|
protobuff和json广泛应用应用于通信和存储上,2种方式使用那种各有各的特定。protobuff序列化比json快,体积也比json的序列化小 (json耗在属性名,属性越多明显),在性能和内容大小上有要求的选protobuff相对优,但protobuff要定义proto文件,有沟通成本,而且状态也有顺序,修改老版本的proto要遵循一定的规则,而json就比较通用修改也没有那么多规则。
简单的例子对比protobuff和json(fastjson)序列化速度和序列化后的体制大小:
proto文件:
syntax = "proto3";
package com.test1;
option java_package = "com.test1";
option java_multiple_files = true;
message UserInfo{
string userId = 1; //userId
string url = 2; //头像
string name = 3; //名字
int32 sex = 4; //玩家性别
}UserVO:
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
@Data
@Builder
@AllArgsConstructor
public class UserVo {
private String userId;
private String url;
private String name;
private int sex;
}
Main:
import java.nio.charset.Charset;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.parser.Feature;
import com.alibaba.fastjson.parser.ParserConfig;
import com.alibaba.fastjson.serializer.SerializeConfig;
import com.alibaba.fastjson.serializer.SerializeFilter;
import com.alibaba.fastjson.serializer.SerializerFeature;
import lombok.SneakyThrows;
public class ProtoBuffVsJson {
@SneakyThrows
public static void main(String[] args) {
String uid = "testProtoBuffVsJson";
String url = "https://www.baidu.com";
String name = "testProtoBuffVsJson";
int sex = 1;
Charset charset = Charset.forName("UTF-8");
SerializeConfig serializeConfig = SerializeConfig.getGlobalInstance();
ParserConfig parserConfig = ParserConfig.getGlobalInstance();
SerializerFeature[] serializerFeatures = new SerializerFeature[]{SerializerFeature.BrowserSecure};;
SerializeFilter[] serializeFilters = new SerializeFilter[0];;
Feature[] features = new Feature[0];
UserVo uservo = UserVo.builder().userId(uid).url(url).name(name).sex(sex).build();
UserInfo userInfo = UserInfo.newBuilder().setUserId(uid).setUrl(url).setName(name).setSex(sex).build();
long voEStartTime = System.nanoTime();
byte[] voBytes = JSON.toJSONBytes(charset, uservo, serializeConfig, serializeFilters, null,
JSON.DEFAULT_GENERATE_FEATURE, serializerFeatures);
long voEEndTime = System.nanoTime();
long protoEStartTime = System.nanoTime();
byte[] protoBytes = userInfo.toByteArray();
long protoEEndTime = System.nanoTime();
long voDStartTime = System.nanoTime();
uservo = JSON.parseObject(voBytes, charset, UserVo.class, parserConfig, null,
JSON.DEFAULT_PARSER_FEATURE, features);
long voDEndTime = System.nanoTime();
long protoDStartTime = System.nanoTime();
userInfo = UserInfo.parseFrom(protoBytes);
long protoDEndTime = System.nanoTime();
System.out.println("json 序列化时间:" + (voEEndTime - voEStartTime)
+ "ns 反序列化时间:" + (voDEndTime - voDStartTime)
+ "ns byte数组长度:" + voBytes.length);
System.out.println("proto 序列化时间:" + (protoEEndTime - protoEStartTime)
+ "ns 反序列化时间:" + (protoDEndTime - protoDStartTime)
+ "ns byte数组长度:" + protoBytes.length);
}
}输出结果:
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有账号?立即注册
×
|