Dubbo+zookeeper搭配分布式服务的方法

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分布式架构： 

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：

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：

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

interface:

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：

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:

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; @Controllerpublic 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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