java中得到json格式的数据

package testPackage;

import java.util.ArrayList;
import java.util.List;
import net.sf.json.JSONArray;

public class TestJson {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        List<Student> sList = new ArrayList<Student>();
        sList.add(new Student("张三",23));
        sList.add(new Student("李四",15));
        sList.add(new Student("王五",45));
        sList.add(new Student("赵六",34));
        
        System.out.println(JSONArray.fromObject(sList).toString());
    }
}

package testPackage;
public class Student{
    private String name;
    private int age;
    
    public Student() {
        super();
        // TODO Auto-generated constructor stub
    }
    public Student(String name, int age) {
        super();
        this.name = name;
        this.age = age;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
}