Dubbo 配置http协议

曾经终败给现在 2022-09-15 15:50 244阅读 0赞

# 一 服务提供者 #

在服务提供者中，需要添加 注释为http协议支持 的依赖jar包，修改启动类的启动方式，添加provider.xml配置

<?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">
        <parent>
            <artifactId>tech-dubbo</artifactId>
            <groupId>com.tech</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>tech-service</artifactId>
    
        <name>tech-service</name>
    
        <properties>
            <spring-boot.version>2.3.0.RELEASE</spring-boot.version>
            <dubbo.version>2.7.8</dubbo.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>com.tech</groupId>
                <artifactId>tech-api</artifactId>
                <version>1.0-SNAPSHOT</version>
            </dependency>
    
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-spring-boot-starter</artifactId>
                <version>2.7.8</version>
            </dependency>
    
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>org.apache.zookeeper</groupId>
                <artifactId>zookeeper</artifactId>
                <version>3.6.3</version>
            </dependency>
            <dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-framework</artifactId>
                <version>4.0.1</version>
            </dependency>
            <dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-recipes</artifactId>
                <version>4.0.1</version>
            </dependency>
    
            
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
            </dependency>
            <dependency>
                <groupId>org.apache.tomcat.embed</groupId>
                <artifactId>tomcat-embed-core</artifactId>
            </dependency>
            <dependency>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-server</artifactId>
            </dependency>
            <dependency>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-servlet</artifactId>
            </dependency>
            <dependency>
                <groupId>com.github.briandilley.jsonrpc4j</groupId>
                <artifactId>jsonrpc4j</artifactId>
                <version>1.2.0</version>
            </dependency>
    
        </dependencies>
    
        <dependencyManagement>
            <dependencies>
                
                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-dependencies</artifactId>
                    <version>${spring-boot.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
    
                
                <dependency>
                    <groupId>org.apache.dubbo</groupId>
                    <artifactId>dubbo-dependencies-bom</artifactId>
                    <version>${dubbo.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
    
                <dependency>
                    <groupId>org.apache.dubbo</groupId>
                    <artifactId>dubbo</artifactId>
                    <version>${dubbo.version}</version>
                    <exclusions>
                        <exclusion>
                            <groupId>org.springframework</groupId>
                            <artifactId>spring</artifactId>
                        </exclusion>
                        <exclusion>
                            <groupId>javax.servlet</groupId>
                            <artifactId>servlet-api</artifactId>
                        </exclusion>
                        <exclusion>
                            <groupId>log4j</groupId>
                            <artifactId>log4j</artifactId>
                        </exclusion>
                    </exclusions>
                </dependency>
            </dependencies>
        </dependencyManagement>
    </project>

启动类修改服务启动方式

package com.tech;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.WebApplicationType;
    import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
    import org.springframework.boot.builder.SpringApplicationBuilder;
    import org.springframework.context.annotation.ComponentScan;
    import org.springframework.context.annotation.ImportResource;
    
    /**
     * @author lw
     * @since 2021/10/11
     */
    @ImportResource("provider.xml")
    @EnableAutoConfiguration
    public class ServiceApp {
        public static void main(String[] args) {
    //        SpringApplication.run(ServiceApp.class);
            new SpringApplicationBuilder(ServiceApp.class).web(WebApplicationType.NONE).run();
        }
    }

provider.xml

userService fileService配置为http协议

服务接口

package com.tech.impl;
    
    import com.tech.UserService;
    import lombok.extern.slf4j.Slf4j;
    
    import java.util.concurrent.TimeUnit;
    
    @Slf4j
    public class UserServiceImpl implements UserService {
    
        public String hello()  {
            log.info("服务调用");
            try {
                TimeUnit.SECONDS.sleep(5L);
                log.info("调用结束");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            return "hello word";
        }
    }

package com.tech.impl;
    
    import com.tech.FileService;
    
    /**
     * @author lw
     * @since 2021/10/13
     */
    public class FileServiceImpl implements FileService {
        @Override
        public void upload(String msg) {
            System.out.println("文件上传成功 "+msg);
        }
    }

