一.启动nacos和redis
1.虚拟机查看是否开启nacos和redis
docker ps
2.查看是否安装nacos和redis
docker ps -a
3.启动nacos和redis
docker start nacos
docker start redis-6379
docker ps
二.创建三个idea的maven项目
1.第一个项目dubboapidemo
2.1.1向pom.xml里添加依赖
XML
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<spring-boot.version>2.6.13</spring-boot.version>
<jwt.version>0.7.0</jwt.version>
<fastjson.version>1.2.60</fastjson.version>
<spring-cloud-alibaba.version>2.0.3.RELEASE</spring-cloud-alibaba.version>
<spring-cloud.version>Finchley.SR2</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>${fastjson.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.24</version>
<scope>compile</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>${spring-cloud-alibaba.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<!--2.添加当前项目所依赖的插件: -->
<build>
<plugins>
<!--1.添加tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<port>8080</port>
<path>/</path>
</configuration>
</plugin>
<!--2.添加Spring Boot 的打包插件 -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.1.10.RELEASE</version>
<configuration>
<fork>true</fork>
</configuration>
</plugin>
</plugins>
</build>
2.1.2添加实体类Score
java
package com.jr.entry;
import lombok.Data;
import java.io.Serializable;
@Data
public class Score implements Serializable {
private String name;
private Double score;
}
2.1.3添加ScoreService接口
java
package com.jr.service;
import com.jr.entry.Score;
import java.util.List;
public interface ScoreService {
List<Score> getinfo();
}
2.1.4添加枚举ResultCode
java
package com.jr.util;
public enum ResultCode {
SUCCESS(0, "请求成功"),
ERROR(1, "请求失败"),
;
private int code;
private String message;
ResultCode(int code, String message) {
this.code = code;
this.message = message;
}
public int getCode() {
return code;
}
public String getMessage() {
return message;
}
}
2.1.5添加工具类Result
java
package com.jr.util;
import lombok.Data;
import java.util.HashMap;
import java.util.Map;
@Data
public class Result {
private Integer code;
private String message;
private Map<String, Object> map = new HashMap<>();
private Result() {
}
public static Result ok() {
Result r = new Result();
r.setCode(ResultCode.SUCCESS.getCode());
r.setMessage(ResultCode.SUCCESS.getMessage());
return r;
}
public static Result error() {
Result r = new Result();
r.setCode(ResultCode.ERROR.getCode());
r.setMessage(ResultCode.ERROR.getMessage());
return r;
}
public Result put(String key, Object value) {
map.put(key, value);
return this;
}
public Object get(String key) {
return map.get(key);
}
}
2.1.6把项目打包成jar包
点开idea右边的maven
然后打开左边项目的target,下面就已经出现打包后的jar包了。
2.第二个项目dubboconsumer
2.2.1添加依赖
XML
<?xml version="1.0" encoding="UTF-8"?>
<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.jr</groupId>
<artifactId>dubboconsumer</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.7.RELEASE</version>
</parent>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<spring-boot.version>2.6.13</spring-boot.version>
<jwt.version>0.7.0</jwt.version>
<fastjson.version>1.2.60</fastjson.version>
<spring-cloud-alibaba.version>2.0.3.RELEASE</spring-cloud-alibaba.version>
<spring-cloud.version>Finchley.SR2</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!--json-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>${fastjson.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
<!--引入api工程依赖 -->
<dependency>
<groupId>com.jr</groupId>
<artifactId>dubboapidemo</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!--引入dubbo依赖 -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-dubbo</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>${spring-cloud-alibaba.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<classifier>exec</classifier>
</configuration>
</plugin>
</plugins>
</build>
</project>
这里是第一个项目的信息,根据你的来,这里爆红可能是第一个项目没有进行打包操作。注意这两个项目的groupid一样才能这么互相导依赖。
2.2.2创建SessionConfig配置类
java
package com.jr.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.session.web.http.CookieSerializer;
import org.springframework.session.web.http.DefaultCookieSerializer;
@Configuration
public class SessionConfig {
@Bean
public CookieSerializer cookieSerializer() {
DefaultCookieSerializer serializer = new DefaultCookieSerializer();
serializer.setCookieName("JSESSIONID");
serializer.setCookiePath("/");
serializer.setDomainNamePattern("^.+?\\.(\\w+\\.[a-z]+)$");
return serializer;
}
@Bean
public RedisSerializer<Object> redisSerializer() {
return new GenericJackson2JsonRedisSerializer();
}
}
2.2.3创建实体类User
java
package com.jr.entry;
import lombok.Data;
import org.springframework.stereotype.Component;
import java.util.List;
@Component
@Data
public class User {
private String id;
private String name;
private String password;
private List<Score> scoreList;
}
2.2.4创建UserService接口
java
package com.jr.service;
import com.jr.entry.User;
import org.springframework.stereotype.Component;
@Component
public interface UserService {
public User getinfo();
}
2.2.5创建UserServiceImpl实现类
java
package com.jr.service.impl;
import com.jr.entry.Score;
