package no.integrasco.ingentia.news.qaedition;

public class Person {

    private String name;

    private int age;

    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;

    }

}

 

package no.integrasco.ingentia.news.qaedition;

import java.util.List;

import net.sf.json.JSONArray;

import net.sf.json.JsonConfig;

public class JsonTest {

    /**

     * @param args

     */

    public static void main(String[] args) {

        // 转换方法1

        JSONArray array = JSONArray.fromObject("[{'name':'hehe','age':22}]");

        List<Person> list = JSONArray.toList(array, Person.class);// 过时方法

        System.out.println(list.get(0).getName());

        // 转换方法2

        List<?> list2 = JSONArray.toList(array, new Person(), new JsonConfig());//参数1为要转换的JSONArray数据，参数2为要转换的目标数据，即List盛装的数据

        Person person = (Person) list2.get(0);

        System.out.println(person.getAge());

    }

}

 

从页面接收json格式的数据，在java类里面进行解析

String jsonStr = {"name":"zfj","dd":[{"ddr":"1","encrypt":"2","ff":"1","length":"23","ffe":"editStyled","ill":"1","pkor":"2","name":"zfj","isKey":"2","alias":"ffff"}],"addRelations":[{"type":"2","ld":"zfj","ld":"2"}]}; 

将此字符串放在ruquest或者其他的变量里面，传递到后台。 

如放在reques中： 

request.getRequestDispatcher("/geServlet?data="+jsonStr).forward(request,response); 

在servlet或java类里这样接收： 

String json = request.ge[size=large][/size]tParameter("data"); 

JSONObject jsonObject = JSONObject.fromObject(data); 

String name = jsonObject.getString（“name”）； 

...... 

//对于数组这样接收用 

JSONArray jan = (JSONArray) jsonObject.get("dd"); 

if(jan!=null||jan.size()!=0){ 

for(int i=0;i<ja.size();i++){ 

JSONObject jo = JSONObject.fromObject(ja.get(i)); 

String ff = jo.getString("ff"); 

                 ...... 

} 

}