Java基本数据转换成Json代码

package org.nagi.json.test; import java.util.ArrayList; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import net.sf.json.JSONArray; import net.sf.json.JSONObject; import org.nagi.json.bean.Person; public class TestJson { public static void main(String[] args) { List<Person> list = new ArrayList<Person>(); list.add(new Person(0,"nagi_ho", 20,"海淀")); list.add(new Person(1, "eson_ho", 21,"朝阳")); //1.List集合转换成json代码 JSONArray jsonList = JSONArray.fromObject(list); System.out.println("1.List集合转换成json代码====>" + jsonList.toString()); //2.Map集合转换成json代码 Map map = new HashMap(); map.put("name", "json"); map.put("bool", Boolean.TRUE); map.put("int", new Integer(1)); map.put("arr", new String[] { "btbu", "b" }); map.put("func", "function(i){ return this.arr; }"); JSONObject jsonMap = JSONObject.fromObject(map); System.out.println("2.Map集合转换成json代码====>"+jsonMap.toString()); //3.Set集合转换成json代码 Set<Person> set = new HashSet<Person>(); set.add(new Person(0, "nagi_ho", 20,"信管112")); set.add(new Person(1, "eson_ho", 22,"电商112")); JSONArray jsonArray4 = JSONArray.fromObject(set); System.out.println("3.Set集合转换成json代码====>" +jsonArray4.toString()); //4.Bean转换成json代码 JSONObject jsonObject = JSONObject.fromObject(new Person(1, "信管112", 22,"btbu")); System.out.println("4.Bean转换成json代码====>"+jsonMap.toString()); //5.数组转换成json代码 boolean[] boolArray = new boolean[] { true, false, true }; String[] stringArray = new String[] {"信管111","信管112", "电商111", "电商112"}; JSONArray boolArray1 = JSONArray.fromObject(boolArray); JSONArray jsonArray2 = JSONArray.fromObject(stringArray); System.out.println("5.数组转换成json代码====>"+boolArray1.toString()); System.out.println("5.数组转换成json代码====>"+jsonArray2.toString()); //6.一般数据转换成json代码 JSONArray jsonArray3 = JSONArray.fromObject("['json','is','easy']" ); System.out.println("6.一般数据转换成json代码====>"+jsonArray3.toString()); } }