Java的Json解析包FastJson使用

package com.test;

public class TestPerson {
	private int age;
	private String name;
	
	public TestPerson(){
		
	}
	
	public TestPerson(int age,String name){
		this.age=age;
		this.name=name;
	}
	
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
}



package com.test;
import java.util.*;

import com.alibaba.fastjson.*;

public final class TestFastJson {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		TestPerson json = new TestPerson(19,"李明");
		List<TestPerson> list = new ArrayList<TestPerson>();
		list.add(json);
		list.add(new TestPerson(12,"张三"));
		//将集合或者对象序例化成JSON
		System.out.println(JSON.toJSON(json));
		System.out.println( JSON.toJSON(list) );
		//Json串反序列化成对象
		TestPerson person = JSON.parseObject("{\"name\":\"李明\",\"age\":19}", TestPerson.class);
		System.out.printf("name:%s,age:%d\n",person.getName(),person.getAge());
		
		String str = "[{\"name\":\"李明\",\"age\":19},{\"name\":\"张三\",\"age\":12}]";
		//数组对象反序列化成集合
		List<TestPerson> listPerson = JSON.parseArray(str,TestPerson.class);
		
		for(TestPerson item : listPerson){
			System.out.println( item.getName() );
			System.out.println( item.getAge());
		}
		
		//没有对象直接解析JSON对象
		JSONObject jobj = JSON.parseObject("{\"name\":\"李明\",\"age\":19}");
		System.out.printf("name:%s,age:%d\n",jobj.getString("name"),jobj.getBigInteger("age"));
		
		//没有对象直接解析JSON数组
		JSONArray jarr = JSON.parseArray("[{\"name\":\"李明\",\"age\":19},{\"name\":\"张三\",\"age\":12}]");
		
		for(int i=0,len=jarr.size();i<len;i++){
			JSONObject temp=  jarr.getJSONObject(i);
			System.out.printf("name:%s,age:%d\n",temp.getString("name"),temp.getBigInteger("age"));
		}
		
		for(Object obj:jarr){
			System.out.println(obj.toString());
		}
		
	}

}