list与jSONArray互相转换

以下为list与jSONArray互相转换代码。

javaBean代码：

package com.test.json;

public class Student {

private int id;
private String name;
private String sex;
private int age;
private String[] hobby;

public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String[] getHobby() {
return hobby;
}
public void setHobby(String[] hobby) {
this.hobby = hobby;
}
}

转换测试代码：

package com.test.json;


import java.util.ArrayList;
import java.util.List;


import net.sf.json.JSONArray;


public class TestJSONObjectList {
@SuppressWarnings("unchecked")
public static void main(String[] args) throws Exception {
   Student student1 = new Student();  
   student1.setId(1);  
   student1.setName("jag");  
   student1.setSex("man");  
   student1.setAge(25);  
   student1.setHobby(new String[]{"篮球","上网","跑步","游戏"}); 
   
   Student student2 = new Student();  
   student2.setId(1);  
   student2.setName("jag");  
   student2.setSex("man");  
   student2.setAge(25);  
   student2.setHobby(new String[]{"篮球","上网","跑步","游戏"});
   List<Student> list = new ArrayList<Student>();
   list.add(student1);
   list.add(student2);
   
   // List 转 JSONArray
   JSONArray jsonMessage = JSONArray.fromObject(list);
        //输出转换后的JSON串
   System.out.println(jsonMessage.toString());
   
   List<Student> listO = (List<Student>) JSONArray.toCollection(JSONArray.fromObject(jsonMessage) , Student.class);
   
   Student student = null;
   
   for(int i = 0; i < listO.size(); i++) {
    student = listO.get(i);
    System.out.println(student.getName());
   }
} 
}