最近用到Json来传输数据，找到两个比较简单的工具 Gson 和 FastJson
随便测试一下两个工具的效率~
1 package com.json.fast;
2
3 import java.util.ArrayList;
4 import java.util.List;
5
6 import com.alibaba.fastjson.JSON;
7 import com.demo.module.Student;
8 import com.google.gson.Gson;
9 import com.google.gson.reflect.TypeToken;
10
11
12 public class FastJson {
13 public static void main(String[] args) {
14
15
16 List<Student> list=new ArrayList<Student>();
17
18 for (int i = 0; i < 500000; i++) {
19 Student student=new Student();
20 student.setId(i);
21 student.setName("Name"+i);
22 student.setAge(i);
23 student.setSex("boy");
24
25 list.add(student);
26 }
27
28 String json=JSON.toJSONString(list);
29 for (int i = 0; i < 10; i++) {
30 long time_start = System.currentTimeMillis();
31 JSON.toJSONString(list);
32 long time_end = System.currentTimeMillis();
33 System.out.println("FastJson to JSON 用时："+(time_end-time_start));
34 }
35 System.out.println();
36 for (int i = 0; i < 10; i++) {
37 long time_start = System.currentTimeMillis();
38 JSON.parseArray(json, Student.class);
39 long time_end = System.currentTimeMillis();
40 System.out.println("FastJson to List 用时："+(time_end-time_start));
41 }
42 System.out.println();
43
44 Gson gson=new Gson();
45 for (int i = 0; i < 10; i++) {
46 long time_startg = System.currentTimeMillis();
47 gson.toJson(list);
48 long time_endg = System.currentTimeMillis();
49 System.out.println("Gson to JSON 用时："+(time_endg-time_startg));
50 }
51 System.out.println();
52 for (int i = 0; i < 10; i++) {
53 long time_startg = System.currentTimeMillis();
54 gson.fromJson(json,new TypeToken<List<Student>>(){}.getType());
55 long time_endg = System.currentTimeMillis();
56 System.out.println("Gson to List 用时："+(time_endg-time_startg));
57 }
58 }
59 }
LIST to JSON 用时比较
FastJson to JSON 用时：1188
FastJson to JSON 用时：1034
FastJson to JSON 用时：1201
FastJson to JSON 用时：1450
FastJson to JSON 用时：712
FastJson to JSON 用时：1156
FastJson to JSON 用时：695
FastJson to JSON 用时：1142
FastJson to JSON 用时：680
FastJson to JSON 用时：1206
Gson to JSON 用时：1079
Gson to JSON 用时：1108
Gson to JSON 用时：905
Gson to JSON 用时：1097
Gson to JSON 用时：903
Gson to JSON 用时：1056
Gson to JSON 用时：905
Gson to JSON 用时：903
Gson to JSON 用时：1113
Gson to JSON 用时：897
JSON to LIST 用时比较
FastJson to List 用时：351
FastJson to List 用时：222
FastJson to List 用时：189
FastJson to List 用时：177
FastJson to List 用时：281
FastJson to List 用时：349
FastJson to List 用时：258
FastJson to List 用时：226
FastJson to List 用时：213
FastJson to List 用时：201
Gson to List 用时：1305
Gson to List 用时：745
Gson to List 用时：790
Gson to List 用时：864
Gson to List 用时：886
Gson to List 用时：1168
Gson to List 用时：907
Gson to List 用时：796
Gson to List 用时：914
Gson to List 用时：1206
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1 package com.demo.module;
2
3 public class Student {
4 private int id;
5 private String name;
6 private int age;
7 private String sex;
8
9 public int getId() {
10 return id;
11 }
12 public void setId(int id) {
13 this.id = id;
14 }
15 public String getName() {
16 return name;
17 }
18 public void setName(String name) {
19 this.name = name;
20 }
21 public int getAge() {
22 return age;
23 }
24 public void setAge(int age) {
25 this.age = age;
26 }
27 public String getSex() {
28 return sex;
29 }
30 public void setSex(String sex) {
31 this.sex = sex;
32 }
33
34 }
View Code