Dubbo（二）入门

其他 2021-01-27 02:52:59 阅读次数: 0

Dubbo（二）入门

注册中心

Zookeeper

官方推荐使用zookeeper注册中心；
注册中心负责服务地址的注册与查找，相当于目录服务；
服务提供者和消费者只在启动时与注册中心交互，注册中不转发请求，压力较小；
Zookeeper是apache hadoop的子项目，是一个树形的目录服务，支持变更推送，适合作为dubbo的服务注册中心，工业强度较高，可用于生产环境；

dubbo即是求职的人，也是招聘单位，而zookeeper就是人才市场/招聘网站；

服务提供方

<packaging>war</packaging>

    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
        <spring.version>5.0.6.RELEASE</spring.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!--dubbo -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.5.7</version>
        </dependency>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.4.6</version>
        </dependency>
        <dependency>
            <groupId>com.github.sgroschupf</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.1</version>
        </dependency>
        <dependency>
            <groupId>javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.11.0.GA</version>
        </dependency>
    </dependencies>


    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <configuration>
                    <port>8001</port>
                    <path>/</path>
                </configuration>
                <executions>
                    <execution>
                        <!-- 打包完成后,运行服务 -->
                        <phase>package</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

/**
 * @Program: dubbo_test
 * @Author: XiaoXing
 * @Create: 2021-01-14 22:09
 * @Description: 服务接口
 **/
public interface HelloService {
    
    

    public String sayHello(String name);

}

import com.alibaba.dubbo.config.annotation.Service;
import service.HelloService;

/**
 * @Program: dubbo_test
 * @Author: XiaoXing
 * @Create: 2021-01-14 22:09
 * @Description: 服务接口实现类
 **/
@Service
public class HelloServiceImpl implements HelloService {
    
    

    @Override
    public String sayHello(String name) {
    
    
        return "Hello " + name + " !!!";
    }

}

<?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:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx
        https://www.springframework.org/schema/tx/spring-tx.xsd
        http://code.alibabatech.com/schema/dubbo
        http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <!--1.服务提供方在zookeeper中的“别名”-->
    <dubbo:application name="dubbo-test"/>
    <!--2.注册中心的地址-->
    <dubbo:registry address="zookeeper://106.75.245.83:2181"/>
    <!--3.扫描类（将什么包下的类作为服务提供类）-->
    <dubbo:annotation package="service.impl"/>
    <!-- 让监控 去注册中心 自动找服务 -->
    <dubbo:monitor protocol="registry"/>

</beans>

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/spring.xml</param-value>
    </context-param>

</web-app>

服务消费方

<packaging>war</packaging>
<properties>
    <maven.compiler.source>11</maven.compiler.source>
    <maven.compiler.target>11</maven.compiler.target>
    <spring.version>5.0.6.RELEASE</spring.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <!--dubbo -->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>dubbo</artifactId>
        <version>2.5.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.zookeeper</groupId>
        <artifactId>zookeeper</artifactId>
        <version>3.4.6</version>
    </dependency>
    <dependency>
        <groupId>com.github.sgroschupf</groupId>
        <artifactId>zkclient</artifactId>
        <version>0.1</version>
    </dependency>
    <dependency>
        <groupId>javassist</groupId>
        <artifactId>javassist</artifactId>
        <version>3.11.0.GA</version>
    </dependency>
</dependencies>


<build>
    <plugins>
        <plugin>
            <groupId>org.apache.tomcat.maven </groupId>
            <artifactId>tomcat7-maven-plugin</artifactId>
            <configuration>
                <port>8002</port>
                <path>/</path>
            </configuration>
            <executions>
                <execution>
                    <!-- 打包完成后,运行服务 -->
                    <phase>package</phase>
                    <goals>
                        <goal>run</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

/**
 * @Program: dubbo_test2
 * @Author: XiaoXing
 * @Create: 2021-01-14 22:24
 * @Description: 服务方接口声明而已，具体实现远程调用dubbo_test的service实现类
 **/
public interface HelloService {
    
    

    String sayHello( String name );
}

<?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:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx
        https://www.springframework.org/schema/tx/spring-tx.xsd
        http://code.alibabatech.com/schema/dubbo
        http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <!--1.服务提供方在zookeeper中的“别名”-->
    <dubbo:application name="dubbo-test2"/>
    <!--2.注册中心的地址-->
    <dubbo:registry address="zookeeper://106.75.245.83:2181"/>
    <!--3.扫描类（将什么包下的类作为服务提供类）-->
    <dubbo:annotation package="controller"/>
    <!-- 让监控 去注册中心 自动找服务 -->
    <dubbo:monitor protocol="registry"/>

</beans>

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">

    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/spring.xml</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

/**
 * @Program: dubbo_test2
 * @Author: XiaoXing
 * @Create: 2021-01-14 22:22
 * @Description: 控制层
 **/
@Controller
public class HelloAction {
    
    

    @Reference  // 远程去服务方将service的实现类注入进来
//    @Autowired
    private HelloService helloService;

    @RequestMapping("/hello")
    @ResponseBody
    public String sayHi(String name){
    
    
        System.out.println(name);
        return helloService.sayHello(name);
    }
}

猜你喜欢

转载自blog.csdn.net/weixin_49741990/article/details/112689335
今日推荐
wlnmp 一键安装包更新 240522
ChatGPT 严重宕机，结果被造谣“遭遇俄罗斯黑客入侵”
Linus “吃狗粮”最积极！
开源日报 | Winamp播放器即将开源；生成式AI之战升级第二轮；Linus“吃狗粮”最积极；AI进入泡沫前期；吴泳铭为阿里云带来了什么？
NetBSD 禁止提交由 AI 生成的代码
Apache Doris 2.0.10 版本正式发布！
开源日报 | 大模型开战；大模型独角兽被曝卖身；周鸿祎建议谷歌开源所有产品；最大开源AI社区提供1000万美元共享GPU
周排行
mongodb 下载与安装与初步使用
20190530
iOS录制回放神器AutoTouch使用介绍
同心圆 猜数字游戏
mamp pro安装redis扩展 各个 步骤截图
windows10下安装docker报错：error during connect
跨域授权 Federated Identity Pattern
js时间比较大小
pandas to_csv()使用方法
从JDK源码角度看Byte
每日归档
更多
2024-05-22(41)
2024-05-21(8)
2024-05-20(36)
2024-05-19(0)
2024-05-18(4)
2024-05-17(34)
2024-05-16(6)
2024-05-15(24)
2024-05-14(0)
2024-05-13(18)

代码天地 © 2018 codetd.com

境外服务器   最新电视剧2022