我开始使用MAMP附带的“形状”Web服务进行教程。现在我正在尝试为自己重新创建一项服务。我现在一直在寻找解决方案或如何在过去5个小时内调试问题。我的强项不是PHP，所以我不确定如何设置调试或某种方式来打印URL响应。非常感谢任何人的帮助。
Objective-C代码：
NSString* serviceRootUrlString = @"http://localhost:8888/answers/Answers/";
NSURL* answerService = [NSURL URLWithString:serviceRootUrlString];
_database = [[Database alloc] initWithServiceUrl:answerService];
- (void)nextQuestionWithAnswer:(NSString *)answer andComment:(NSString *)comment
{
NSString* deviceId = [[UIDevice currentDevice] uniqueIdentifier];
NSData* deviceIdAsData = [deviceId dataUsingEncoding:NSUTF8StringEncoding];
NSString* deviceHash = [Database MD5Hash:deviceIdAsData];
NSMutableDictionary* answerDictionary = [NSMutableDictionary dictionary];
[answerDictionary setObject:deviceHash forKey:@"SetId"];
[answerDictionary setObject:[NSNumber numberWithInt:(_currentQuestionNumber + 1)] forKey:@"QuestionId"];
[answerDictionary setObject:answer forKey:@"Answer"];
[answerDictionary setObject:comment forKey:@"Comment"];
[_database insertRecordWithDictionary:answerDictionary];
[self nextQuestion];
}
- (BOOL)insertRecordWithDictionary:(NSDictionary *)recordDictionary
{
NSData* recordPropertyListData = [NSPropertyListSerialization dataFromPropertyList:recordDictionary format:NSPropertyListXMLFormat_v1_0 errorDescription:nil];
NSMutableURLRequest* urlRequest = [NSMutableURLRequest requestWithURL:_serviceUrl];
[urlRequest setHTTPMethod:@"POST"];
[urlRequest setHTTPBody:recordPropertyListData];
NSURLResponse* response = nil;
NSError* error = nil;
NSData* responseData = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:&response error:&error];
id propertyList = [NSPropertyListSerialization propertyListWithData:responseData options:NSPropertyListImmutable format:nil error:nil];
NSDictionary* responseDictionary = (NSDictionary*)propertyList;
NSLog(@"New Record result: %@", responseDictionary);
if (error == nil)
{
return YES;
}
else
{
NSLog(@"Database Error: %@", [error description]);
return NO;
}
}
PHP代码：
<?php
require_once 'CFPropertyList/CFPropertyList.php';
// connect to database
$connection = mysql_connect("localhost:8889","root","root");
if (!$connection)
die("Could not connect: " . mysql_error());
// Database layout
$databaseName = "answers";
$surveyAnswersTableName = "Answers";
$surveyAnswersArrayName = "Answers";
$answerId = "Id";
$answerTimeStamp = "TimeStamp";
$answerSetId = "SetId";
$answerQuestionId = "QuestionId";
$answerAnswer = "Answer";
$answerComment = "Comment";
// Determine the requested resource, stripping empty resource elements and the base name
$base = "answers";
$resourceKeys = array_merge(array_diff(explode("/", $_SERVER[REQUEST_URI]), array("", $base)));
// Detect usage of the old setup
if (count($resourceKeys) == 0)
die("Specify a table that contains your shapes. Ex: http://the_host_name:8888/answers/your_user_name/");
// Use the first resource key as the table name, then strip it away
$surveyAnswersTableName = $resourceKeys[0];
$resourceKeys = array_merge(array_diff($resourceKeys, array($surveyAnswersTableName)));
// Check for the database. Create the database and populate it if it does not exist
$databaseExists = mysql_select_db($databaseName, $connection);
if (!$databaseExists)
{
// Create and select the ozzie database
mysql_query("CREATE DATABASE $databaseName",$connection);
$databaseExists = mysql_select_db($databaseName, $connection);
if (!$databaseExists)
die("Could not create database $databaseName: " . mysql_error());
}
// Check for the requested answers table
$sql = "SHOW TABLES LIKE '$surveyAnswersTableName'";
mysql_query($sql, $connection);
$row = mysql_fetch_array($result);
print($row);
// Create it if it does not exist
if ($row == FALSE)
{
// Create the table that holds the answers
$sql = "CREATE TABLE $surveyAnswersTableName
(
$answerId int NOT NULL AUTO_INCREMENT PRIMARY KEY,
$answerTimeStamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
$answerSetId text,
$answerQuestionId int,
$answerAnswer text,
$answerComment text
)";
mysql_query($sql, $connection);
}
if ($_SERVER[REQUEST_METHOD] == "POST")
{
// Insert or append shape specified in POST to the database
if (count($resourceKeys) == 0)
{
// Load the posted plist into a property list object
// HACK: Save post data to file to load into plist. Should be able to load directly from php://input, but won't...
