我在MYSQL數據庫中查找數據,同時我想檢索其中一個插入的屬性,以滿足我成功上傳的要求。當我第一次按下按鈕時,它只會將數據上傳到服務器,並不會返回任何內容。同樣,當我點擊按鈕時,它會執行兩個過程(插入和檢索數據),所以我不能以json對象的形式第一次返回值。JSON數據從PHP服務器不工作。
這是我的PHP代碼engrdatainsert.php
<?php
$sqlCon=mysql_connect("localhost","root","");
mysql_select_db("PeopleData");
//Retrieve the data from the Android Post done by and Engr...
$adp_no = $_REQUEST['adp_no'];
$building_no = $_POST['building_no'];
$contractor_name = $_POST['contractor_name'];
$officer_name = $_POST['officer_name'];
$area = $_POST['area'];
-------------------從Android插入接收到的值------- --- ||
$sql = "INSERT INTO engrdata (adp_no, building_no,area,contractor_name,officer_name) VALUES('$adp_no', '$building_no', '$are', '$contractor_name', '$officer_name')";
// --------現在檢查插入數據的事務狀態--------- ||
$q=mysql_query("SELECT adp_no FROM engrdata WHERE adp_no='$adp_no'");
while($e=mysql_fetch_assoc($q))
$output[]=$e;
print(json_encode($output));//conveting into json array
mysql_close();
?>
我的Android代碼
public void insertdata()
{
InputStream is=null;
String result=null;
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(5);
nameValuePairs.add(new BasicNameValuePair("adp_no",adp));//"34"));
nameValuePairs.add(new BasicNameValuePair("building_no",bldng));//"72"));
nameValuePairs.add(new BasicNameValuePair("area",myarea));//"72"));
nameValuePairs.add(new BasicNameValuePair("contractor_name",cntrct));//"72"));
nameValuePairs.add(new BasicNameValuePair("officer_name",ofcr));//"72"));
//http post
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/androidconnection/engrdatainsert.php");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
Log.i("postData", response.getStatusLine().toString());
}
catch(Exception e)
{
Log.e("log_tag", "Error in http connection "+e.toString());
}
//convert the input strem into a string value
try
{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
is.close();
result=sb.toString();
}
catch(Exception e)
{ Log.e("log_tag", "Error converting result "+e.toString()); }
try
{
JSONArray jArray = new JSONArray(result);
for(int i=0;i<jArray.length();i++)
{
JSONObject json_data = jArray.getJSONObject(i);
Toast.makeText(this, "data is "+json_data.getString("adp_no")+"\n", Toast.LENGTH_LONG).show();
String return_val = json_data.getString("adp_no");
if(return_val!=null)
{
Intent offff=new Intent(this,MainActivity.class);
offff.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
offff.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//startActivity(offff);
}
}
}
//}
catch(JSONException e)
{ Log.e("log_tag", "Error parsing data "+e.toString()); }
// return returnString;//*/
}
被定義在精確的方式JSON請參閱此鏈接[JSON在Android中] [1] 五月你會發現你的解決方案在這裏的鏈接 [1]:http://stackoverflow.com/questions/2818697/sending-and-parsing-json-in-android –