http://jingyan.baidu.com/article/c74d6000672e450f6b595d53.html

package com.json.bean;

public class Person {
	private String id ;
	private String name;
	private int age ;
	
	public Person(){
		
	}
	public Person(String id,String name,int age){
		this.id=id;
		this.name=name;
		this.age=age;
	}
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	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;
	}
	@Override
	public String toString() {
		return "解析json字符串后获取的person对象：id的值是" + id + ",name的值是" + name + ",age的值是" + age + "";
	}
	
}

@H_502_9@package com.json.fastjson; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.TypeReference; import com.json.bean.Person; /* * 这里将json的转化和解析都放在一起了，大家可以根据实际需要来转化json字符串和解析json字符串 */ public class FastjsonClass { public static void main(String[] args) { method1(); method2(); method3(); method4(); } static void method1(){ System.out.println("javabean转化示例开始----------"); Person person = new Person("1","fastjson",1); //这里将javabean转化成json字符串 String jsonString = JSON.toJSONString(person); System.out.println(jsonString); //这里将json字符串转化成javabean对象,person =JSON.parSEObject(jsonString,Person.class); System.out.println(person.toString()); System.out.println("javabean转化示例结束----------"); } static void method2(){ System.out.println("List<javabean>转化示例开始----------"); Person person1 = new Person("1","fastjson1",1); Person person2 = new Person("2","fastjson2",2); List<Person> persons = new ArrayList<Person>(); persons.add(person1); persons.add(person2); String jsonString = JSON.toJSONString(persons); System.out.println("json字符串:"+jsonString); //解析json字符串 List<Person> persons2 = JSON.parseArray(jsonString,Person.class); //输出解析后的person对象，也可以通过调试模式查看persons2的结构 System.out.println("person1对象："+persons2.get(0).toString()); System.out.println("person2对象："+persons2.get(1).toString()); System.out.println("List<javabean>转化示例结束----------"); } static void method3(){ System.out.println("List<String>转化示例开始----------"); List<String> list = new ArrayList<String>(); list.add("fastjson1"); list.add("fastjson2"); list.add("fastjson3"); String jsonString = JSON.toJSONString(list); System.out.println("json字符串:"+jsonString); //解析json字符串 List<String> list2 = JSON.parSEObject(jsonString,new TypeReference<List<String>>(){}); System.out.println(list2.get(0)+"::"+list2.get(1)+"::"+list2.get(2)); System.out.println("List<String>转化示例结束----------"); } static void method4(){ System.out.println(" List<Map<String,Object>>转化示例开始 ----------"); Map<String,Object> map = new HashMap<String,Object>(); map.put("key1","value1"); map.put("key2","value2"); Map<String,Object> map2 = new HashMap<String,Object>(); map2.put("key1",1); map2.put("key2",2); List<Map<String,Object>> list = new ArrayList<Map<String,Object>>(); list.add(map); list.add(map2); String jsonString = JSON.toJSONString(list); System.out.println("json字符串:"+jsonString); //解析json字符串 List<Map<String,Object>> list2 = JSON.parSEObject(jsonString,new TypeReference<List<Map<String,Object>>>(){}); System.out.println("map的key1值"+list2.get(0).get("key1")); System.out.println("map的key2值"+list2.get(0).get("key2")); System.out.println("ma2p的key1值"+list2.get(1).get("key1")); System.out.println("map2的key2值"+list2.get(1).get("key2")); } }

http://www.csdn.net/article/2014-09-25/2821866#rd