windows下protobuf生成java类

1、官网下载protobuf：https://github.com/protocolbuffers/protobuf/releases/tag/v3.14.0，如下图，下载对应系统的版本即可：

2、解压

3、配置环境变量

4、进入到解压目录，执行如下命令，确认安装成功：protoc --version

5、编写applicationContext.proto文件，如下所示示例：

syntax = "proto3";
option java_package = "com.ls.commons.bean";
option java_outer_classname = "ApplicationContextProtobuf";

message ApplicationContext {

     string contextType = 1;

     message ClientDetails {
          string clientId = 1;
          repeated string scope = 2;
          string grantType = 3;
          string sessionId = 4;
          string tokenValue = 5;
          string remoteAddress = 6;
          string decodedDetails = 7;
          string productLineId = 8;
          string tenantId = 9;
     }
     ClientDetails clientDetails = 2;

     message MiUserDetails {
          int64 uid = 1;
          string userId = 2;
          string nickname = 3;
          string userType = 4;
          string username = 5;
          string authType = 6;
          string productLineId = 7;
          string tenantId = 8;
          string appId = 9;
          string appType = 10;
          string systemType = 11;
          string imei = 12;
     }
     MiUserDetails miUserDetails = 3;

     message OcUserDetails {
          string userId = 1;
          string nickname = 2;
          string userType = 3;
          string username = 4;
          string authType = 5;
          string productLineId = 6;
          string tenantId = 7;
          string appType = 8;
          string systemType = 9;
     }
     OcUserDetails ocUserDetails = 4;

     message DeviceDetails {
          string username = 1;
          string authType = 2;
          string productLineId = 3;
          string arn = 4;
          string sn = 5;
          string endpoint = 6;
          string productId = 7;
          string deviceName = 8;
          string state = 9;
          string area = 10;
          string tenantId = 11;
     }
     DeviceDetails deviceDetails = 5;

     message OpenDetails {
          string userId = 1;
          string username = 2;
          string authType = 3;
          string productId = 4;
          string productLineId = 5;
          string tenantId = 6;
          string uniqueId = 7;
          string vsn = 8;
          string sn = 9;
          string deviceName = 10;
          string endpoint = 11;
          string arn = 12;
          string state = 13;
          string area = 14;
          string appId = 15;
          string appType = 16;
          string systemType = 17;
          string imei = 18;
          string brandId = 19;
          string manufacturerCode = 20;
     }
     OpenDetails openDetails = 6;

}

6、执行命令：protoc.exe -I=./ --java_out=./ applicationContext.proto，生成java文件