import com.jr.entry.User;
import com.jr.service.ScoreService;
import com.jr.service.UserService;
import org.apache.dubbo.config.annotation.Reference;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserServiceImpl implements UserService {
@Reference
private ScoreService scoreService;
@Override
public User getinfo() {
User user=new User();
user.setId("111");
user.setName("zhangsan");
user.setPassword("zs123");
List<Score> list=scoreService.getinfo();
user.setScoreList(list);
return user;
}
}
2.2.6创建控制器UserController
java
package com.jr.controller;
import com.jr.entry.User;
import com.jr.service.UserService;
import com.jr.util.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService userService;
@GetMapping
public Result getinfo(){
User user = userService.getinfo();
return Result.ok().put("data",user);
}
}
2.2.7创建启动类
java
package com.jr;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;
@SpringBootApplication
@EnableRedisHttpSession
public class SpringBootMain {
public static void main(String[] args) {
SpringApplication.run(SpringBootMain.class,args);
}
}
2.2.8创建application.properties配置文件
java
spring.application.name=dubbocon
2.2.9创建application.yml配置文件
java
server:
port: 111
spring:
session:
store-type: redis
dubbo:
registry:
address: nacos://192.168.130.39:8848
cloud:
subscribed-services: dubbopro #是p工程的服务名
consumer:
check: false
2.2.10创建bootstrap.yml配置文件
java
spring:
cloud:
nacos:
discovery:
server-addr: 192.168.130.39:8848
config:
server-addr: 192.168.130.39:8848
file-extension: yaml
namespace: 8920c585-274d-477f-b55f-9324be8da9bd
shared-configs:
- data-id: dz14redisssesiton.yaml
group: DEFAULT_GROUP
inetutils:
preferred-networks: 192.168.116
3.第三个项目dubboprovider
2.3.1向pom.xml添加依赖
XML
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.7.RELEASE</version>
</parent>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<spring-boot.version>2.6.13</spring-boot.version>
<jwt.version>0.7.0</jwt.version>
<fastjson.version>1.2.60</fastjson.version>
<spring-cloud-alibaba.version>2.0.3.RELEASE</spring-cloud-alibaba.version>
<spring-cloud.version>Finchley.SR2</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!--json-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>${fastjson.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
<!--引入api工程依赖 -->
<dependency>
<groupId>com.jr</groupId>
<artifactId>dubboapidemo</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!--引入dubbo依赖 -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-dubbo</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>${spring-cloud-alibaba.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<classifier>exec</classifier>
</configuration>
</plugin>
</plugins>
</build>
2.3.2创建SessionConfig配置类
java
package com.jr.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.session.web.http.CookieSerializer;
import org.springframework.session.web.http.DefaultCookieSerializer;
@Configuration
public class SessionConfig {
@Bean
public CookieSerializer cookieSerializer() {
DefaultCookieSerializer serializer = new DefaultCookieSerializer();
serializer.setCookieName("JSESSIONID");
serializer.setCookiePath("/");
serializer.setDomainNamePattern("^.+?\\.(\\w+\\.[a-z]+)$");
return serializer;
}
@Bean
public RedisSerializer<Object> redisSerializer() {
return new GenericJackson2JsonRedisSerializer();
}
}
2.3.3创建ScoreServiceImpl接口实现类
@Service主键要用dubbo下面的,不能用Spring的注解
java
package com.jr.service.impl;
import com.jr.entry.Score;
import com.jr.service.ScoreService;
import org.apache.dubbo.config.annotation.Service;
import java.util.ArrayList;
import java.util.List;
@Service
public class ScoreServiceImpl implements ScoreService {
@Override
public List<Score> getinfo() {
List<Score> list=new ArrayList<>();
for(int i=0;i<3;i++){
Score score=new Score();
score.setName("admin");
score.setScore(Math.random()*100);
list.add(score);
}
return list;
}
}
2.3.4创建启动类
java
package com.jr;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;
import org.springframework.stereotype.Component;
@SpringBootApplication
@EnableRedisHttpSession
@ComponentScan("com.jr.service")
public class SpringBootMain {
public static void main(String[] args) {
SpringApplication.run(SpringBootMain.class,args);
}
}
2.3.5创建application.properties配置文件
java
spring.application.name=dubbopro
2.3.6编写application.yml配置文件
java
server:
port: 222
spring:
session:
store-type: redis
dubbo:
scan:
base-packages: com.jr.service #指定把哪一个包下面的Servlet交给dubbo去管理。
protocol:
name: dubbo
port: -1
registry:
address: nacos://192.168.130.39:8848
cloud:
subscribed-services: ""
2.3.7编写bootstrap.yml配置文件
和第二个项目一样
java
spring:
cloud:
nacos:
discovery:
server-addr: 192.168.130.39:8848
config:
server-addr: 192.168.130.39:8848
file-extension: yaml
namespace: 8920c585-274d-477f-b55f-9324be8da9bd
shared-configs:
- data-id: dz14redisssesiton.yaml
group: DEFAULT_GROUP
inetutils:
preferred-networks: 192.168.116
三.同时启动项目,用postman工具进行测试
启动第二个项目和第三个项目。启动时,要先启动consumer工程,后启动provider工程,避免出现启动失败的错误。
启动完后,我们打开postman工具进行测试。