dubbo-spring-xml-api.jar文件

70 3

5.1pom.xml

  1. <?xml version="1.0"?>
  2. <project
  3.     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
  4.     xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  5.     <modelVersion>4.0.0</modelVersion>
  6.     <parent>
  7.         <groupId>org.niugang</groupId>
  8.         <artifactId>dubbo-spring-xml</artifactId>
  9.         <version>0.0.1-SNAPSHOT</version>
  10.     </parent>
  11.     <artifactId>dubbo-spring-xml-customer</artifactId>
  12.     <packaging>jar</packaging>
  13.     <name>dubbo-spring-xml-customer</name>
  14.     <url>http://maven.apache.org</url>
  15.     <dependencies>
  16.         <dependency>
  17.             <groupId>junit</groupId>
  18.             <artifactId>junit</artifactId>
  19.             <scope>test</scope>
  20.         </dependency>
  21.         <dependency>
  22.             <groupId>javax</groupId>
  23.             <artifactId>javaee-web-api</artifactId>
  24.             <scope>provided</scope>
  25.         </dependency>
  27.         <!-- Spring MVC -->
  28.         <dependency>
  29.             <groupId>org.springframework</groupId>
  30.             <artifactId>spring-webmvc</artifactId>
  31.         </dependency>
  33.         <!-- 其他web依赖 -->
  34.         <dependency>
  35.             <groupId>javax.servlet</groupId>
  36.             <artifactId>jstl</artifactId>
  37.         </dependency>
  39.         <dependency>
  40.             <groupId>javax.servlet</groupId>
  41.             <artifactId>javax.servlet-api</artifactId>
  42.             <scope>provided</scope>
  43.         </dependency>
  45.         <dependency>
  46.             <groupId>javax.servlet.jsp</groupId>
  47.             <artifactId>jsp-api</artifactId>
  48.             <scope>provided</scope>
  49.         </dependency>
  51.         <!-- Spring and Transactions -->
  52.         <dependency>
  53.             <groupId>org.springframework</groupId>
  54.             <artifactId>spring-tx</artifactId>
  55.         </dependency>
  57.         <!-- 使用SLF4J和LogBack作为日志 -->
  58.         <dependency>
  59.             <groupId>org.slf4j</groupId>
  60.             <artifactId>slf4j-api</artifactId>
  61.         </dependency>
  62.         <dependency>
  63.             <groupId>log4j</groupId>
  64.             <artifactId>log4j</artifactId>
  65.         </dependency>
  66.         <dependency>
  67.             <groupId>org.slf4j</groupId>
  68.             <artifactId>jcl-over-slf4j</artifactId>
  69.         </dependency>
  70.         <dependency>
  71.             <groupId>ch.qos.logback</groupId>
  72.             <artifactId>logback-classic</artifactId>
  73.         </dependency>
  74.         <dependency>
  75.             <groupId>ch.qos.logback</groupId>
  76.             <artifactId>logback-core</artifactId>
  77.         </dependency>
  78.         <dependency>
  79.             <groupId>ch.qos.logback</groupId>
  80.             <artifactId>logback-access</artifactId>
  81.         </dependency>
  83.         <!--对json和xml格式的支持 -->
  84.         <!-- <dependency> <groupId>com.fasterxml.jackson.dataformat</groupId> <artifactId>jackson-dataformat-xml</artifactId> 
  85.             <version>2.5.3</version> </dependency> -->
  86.         <!--配置springmvc信息转化为json所需的json包 -->
  87.         <dependency>
  88.             <groupId>com.fasterxml.jackson.core</groupId>
