服務端：dubbo-demo-server-api ：服務接口定義工程dubbo-demo-server-biz ：服務接口實現工程web-dubbo-server：服務接口發布工程客戶端：dubbo-demo-client-biz ：客戶端調用接口業務處理工程web-dubbo-client ：客戶端web工程首先先在api工程（dubbo-demo-server-api ）定義服務接口。package org.zhq.dubbo.demo.server.api;/** * 服務接口 * @author zhq * */public interface IDubboDemoServerService { public static final String BEAN_ID="dubboDemoServerServiceImpl"; /** * say hello + msg * @param msg * @return */ String hello(String msg);}然后在api的實現工程（dubbo-demo-server-biz ）進行接口實現package org.zhq.dubbo.server.dubbo_demo_server_biz;import org.sPRingframework.stereotype.Service;import org.zhq.dubbo.demo.server.api.IDubboDemoServerService;/** * 接口服務實現類 * @author zhq * */@Service(IDubboDemoServerService.BEAN_ID)public class DubboDemoServerServiceImpl implements IDubboDemoServerService{ @Override public String hello(String msg) { String outMsg="Hello "+msg; System.out.println(outMsg); return outMsg; }}再進行dubbo和zookeeper配置，引入dubbo和zookeeper的mavn包<!-- 引入dubbo和zookeepr --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.3</version> </dependency> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.4.6</version> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency>接口發布配置<?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:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd" default-lazy-init="false" > <context:component-scan base-package="org.zhq"></context:component-scan> <!-- 提供方應用名稱信息，這個相當于起一個名字，我們dubbo管理頁面比較清晰是哪個應用暴露出來的 --> <dubbo:application name="dubbo_provider"></dubbo:application> <!-- 使用zookeeper注冊中心暴露服務地址 --> <dubbo:registry address="zookeeper://127.0.0.1:2181" check="false" subscribe="false" register=""></dubbo:registry> <!-- 要暴露的服務接口 --> <dubbo:service interface="org.zhq.dubbo.demo.server.api.IDubboDemoServerService" ref="dubboDemoServerServiceImpl" /></beans>配置說明dubbo:registry 標簽一些屬性的說明：1）register 向該注冊中心注冊服務，如果設為false，將只訂閱，不注冊。 2）check 該注冊中心不存在時，是否報錯。 3）subscribe 是否向此注冊中心訂閱服務，如果設為false，將只注冊，不訂閱。 4）timeout 注冊中心請求超時時間(毫秒)。 5）address 可以Zookeeper集群配置，地址可以多個以逗號隔開等。就是我們上一章配置的zookeeper服務地址dubbo:service標簽的一些屬性說明： 1）interface 服務api接口的路徑，包括接口類名稱。 2）ref 引用對應的實現類的Bean的ID 3）registry 向指定注冊中心注冊，在多個注冊中心時使用，值為<dubbo:registry>的id屬性，多個注冊中心ID用逗號分隔，如果不想將該服務注冊到任何registry，可將值設為N/A 4）register 默認true ，該協議的服務是否注冊到注冊中心。詳細說明見官網：http://dubbo.io/User+Guide-zh.htm#UserGuide-zh-%E5%90%AF%E5%8A%A8%E6%97%B6%E6%A3%80%E6%9F%A5代碼位置示圖：
在web-dubbo-server應用引用實現工程，這樣服務應用基本就已經開發完畢。
客戶端業務類調用接口服務實現在工程（dubbo-demo-client-biz ）引入dubbo和zookeeper和api工程
配置消費<?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:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd" default-lazy-init="false" > <context:component-scan base-package="org.zhq"></context:component-scan> <!-- 提供方應用名稱信息，這個相當于起一個名字，我們dubbo管理頁面比較清晰是哪個應用暴露出來的 --> <dubbo:application name="dubbo_provider"></dubbo:application> <!-- 使用zookeeper注冊中心暴露服務地址 --> <dubbo:registry address="zookeeper://127.0.0.1:2181" check="false" subscribe="false" register=""></dubbo:registry> <!-- 要暴露的服務接口 --> <dubbo:service interface="org.zhq.dubbo.demo.server.api.IDubboDemoServerService" ref="dubboDemoServerServiceImpl" /></beans>調用類實現package org.zhq.dubbo.server.dubbo_demo_server_biz;import org.springframework.stereotype.Service;import org.zhq.dubbo.demo.server.api.IDubboDemoServerService;/** * 接口服務實現類 * @author zhq * */@Service(IDubboDemoServerService.BEAN_ID)public class DubboDemoServerServiceImpl implements IDubboDemoServerService{ @Override public String hello(String msg) { String outMsg="Hello "+msg; System.out.println(outMsg); return outMsg; }}we-dubbo-client引入業務實現調用工程
spring-mvc的controller實現調用package org.zhq.dubbo.common.portal.controller;import java.util.HashMap;import java.util.Map;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import org.zhq.dubbo.demo.client.biz.DubboDemoServerClientBiz;/** * 測試控制器類 * @author zhq * */@Controller@RequestMapping(value = "/dubboDemoClientController")public class DubboDemoClientController {/* @Resource(name=IDubboDemoServerService.BEAN_ID) private IDubboDemoServerService dubboDemoServerService;*/ //測試通過業務類來調用，也可以直接用上面的api接口直接調用 @Resource(name=DubboDemoServerClientBiz.BEAN_ID) private DubboDemoServerClientBiz dubboDemoServerClientBiz; /** * @param request * @param response * @return */ @RequestMapping(value = "/helloDemo.do") public @ResponseBody Map<String,Object> hello(HttpServletRequest request, HttpServletResponse response){ Map<String,Object> resultData = new HashMap<String,Object>();// String msg=dubboDemoServerService.hello("world"); String msg=dubboDemoServerClientBiz.sayHelloMsg("world"); resultData.put("msg", msg); return resultData; }}啟動web-dubbo-server和web-dubbo-client工程訪問http://localhost:8099/dubboClient/dubboDemoClientController/helloDemo.do可以看到調用成功，服務訪問Hello world字符串
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完整工程代碼下載：鏈接：http://pan.baidu.com/s/1nuF30DV 密碼：pcam新聞熱點
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