JSON类库 Flexjson学习

官方地址（需翻墙）：http://flexjson.sourceforge.net/

Flexjson 是一个将 Java 对象转成 JSON 的 类库，是一个深度转换的过程。

下面是我写的一个例子：http://download.csdn.net/detail/zzhd_xingfu/5885183

Main.java

 package com.flexjson.main;

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

 import com.flexjson.model.InterestModel;
 import com.flexjson.model.TelModel;
 import com.flexjson.model.UserModel;

 public class Main {

     /**
      * @param args
      */
     public static void main(String[] args) {
         testJsonUtil();
     }

     public static void testJsonUtil() {
         // Json String to Java object
         String json1 = "{\"ims\":[{\"name\":\"篮球\"},{\"name\":\"足球\"}],\"tm\":{\"number\":\"15896352635\",\"type\":\"手机号\"},\"passWord\":\"123\",\"userName\":\"admin\"}";
         UserModel um1 = JsonUtil.getObjFromJsonStr(json1, UserModel.class);
         System.out.println(um1.toString());
         // ///////////////////////////////////////////////

         // Java object to JSON String 简单的Object
         UserModel um2 = new UserModel();
         um2.setUserName("admin");
         um2.setPassWord("123");
         System.out.println(JsonUtil.getJsonStrFromObj(um2));
         // ///////////////////////////////////////////////

         // Java object to JSON String 复杂的Object
         UserModel um3 = new UserModel();
         um3.setUserName("admin");
         um3.setPassWord("123");
         List<InterestModel> ims = new ArrayList<InterestModel>();
         InterestModel im1 = new InterestModel();
         im1.setName("篮球");
         InterestModel im2 = new InterestModel();
         im2.setName("足球");
         ims.add(im1);
         ims.add(im2);
         um3.setIms(ims);
         TelModel tm = new TelModel();
         tm.setNumber("15896352635");
         tm.setType("手机号");
         um3.setTm(tm);
         String json3 = JsonUtil.getJsonStrFromObj(um3, "ims", "tm");
         System.out.println(json3);
         // ///////////////////////////////////////////////

         // List to JSON String
         UserModel um4_1 = new UserModel();
         um4_1.setUserName("admin_1");
         um4_1.setPassWord("123_1");
         List<InterestModel> ims4_1 = new ArrayList<InterestModel>();
         InterestModel im4_1_1 = new InterestModel();
         im4_1_1.setName("篮球_1");
         InterestModel im4_1_2 = new InterestModel();
         im4_1_2.setName("足球_1");
         ims4_1.add(im4_1_1);
         ims4_1.add(im4_1_2);
         um4_1.setIms(ims4_1);
         TelModel tm4_1 = new TelModel();
         tm4_1.setNumber("15896352635_1");
         tm4_1.setType("手机号_1");
         um4_1.setTm(tm4_1);

         UserModel um4_2 = new UserModel();
         um4_2.setUserName("admin_2");
         um4_2.setPassWord("123_2");
         List<InterestModel> ims4_2 = new ArrayList<InterestModel>();
         InterestModel im4_2_1 = new InterestModel();
         im4_2_1.setName("篮球_2");
         InterestModel im4_2_2 = new InterestModel();
         im4_2_2.setName("足球_2");
         ims4_2.add(im4_2_1);
         ims4_2.add(im4_2_2);
         um4_2.setIms(ims4_2);
         TelModel tm4_2 = new TelModel();
         tm4_2.setNumber("15896352635_2");
         tm4_2.setType("手机号_2");
         um4_2.setTm(tm4_2);

         List<Object> list = new ArrayList<Object>();
         list.add(um4_1);
         list.add(um4_2);
         System.out.println(JsonUtil.getJsonStrFromList(list, "User", "ims", "tm"));
         // ///////////////////////////////////////////////

     }
 }

JsonUtil.java

 package com.flexjson.main;

 import java.util.List;

 import flexjson.JSONDeserializer;
 import flexjson.JSONSerializer;

 public class JsonUtil {

     // Java object to JSON String
     public static String getJsonStrFromObj(Object obj) {
         JSONSerializer serializer = new JSONSerializer();
         return serializer.serialize(obj);
     }

     // Java object to JSON String
     public static String getJsonStrFromObj(Object obj, String... params) {
         JSONSerializer serializer = new JSONSerializer();
         serializer = serializer.include(params);
         return serializer.serialize(obj);
     }

     // List to JSON String
     public static String getJsonStrFromList(List<Object> objs, String rootName,
             String... params) {
         JSONSerializer serializer = new JSONSerializer();
         serializer = serializer.include(params);
         serializer.rootName(rootName);
         return serializer.serialize(objs);
     }

     // Json String to Java object
     public static <T> T getObjFromJsonStr(String source, Class<T> bean) {
         return new JSONDeserializer<T>().deserialize(source, bean);
     }

 }

UserModel.java

 /**
  *
  */
 package com.flexjson.model;

 import java.util.List;

 /**
  * @author Administrator
  *
  */
 public class UserModel {
     private String userName;// 用户名
     private String passWord;// 密码
     private List<InterestModel> ims;
     private TelModel tm;

     public String getUserName() {
         return userName;
     }

     public void setUserName(String userName) {
         this.userName = userName;
     }

     public String getPassWord() {
         return passWord;
     }

     public void setPassWord(String passWord) {
         this.passWord = passWord;
     }

     public List<InterestModel> getIms() {
         return ims;
     }

     public void setIms(List<InterestModel> ims) {
         this.ims = ims;
     }

     public TelModel getTm() {
         return tm;
     }

     public void setTm(TelModel tm) {
         this.tm = tm;
     }

     @Override
     public String toString() {
         return "userName=" + userName + "; passWord=" + passWord + ";";
     }

 }

TelModel.java

 package com.flexjson.model;

 public class TelModel {
     private String number;
     private String type;

     public String getType() {
         return type;
     }

     public void setType(String type) {
         this.type = type;
     }

     public String getNumber() {
         return number;
     }

     public void setNumber(String number) {
         this.number = number;
     }

 }

InterestModel.java

 package com.flexjson.model;

 public class InterestModel {
     private String name;

     public String getName() {
         return name;
     }

     public void setName(String name) {
         this.name = name;
     }
 }