我有预订活动，允许用户保留表格。问题是不能将任何东西保存到mysql数据库中。在LogCat中没有显示任何内容，也没有任何错误。只需重新加载相同的活动。活动流程是
Activity_1 -> Activity_2 -> Activity_3 -> Activity_4 -> Activity_5 (last and finish)
我已经通过活动之间的意图传递了我需要的数据。
Activity_2
Intent newActivity = new Intent(Activity_2.this, Activity_3.class);
newActivity.putExtra("Position", Position);
newActivity.putExtra("resultServer", resultServer);
newActivity.putExtra("id", MyArrList.get(position).get("id").toString());
startActivity(newActivity);
Activity_3
Intent intent= getIntent();
table_id = intent.getStringExtra("id");
btnMenues.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Activity_3.this, Activity_4.class);
String Name = editText1.getText().toString();
String Email = editText2.getText().toString();
String Phone = editText3.getText().toString();
String Comment = editText4.getText().toString();
String DateTime = datePicker.getText().toString();
String numberOfPeople = editText5.getText().toString();
intent.putExtra("Name", Name);
intent.putExtra("Email", Email);
intent.putExtra("Phone", Phone);
intent.putExtra("Comment", Comment);
intent.putExtra("DateTime", DateTime);
intent.putExtra("numberOfPeople", numberOfPeople);
intent.putExtra("table_id", table_id);
startActivity(intent);
}
//}
});
}
Activity_4
Bundle extras = getIntent().getExtras();
if (extras != null) {
getName = extras.getString("Name");
getEmail = extras.getString("Email");
getPhone = extras.getString("Phone");
getComment = extras.getString("Comment");
getDateTime = extras.getString("DateTime");
getnumberOfPeople = extras.getString("numberOfPeople");
table_id = extras.getString("table_id");
}
Intent newActivity = new Intent(Activity_4.this, Activity_5.class);
newActivity.putExtra("Position", Position);
newActivity.putExtra("resultServer", resultServer);
newActivity.putExtra("table_id", MyArrList.get(position).get("table_id").toString());
startActivity(newActivity);
Activity_5
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.table_information);
Intent intent= getIntent();
curPosition = Integer.parseInt(intent.getStringExtra("Position"));
resultServer = String.valueOf(intent.getStringExtra("resultServer"));
try {
MyArrList = ConvertJSONtoArrayList(resultServer);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.d("ArrayList Size",String.valueOf(MyArrList.size()));
// Show Image Full
new DownloadFullPhotoFileAsync().execute();
btnFinish = (Button) findViewById(R.id.btnFinish);
btnFinish.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Bundle extras = getIntent().getExtras();
if (extras != null) {
getName = extras.getString("Name");
getEmail = extras.getString("Email");
getPhone = extras.getString("Phone");
getComment = extras.getString("Comment");
getDateTime = extras.getString("DateTime");
getnumberOfPeople = extras.getString("numberOfPeople");
getTable = extras.getString("table_id");
}
new SummaryAsyncTask().execute((Void) null);
startActivity(getIntent());
}
});
}
class SummaryAsyncTask extends AsyncTask<Void, Void, Boolean> {
private void postData(String getNameToData, String getEmailData, String getPhoneData,
String getCommentData, String getDateTimeData, String getnumberOfPeopleData, String getTable) {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://link.to.site/save.php");
try {
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(4);
nameValuePairs.add(new BasicNameValuePair("Name", getNameToData));
nameValuePairs.add(new BasicNameValuePair("Email", getEmailData));
nameValuePairs.add(new BasicNameValuePair("Phone", getPhoneData));
nameValuePairs.add(new BasicNameValuePair("Comment", getCommentData));
