Gson這個Java類庫可以把Java對象轉換成JSON,也可以把JSON字符串轉換成一個相等的Java對象。Gson支持任意復雜Java對象包括沒有源代碼的對象。
代碼例子
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.test.json;
import com.google.gson.Gson;
/**
*
* @author ann
*/
public class JsonConverter {
public void toPerson(){
String json = "{'data1':100,'data2':'hello','id':1}";
Gson gson = new Gson();
Person p = gson.fromJson(json, Person.class);
System.out.println(" p :" +p.getId());
System.out.println("p:"+p.getName());
}
public void toJsonString(){
Person p = new Person();
p.setId(1);
Gson gson = new Gson();
String s = gson.toJson(p,Person.class);
System.out.println("s"+s);
}
public static void main(String[] args) {
JsonConverter convert = new JsonConverter();
convert.toPerson();
//convert.toJsonString();
}
}
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.test.json;
/**
*
* @author ann
*/
public class Person {
private int id;
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
下載http://code.google.com/p/google-gson/
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.test.json;
import com.google.gson.Gson;
/**
*
* @author ann
*/
public class JsonConverter {
public void toPerson(){
String json = "{'data1':100,'data2':'hello','id':1}";
Gson gson = new Gson();
Person p = gson.fromJson(json, Person.class);
System.out.println(" p :" +p.getId());
System.out.println("p:"+p.getName());
}
public void toJsonString(){
Person p = new Person();
p.setId(1);
Gson gson = new Gson();
String s = gson.toJson(p,Person.class);
System.out.println("s"+s);
}
public static void main(String[] args) {
JsonConverter convert = new JsonConverter();
convert.toPerson();
//convert.toJsonString();
}
}
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.test.json;
/**
*
* @author ann
*/
public class Person {
private int id;
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
下載http://code.google.com/p/google-gson/