Golang

关注公众号 jb51net

关闭
首页 > 脚本专栏 > Golang > Go生成grpc

GoLang与Java各自生成grpc代码流程介绍

作者：Json_Marz

这篇文章主要介绍了GoLang与Java各自生成grpc代码流程，文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值，需要的朋友们下面随着小编来一起学习吧

1.背景

由于公司的日志系统使用的是plumelog，最近生产环境老是报 jedis连接池不够，导致丢失日志，而且服务老是重启，怀疑跟日志系统有关，于是自己改造plumelog，使用go grpc生成server端，使用java grpc生成客户端，将日志以grpc服务形式传递到server端。

2.go生成grpc代码

2.1 安装

protc：https://github.com/protocolbuffers/protobuf/releases

选择自己所需版本，解压后将protoc.exe拷贝至go环境的bin目录下

2.2 安装对应插件

go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.28
go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.2

将生成的插件拷贝至go环境的bin目录下

编写.proto文件：

syntax = "proto3";
// 指定等会文件生成出来的package
package server;
option go_package = "plumelog/rpc;server";
// 定义request model
message PlumelogRequest{
  string message = 1; // 1代表顺序
}
// 定义response model
message PlumelogResponse{
  string message = 1; // 1代表顺序
}
// 定义服务主体
service PlumelogService{
  // 定义方法
  rpc GetPlumelog(PlumelogRequest) returns(PlumelogResponse);
}

项目结构图：

在终端cd到proto目录下，执行如下命令生成grpc代码：

 protoc --go_out=plugins=grpc:. server.proto

server端：

main.go：

import (
    "google.golang.org/grpc"
    "log"
    "net"
    "plumelog/rpc"
    "plumelog/server"
)
func main() {
    // 1. new一个grpc的server
    rpcServer := grpc.NewServer()
    // 2. 将刚刚我们新建的ProdService注册进去
    rpc.RegisterPlumelogServiceServer(rpcServer, new(server.RpcServer))
    // 3. 新建一个listener，以tcp方式监听8899端口
    listener, err := net.Listen("tcp", ":8899")
    if err != nil {
        log.Fatal("服务监听端口失败", err)
    }
    // 4. 运行rpcServer，传入listener
    _ = rpcServer.Serve(listener)
}

server.go

package server
import (
    "context"
    "plumelog/rpc"
)
type RpcServer struct {
}
var pushProducer *plumelog.Producer
func (*RpcServer) GetProductStock(ctx context.Context, req *rpc.PlumelogRequest) (*rpc.PlumelogResponse, error) {
    fmt.Println(req.Message)
    return &rpc.PlumelogResponse{Message: req.Message}, nil
}

