win10下Maven安装与配置利用java在IDEA下实现gRPC通信

一、Maven的下载安装与配置

1.下载网址 http://maven.apache.org/download.cgi

选择下载二进制压缩归档文件解压到任意目录下

2.配置环境变量

在系统变量新建两个变量M2_HOME和MAVEN_HOME，值为安装路径

编辑系统变量PATH，添加%M2_HOME%\bin

3.验证
命令行 mvn -v

4.配置settings.xml

增加本地仓库

在被注释掉的localRepository位置下一行增加

自定义本地仓库路径（例：D:\software\gogogo）

配置阿里镜像仓库在被注释掉的mirror下增加


    
     
        aliyun-public
        *
        aliyun public
        https://maven.aliyun.com/repository/public
    

    
        aliyun-central
        *
        aliyun central
        https://maven.aliyun.com/repository/central
    

    
        aliyun-spring
        *
        aliyun spring
        https://maven.aliyun.com/repository/spring
    

    
        aliyun-spring-plugin
        *
        aliyun spring-plugin
        https://maven.aliyun.com/repository/spring-plugin
    

    
        aliyun-apache-snapshots
        *
        aliyun apache-snapshots
        https://maven.aliyun.com/repository/apache-snapshots
    

    
        aliyun-google
        *
        aliyun google
        https://maven.aliyun.com/repository/google
    

    
        aliyun-gradle-plugin
        *
        aliyun gradle-plugin
        https://maven.aliyun.com/repository/gradle-plugin
    

    
        aliyun-jcenter
        *
        aliyun jcenter
        https://maven.aliyun.com/repository/jcenter
    

    
        aliyun-releases
        *
        aliyun releases
        https://maven.aliyun.com/repository/releases
    

    
        aliyun-snapshots
        *
        aliyun snapshots
        https://maven.aliyun.com/repository/snapshots
    

    
        aliyun-grails-core
        *
        aliyun grails-core
        https://maven.aliyun.com/repository/grails-core
    

    
        aliyun-mapr-public
        *
        aliyun mapr-public
        https://maven.aliyun.com/repository/mapr-public

二、配置IDEA

在File-Settings-Build,Execution,Development-Maven下

Maven home path :Maven解压路径

User Setting file：打开到刚刚修改的settings.xml文件

Local repository：本地仓库地址修改完上一步后这一条一般会默认出现

三、创建Maven项目工程

File-New-Project

配置pom.xml文件，导入gRPC的依赖和插件



    4.0.0

    com.wly
    HelloWorld-gRPC-java

    1.0-SNAPSHOT

    
    
        com.google.protobuf
            protobuf-java
            3.8.0
        
        
            io.grpc
            grpc-all
            1.14.0
        
        
            io.grpc
            grpc-netty-shaded
            1.14.0
        
        
            io.grpc
            grpc-protobuf
            1.14.0
        
        
            io.grpc
            grpc-stub
            1.26.0
        

    

    
        compile
        
            
                kr.motd.maven
                os-maven-plugin
                1.5.0.Final
            
        
        
            
                org.apache.maven.plugins
                maven-compiler-plugin
                 3.6.1
                    
                        1.6
                        1.6
                    
                
            
                org.xolstice.maven.plugins
                protobuf-maven-plugin
                0.5.1

               
                
                    com.wly.gRpc_helloworld.HelloWorld_Client.main
                    com.google.protobuf:protoc:3.5.1-1:exe:${os.detected.classifier}
                    grpc-java
                    io.grpc:protoc-gen-grpc-java:1.36.0:exe:${os.detected.classifier}
                
                
                    
                        

                            compile-custom
                            compile

引入.proto文件

在main文件夹下，新建proto文件夹在建好的proto文件夹下创建 helloworld.proto文件增加内容

// Copyright 2015 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

option java_multiple_files = true;
option java_package = "io.grpc.examples.helloworld";
option java_outer_classname = "HelloWorldProto";
option objc_class_prefix = "HLW";

package helloworld;

// The greeting service definition.
service Greeter {
  // Sends a greeting
  rpc SayHello (HelloRequest) returns (HelloReply) {}
}

// The request message containing the user's name.
message HelloRequest {
  string name = 1;
}

// The response message containing the greetings
message HelloReply {
  string message = 1;
}

右击Maven.Projects\protobuf\protobuf:compile ，选择run，生成用于序列化的java文件。
再右击Maven.Projects\protobuf\protobuf:compile-custom，选择run，生成用于rpc的java代码。

