Protobuffer生成java類

protobuffer文件


package tutorial;

option java_package = "com.example.tutorial";
option java_outer_classname = "AddressBookProtos";

message Person {
  required string name = 1;
  required int32 id = 2;
  optional string email = 3;

  enum PhoneType {
    MOBILE = 0;
    HOME = 1;
    WORK = 2;
  }

  message PhoneNumber {
    required string number = 1;
    optional PhoneType type = 2 [default = HOME];
  }

  repeated PhoneNumber phone = 4;
}

message AddressBook {
  repeated Person person = 1;
}


windows環境里下載protoc.exe
https://developers.google.com/protocol-buffers/docs/downloads


在PersonMsg.proto的文件夾內執行命令：
protoc.exe --java_out=E:\java PersonMsg.proto


如果一個proto文件太大，生成的類代碼太多，一個java文件存不下，可以在proto文件里添加

option java_multiple_files = true;

這樣，一個proto文件會生成多個java文件



相關鏈接：
https://github.com/google/protobuf/releases?after=v3.0.0-alpha-4.1
https://github.com/google/protobuf/tree/master/java