Dubbo簡介與基本概念:html
https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/103555224java
Dubbo環境搭建-ZooKeeper註冊中心:spring
https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/103555470apache
Dubbo環境搭建-管理控制檯dubbo-admin實現服務監控:編程
https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/103624846app
在上面搭建好ZooKeeper註冊中心和管理控制檯dubbo-admin搭建後,實現HelloWorld程序完成基本入門。maven
注:ide
博客:
https://blog.csdn.net/badao_liumang_qizhi
關注公衆號
霸道的程序猿
獲取編程相關電子書、教程推送與免費下載。微服務
爲了解決依賴問題與實現微服務的概念,下面須要新建三個Maven Project測試
gmall-interface 用來做爲公共依賴,存放公共接口和公共Bean等。
uesr-service-provider 搭建服務提供者
order-service-consumer 搭建服務消費者
打開Eclipse-新建maven Project
輸入相關座標信息,後面兩個項目過程也是如此。
而後在項目下新建包com.badao.gmall
而後再新建bean包和service包
bean中新建UserAddress實體類
package com.badao.gmall.bean; import java.io.Serializable; /** * 用戶地址 * @author badao * */ public class UserAddress implements Serializable { private Integer id; private String userAddress; //用戶地址 private String userId; //用戶id private String consignee; //收貨人 private String phoneNum; //電話號碼 private String isDefault; //是否爲默認地址 Y-是 N-否 public UserAddress() { super(); // TODO Auto-generated constructor stub } public UserAddress(Integer id, String userAddress, String userId, String consignee, String phoneNum, String isDefault) { super(); this.id = id; this.userAddress = userAddress; this.userId = userId; this.consignee = consignee; this.phoneNum = phoneNum; this.isDefault = isDefault; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUserAddress() { return userAddress; } public void setUserAddress(String userAddress) { this.userAddress = userAddress; } public String getUserId() { return userId; } public void setUserId(String userId) { this.userId = userId; } public String getConsignee() { return consignee; } public void setConsignee(String consignee) { this.consignee = consignee; } public String getPhoneNum() { return phoneNum; } public void setPhoneNum(String phoneNum) { this.phoneNum = phoneNum; } public String getIsDefault() { return isDefault; } public void setIsDefault(String isDefault) { this.isDefault = isDefault; } }
而後在service包下新建兩個公共接口類
OrderService.java
package com.badao.gmall.service; import java.util.List; import com.badao.gmall.bean.UserAddress; public interface OrderService { /** * 初始化訂單 * @param userId */ public List<UserAddress> initOrder(String userId); } 該接口聲明一個初始化訂單的方法。 UserService.java package com.badao.gmall.service; import java.util.List; import com.badao.gmall.bean.UserAddress; /** * 用戶服務 * @author badao * */ public interface UserService { /** * 按照用戶id返回全部的收貨地址 * @param userId * @return */ public List<UserAddress> getUserAddressList(String userId); }
該接口提供獲取全部收穫地址的方法的聲明
參照上面流程,新建user-service-provider
而後在pom.xml中引入上面公共接口的依賴
<dependency> <groupId>com.badao.gmall</groupId> <artifactId>gmall-interface</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency>
而後還要引入dubbo以及zookeeper的依賴
<!-- 引入dubbo --> <!-- https://mvnrepository.com/artifact/com.alibaba/dubbo --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.6.2</version> </dependency> <!-- 註冊中心使用的是zookeeper,引入操做zookeeper的客戶端端 --> <dependency> <groupId>org.apache.curator</groupId> <artifactId>curator-framework</artifactId> <version>2.12.0</version> </dependency>
完整pom.xml代碼
<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"> <modelVersion>4.0.0</modelVersion> <groupId>com.badao.gmall</groupId> <artifactId>user-service-provider</artifactId> <version>0.0.1-SNAPSHOT</version> <dependencies> <dependency> <groupId>com.badao.gmall</groupId> <artifactId>gmall-interface</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <!-- 引入dubbo --> <!-- https://mvnrepository.com/artifact/com.alibaba/dubbo --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.6.2</version> </dependency> <!-- 註冊中心使用的是zookeeper,引入操做zookeeper的客戶端端 --> <dependency> <groupId>org.apache.curator</groupId> <artifactId>curator-framework</artifactId> <version>2.12.0</version> </dependency> </dependencies> </project>
在項目下新建service.impl包,包下新建實現類
package com.badao.gmall.service.impl; import java.util.Arrays; import java.util.List; import com.badao.gmall.bean.UserAddress; import com.badao.gmall.service.UserService; public class UserServiceImpl implements UserService { public List<UserAddress> getUserAddressList(String userId) { // TODO Auto-generated method stub UserAddress address1 = new UserAddress(1, "霸道流氓氣質", "1", "李老師", "123456789", "Y"); UserAddress address2 = new UserAddress(2, "公衆號:霸道的程序猿)", "1", "王老師", "987654321", "N"); return Arrays.asList(address1,address2); } }
而後按照其官方指示,新建配置文件並配置服務提供者
