//android
public class GoWinHttp { //通过post获得数据 public static String postHttpData(String url,List<NameValuePair> nameValuePairs) { String resultStr=null; HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost(url); try { httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); HttpResponse response; response=httpclient.execute(httppost); resultStr=EntityUtils.toString(response.getEntity()); } catch (UnsupportedEncodingException e) { Log.d(url, "UnsupportedEncodingException"); e.printStackTrace(); } catch (ClientProtocolException e) { Log.d(url, "ClientProtocolException"); e.printStackTrace(); } catch (IOException e) { Log.d(url, "IOException"); e.printStackTrace(); } return resultStr; }}
List<NameValuePair> nameValuePairs 构建 这是,post给php的参数nameValuePairs.add(new BasicNameValuePair("key","value"));
//解析方法,主要是,这里有一点特殊,就是开始第一个json对象是jsonObject 和JSONArray 有一点不同,jsonObject 是指json最开始以{开始的,而以[开始的是JSONArray ,没仔细研究,这里他们都是字符串
//解析JSON数据 public static List<Map<String,String>>resolveData(String jsonStr) { List<Map<String,String>>ls=new ArrayList<Map<String,String>>(); Map<String,String> data; JSONObject jsonObject; JSONArray jsonArr; JSONArray nameArr; try { jsonArr=new JSONArray(jsonStr); for(int i=0;i<jsonArr.length();i++) { jsonObject=jsonArr.getJSONObject(i); nameArr=jsonObject.names(); data=new HashMap<String,String>(); String name; for(int j=0;j<nameArr.length();j++) { name=nameArr.getString(j); data.put(name, jsonObject.getString(name)); } ls.add(data); } } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } return ls; }
//php上面不管以任何方式得到一个数组,然后将数组编码成为json格式
//这里有一个方法可以将一整张表转换为数组
<?php //获取一张表的所有数据function getTabDatas($tabName,$link){if($tabName=="") { exit; } $sqlStr='SELECT * FROM '.$tabName; $result = mysql_query($sqlStr, $link); if (!$result) { exit; } $fields= array(); for ($i=0; $i<mysql_num_fields($result); $i++) { $fields[] =mysql_field_name($result, $i); } $arr=array(); while ($row = mysql_fetch_assoc($result)) { $once=array(); foreach ($fields as $value) { $once[$value]=$row[$value]; } $arr[]=$once; } mysql_free_result($result); closeSqlconn(); return $arr;}?>
//然后php只需要将得到的数组格式化为json就行了
$json_string = json_encode($resArr);echo $json_string;
//超时请求 httpclient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 5000); //读取超时 httpclient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 5000);

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