FastJSON使用案例（fastjson-1.1.28.jar）

 import java.util.List;

 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.TypeReference;

 public class FastJSONHelper {

     /**
      * 将java类型的对象转换为JSON格式的字符串
      * @param object java类型的对象
      * @return JSON格式的字符串
      */
     public static <T> String serialize(T object) {
         return JSON.toJSONString(object);
     }

     /**
      * 将JSON格式的字符串转换为java类型的对象或者java数组类型的对象，不包括java集合类型
      * @param json JSON格式的字符串
      * @param clz java类型或者java数组类型，不包括java集合类型
      * @return java类型的对象或者java数组类型的对象，不包括java集合类型的对象
      */
     public static <T> T deserialize(String json, Class<T> clz) {
         return JSON.parseObject(json, clz);
     }

     /**
      * 将JSON格式的字符串转换为List<T>类型的对象
      * @param json JSON格式的字符串
      * @param clz 指定泛型集合里面的T类型
      * @return List<T>类型的对象
      */
     public static <T> List<T> deserializeList(String json, Class<T> clz) {
         return JSON.parseArray(json, clz);
     }

     /**
      * 将JSON格式的字符串转换成任意Java类型的对象
      * @param json JSON格式的字符串
      * @param type 任意Java类型
      * @return 任意Java类型的对象
      */
     public static <T> T deserializeAny(String json, TypeReference<T> type) {
         return JSON.parseObject(json, type);
     }

 }

 public class Person {
     private int Age;
     private String Name;
     public int getAge() {
         return Age;
     }
     public void setAge(int age) {
         Age = age;
     }
     public String getName() {
         return Name;
     }
     public void setName(String name) {
         Name = name;
     }
 }

 public class Program1 {

     /**
      * @param args
      */
     public static void main(String[] args) {
         // TODO Auto-generated method stub
         Person person = new Person();
         person.setAge(32);
         person.setName("wangyunpeng");
         String json = FastJSONHelper.serialize(person);
         System.out.println(json);

         person = FastJSONHelper.deserialize(json, Person.class);
         System.out.println(String.format("Name:%s,Age:%s",person.getName(),person.getAge()));
     }

 }

 import java.util.ArrayList;

 public class Program2 {

     /**
      * @param args
      */
     public static void main(String[] args) {
         // TODO Auto-generated method stub

         ArrayList<Person> list = new ArrayList<Person>();
         Person person1 = new Person();
         person1.setAge(32);
         person1.setName("wangyunpeng");
         list.add(person1);
         Person person2 = new Person();
         person2.setAge(17);
         person2.setName("shyx");
         list.add(person2);
         String json = FastJSONHelper.serialize(list);
         System.out.println(json);

         Person[] persons = FastJSONHelper.deserialize(json, Person[].class);
         for (Person person : persons) {
             System.out.println(String.format("Name:%s,Age:%s", person.getName(),person.getAge()));
         }
     }
 }

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

 public class Program3 {

     /**
      * @param args
      */
     public static void main(String[] args) {
         // TODO Auto-generated method stub
         ArrayList<Person> list = new ArrayList<Person>();
         Person person1 = new Person();
         person1.setAge(32);
         person1.setName("wangyunpeng");
         list.add(person1);
         Person person2 = new Person();
         person2.setAge(17);
         person2.setName("shyx");
         list.add(person2);
         String json = FastJSONHelper.serialize(list);
         System.out.println(json);

         List<Person> personList = FastJSONHelper.deserializeList(json, Person.class);
         for (Person person : personList) {
             System.out.println(String.format("Name:%s,Age:%s", person.getName(),person.getAge()));
         }
     }

 }

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

 public class Program4 {

     /**
      * @param args
      */
     public static void main(String[] args) {
         // TODO Auto-generated method stub
         List<String> list = new ArrayList<String>();
         list.add("wyp");
         list.add("shyx");
         String json = FastJSONHelper.serialize(list);
         System.out.println(json);
         list = FastJSONHelper.deserializeList(json, String.class);
         for (String string : list) {
             System.out.println(string);
         }
     }
 }

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

 import com.alibaba.fastjson.JSONObject;
 import com.alibaba.fastjson.TypeReference;

 public class Program5 {

     /**
      * @param args
      */
     public static void main(String[] args) {
         // TODO Auto-generated method stub
         HashMap<String, Object> map = new HashMap<String, Object>();
         map.put("key1", "value1");
         map.put("key2", "value2");

         HashMap<String, Object> map2 = new HashMap<String, Object>();
         map2.put("key1", 1);
         map2.put("key2", 2);

         HashMap<String, Object> map3 = new HashMap<String, Object>();
         Person person1 = new Person();
         person1.setAge(32);
         person1.setName("wangyunpeng");
         map3.put("wyp", person1);
         Person person2 = new Person();
         person2.setAge(17);
         person2.setName("shenyunxiao");
         map3.put("shyx", person2);

         List<HashMap<String, Object>> list = new ArrayList<HashMap<String, Object>>();
         list.add(map);
         list.add(map2);
         list.add(map3);

         String json = FastJSONHelper.serialize(list);
         System.out.println(json);

         list = FastJSONHelper.deserializeAny(json,
                 new TypeReference<List<HashMap<String, Object>>>() {
                 });
         for (HashMap<String, Object> item : list) {
             for (Map.Entry<String, Object> entry : item.entrySet()) {
                 String key = entry.getKey();
                 Object value = entry.getValue();
                 if (value instanceof JSONObject) {
                     JSONObject jObj = (JSONObject) value;
                     String json2 = FastJSONHelper.serialize(jObj);
                     Person other = FastJSONHelper.deserialize(json2, Person.class);
                     System.out.println(String.format(
                             "Key:%s,Value:[Name:%s,Age:%s]", key,
                             other.getName(), other.getAge()));
                 } else {
                     System.out.println(String.format("Key:%s,Value:%s", key,
                             value));
                 }
             }
         }

     }

 }