AFNetworking返回400

我试图做一个简单的登录系统AFNetworking返回400

我使用AFNetworking，这是我的登录功能，因为它代表：

- (void) login { 

NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:email.text, @"email", password.text, @"password", nil]; 

AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:@"http://localhost:8888"]]; 
[httpClient setParameterEncoding:AFFormURLParameterEncoding]; 

NSMutableURLRequest *request = [httpClient requestWithMethod:@"POST" 
                 path:@"http://localhost:8888/api.php" 
                parameters:params]; 


AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request]; 

[httpClient registerHTTPOperationClass:[AFHTTPRequestOperation class]]; 

[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { 
    NSString *response = [operation responseString]; 
    NSLog(@"response: [%@]",response); 
} failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
    NSLog(@"error: %@", [operation error]); 
}]; 

[operation start];

}

它返回状态400 “坏请求”，所以我假设我的帖子格式不正确。但我似乎无法找到它有什么问题？

这里是在登录APi的

function login() { 

    // Check for required params 
    if (isset($_POST['email']) && isset($_POST['password'])) { 

     // Put params into local variables 
     $email = $_POST['email']; 
     $pass = $_POST['password']; 

     echo 'Your email:' + $email + 'and password: ' + $password; 

     // look up params in db 
     $stmt = $this->db->prepare('SELECT `email`, `password`, `group_name` FROM `User` WHERE `email` = ? AND `password` = ?'); 
     $stmt->bind_param('ss', $email, $password); 
     $stmt->execute(); 
     $stmt->bind_result($u_email, $u_password, $group_name); 
     while ($stmt->fetch()) { 
      break; 
     } 

     $stmt->close(); 

     // Bail if code doesn't exist 

     // Return unlock code, encoded with JSON 
     $result = array(
      "group_name" => $group_name, 
     ); 

     sendResponse(200, json_encode($result)); 
     return true; 
    } 

    sendResponse(400, 'Invalid request'); 
    return false; 
}

因此，大家可以看到电子邮件/密码不被用邮寄给他们的价值观没有设置一目了然。

这里有什么问题？

来源

2012-12-28 codeRefiner