dubbo简介与基本概念:
https://blog.csdn.net/badao_liumang_qizhi/article/details/103555224
dubbo环境搭建-zookeeper注册中心:
https://blog.csdn.net/badao_liumang_qizhi/article/details/103555470
dubbo环境搭建-管理控制台dubbo-admin实现服务监控:
https://blog.csdn.net/badao_liumang_qizhi/article/details/103624846
在上面搭建好zookeeper注册中心和管理控制台dubbo-admin搭建后,实现helloworld程序完成基本入门。
注:
博客:
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为了解决依赖问题与实现微服务的概念,下面需要新建三个maven project
gmall-interface 用来作为公共依赖,存放公共接口和公共bean等。
uesr-service-provider 搭建服务提供者
order-service-consumer 搭建服务消费者
打开eclipse-新建maven project
输入相关坐标信息,后面两个项目过程也是如此。
然后在项目下新建包com.badao.gmall
然后再新建bean包和service包
bean中新建useraddress实体类
package com.badao.gmall.bean; import java.io.serializable; /** * 用户地址 * @author badao * */ public class useraddress implements serializable { private integer id; private string useraddress; //用户地址 private string userid; //用户id private string consignee; //收货人 private string phonenum; //电话号码 private string isdefault; //是否为默认地址 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; } }
然后在service包下新建两个公共接口类
orderservice.java
package com.badao.gmall.service; import java.util.list; import com.badao.gmall.bean.useraddress; public interface orderservice { /** * 初始化订单 * @param userid */ public list<useraddress> initorder(string userid); } 该接口声明一个初始化订单的方法。 userservice.java package com.badao.gmall.service; import java.util.list; import com.badao.gmall.bean.useraddress; /** * 用户服务 * @author badao * */ public interface userservice { /** * 按照用户id返回所有的收货地址 * @param userid * @return */ public list<useraddress> getuseraddresslist(string userid); }
该接口提供获取所有收获地址的方法的声明
参照上面流程,新建user-service-provider
然后在pom.xml中引入上面公共接口的依赖
<dependency> <groupid>com.badao.gmall</groupid> <artifactid>gmall-interface</artifactid> <version>0.0.1-snapshot</version> </dependency>
然后还要引入dubbo以及zookeeper的依赖
<!-- 引入dubbo --> <!-- https://mvnrepository.com/artifact/com.alibaba/dubbo --> <dependency> <groupid>com.alibaba</groupid> <artifactid>dubbo</artifactid> <version>2.6.2</version> </dependency> <!-- 注册中心使用的是zookeeper,引入操作zookeeper的客户端端 --> <dependency> <groupid>org.apache.curator</groupid> <artifactid>curator-framework</artifactid> <version>2.12.0</version> </dependency>
完整pom.xml代码
<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> <!-- 注册中心使用的是zookeeper,引入操作zookeeper的客户端端 --> <dependency> <groupid>org.apache.curator</groupid> <artifactid>curator-framework</artifactid> <version>2.12.0</version> </dependency> </dependencies> </project>
在项目下新建service.impl包,包下新建实现类
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, "霸道流氓气质", "1", "李老师", "123456789", "y"); useraddress address2 = new useraddress(2, "公众号:霸道的程序猿)", "1", "王老师", "987654321", "n"); return arrays.aslist(address1,address2); } }
然后按照其官方指示,新建配置文件并配置服务提供者
在src/main/resource下新建配置文件provider.xml
按照其官方要求,编写配置文件如下
<?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" 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、指定当前服务/应用的名字(同样的服务名字相同,不要和别的服务同名) --> <dubbo:application name="user-service-provider"></dubbo:application> <!-- 2、指定注册中心的位置 两种方式 --> <!-- <dubbo:registry address="zookeeper://127.0.0.1:2181"></dubbo:registry> --> <dubbo:registry protocol="zookeeper" address="127.0.0.1:2181"></dubbo:registry> <!-- 3、指定通信规则(通信协议?通信端口) --> <dubbo:protocol name="dubbo" port="20882"></dubbo:protocol> <!-- 4、暴露服务 ref:指向服务的真正的实现对象 --> <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> <!--统一设置服务提供方的规则 --> <dubbo:provider timeout="1000"></dubbo:provider> <bean id="userserviceimpl" class="com.badao.gmall.service.impl.userserviceimpl"></bean> </beans>
然后在com.badao.gmall包下新建mainapplication.java
读取配置文件并暴露服务。
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(); } }
参照上面流程新建order-service-consumer服务消费者程序
在pom.xml中添加公共接口依赖以及dubbo和zookeeper相关依赖
<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> <!-- 注册中心使用的是zookeeper,引入操作zookeeper的客户端端 --> <dependency> <groupid>org.apache.curator</groupid> <artifactid>curator-framework</artifactid> <version>2.12.0</version> </dependency> </dependencies> </project>
然后新建接口实现类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; /** * 1、将服务提供者注册到注册中心(暴露服务) * 1)、导入dubbo依赖(2.6.2)\操作zookeeper的客户端(curator) * 2)、配置服务提供者 * * 2、让服务消费者去注册中心订阅服务提供者的服务地址 * @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("用户id:"+userid); //1、查询用户的收货地址 list<useraddress> addresslist = userservice.getuseraddresslist(userid); for (useraddress useraddress : addresslist) { system.out.println(useraddress.getuseraddress()); } return addresslist; } }
按照官方指示,同样新建服务消费者配置文件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> <!--声明需要调用的远程服务的接口;生成远程服务代理 --> <!-- 1)、精确优先 (方法级优先,接口级次之,全局配置再次之) 2)、消费者设置优先(如果级别一样,则消费方优先,提供方次之) --> <dubbo:reference interface="com.badao.gmall.service.userservice" id="userservice" timeout="5000" retries="3" version="*"> </dubbo:reference> </beans>
然后新建mainapplication,加载spring配置,并调用远程服务
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("调用完成...."); system.in.read(); } }
参照官网快速搭建入门程序的指导:
搭建好服务提供者和服务消费者之后,参照上面博客搭建好zookeeper服务注册中心后,启动zookeeper服务端。
然后再参照博客搭建dubbo-admin管理控制台程序。
启动服务提供者的mainapplication使服务暴露。
此时刷新管理控制台,可见此时服务提供者已经暴露。
然后运行服务消费者的mainapplication,远程调用成功。
此时刷新管理控制台
服务提供者与服务消费者各一。
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