在src/main/resource下新建配置文件provider.xml
按照其官方要求,編寫配置文件以下
<?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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"> <!-- 1、指定當前服務/應用的名字(一樣的服務名字相同,不要和別的服務同名) --> <dubbo:application name="user-service-provider"></dubbo:application> <!-- 2、指定註冊中心的位置 兩種方式 --> <!-- <dubbo:registry address="zookeeper://127.0.0.1:2181"></dubbo:registry> --> <dubbo:registry protocol="zookeeper" address="127.0.0.1:2181"></dubbo:registry> <!-- 3、指定通訊規則(通訊協議?通訊端口) --> <dubbo:protocol name="dubbo" port="20882"></dubbo:protocol> <!-- 4、暴露服務 ref:指向服務的真正的實現對象 --> <dubbo:service interface="com.badao.gmall.service.UserService" ref="userServiceImpl" timeout="1000" version="1.0.0"> <dubbo:method name="getUserAddressList" timeout="1000"></dubbo:method> </dubbo:service> <!--統一設置服務提供方的規則 --> <dubbo:provider timeout="1000"></dubbo:provider> <bean id="userServiceImpl" class="com.badao.gmall.service.impl.UserServiceImpl"></bean> </beans>
而後在com.badao.gmall包下新建MainApplication.java
讀取配置文件並暴露服務。
package com.badao.gmall; import java.io.IOException; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class MainApplication { public static void main(String[] args) throws IOException { ClassPathXmlApplicationContext ioc = new ClassPathXmlApplicationContext("provider.xml"); ioc.start(); System.in.read(); } }
參照上面流程新建order-service-consumer服務消費者程序
在pom.xml中添加公共接口依賴以及dubbo和zookeeper相關依賴
<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"> <modelVersion>4.0.0</modelVersion> <groupId>com.badao.gmall</groupId> <artifactId>user-service-provider</artifactId> <version>0.0.1-SNAPSHOT</version> <dependencies> <dependency> <groupId>com.badao.gmall</groupId> <artifactId>gmall-interface</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <!-- 引入dubbo --> <!-- https://mvnrepository.com/artifact/com.alibaba/dubbo --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.6.2</version> </dependency> <!-- 註冊中心使用的是zookeeper,引入操做zookeeper的客戶端端 --> <dependency> <groupId>org.apache.curator</groupId> <artifactId>curator-framework</artifactId> <version>2.12.0</version> </dependency> </dependencies> </project>
而後新建接口實現類OrderServiceImpl
package com.badao.gmall.service.impl; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.badao.gmall.bean.UserAddress; import com.badao.gmall.service.OrderService; import com.badao.gmall.service.UserService; /** * 一、將服務提供者註冊到註冊中心(暴露服務) * 1)、導入dubbo依賴(2.6.2)\操做zookeeper的客戶端(curator) * 2)、配置服務提供者 * * 二、讓服務消費者去註冊中心訂閱服務提供者的服務地址 * @author badao * */ @Service public class OrderServiceImpl implements OrderService { @Autowired UserService userService; public List<UserAddress> initOrder(String userId) { // TODO Auto-generated method stub System.out.println("用戶id:"+userId); //一、查詢用戶的收貨地址 List<UserAddress> addressList = userService.getUserAddressList(userId); for (UserAddress userAddress : addressList) { System.out.println(userAddress.getUserAddress()); } return addressList; } }
按照官方指示,一樣新建服務消費者配置文件consumer.xml
<?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://dubbo.apache.org/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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"> <context:component-scan base-package="com.badao.gmall.service.impl"></context:component-scan> <dubbo:application name="order-service-consumer"></dubbo:application> <dubbo:registry address="zookeeper://127.0.0.1:2181"></dubbo:registry> <!--聲明須要調用的遠程服務的接口;生成遠程服務代理 --> <!-- 1)、精確優先 (方法級優先,接口級次之,全局配置再次之) 2)、消費者設置優先(若是級別同樣,則消費方優先,提供方次之) --> <dubbo:reference interface="com.badao.gmall.service.UserService" id="userService" timeout="5000" retries="3" version="*"> </dubbo:reference> </beans>
而後新建MainApplication,加載Spring配置,並調用遠程服務
package com.badao.gmall; import java.io.IOException; import org.springframework.context.support.ClassPathXmlApplicationContext; import com.badao.gmall.service.OrderService; public class MainApplication { @SuppressWarnings("resource") public static void main(String[] args) throws IOException { ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("consumer.xml"); OrderService orderService = applicationContext.getBean(OrderService.class); orderService.initOrder("1"); System.out.println("調用完成...."); System.in.read(); } }
參照官網快速搭建入門程序的指導:
http://dubbo.apache.org/zh-cn/docs/user/quick-start.html
搭建好服務提供者和服務消費者以後,參照上面博客搭建好zookeeper服務註冊中心後,啓動ZooKeeper服務端。
而後再參照博客搭建dubbo-admin管理控制檯程序。
啓動服務提供者的MainApplication使服務暴露。
此時刷新管理控制檯,可見此時服務提供者已經暴露。
而後運行服務消費者的MainApplication,遠程調用成功。
此時刷新管理控制檯
服務提供者與服務消費者各一。
關注公衆號:
霸道的程序猿
回覆:
Dubbo入門代碼