Dubbo+zookeeper搭配分布式服务的过程详解_Java教程

分布式架构：

1.当垂直应用越来越多，应用之间交互不可避免，将核心业务抽取出来，作为独立的服务，逐渐形成稳定的服务中心，前端应用能更快速的响应多变的市场需求。
2.此时，用于提高业务复用及整合的分布式服务框架(RPC) 是关键。

Dubbo 是什么

一款分布式服务框架
高性能和透明化的RPC远程服务调用方案
SOA服务治理方案

Dubbo:

作为分布式架构比较后的框架，同时也是比较容易入手的框架，适合作为分布式的入手框架，下面是简单的搭建过程

工具:idea+tomact+zookeeper(知识点:jsp,spring,springmvc,maven)

思想：

Dubbo+zookeeper搭配分布式服务的过程详解

依赖：

<dependencies>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context</artifactId>
          <version>5.2.5.RELEASE</version>
      </dependency>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
          <version>5.2.5.RELEASE</version>
      </dependency>
      <dependency>
          <groupId>com.alibaba</groupId>
          <artifactId>dubbo</artifactId>
          <version>2.6.2</version>
      </dependency>
      <!--zookeeper依赖-->
      <dependency>
          <groupId>org.apache.curator</groupId>
          <artifactId>curator-framework</artifactId>
          <version>4.1.0</version>
      </dependency>
      <dependency>
          <groupId>com.atchengdu</groupId>
          <artifactId>001-interface</artifactId>
          <version>1.0-SNAPSHOT</version>
      </dependency>
  </dependencies>

工程分布：

Dubbo+zookeeper搭配分布式服务的过程详解

provider实现interface提供服务,constomer消费provider提供的服务

interface:

Dubbo+zookeeper搭配分布式服务的过程详解

package com.atchengdu.serviceinterface;

import com.atchengdu.pojo.User;
public interface Userservice {
  //获取user的信息
  User getuserByid(Integer ie);
}
package com.atchengdu.pojo;
import java.io.Serializable;
public class User implements Serializable {
  private Integer id ;
  private String name;
  public User(Integer id, String name) {
      this.id = id;
      this.name = name;
  }
  public User() {
  public Integer getId() {
      return id;
  public void setId(Integer id) {
  public String getName() {
      return name;
  public void setName(String name) {
  @Override
  public String toString() {
      return "User{" +
              "id=" + id +
              ", name='" + name + '\'' +
              '}';

provider：

Dubbo+zookeeper搭配分布式服务的过程详解

package com.atchengdu.Modulserviceimpl;

import com.atchengdu.pojo.User;
import com.atchengdu.serviceinterface.Userservice;
public class Userserviceimpl implements Userservice {
  @Override
  public User getuserByid(Integer ie) {
      User user=new User(1,"张三");
      return user;
  }
}

<?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">
  <!--声明名称-->
  <dubbo:application name="002-provider"></dubbo:application>
  <!--设置协议和端口号-->
  <dubbo:protocol name="dubbo" port="20880"></dubbo:protocol>
  <!--使用注册中心-->
  <dubbo:registry address="zookeeper://localhost:2181"></dubbo:registry>
  <!--暴露服务接口-->
  <dubbo:service interface="com.atchengdu.serviceinterface.Userservice" ref="userserviceimpl"></dubbo:service>
  <!--加载业务实实现了-->
  <bean id="userserviceimpl" class="com.atchengdu.Modulserviceimpl.Userserviceimpl"></bean>
</beans>

constomer:

Dubbo+zookeeper搭配分布式服务的过程详解

package com.atchengdu.webcontroller;

import com.atchengdu.pojo.User;
import com.atchengdu.serviceinterface.Userservice;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class Usercontroller {
  @Autowired
  private Userservice userservice;
  @RequestMapping("/user")
  public  String user(Model model,Integer id ){
      User user = userservice.getuserByid(id);
      model.addAttribute("user",user);
      return "user";
  }
}

<?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:context="http://www.springframework.org/schema/context"
     xmlns:aop="http://www.springframework.org/schema/aop"
     xmlns:mvc="http://www.springframework.org/schema/mvc"
     xmlns:tx="http://www.springframework.org/schema/task"
     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.xsd
                          http://www.springframework.org/schema/task https://www.springframework.org/schema/task/spring-task.xsd
                         http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd
                         http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan base-package="com.atchengdu.webcontroller">
</context:component-scan>
<mvc:annotation-driven></mvc:annotation-driven>
  <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
      <property name="suffix" value=".jsp"></property>
      <property name="prefix" value="/"></property>
   </bean>
</beans>

<?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="003-constomer"></dubbo:application>
  <dubbo:registry address="zookeeper://localhost:2181"></dubbo:registry>
  <dubbo:reference id="userservice" interface="com.atchengdu.serviceinterface.Userservice"></dubbo:reference>
</beans>

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原文链接：https://blog.csdn.net/qq_53909398/article/details/123923367