protobuf转换方法

1. 编写protobuf代码如下：

package netty;option java_package = "com.clq.netty.protoc";option java_outer_classname = "SubsribeReqProto";message SubScribeReq{    required int32 subReqID = 1;    required string userName = 2;    required string productName = 3;    repeated string address = 4;}

package netty;option java_package = "com.clq.netty.protoc";option java_outer_classname = "SubsribeRespProto";message SubScribeResp{    required int32 subReqID = 1;    required string respCode = 2;    required string desc = 3;}

2 . 执行如下命令(首先下载proto.exe 地址：)：

E:\tmp\protoc-2.5.0-win32> ./protoc.exe --java_out=./ SubscribeReq.protoE:\tmp\protoc-2.5.0-win32> ./protoc.exe --java_out=./ SubscribeResp.proto

3 . 拷贝生成代码到IDE编辑器，下载地址见： 如果报错，则添加protobuf-java

                
     
      com.google.protobuf
                 
     
      protobuf-java
                 
     
      2.5.0
             
    

4 . 执行测试protobuf测试

package com.clq.netty.protoc;import com.google.protobuf.InvalidProtocolBufferException;import java.util.ArrayList;import java.util.List;/** * Created by clq on 2018/7/24. */public class TestSubsribeReqProto {    private static byte[] encode(SubsribeReqProto.SubScribeReq req) {        return req.toByteArray();    }    private static SubsribeReqProto.SubScribeReq decode(byte[] body) throws InvalidProtocolBufferException {        return SubsribeReqProto.SubScribeReq.parseFrom(body);    }    private static SubsribeReqProto.SubScribeReq createSubScripeReq() {        SubsribeReqProto.SubScribeReq.Builder builder = SubsribeReqProto.SubScribeReq.newBuilder();        builder.setSubReqID(1);        builder.setUserName("clq");        builder.setProductName("xxxx usb key");        List
    
      address = new ArrayList<>();        address.add("河南郑州");        address.add("河南洛阳");        builder.addAllAddress(address);        return builder.build();    }    public static void main(String[] args) {        SubsribeReqProto.SubScribeReq subScripeReq = createSubScripeReq();        System.out.println("Before encode:" + subScripeReq.toString());        SubsribeReqProto.SubScribeReq subScripeReq1 = createSubScripeReq();        System.out.println("After encode:" + subScripeReq1);        System.out.println("Assert equ:" + subScripeReq1.equals(subScripeReq));    }}
    

5 . 打印结果

Before encode:subReqID: 1userName: "clq"productName: "xxxx usb key"address: "\346\262\263\345\215\227\351\203\221\345\267\236"address: "\346\262\263\345\215\227\346\264\233\351\230\263"After encode:subReqID: 1userName: "clq"productName: "xxxx usb key"address: "\346\262\263\345\215\227\351\203\221\345\267\236"address: "\346\262\263\345\215\227\346\264\233\351\230\263"Assert equ:true