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一、使用IDEA建立Maven工程
![](https://img.laitimes.com/img/__Qf2AjLwojIjJCLyojI0JCLiAzNvwVZ2x2bzNXak9CX90TQNNkRrFlQKBTSvwFbslmZvwFMwQzLcVmepNHdu9mZvwFVywUNMZTY18CX052bm9CX9kERNBTQ61EMJRVT3V1MMBjVtJWd0ckW65UbM5WOHJWa5kHT20ESjBjUIF2LcRHelR3LcJzLctmch1mclRXY39TMygjNwkDN0EDNxkDM4EDMy8CX0Vmbu4GZzNmLn9Gbi1yZtl2Lc9CX6MHc0RHaiojIsJye.jpg)
建立好工程之後,可以把src目錄删除。此工程将作為聚合工程。
二、建立服務提供者子產品dubbo-service
建立之後,首先在pom.xml檔案中修改其打包方式為war
接着完善目錄結構,添加web.xml檔案,如下:
在web.xml中配置sping核心配置檔案,及監聽器,加載spring容器
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/spring/applicationContext*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
然後在resources目錄下添加spring核心配置檔案
<?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<dubbo:application name="service"/>
<dubbo:registry address="zookeeper://192.168.244.128:2181"/>
<dubbo:annotation package="com.xiao.service.impl" />
</beans>
該檔案要配置服務名、注冊中心的位址以及服務所在的包。(注冊中心使用zookeeper,其安裝過程我在另一篇部落格中記錄過,在此不再贅述,位址:https://blog.csdn.net/u012430402/article/details/82694473)
最後還需要在pom.xml中添加相關依賴,如下
<properties>
<spring.version>4.2.4.RELEASE</spring.version>
</properties>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</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-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- dubbo相關 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.12</version>
</dependency>
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<!-- 指定端口 -->
<port>8080</port>
<!-- 請求路徑 -->
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
到此我們服務的提供方的工程已經建立好了,接下來去建立提供的服務的接口及其實作類,如下:
package com.xiao.service;
/**
* @Description 服務提供方 接口
* @Auther: 笑笑
* @Date: 15:18 2018/9/14
*/
public interface DemoService {
public String hello();
}
package com.xiao.service.impl;
import com.alibaba.dubbo.config.annotation.Service;
import com.xiao.service.DemoService;
/**
* @Description 服務提供方接口 實作類
* @Auther: 笑笑
* @Date: 15:19 2018/9/14
*/
@Service
public class DemoServiceImpl implements DemoService {
@Override
public String hello() {
return "Hello Dubbo!";
}
}
在這裡要注意一下,@Service注解一定要使用dubbo的注解。
三、建立服務消費者dubbo-controller子產品
建立工程的具體過程與上面的一樣,在此不再重複書寫。
最終目錄結構如下
在這裡要注意一下,需要把提供者的服務接口拷貝過來!(隻需要接口就可以了!)還有pom.xml中配置的端口号要區分一下,我這裡改為了8081,其餘的依賴相同。
web.xml如下
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<!-- 解決post亂碼 -->
<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>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定加載的配置檔案 ,通過參數contextConfigLocation加載-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/spring/springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
</web-app>
springmvc.xml如下
<?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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<!-- 處理json亂碼 -->
<mvc:annotation-driven >
<mvc:message-converters register-defaults="false">
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<constructor-arg value="UTF-8" />
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<!-- 引用dubbo 服務 -->
<dubbo:application name="controller" />
<dubbo:registry address="zookeeper://192.168.244.128:2181"/>
<dubbo:annotation package="com.xiao.controller" />
</beans>
DemoController如下
package com.xiao.controller;
import com.alibaba.dubbo.config.annotation.Reference;
import com.xiao.service.DemoService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
/**
* @Description 服務消費方
* @Auther: 笑笑
* @Date: 15:35 2018/9/14
*/
@Controller
public class DemoController {
@Reference
private DemoService service;
@RequestMapping(value = "/dubbo/demo")
@ResponseBody
public String hello(){
return service.hello();
}
}
四、啟動工程,測試
我們以tomcat插件的方式啟動工程(這個的配置自行百度吧。。我懶了)
通路位址:http://localhost:8081/dubbo/demo.action