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我和我的應用程序的問題。我試圖在Android中創建註冊表，但我遇到了一些問題。什麼在Android的錯誤與此代碼（PHP + MySQL的）？
當我運行這個應用程序時，一切都很好，但是當我嘗試保存數據時，它會顯示一條錯誤消息Unknown Status!，我不知道什麼是錯的！
你能，請幫助我。
下面是我的代碼：
PS：我想Stealz's answer，現在我收到錯誤username exist，但我的表只有一個插入。
nota_spinner.xml
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/tableLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TableRow
android:id="@+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Register Form "
android:layout_span="1"
android:textAppearance="?android:attr/textAppearanceLarge" />
</TableRow>
<View
android:layout_height="1dip"
android:background="#CCCCCC" />
<TableLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.1"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Input Username :"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/txtUsername"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10" >
</EditText>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Input Password/Confirm Password :"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TableRow>
<EditText
android:id="@+id/txtPassword"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="6"
android:inputType="textPassword" >
</EditText>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" Again " />
<EditText
android:id="@+id/txtConPassword"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="7"
android:inputType="textPassword" >
</EditText>
</TableRow>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Input Name :"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/txtName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10" >
</EditText>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Input Email :"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/txtEmail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="textEmailAddress"
android:ems="10" >
</EditText>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Input Tel :"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/txtTel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="phone"
android:ems="10" >
</EditText>
<Button
android:id="@+id/btnSave"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Save" />
</TableLayout >
<View
android:layout_height="1dip"
android:background="#CCCCCC" />
<LinearLayout
android:id="@+id/LinearLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dip" >
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="By.. ThaiCreate.Com" />
</LinearLayout>
</TableLayout>
Class.java
public class Class extends Activity {
@SuppressLint("NewApi")
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.nota_spinner);
// Permission StrictMode
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
// btnSave
final Button btnSave = (Button) findViewById(R.id.btnSave);
// Perform action on click
btnSave.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if(SaveData())
{
// When Save Complete
}
}
});
}
public boolean SaveData()
{
// txtUsername,txtPassword,txtName,txtEmail,txtTel
final EditText txtUsername = (EditText)findViewById(R.id.txtUsername);
final EditText txtPassword = (EditText)findViewById(R.id.txtPassword);
final EditText txtConPassword = (EditText)findViewById(R.id.txtConPassword);
final EditText txtName = (EditText)findViewById(R.id.txtName);
final EditText txtEmail = (EditText)findViewById(R.id.txtEmail);
final EditText txtTel = (EditText)findViewById(R.id.txtTel);
// Dialog
final AlertDialog.Builder ad = new AlertDialog.Builder(this);
ad.setTitle("Error! ");
ad.setIcon(android.R.drawable.btn_star_big_on);
ad.setPositiveButton("Close", null);
// Check Username
if(txtUsername.getText().length() == 0)
{
ad.setMessage("Please input [Username] ");
ad.show();
txtUsername.requestFocus();
return false;
}
// Check Password
if(txtPassword.getText().length() == 0 || txtConPassword.getText().length() == 0)
{
ad.setMessage("Please input [Password/Confirm Password] ");
ad.show();
txtPassword.requestFocus();
return false;
}
// Check Password and Confirm Password (Match)