$postdata = file_get_contents("php://input");
$fileName = dirname(__FILE__) . "/tmp.php";
$file = fopen($fileName, 'w') or die("Cannot open file");
fwrite($file, $postdata);
fclose($file);
$postPlist = new CFPropertyList($fileName);
unlink($fileName);
// Unpack data for answer
// TODO: Verify data
$answerDictionary = $postPlist->getValue(true);
$setId = $answerDictionary->get($answerSetId);
$questionId = $answerDictionary->get($answerQuestionId);
$answer = $answerDictionary->get($answerAnswer);
$comment = $answerDictionary->get($answerComment);
// Insert answer into database
$sql = "INSERT INTO $surveyAnswersTableName
(
$answerSetId,
$answerQuestionId,
$answerAnswer,
$answerComment
)
VALUES
(
'$setId',
'$questionId',
'$answer',
'$comment'
)";
mysql_query($sql,$connection);
print($sql);
// Package result into outer dictionary
// TODO: Call method instead
$resultDictionary = new CFDictionary();
$resultDictionary->add($surveyAnswersArrayName, new CFString("Answer inserted."));
// Package outer dictionary into a property list and transmit
$resultPlist = new CFPropertyList();
$resultPlist->add($resultDictionary);
header("Content-type: text/xml");
print($resultPlist->toXML(true));
}
else if (count($resourceKeys) >= 1)
{
// Load the posted plist into a property list object
// HACK: Save post data to file to load into plist. Should be able to load directly from php://input, but won't...
$postdata = file_get_contents("php://input");
$fileName = dirname(__FILE__) . "/tmp.php";
$file = fopen($fileName, 'w') or die("Cannot open file");
fwrite($file, $postdata);
fclose($file);
$postPlist = new CFPropertyList($fileName);
unlink($fileName);
// Unpack data for shape
// TODO: Verify data
$answerDictionary = $postPlist->getValue(true);
$setId = $answerDictionary->get($answerSetId);
$questionId = $answerDictionary->get($answerQuestionId);
$answer = $answerDictionary->get($answerAnswer);
$comment = $answerDictionary->get($answerComment);
// Determine requested shape
$requestedAnswerSetId = $resourceKeys[0];
// Query to re-number shapes
$sql = "UPDATE $surveyAnswersTableName SET $answerId = $answerId + 1 WHERE $answerId >= $requestedAnswerId";
print($sql);
$result = mysql_query($sql);
// Insert shape into database
$sql = "INSERT INTO $surveyAnswersTableName
(
$answerSetId,
$answerQuestionId,
$answerAnswer,
$answerComment
)
VALUES
(
'$setId',
'$questionId',
'$answer',
'$comment'
)";
mysql_query($sql,$connection);
print($sql);
// Package result into outer dictionary
// TODO: Call method instead
// TODO: Verify that add completed successfully
$resultDictionary = new CFDictionary();
$resultDictionary->add($surveyAnswersArrayName, new CFString("Answer inserted."));
// Package outer dictionary into a property list and transmit
$resultPlist = new CFPropertyList();
$resultPlist->add($resultDictionary);
header("Content-type: text/xml");
print($resultPlist->toXML(true));
}
else
die("Invalid request");
}
?>
我知道我要求有人分析这些代码，但我们将非常感激。
答案 0 :(得分：2)
使用iOS和XCode进行打印响应：
NSData* responseData = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:&response error:&error];
NSLog(@"Reponse: %@", [[[NSString alloc]initWithData:responseData encoding:NSUTF8StringEncoding] autorelease]);
为了检查没有iOS的php响应，只需创建包含输入的HTML表单的某个html文件。这些输入必须具有与recordDictionary变量相同的键和值。表单操作应该类似于serviceRootUrlString变量，方法POST。