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我已經存儲了一些數據存儲在web上的mysql數據庫。我在應用程序中使用web腳本和JSON對象，但是在解析數據時出現錯誤。通過php web服務連接android與sql
我能夠看到來自MySql服務器的網頁中的數據。但是，當運行應用程序並嘗試獲取數據時，Process Dialogue不會結束，並從catch塊中拋出下面的分析錯誤。
錯誤日誌
Error parsing data org.json.JSONException: Value <html><body><script of type java.lang.String cannot be converted to JSONArray
這裏是我的代碼。 AddTopic.java
public class AddTopic extends Activity implements View.OnClickListener {
Button fetch;
TextView text;
EditText et;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.data);
fetch= (Button) findViewById(R.id.fetch);
text = (TextView) findViewById(R.id.text);
et = (EditText) findViewById(R.id.et);
fetch.setOnClickListener(this);
}
class task extends AsyncTask<String, String, Void>
{
private ProgressDialog progressDialog = new ProgressDialog(AddTopicFragment.this);
InputStream is = null ;
String result = "";
protected void onPreExecute() {
progressDialog.setMessage("Fetching data...");
progressDialog.show();
progressDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface arg0) {
task.this.cancel(true);
}
});
}
@Override
protected Void doInBackground(String... params) {
String url_select = "http://swachapp.byethost32.com/demo.php";
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url_select);
ArrayList<NameValuePair> param = new ArrayList<NameValuePair>();
try {
httpPost.setEntity(new UrlEncodedFormEntity(param));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
//read content
is = httpEntity.getContent();
} catch (Exception e) {
Log.e("log_tag", "Error in http connection "+e.toString());
//Toast.makeText(MainActivity.this, "Please Try Again", Toast.LENGTH_LONG).show();
}
try {
BufferedReader br = new BufferedReader(new InputStreamReader(is, HTTP.UTF_8),8);
StringBuilder sb = new StringBuilder();
String line = "";
while((line=br.readLine())!=null)
{
sb.append(line+"\n");
}
is.close();
result=sb.toString();
} catch (Exception e) {
// TODO: handle exception
Log.e("log_tag", "Error converting result "+e.toString());
}
return null;
}
protected void onPostExecute(Void v) {
// ambil data dari Json database
try {
JSONArray Jarray = new JSONArray(result);
for(int i=0;i<Jarray.length();i++)
{
JSONObject Jasonobject = null;
//text_1 = (TextView)findViewById(R.id.txt1);
Jasonobject = Jarray.getJSONObject(i);
//get an output on the screen
//String id = Jasonobject.getString("id");
String name = Jasonobject.getString("headings");
String db_detail="";
if(et.getText().toString().equalsIgnoreCase(name)) {
db_detail = Jasonobject.getString("detailstory");
text.setText(db_detail);
break;
}
//text_1.append(id+"\t\t"+name+"\t\t"+password+"\t\t"+"\n");
}
this.progressDialog.dismiss();
} catch (Exception e) {
// TODO: handle exception
Log.e("log_tag", "Error parsing data " + e.toString());
}
}
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch(v.getId()) {
case R.id.fetch : new task().execute();break;
}
}
}
感謝您的時間。