  89.             <artifactId>jackson-databind</artifactId>
  90.         </dependency>
  91.         <dependency>
  92.             <groupId>com.fasterxml.jackson.core</groupId>
  93.             <artifactId>jackson-databind</artifactId>
  94.         </dependency>
  95.         <dependency>
  96.             <groupId>com.fasterxml.jackson.core</groupId>
  97.             <artifactId>jackson-annotations</artifactId>
  98.         </dependency>
  99.         <dependency>
  100.             <groupId>com.fasterxml.jackson.core</groupId>
  101.             <artifactId>jackson-core</artifactId>
  102.         </dependency>
  104.         <!-- 非必需，可简化IO操作 -->
  105.         <dependency>
  106.             <groupId>commons-io</groupId>
  107.             <artifactId>commons-io</artifactId>
  108.         </dependency>
  110.         <dependency>
  111.             <groupId>org.springframework</groupId>
  112.             <artifactId>spring-test</artifactId>
  113.             <scope>test</scope>
  114.         </dependency>
  115.         <dependency>
  116.             <groupId>org.springframework</groupId>
  117.             <artifactId>spring-jdbc</artifactId>
  118.             <scope>test</scope>
  119.         </dependency>
  121.         <dependency>
  122.             <groupId>org.aspectj</groupId>
  123.             <artifactId>aspectjrt</artifactId>
  124.         </dependency>
  125.         <!--aspectj依赖 -->
  126.         <dependency>
  127.             <groupId>org.aspectj</groupId>
  128.             <artifactId>aspectjtools</artifactId>
  129.         </dependency>
  130.         <dependency>
  131.             <groupId>org.aspectj</groupId>
  132.             <artifactId>aspectjweaver</artifactId>
  133.         </dependency>
  134.         <!--dubbo -->
  135.         <dependency>
  136.             <groupId>com.alibaba</groupId>
  137.             <artifactId>dubbo</artifactId>
  138.         </dependency>
  139.         <!--redis -->
  140.         <dependency>
  141.             <groupId>redis.clients</groupId>
  142.             <artifactId>jedis</artifactId>
  143.         </dependency>
  144.         <!--引入服务提供者 rpc接口-->
  145.         <dependency>
  146.             <groupId>org.niugang</groupId>
  147.             <artifactId>dubbo-spring-xml-api</artifactId>
  148.             <version>0.0.1-SNAPSHOT</version>
  149.         </dependency>
  151.     </dependencies>
  153.     <build>
  154.         <plugins>
  155.             <plugin>
  156.                 <groupId>org.apache.maven.plugins</groupId>
  157.                 <artifactId>maven-compiler-plugin</artifactId>
  158.                 <version>2.3.2</version>
  159.                 <configuration>
  160.                     <source>${java.version}</source>
  161.                     <target>${java.version}</target>
  162.                 </configuration>
  163.             </plugin>
  164.             <plugin>
  165.                 <groupId>org.apache.maven.plugins</groupId>
  166.                 <artifactId>maven-war-plugin</artifactId>
  167.                 <version>2.3</version>
  168.                 <configuration>
  169.                     <failOnMissingWebXml>false</failOnMissingWebXml>
  170.                 </configuration>
  171.             </plugin>
  172.         </plugins>
  175.         <finalName>dubbo-spring-xml-customer</finalName>
  176.     </build>
  177. </project>

