不幸的是，我已经搜索了 7 个小时的修复（或原因），最终承认我需要一些帮助。
我刚刚开始为 ios 重写我的应用程序（来自 android），我在 ios 中被 json 卡住了。
我的 JSON 发布操作；
NSString *post = [[NSString alloc] initWithFormat:@"{'firstname':'%@' 'surname':'%@' 'yob':'%@' 'gender':'%@' 'hometown':'%@' 'phone':'%@' 'email':'%@' 'deviceid':'%@' 'regId':'%@' 'phonetype':'%@'}",[_FirstName text],[_Surname text],[_YOB text],[_Gender text],[_HomeTown text], [_PhoneNO text],[_Email text],[_deviceid text],[_regID text],[_phonetype text]];
NSLog(@"PostData: %@",post);
NSURL *url=[NSURL URLWithString:@"***"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:url];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setValue:@"appplication/www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:postData];
NSError *error = [[NSError alloc] init];
NSHTTPURLResponse *response = nil;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSLog(@"Response code:%d", [response statusCode]);
if ([response statusCode] >=200 && [response statusCode] <300)
{
NSString *responseData = [[NSString alloc] initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(@"Respinse ==> %@", responseData);
SBJsonParser *jsonParser = [SBJsonParser new];
NSDictionary *jsonData = (NSDictionary *) [jsonParser objectWithString:responseData error:nil];
NSLog(@"%@",jsonData);
NSInteger sucess = [(NSNumber *) [jsonData objectForKey:@"sucess"] integerValue];
NSLog(@"%d",sucess);
if (sucess==1)
{
NSLog(@"Signed up");
}else {
NSString *error_msg = (NSString *) [jsonData objectForKey:@"error_message@"];
}
}else {
if (error) NSLog(@"Error: %@", error);
}
}
和我的php；
<?php
include_once("../php/sign_up/connect_db.php");
// array for JSON response
$response = array();
// check for required fields/
if (!empty($_POST['firstname']) && !empty($_POST['surname']) && !empty($_POST['email']) && !empty($_POST['phone']) && !empty($_POST['hometown']) && !empty($_POST['deviceid']) && !empty($_POST['yob']) && !empty($_POST['regId']) && !empty($_POST['gender'])) {
$firstname = $_POST['firstname'];
$surname = $_POST['surname'];
$email = $_POST['email'];
$phone = $_POST['phone'];
$hometown = $_POST['hometown'];
$deviceid = $_POST['deviceid'];
$phonetype = $_POST['phonetype'];
$yob = $_POST['yob'];
$regId = $_POST['regId'];
$gender = $_POST['gender'];
// include db connect class
//require_once __DIR__ . '/db_connect.php';
// connecting to db
$db = new DB_CONNECT();
$result = mysql_query("SELECT *FROM User_signup WHERE (email = '".$email."')" ) or die(mysql_error());
$existingemails = mysql_num_rows($result);
if ($existingemails > 0) {
$response["success"] = 0;
$response["message"] = "Email address already exists";
//echoing JSON response
echo json_encode($response);
}
else {
// mysql inserting a new row
$result = mysql_query("INSERT INTO User_signup(firstname, surname, email, phone, hometown, id, type, Yob, regid, gender) VALUES('$firstname', '$surname', '$email', '$phone', '$hometown', '$deviceid', '$phonetype', '$yob', '$regId', '$gender')");
// check if row inserted or not
if ($result) {
// successfully inserted into database
$response["success"] = 1;
$response["message"] = "Thank you for signing up!";
// echoing JSON response
echo json_encode($response);
} else {
// failed to insert row
$response["success"] = 0;
$response["message"] = "An Error has occurred, please try again later.";
// echoing JSON response
echo json_encode($response);
}
}
}else {
// required field is missing
$response["success"] = 0;
$response["message"] = "Please check you have completed all required fields";
// echoing JSON response
echo json_encode($response);
}
?>
这是返回的 JSON；
2013-10-07 00:03:59.465 ***[2517:c07] PostData: {'firstname':'ouyb' 'surname':'ouy' 'yob':'vbouv' 'gender':'GENDERouvy' 'hometown':'ouvy' 'phone':'ou' 'email':'vy' 'deviceid':'ilbuyv' 'regId':'obyouovy' 'phonetype':'uby'}
2013-10-07 00:03:59.645 ***[2517:c07] Response code:200
2013-10-07 00:03:59.645 ***[2517:c07] Respinse ==> {"success":0,"message":"Please check you have completed all required fields"}
2013-10-07 00:03:59.646 ***[2517:c07] {
message = "Please check you have completed all required fields";
success = 0;
}
现在我的 android 应用程序以相同的格式发布 json 数组，并被 php.ini 完美接受。我终其一生都无法找出问题所在。
它会通过从 php 中删除检查“如果为空”来显示，调用并运行 php，但没有数据输入到数据库中，但会创建一个新的空白行。对我来说，这听起来像是该应用程序没有发送它声称要发送的内容。
任何朝着正确方向的轻推将不胜感激。