if(!txtPassword.getText().toString().equals(txtConPassword.getText().toString()))
{
ad.setMessage("Password and Confirm Password Not Match! ");
ad.show();
txtConPassword.requestFocus();
return false;
}
// Check Name
if(txtName.getText().length() == 0)
{
ad.setMessage("Please input [Name] ");
ad.show();
txtName.requestFocus();
return false;
}
// Check Email
if(txtEmail.getText().length() == 0)
{
ad.setMessage("Please input [Email] ");
ad.show();
txtEmail.requestFocus();
return false;
}
// Check Tel
if(txtTel.getText().length() == 0)
{
ad.setMessage("Please input [Tel] ");
ad.show();
txtTel.requestFocus();
return false;
}
String url = "blahblah/saveADDData.php";
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("sUsername", txtUsername.getText().toString()));
params.add(new BasicNameValuePair("sPassword", txtPassword.getText().toString()));
params.add(new BasicNameValuePair("sName", txtName.getText().toString()));
params.add(new BasicNameValuePair("sEmail", txtEmail.getText().toString()));
params.add(new BasicNameValuePair("sTel", txtTel.getText().toString()));
/** Get result from Server (Return the JSON Code)
* StatusID = ? [0=Failed,1=Complete]
* Error = ? [On case error return custom error message]
*
* Eg Save Failed = {"StatusID":"0","Error":"Email Exists!"}
* Eg Save Complete = {"StatusID":"1","Error":""}
*/
String resultServer = getHttpPost(url,params);
/*** Default Value ***/
String strStatusID = "0";
String strError = "Unknow Status!";
JSONObject c;
try {
c = new JSONObject(resultServer);
strStatusID = c.getString("StatusID");
strError = c.getString("Error");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// Prepare Save Data
if(strStatusID.equals("0"))
{
ad.setMessage(strError);
ad.show();
}
else
{
Toast.makeText(Nota.this, "Save Data Successfully", Toast.LENGTH_SHORT).show();
txtUsername.setText("");
txtPassword.setText("");
txtConPassword.setText("");
txtName.setText("");
txtEmail.setText("");
txtTel.setText("");
}
return true;
}
public String getHttpPost(String url,List<NameValuePair> params) {
StringBuilder str = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
try {
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse response = client.execute(httpPost);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) { // Status OK
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
str.append(line);
}
} else {
Log.e("Log", "Failed to download result..");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return str.toString();
}
}
這是我的PHP文件saveADDData.php
<?
$objConnect = mysql_connect("localhost","root","");
$objDB = mysql_select_db("retailer");
/*** for Sample
$_POST["sUsername"] = "a";
$_POST["sPassword"] = "b";
$_POST["sName"] = "c";
$_POST["sEmail"] = "d";
$_POST["sTel"] = "e";
*/
$strUsername = $_POST["sUsername"];
$strPassword = $_POST["sPassword"];
$strName = $_POST["sName"];
$strEmail = $_POST["sEmail"];
$strTel = $_POST["sTel"];
/*** Check Username Exists ***/
$strSQL = "SELECT * FROM member WHERE Username = '".$strUsername."' ";
$objQuery = mysql_query($strSQL);
$objResult = mysql_fetch_array($objQuery);
if($objResult)
{
$arr['StatusID'] = "0";
$arr['Error'] = "Username Exists!";
echo json_encode($arr);
exit();
}
/*** Check Email Exists ***/
$strSQL = "SELECT * FROM member WHERE Email = '".$strEmail."' ";
$objQuery = mysql_query($strSQL);
$objResult = mysql_fetch_array($objQuery);
if($objResult)
{
$arr['StatusID'] = "0";
$arr['Error'] = "Email Exists!";
echo json_encode($arr);
exit();
}
/*** Insert ***/
$strSQL = "INSERT INTO member (Username,Password,Name,Email,Tel)
VALUES (
'".$strUsername."',
'".$strPassword."',
'".$strName."',
'".$strEmail."',
'".$strTel."'
)
";
$objQuery = mysql_query($strSQL);
if(!$objQuery)
{
$arr['StatusID`enter code here`'] = "0";
$arr['Error'] = "Cannot save data!";
}
else
{
$arr['StatusID'] = "1";
$arr['Error'] = "";
}
/**
$arr['StatusID'] // (0=Failed , 1=Complete)
$arr['Error'] // Error Message
*/
mysql_close($objConnect);
echo json_encode($arr);
?>
一個可怕的措辭問題，只是轉儲的代碼塊以最小的努力來描述任何期望的輸入和預期的輸出，或列出任何試圖努力尋找病因。 – invert