使用fastJson 来解析 json

FastJson 是阿里巴巴出的，据说是速度最快的。

java类

 1 package com.android.domain;
 2 
 3 public class Person {
 4 
 5     private String name;
 6     private int age;
 7     private String address;
 8 
 9     public String getName() {
10         return name;
11     }
12 
13     public Person(String name, int age, String address) {
14         super();
15         this.name = name;
16         this.age = age;
17         this.address = address;
18     }
19 
20     @Override
21     public String toString() {
22         return "Person [name=" + name + ", age=" + age + ", address=" + address
23                 + "]";
24     }
25 
26     public void setName(String name) {
27         this.name = name;
28     }
29 
30     public int getAge() {
31         return age;
32     }
33 
34     public void setAge(int age) {
35         this.age = age;
36     }
37 
38     public String getAddress() {
39         return address;
40     }
41 
42     public void setAddress(String address) {
43         this.address = address;
44     }
45 
46     public Person() {
47         // TODO Auto-generated constructor stub
48     }
49 
50 }

 

执行类：

 1 package com.android.myfastjson;
 2 
 3 import java.util.ArrayList;
 4 import java.util.HashMap;
 5 import java.util.List;
 6 import java.util.Map;
 7 
 8 import com.alibaba.fastjson.JSON;
 9 import com.alibaba.fastjson.TypeReference;
10 import com.alibaba.fastjson.asm.Type;
11 import com.alibaba.fastjson.util.TypeUtils;
12 
13 public class FastJsonTools {
14 
15     public FastJsonTools() {
16         // TODO Auto-generated constructor stub
17     }
18 
19     public static String createJsonString(Object object) {
20         String jsonString = JSON.toJSONString(object);
21         return jsonString;
22     }
23 
24     public static <T> T createJsonBean(String jsonString, Class<T> cls) {
25         T t = JSON.parseObject(jsonString, cls);
26         return t;
27     }
28 
29     public static <T> List<T> createJsonToListBean(String jsonString,
30             Class<T> cls) {
31         List<T> list = null;
32         list = JSON.parseArray(jsonString, cls);
33         return list;
34     }
35 
36     /**
37      * @param jsonString
38      * @return
39      */
40     public static List<Map<String, Object>> createJsonToListMap(
41             String jsonString) {
42         List<Map<String, Object>> list2 = JSON.parseObject(jsonString,
43                 new TypeReference<List<Map<String, Object>>>() {
44                 });
45         return list2;
46     }
47 
48     /**
49      * @param args
50      */
51     public static void main(String[] args) {
52         // TODO Auto-generated method stub
53         // Person person1 = new Person("张三1", 24, "北京1");
54         // Person person2 = new Person("张三2", 23, "北京2");
55         // List<Person> list = new ArrayList<Person>();
56         // list.add(person1);
57         // list.add(person2);
58         List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
59         Map<String, Object> map = new HashMap<String, Object>();
60         map.put("name", "jack");
61         map.put("age", 23);
62         Map<String, Object> map2 = new HashMap<String, Object>();
63         map2.put("name", "rose");
64         map2.put("age", 24);
65         list.add(map);
66         list.add(map2);
67 
68         String jsonString = JSON.toJSONString(list);
69         System.out.println(jsonString);
70         // JSON.parseArray(arg0, arg1)
71         List<Map<String, Object>> list2 = JSON.parseObject(jsonString,
72                 new TypeReference<List<Map<String, Object>>>() {
73                 });
74         // List<Person> lists = JSON.parseArray(arg0, arg1);
75         System.out.println(list2.toString());
76 
77     }
78 
79 }

输出：

[{"age":23,"name":"jack"},{"age":24,"name":"rose"}]

[{name=jack, age=23}, {name=rose, age=24}]

posted @ 2014-03-27 18:37  aosting  阅读(576)  评论(0)  编辑  收藏  举报