从iOS App通过HTTP POST到Google Form

问题描述

我正在处理POST请求，并且一直在使用此 answer . NSUrlRequest(和连接)文档很多，但是我很难弄清为什么该请求不起作用.

I am working on a POST request and have been using this answer. There is a lot of documentation NSUrlRequest (and connection) but I am having trouble figuring out why the request won't work.

1. 我已使用此代码使用HTTP Dev Client成功执行了POST

1. I have performed a successful POST using an HTTP Dev Client using this code

entry.0.single=name&entry.1.single=location&entry.4.single=phoneNumber&entry.2.single=order????&pageNumber=0&backupCache=

这4个变量(名称，位置，电话号码，顺序)都链接到应用程序中的textFields.

The 4 variables (name, location, phoneNumber, order) are all linked to textFields in the app.

- (IBAction)placeOrder:(id)sender {
    NSURL *nsURL = [[NSURL alloc] initWithString:@"url"];
    NSMutableURLRequest *nsMutableURLRequest = [[NSMutableURLRequest alloc] initWithURL:nsURL];

    // Set HTTP method to POST
    [nsMutableURLRequest setHTTPMethod:@"POST"];

    // Set up the parameters to send.
    NSString *paramDataString = [NSString stringWithFormat:@"%@=%@&%@=%@&%@=%@&%@=%@&pageNumber=0&backupCache=",@"entry.0.single", _name, @"entry.1.single", _location, @"entry.4.single", _phoneNumber, @"entry.2.single", _order];

    // Encode the parameters to default for NSMutableURLRequest.
    NSData *paramData = [paramDataString dataUsingEncoding:NSUTF8StringEncoding];

    // Set the NSMutableURLRequest body data.
    [nsMutableURLRequest setHTTPBody: paramData];


    // Create NSURLConnection and start the request.
    NSURLConnection *nsUrlConnection=[[NSURLConnection alloc]initWithRequest:nsMutableURLRequest delegate:self];

    [ nsUrlConnection start];

}

我想我可能会遗漏一些细微的东西，但是我一直在浏览stackoverflow和开发人员文档.任何想法将不胜感激.谢谢

I think I might be missing something subtle but I have been pouring through stackoverflow and developer documentation. Any thoughts would be much appreciated. Thanks

推荐答案

您将需要实现NSURLConnectionDelegate协议，将[nsUrlConnection setDelegate:self];放入代码中，并添加-connectionDidFinishLoading:，-connection:didReceiveData:和-connectionDidFailWithError:方法到您的代码中并捕获响应数据:

You would need to implement the NSURLConnectionDelegate protocol, put [nsUrlConnection setDelegate:self]; into your code and add the -connectionDidFinishLoading:, -connection:didReceiveData: and -connectionDidFailWithError: methods into your code and capture the response data:

.h
NSMutableData *responseData;

.m
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
    responseData = [[NSMutableData alloc] init];
}

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

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
    NSLog(@"RESPONSE: %@", [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]);
}

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
    NSLog(@"CONNECTION ERROR: %@", [error localizedDescription]);
}

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