SpringBoot_ integrated Dubbo

Preparing for Integration

1, Alibaba offered dubbo integrated springboot open source projects;

3, we will use the jar package provided by the integration of the project;

<!--添加dubbo集成springboot依赖-->
<dependency>
   <groupId>com.alibaba.spring.boot</groupId>
   <artifactId>dubbo-spring-boot-starter</artifactId>
   <version>1.0.0</version>
</dependency>

dubbo development generally recommended three projects:

Dubbo project development service interface

Dubbo project development service provider

Dubbo Consumer Project Development Services

Dubbo service interface development project to project maven [common]

According to Dubbo official development proposals to create an interface project, which only defines interfaces and model classes

Defined interface class

package com.joinlabs.dubbo.service;

import com.joinlabs.dubbo.model.User;

/**
 * Created by Administrator on 2018/10/26/026.
 */
public interface UserService {

    public User findById(int id);

    public String findUserName(int id);

}

Define model classes

package com.joinlabs.dubbo.model;

/**
* Created by Administrator on 2018/10/26/026.
*/
public class User {
    private int id;
    private String name;

    public User() {
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

Interface package for the project, using the tools to package maven

After successfully packaged the jar package will be saved to the local repository maven maven in the form of, service providers and consumers to facilitate project referenced in pom.xml

Dubbo development service providers [project] springboot

1, Springboot create a project and configuring the related dependencies;

2, integrated with added springboot dubbo starting dependence:

<!--添加dubbo集成springboot依赖-->
<dependency>
   <groupId>com.alibaba.spring.boot</groupId>
   <artifactId>dubbo-spring-boot-starter</artifactId>
   <version>1.0.0</version>
</dependency>

3, the configuration information dubbo in the core configuration file application.properties Springboot in:

# Built-in port after the Tomcat server startup 
server.port = 8080 

#Dubbo configuration 
spring.dubbo.appname = springboot-dubbo- Provider 
spring.dubbo.registry = ZooKeeper: // localhost: 2181

The use of the registry as a zookeeper, zookeeper is necessary to add the client jar package:

<!-- zookeeper客户端依赖start -->
<dependency>
   <groupId>com.101tec</groupId>
   <artifactId>zkclient</artifactId>
   <version>0.10</version>
   <exclusions>
      <exclusion>
         <groupId>log4j</groupId>
         <artifactId>log4j</artifactId>
      </exclusion>
      <exclusion>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-log4j12</artifactId>
      </exclusion>
   </exclusions>
</dependency>
<!-- zookeeper客户端依赖end -->

4, write the interface implementation class of Dubbo, go try the above interfaces project service interfaces:

I want to rely on the introduction of an interface jar package in pom.xml

<dependency>
   <groupId>com.joinlabs.dubbo</groupId>
   <artifactId>01springboot-dubbo-interface</artifactId>
   <version>1.0-SNAPSHOT</version>
</dependency>

Implementing Classes:

Package com.joinlabs.dubbo.service.impl; 

Import com.alibaba.dubbo.config.annotation.Service;
 Import com.joinlabs.dubbo.model.User;
 Import com.joinlabs.dubbo.service.UserService;
 Import org.springframework .stereotype.Component; 

/ ** 
 . * 2018/10/26/026 the Created by Administrator oN 
 * / 
@Service (the interfaceClass . UserService = class ) // prior to the annotation of Dubbo is equivalent to <dubbo: service interface = ""> </ Dubbo:-Service> 
@Component // the annotation is a spring, or using org.springframework.stereotype.Service @ 

public  class UserServiceImpl the implements UserService {

    @Override 
    public the User the findById ( int ID) { 
        the User User = new new the User (); // analog data, can also be integrated into the database query data mybatis 
        user.setId (ID); 
        user.setName ( "name" + ID);
         return User; 
    } 

    @Override 
    public String findUserName ( int ID) {
         return "name" + ID; 
    } 
}

5, the main entrance to write a program to start Dubbo Service Provider:

package com.joinlabs.dubbo;

import com.alibaba.dubbo.spring.boot.annotation.EnableDubboConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@EnableDubboConfiguration //开启dubbo配置支持
public class Application {

   public static void main(String[] args) {
      SpringApplication.run(Application.class, args);
   }
}

Installation and start-zookeeper

Download the installation package

Unzip to c root directory

Modifying profile names zookeeper-3.4.10 \ conf \ zoo_sample.cfg to zoo.cfg

Edit the configuration file content

for

Into the zookeeper-3.4.10 \ bin directory, and start zkServer.cmd, do not close the console window

You can see the process through jsp command

Through built-in client to connect

Open a new console, execute the command zkCli.cmd

Dubbo develop consumer service project] [springboot

1, Springboot create a project and configuring the related dependencies;

2, integrated with added springboot dubbo starting dependence:

<dependency>
    <groupId>com.alibaba.spring.boot</groupId>
    <artifactId>dubbo-spring-boot-starter</artifactId>
    <version>1.0.0</version>
</dependency>

3, the configuration information dubbo in the core configuration file application.properties Springboot in:

# WEB service port 
server.port = 9090 
# Dubbo configuration 
spring.dubbo.appname = springboot-dubbo- Consumer 
spring.dubbo.registry = ZooKeeper: // 192.168.91.129:2181

The use of the registry as a zookeeper, zookeeper is necessary to add the client jar package:

<dependency>
    <groupId>com.101tec</groupId>
    <artifactId>zkclient</artifactId>
    <version>0.10</version>
</dependency>

4, write a Controller class, call the remote service Dubbo:

@Controller
 public  class the UserController { 
    @Reference // using annotations dubbo references remote dubbo service 
    Private UserService userService; 
    @ RequestMapping ( "/ sayHi" )
     public @ResponseBody sayHi String () {
         return userService.sayHi ( "the Boot dubbo the Spring .. .... " ); 
    } 
}

5, the main entrance to write a program to start Dubbo Service Provider:

@SpringBootApplication
@EnableDubboConfiguration //开启dubbo配置支持
public class SpringbootApplication {
    public static void main(String[] args) {
        SpringApplication.run(SpringbootApplication.class, args);
    }
}