可能出现的问题

解决方法：

Alt+Enter:选择Add Javaee 6 JARs to Module dependencies，下载相应的包

编写客户端和服务端代码

服务端代码：HelloWorld_Server.java

package com.wly.gRpc_helloworld;

import io.grpc.Server;
import io.grpc.ServerBuilder;
import io.grpc.examples.helloworld.GreeterGrpc;
import io.grpc.examples.helloworld.HelloReply;
import io.grpc.examples.helloworld.HelloRequest;
import io.grpc.stub.StreamObserver;

import java.io.IOException;
import java.util.logging.Logger;


public class HelloWorld_Server {
    private static final Logger logger = Logger.getLogger(HelloWorld_Server.class.getName());


    private int port = 50051;
    private Server server;

    private void start() throws IOException{
        server = ServerBuilder.forPort(port)
                .addService(new GreeterImpl())
                .build()
                .start();
        logger.info("Server started, listening on "+ port);

        Runtime.getRuntime().addShutdownHook(new Thread(){

            @Override
            public void run(){

                System.err.println("*** shutting down gRPC server since JVM is shutting down");
                HelloWorld_Server.this.stop();
                System.err.println("*** server shut down");
            }
        });
    }

    private void stop(){
        if (server != null){
            server.shutdown();
        }
    }

    // block 一直到退出程序
    private void blockUntilShutdown() throws InterruptedException {
        if (server != null){
            server.awaitTermination();
        }
    }


    public  static  void main(String[] args) throws IOException, InterruptedException {

        final HelloWorld_Server server = new HelloWorld_Server();
        server.start();
        server.blockUntilShutdown();
    }


    // 实现 定义一个实现服务接口的类
    private class GreeterImpl extends GreeterGrpc.GreeterImplBase {

        @Override
        public void sayHello(HelloRequest req,StreamObserver responseObserver){
           // HelloReply reply = HelloReply.newBuilder().setMessage(("{\"order\":\"1000\",\"operator\":\"China\",\"function\":\"start\"} "+req.getName())).build();
            HelloReply reply = HelloReply.newBuilder().setMessage(("Hello "+req.getName())).build();
            responseObserver.onNext(reply);
            responseObserver.onCompleted();
            System.out.println("Message from gRPC-Client:" + req.getName());
        }
    }
}

客户端代码： HelloWorld_Client.java

package com.wly.gRpc_helloworld;

import io.grpc.ManagedChannel;
import io.grpc.ManagedChannelBuilder;
import io.grpc.StatusRuntimeException;
import io.grpc.examples.helloworld.GreeterGrpc;
import io.grpc.examples.helloworld.HelloReply;
import io.grpc.examples.helloworld.HelloRequest;

import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;


public class HelloWorld_Client {
    private final ManagedChannel channel;
    private final GreeterGrpc.GreeterBlockingStub blockingStub;
    private static final Logger logger = Logger.getLogger(HelloWorld_Client.class.getName());

    public HelloWorld_Client(String host,int port){
        channel = ManagedChannelBuilder.forAddress(host,port)
                .usePlaintext(true)
                .build();

        blockingStub = GreeterGrpc.newBlockingStub(channel);
    }


    public void shutdown() throws InterruptedException {
        channel.shutdown().awaitTermination(5, TimeUnit.SECONDS);
    }

    public  void greet(String name){
        HelloRequest request = HelloRequest.newBuilder().setName(name).build();
        HelloReply response;
        try{
            response = blockingStub.sayHello(request);
        } catch (StatusRuntimeException e)
        {
            logger.log(Level.WARNING, "RPC failed: {0}", e.getStatus());
            return;
        }
        logger.info("Message from gRPC-Server: "+response.getMessage());
    }

    public static void main(String[] args) throws InterruptedException {
       // HelloWorld_Client client = new HelloWorld_Client("192.168.2.122",9002);
       HelloWorld_Client client = new HelloWorld_Client("127.0.0.1",50051);
 
        try{
            String user = "world";
            if (args.length > 0){
                user = args[0];
            }
            client.greet(user);
        }finally {
            client.shutdown();
        }
    }
}

运行

先运行HelloWorld_Server.java，再运行HelloWorld_Client.java

得到下图所示结果证明通信成功

win10下Maven安装与配置 利用java在IDEA下实现gRPC通信

你可能感兴趣的:(win10下Maven安装与配置 利用java在IDEA下实现gRPC通信)

win10下Maven安装与配置利用java在IDEA下实现gRPC通信

你可能感兴趣的:(win10下Maven安装与配置利用java在IDEA下实现gRPC通信)