Dubbo+zookeeper搭配分布式服务的过程详解

目录

• 分布式架构：
• Dubbo 是什么
• Dubbo:
• 思想：
• 依赖：

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：

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;

@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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