# dubbo学习

**Repository Path**: ycfrank/dubbo-use

## Basic Information

- **Project Name**: dubbo学习
- **Description**: 搭建简单的dubbo服务
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-02-06
- **Last Updated**: 2024-02-06

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

### 什么是协议

Client(Consumer端)与Server（Provider端）在传输数据时双方的约定。
![img.png](img.png)

#### Dubbo3中常见的协议

- 1.dubbo协议
- 2.rest协议
- 3.triple协议
- 4.grpc协议
- 5.thirft协议
- 6.webservice协议
- 7.rocketmq协议
- 8.redis协议
- 9.memacached协议
- ...等等

**不同协议的通信效率对比**

dubbo官方提供的不同协议之间通信效率的对比如下：
![img_1.png](img_1.png)

### Dubbo协议

- 1.Dubbo的默认协议，自己定义的`私有协议`，基于TCP层，默认的通信方式是Netty4;
- 2.Dubbo采用单一长连接和NIO异步通讯，适合于小数据量大并发的服务调用，反之，Dubbo缺省协议不适合传送大数据量的服务，比如传文件、传视频等。

官方提供的Dubbo协议结构图：
![img_2.png](img_2.png)

### Dubbo协议的使用

#### 准备——zookeeper的安装

服务端： https://archive.apache.org/dist/zookeeper/
客户端： https://issues.apache.org/jira/secure/attachment/12436620/ZooInspector.zip

#### 创建项目

父项目maven文件中对依赖版本进行管理

至于 dubbo 相关依赖说明 参考 https://juejin.cn/post/7327725061162254386

```xml

<properties>
    <maven.compiler.source>8</maven.compiler.source>
    <maven.compiler.target>8</maven.compiler.target>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <dubbo.version>3.2.0</dubbo.version>
    <spring-boot.version>2.7.12</spring-boot.version>
    <spring.version>5.3.25</spring.version>
</properties>
<dependencyManagement>
<dependencies>
    <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo-bom</artifactId>
        <version>${dubbo.version}</version>
        <type>pom</type>
        <scope>import</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-dependencies</artifactId>
        <version>${spring-boot.version}</version>
        <type>pom</type>
        <scope>import</scope>
    </dependency>
</dependencies>
</dependencyManagement>
```

引入相关依赖

```xml

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo-spring-boot-starter</artifactId>
    </dependency>

    <!--zk注册中心 需要的依赖-->
    <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo-dependencies-zookeeper-curator5</artifactId>
        <version>${dubbo.version}</version>
        <type>pom</type>
        <exclusions>
            <exclusion>
                <artifactId>zookeeper</artifactId>
                <groupId>org.apache.zookeeper</groupId>
            </exclusion>
        </exclusions>
    </dependency>

    <dependency>
        <groupId>org.apache.zookeeper</groupId>
        <artifactId>zookeeper</artifactId>
        <version>3.4.9</version>
    </dependency>

    <!--lombok-->
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.22</version>
    </dependency>


    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</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-core</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-expression</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jcl</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
    </dependency>

</dependencies>
```