nameValuePairs.add(new BasicNameValuePair("Date", getDateTimeData));
nameValuePairs.add(new BasicNameValuePair("numberOfPeople", getnumberOfPeopleData));
nameValuePairs.add(new BasicNameValuePair("table_id", getTable));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
}
catch(Exception e)
{
Log.e("log_tag", "Error: "+e.toString());
}
}
我错过了某个地方，但却无法弄明白究竟是什么。
使用save.php
$icon = mysql_connect("localhost","user","pass");
if(!$icon)
{
die('Could not connect : ' . mysql_erroe());
}
mysql_select_db("database", $icon)or die("database selection error");
echo json_encode($data);
$Name=$_POST['Name'];
$Phone=$_POST['Phone'];
$Email=$_POST['Email'];
$Comment=$_POST['Comment'];
$DateTime=$_POST['DateTime'];
$numberOfPeople=$_POST['numberOfPeople'];
$DateTime= date("Y-m-d H:i:s", strtotime($DateTime));
$table_id = $_POST['table_id'];
mysql_query("INSERT INTO reservation (Name, Phone, Email, Comment, DateTime, numberOfPeople, table)
VALUES ('$Name', '$Phone', '$Email', '$Comment', '$DateTime', '$numberOfPeople', '$table_id')",$icon);
mysql_close($icon);
logcat在Activity_3意图丢失之后更新。
11-30 03:40:59.497: D/Activity_3(1642): testName test@test.com 123456 testComment 30-11-2014 3:40 2 1
11-30 03:41:01.817: D/Activity_4(1642): null null null null null null 1
11-30 03:41:04.667: D/Actiovity_5(1642): org.apache.http.message.BasicHttpResponse@b2f5c9a0
在Activity_4 {仅保留table_id
答案 0 :(得分：1)
您的代码不完整，您只编写了快乐案例。
您缺少以下内容：
echo json_encode($data);数据未定义mysqli_或至少使用mysql_real_escape() BasicNameValuePair("Date", getDateTimeData)和$DateTime=$_POST['DateTime'];不匹配error_log()）或使用网络工具来查看请求LogCat if(isset($_POST['Name'], $_POST['Phone'], $_POST['Email'], $_POST['Comment'],
$_POST['numberOfPeople'], $_POST['DateTime'])){
$icon = mysql_connect("localhost","user","pass", "database");
if(!$icon)
{
die('Could not connect : ' . mysql_error());
}
$name=$_POST['Name'];
$phone=$_POST['Phone'];
$email=$_POST['Email'];
$comment=$_POST['Comment'];
$number_of_people=$_POST['numberOfPeople'];
$date_time= date("Y-m-d H:i:s", strtotime($_POST['DateTime']));
$table_id = $_POST['table_id'];
$query = sprintf("
INSERT INTO reservation
(`Name`, `Phone`, `Email`, `Comment`,
`DateTime`, `numberOfPeople`, `table`)
VALUES ('%s', '%s', '%s', '%s', '%s', '%s', '%s')",
mysql_real_escape_string($name),
mysql_real_escape_string($phone),
mysql_real_escape_string($email)),
mysql_real_escape_string($comment),
mysql_real_escape_string($date_time),
mysql_real_escape_string($number_of_people),
mysql_real_escape_string($table_id);
$result = mysql_query($query,$icon);
if(!$result)
{
die('Could not execute : ' . mysql_error());
}
if(mysql_num_rows($result) > 0){
echo "Success !";
}else{
echo "Fail !";
}
mysql_close($icon);
}else{
echo "missing values";
}
修改
不要忘记在android中记录响应：
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
Log.d(LOG_TAG, response.toString());
再次修改
如果您在activity4中获得空值，则表示Activity3中的editText为空，请确保它们在onCreate()中初始化
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editText1 = (EditText) findViewByID(R.id.editText1);
editText2 = (EditText) findViewByID(R.id.editText2);
editText3 = (EditText) findViewByID(R.id.editText3);
......
}
然后在您的按钮事件上执行此操作：
@Override
public void onClick(View v) {
Intent intent = new Intent(Activity_3.this, Activity_4.class);
intent.putExtra("Name", editText1.getText());
intent.putExtra("Email", editText2.getText());
intent.putExtra("Phone", editText3.getText());
intent.putExtra("Comment", editText4.getText());
intent.putExtra("DateTime", datePicker.getText());
intent.putExtra("numberOfPeople", editText5.getText());
intent.putExtra("table_id", getIntent().getStringExtra("id"));
startActivity(intent);
}