#  #

# 二 服务消费者 #

服务消费者，需要添加依赖包jsonrpc4j，counsermer.xml与采用dubbo协议配置方式一样，不用修改

<?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">
        <parent>
            <artifactId>tech-dubbo</artifactId>
            <groupId>com.tech</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>tech-web</artifactId>
    
        <name>tech-web</name>
    
        <properties>
            <spring-boot.version>2.3.0.RELEASE</spring-boot.version>
            <dubbo.version>2.7.8</dubbo.version>
            <zookeeper.version>2.12.0</zookeeper.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>com.tech</groupId>
                <artifactId>tech-api</artifactId>
                <version>1.0-SNAPSHOT</version>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-spring-boot-starter</artifactId>
                <version>2.7.8</version>
            </dependency>
    
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.apache.zookeeper</groupId>
                <artifactId>zookeeper</artifactId>
                <version>3.6.3</version>
            </dependency>
            <dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-framework</artifactId>
                <version>4.0.1</version>
            </dependency>
            <dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-recipes</artifactId>
                <version>4.0.1</version>
            </dependency>
    
            
            <dependency>
                <groupId>com.github.briandilley.jsonrpc4j</groupId>
                <artifactId>jsonrpc4j</artifactId>
                <version>1.2.0</version>
            </dependency>
    
    
    
        </dependencies>
    
        <dependencyManagement>
            <dependencies>
                
                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-dependencies</artifactId>
                    <version>${spring-boot.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
    
                
                <dependency>
                    <groupId>org.apache.dubbo</groupId>
                    <artifactId>dubbo-dependencies-bom</artifactId>
                    <version>${dubbo.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
    
                <dependency>
                    <groupId>org.apache.dubbo</groupId>
                    <artifactId>dubbo</artifactId>
                    <version>${dubbo.version}</version>
                    <exclusions>
                        <exclusion>
                            <groupId>org.springframework</groupId>
                            <artifactId>spring</artifactId>
                        </exclusion>
                        <exclusion>
                            <groupId>javax.servlet</groupId>
                            <artifactId>servlet-api</artifactId>
                        </exclusion>
                        <exclusion>
                            <groupId>log4j</groupId>
                            <artifactId>log4j</artifactId>
                        </exclusion>
                    </exclusions>
                </dependency>
            </dependencies>
        </dependencyManagement>
    </project>

consumer.xml

启动类

package com.tech;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.context.annotation.ImportResource;
    
    @SpringBootApplication
    @ImportResource("consumer.xml")
    public class WebApp {
        public static void main(String[] args) {
            SpringApplication.run(WebApp.class);
        }
    }

服务调用类

package com.tech.controller;
    
    import com.tech.FileService;
    import com.tech.UserService;
    import org.apache.dubbo.config.annotation.DubboReference;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * @author lw
     * @since 2021/10/11
     */
    @RestController
    public class UserController {
    
        //dubbo.registry.address=N/A 需要通过url配置服务地址
    //    @DubboReference(version = "1.0.0", url = "dubbo://127.0.0.1:12345")
    
        //check 默认为true,启动依赖检查，如果依赖的UserService不存在（注册中心中没有该服务实例信息）则启动失败
    //    @DubboReference(version = "1.0.0",check = false)
    
        //timeout 服务调用时的超时时间，达到该时间服务消费者报超时异常
        //cluster配置集群容错策略
    //    failover （默认容错策略） 失败重试，默认重试2次
    //    failfast 快速失败，不进行重试
    //    forking 并行调用多个服务器，只要有一个成功就返回
    //    @DubboReference(version = "1.0.0",timeout = 3000,retries = 1,cluster = "failover")
    //    private UserService userService;
    //
    //    @DubboReference(version = "1.0.0")
    //    private FileService fileService;
    
        @Autowired
        private UserService userService;
        @Autowired
        private FileService fileService;
    
        @GetMapping("hello")
        public String hello() {
            return userService.hello();
        }
    
        @GetMapping("upload")
        public String upload(){
            fileService.upload("hello word");
            return "hello word";
        }
    }