Android编程解析Json格式数据的方法

本文实例讲述了android编程解析json格式数据的方法。分享给大家供大家参考，具体如下：

package com.practice.json;
import org.json.jsonarray;
import org.json.jsonexception;
import org.json.jsonobject;
import android.app.activity;
import android.os.bundle;
import android.util.log;
public class jsondemo extends activity {
 /*
  * 解析json的例子，str保存的是json代码，解析后的数据在logcat里输出 
 */
 string tag = "json message";
 @override
 public void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.main);
  detectjson();
 }
 private void detectjson() {
  string str = "{"+
   "\"日期\" : \"2011-06-06\","+
   //like 是 jsonobject
   "\"like\" : {"+
   "\"name\" : \"加内特\","+
   "\"height\" : \"2.11cm\","+ 
   "\"age\" : 35"+
   "},"+
   //likelist 就是一个 jsonobject
   "\"likelist\":" +
    "{\"list\": " +
    "["+
     //这里也是jsonobject
     "{"+
     "\"name\" : \"rose\","+
     "\"height\" : \"190cm\","+ 
     "\"age\" : 23"+
     "},"+
     //这里也是jsonobject
     "{"+
     "\"name\" : \"科比\","+
     "\"height\" : \"198cm\","+ 
     "\"age\" : 33"+
     "}"+
    "]"+
    "}"+
   "}";
  try {
   jsonobject datajson = new jsonobject(str);
   log.d(tag, datajson.getstring("日期"));
   jsonobject nbajson = datajson.getjsonobject("like");
   log.d(tag, nbajson.getstring("name"));
   log.d(tag, nbajson.getstring("height"));
   log.d(tag, nbajson.get("age").tostring());
   jsonobject listjson = datajson.getjsonobject("likelist");
   jsonarray arrayjson = listjson.getjsonarray("list");
   for(int i=0;i<arrayjson.length();i++) {
    jsonobject tempjson = arrayjson.optjsonobject(i);
    log.d(tag, tempjson.getstring("name"));
    log.d(tag, tempjson.getstring("height"));
    log.d(tag, tempjson.getstring("age").tostring()); 
   }
  } catch (jsonexception e) {
   system.out.println("something wrong...");
   e.printstacktrace();
  }
 }
}

希望本文所述对大家android程序设计有所帮助。