google protocol buffer的使用

下载protocol buffer代码

1、打开根目录下的README.txt，编译、安装

2、进入java目录，mvn install生成jar包

3、定义.proto文件，idl文件，如下所示：

package tutorial;

option java_package = "com.android.contacts.model";
option java_outer_classname = "PersonProtos";

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

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

  message PhoneNumber {
    required string number = 1;
    optional PhoneType type = 2 [default = HOME];
    required string area = 3;
  }

  repeated PhoneNumber phone = 4;
}

上面的phone为List<PhoneNumber>

4、编译：protoc -I=/home/jiangsai/04.sourcecode/protocolbuffer --java_out=/home/jiangsai/04.sourcecode/protocolbuffer/src/ /home/jiangsai/04.sourcecode/protocolbuffer/person.proto

5、将jar包和生成的源代码添加至工程中