List

 package com.beijxing.TestMain;

 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;

 import com.beijxing.entity.Student;

 import net.sf.json.JSONArray;
 import net.sf.json.JSONObject;

 /**
  * List<Object>转换为JSONArray
  * @author ywp
  * @version 2016年10月23日21:36:08
  */
 public class TestJson1 {
     public static void main(String[] args) {
         createJSONArray();
     }
     public static void createJSONArray(){
         Student student = new Student();
         student.setId(1);
         student.setName("杨文培");
         student.setSex("男");
         //student.setAge(23);
         student.setBirthday("1993-01-23");
         List<String> list = new ArrayList<String>();
         list.add("篮球");
         list.add("乒乓球");
         list.add("羽毛球");
         student.setHobby(list);

         Student student2 = new Student();
         student2.setId(1);
         student2.setName("杨文培");
         student2.setSex("男");
         student.setAge(23);
         student2.setBirthday("1993-01-23");
         List<String> list2 = new ArrayList<String>();
         list2.add("篮球");
         list2.add("乒乓球");
         list2.add("羽毛球");
         student2.setHobby(list2);

         List<Student> list3 = new ArrayList<Student>();
         list3.add(student);
         list3.add(student2);
         JSONArray jsonArray = JSONArray.fromObject(list3);
         System.out.println("jsonArray="+jsonArray);

         JSONArray new_jsonArray = JSONArray.fromObject(jsonArray.toArray());
         //迭代器迭代
         Collection<JSONObject> collection = JSONArray.toCollection(new_jsonArray);
         if(collection!=null&&!collection.isEmpty()){
             Iterator<JSONObject> iterator = collection.iterator();
             while(iterator.hasNext()){
                 JSONObject jsonObject = JSONObject.fromObject(iterator.next());
                 Student student4 = (Student) jsonObject.toBean(jsonObject,Student.class);
                 System.out.println(student4);
             }
         }
         //foreach方式迭代
 /*        for (Object object : new_jsonArray) {
             JSONObject jsonObject = (JSONObject) object;
             Student student3 = (Student) jsonObject.toBean(jsonObject,Student.class);
             System.out.println(student3);
         }*/
     }
 }