5.1消费服务

  1. package org.niugang.controller;
  3. import javax.annotation.Resource;
  5. import org.niugang.service.DefaultApiService;
  6. import org.springframework.web.bind.annotation.RequestMapping;
  7. import org.springframework.web.bind.annotation.RequestParam;
  8. import org.springframework.web.bind.annotation.RestController;
  10. /**
  11.  * 
  12.  * @ClassName: DemoConsumerController
  13.  * @Description:web调用服务提供者对外暴露的rpc接口
  14.  * @author: niugang
  15.  * @date: 2018年8月18日 上午9:41:30
  16.  * @Copyright: 863263957@qq.com. All rights reserved.
  17.  *
  18.  */
  19. @RestController
  20. public class DemoConsumerController {
  22.     /**
  23.      * 引入服务提供者
  24.      */
  25.     @Resource(name = "defaultService")
  26.     private DefaultApiService defaultService;
  28.     @RequestMapping("/sayHello")
  29.     public String sayHello(@RequestParam String name) {
  30.         return defaultService.defaultMethod(name);
  31.     }
  33. }

5.3applicationContentxt.xml

  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" xmlns:p="http://www.springframework.org/schema/p"
  4.     xmlns:context="http://www.springframework.org/schema/context"
  5.     xmlns:mvc="http://www.springframework.org/schema/mvc"
  6.         xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
  7.     xsi:schemaLocation="
  8.    http://www.springframework.org/schema/beans
  9.    http://www.springframework.org/schema/beans/spring-beans.xsd
  10.    http://www.springframework.org/schema/context
  11.    http://www.springframework.org/schema/context/spring-context.xsd
  12.    http://www.springframework.org/schema/mvc
  13.    http://www.springframework.org/schema/mvc/spring-mvc.xsd">
  15.     <import resource="classpath:consumer.xml" />
  17.     <!--組件扫描 -->
  18.     <context:component-scan base-package="org.niugang" />
  20.     <!--注解扫描 -->
  21.     <mvc:annotation-driven />
  24. </beans>

5.4customer.xml

  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.     <!-- 消费方应用名，用于计算依赖关系，不是匹配条件，不要与提供方一样 -->
  11.     <dubbo:application name="hello-world-customer" />
  13.     <dubbo:registry address="redis://localhost:6379"
  14.         timeout="30000" check="false" />
  16.     <!-- 生成远程服务代理，可以和本地bean一样使用demoService -->
  17.     <dubbo:reference id="defaultService" interface="org.niugang.service.DefaultApiService" />
  19. </beans>

5.5web.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <web-app id="WebApp_ID" version="2.4"
  3.     xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.     xsi:schemaLocation="http://java.sun.com/xml/ns/j2eehttp://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  5.     <!-- 上下文配置文件位置 -->
  6.     <context-param>
  7.         <param-name>contextConfigLocation</param-name>
  8.         <!-- spring 配置文件所在位置，启动 spring 时会去该路径下查找该配置文件 -->
  9.         <param-value>classpath*:applicationContext.xml</param-value>
  10.     </context-param>
  11.     <!-- spring 上下文监听器，初始化启动容器时启动 spring -->
  12.     <listener>
  13.         <listener-class>org.springframework.web.context.ContextLoaderListener
  14.         </listener-class>
  15.     </listener>
  16.     <!-- spring 核心转发器，拦截指定目录下的请求，分配到配置的拦截路径下处理 -->
  17.     <servlet>
  18.         <servlet-name>dispatcher</servlet-name>
  19.         <servlet-class>org.springframework.web.servlet.DispatcherServlet
  20.         </servlet-class>
  21.         <init-param>
  22.             <param-name>contextConfigLocation</param-name>
  23.             <param-value>classpath*：applicationContext.xml</param-value>
  24.         </init-param>
  25.         <load-on-startup>1</load-on-startup>
  26.     </servlet>
  27.     <servlet-mapping>
  28.         <servlet-name>dispatcher</servlet-name>
  29.         <url-pattern>/</url-pattern>
  30.     </servlet-mapping>
  31.     <!-- spring 编码过滤器 -->
  32.     <filter>
  33.         <filter-name>characterEncodingFilter</filter-name>
  34.         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  35.         <init-param>
  36.             <param-name>encoding</param-name>
  37.             <param-value>UTF-8</param-value>
  38.         </init-param>
  39.         <init-param>
  40.             <param-name>forceEncoding</param-name>
  41.             <param-value>true</param-value>
  42.         </init-param>
  43.     </filter>
  44.     <!-- 编码过滤器过滤的路径 -->
  45.     <filter-mapping>
  46.         <filter-name>characterEncodingFilter</filter-name>
  47.         <url-pattern>/*</url-pattern>
  48.     </filter-mapping>
  49. </web-app>

以上配置完成。将服务提供者，服务消费分别部署到不同的tomcat中。

启动服务提供者，启动服务消费者。

70 4

70 5

源码地址：

https://gitee.com/niugangxy/dubbo

微信公众号

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