將發佈變量發送到iOS表格

Question

我試圖發送用戶名和密碼到通常通過表單完成的網站。然而，服務器將我重定向到登錄頁面，通常在用戶名和密碼錯誤時發生。用戶名是電子郵件地址的形式，密碼是一個字符串。

由於開發者不在，我目前可以訪問該網站以檢查值是否正確處理。任何人都可以在下面創建的代碼中看到任何明顯的錯誤？

請注意我已經從示例代碼中刪除了URL，以保護隱私。

// Validate login 
-(bool)validateLogin{ 

    // Initialize URL to be fetched 
    NSURL *url = [NSURL URLWithString:@"removedurl"]; 

    NSString *post = @"username=example1%40example.com&password=example2"; 

    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; 

    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]]; 

    // Initalize a request from a URL 
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[url standardizedURL]]; 

    //set url 
    [request setURL:url]; 
    //set http method 
    [request setHTTPMethod:@"POST"]; 
    //set request length 
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; 
    //set request content type we MUST set this value. 
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; 
    //set post data of request 
    [request setHTTPBody:postData]; 

    NSLog(@"%@", [request allHTTPHeaderFields]); 

    //initialize a connection from request 
    NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self]; 
    _connection = connection;  
    //start the connection 
    [connection start]; 

    return YES; 
} 

Answer 1

這個字符串是不正確的NSString *post = @"username=example1%40example.com&example2"; 符號後，必須提供鍵=值。

在h文件組代表：

@interface Controller <NSURLConnectionDataDelegate> 

在.m文件：工作碼
@"key1=value1&key2=value2";

例

- (void)login { 
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlString] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:kRequestTimeOut]; 
    request.HTTPMethod = @"POST"; 
    NSString *params = @"key1=value1&key2=value2"; 
    request.HTTPBody = [params dataUsingEncoding:NSUTF8StringEncoding]; 

    _data = [NSMutableData data]; 

    NSURLConnection *connection = [NSURLConnection connectionWithRequest:request delegate:self]; 
} 

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { 
    [_data appendData:data]; 
} 

- (void)connectionDidFinishLoading:(NSURLConnection *)connection { 
    //Parse your '_data' here. 
}