3.java生成grpc代码

3.1 idea安装protobuf插件

3.2 创建maven项目

pom.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">
    <parent>
        <groupId>com.plumelog</groupId>
        <artifactId>plumelog</artifactId>
        <version>3.5</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>plumelog-logback</artifactId>
    <name>plumelog-logback</name>
    <packaging>jar</packaging>
    <dependencies>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
            <version>1.2.3</version>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.3</version>
        </dependency>
        <dependency>
            <groupId>com.plumelog</groupId>
            <artifactId>plumelog-core</artifactId>
            <version>${project.parent.version}</version>
        </dependency>
        <dependency>
            <groupId>com.google.protobuf</groupId>
            <artifactId>protobuf-java</artifactId>
            <version>3.5.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.google.protobuf/protobuf-java-util -->
        <dependency>
            <groupId>com.google.protobuf</groupId>
            <artifactId>protobuf-java-util</artifactId>
            <version>3.5.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/io.grpc/grpc-all -->
        <dependency>
            <groupId>io.grpc</groupId>
            <artifactId>grpc-all</artifactId>
            <version>1.12.0</version>
        </dependency>
        <dependency>
            <groupId>javax.annotation</groupId>
            <artifactId>javax.annotation-api</artifactId>
            <version>1.3.2</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>javax.annotation</groupId>
            <artifactId>javax.annotation-api</artifactId>
            <version>1.3.2</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>javax.annotation</groupId>
            <artifactId>javax.annotation-api</artifactId>
            <version>1.3.2</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <!-- 依赖包插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <executions>
                    <execution>
                        <id>copy-dependencies</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-dependencies</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${project.build.directory}/lib</outputDirectory>
                            <!-- 是否不包含间接依赖 -->
                            <excludeTransitive>false</excludeTransitive>
                            <!-- 忽略版本 -->
                            <stripVersion>false</stripVersion>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.xolstice.maven.plugins</groupId>
                <artifactId>protobuf-maven-plugin</artifactId>
                <version>0.5.0</version>
                <configuration>
                    <protocArtifact>
                        com.google.protobuf:protoc:3.1.0:exe:${os.detected.classifier}
                    </protocArtifact>
                    <pluginId>grpc-java</pluginId>
                    <pluginArtifact>
                        io.grpc:protoc-gen-grpc-java:1.11.0:exe:${os.detected.classifier}
                    </pluginArtifact>
                </configuration>
                <!--                <executions>-->
                <!--                    <execution>-->
                <!--                        <goals>-->
                <!--                            <goal>compile</goal>-->
                <!--                            <goal>compile-custom</goal>-->
                <!--                        </goals>-->
                <!--                    </execution>-->
                <!--                </executions>-->
            </plugin>
        </plugins>
        <extensions>
            <extension>
                <groupId>kr.motd.maven</groupId>
                <artifactId>os-maven-plugin</artifactId>
                <version>1.6.2</version>
            </extension>
        </extensions>
    </build>
</project>

maven插件：

3.3 生成grpc代码

// 这个就是protobuf的中间文件
// 指定的当前proto语法的版本，有2和3
syntax = "proto3";
// 指定等会文件生成出来的package
package server;
option java_package = "com.plumelog.logback.rpc";
option java_multiple_files = false;
option java_outer_classname = "RpcClient";
// 定义request model
message PlumelogRequest{
  string message = 1; // 1代表顺序
}
// 定义response model
message PlumelogResponse{
  string message = 1; // 1代表顺序
}
// 定义服务主体
service PlumelogService{
  // 定义方法
  rpc GetPlumelog(PlumelogRequest) returns(PlumelogResponse);
}

ps：指定的package要与go 那边的proto指定的package一致，否则启动报找不到rpc服务

双击maven插件的protobuf:complie生成rpc代码，双击maven插件的protobuf:custom生成grpc代码

调用：

    private String rpcHost = "127.0.0.1";
    private int rpcPort = 8899;
    ManagedChannel channel = ManagedChannelBuilder.forAddress(rpcHost, rpcPort).usePlaintext().build();
    @Override
    protected void append(ILoggingEvent event) {
        if (event != null) {
            send(event);
        }
    }
    protected void send(ILoggingEvent event) {
        final BaseLogMessage logMessage = LogMessageUtil.getLogMessage(appName, env, event);
        if (logMessage instanceof RunLogMessage) {
            final String message = LogMessageUtil.getLogMessage(logMessage, event);
            PlumelogRpcClient.callRpcServer(channel, message);
        } 
    }
package com.plumelog.logback.util;
import com.plumelog.logback.rpc.PlumelogServiceGrpc;
import com.plumelog.logback.rpc.RpcClient;
import io.grpc.ManagedChannel;
public class PlumelogRpcClient {
    public static void callRpcServer(ManagedChannel channel, String message) {
        RpcClient.PlumelogRequest request = RpcClient.PlumelogRequest.newBuilder().setMessage(message).build();
        try {
            PlumelogServiceGrpc.newBlockingStub(channel).getProductStock(request);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

服务引入log在本地 maven仓库的坐标，启动即可，前提是go 服务先启动。

到此这篇关于GoLang与Java各自生成grpc代码流程介绍的文章就介绍到这了,更多相关Go生成grpc内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！

您可能感兴趣的文章:
阅读全文