在iOS中发送HTTP PATCH请求（目标-c）

Question

我正在使用REST API，其中一种API是PATCH ，我尝试使用以下代码来调用它，但会引发错误，而同一API在Postman客户端中也可以工作。

+ (NSURLSessionTask *)callPATCHAPIWithAPIName:(NSString *)apiName andCompletionHandler:(void(^)(id result, NSInteger responseCode, NSError *error))completionHandler
{
    NSString *getURL = @"192.168.1.100/UpdateDeviceInfo/iPhone6/OS 9.2";
    NSURL *URL = [NSURL URLWithString:getURL];
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:URL];

    NSURLSessionConfiguration *sessionConfiguration = [NSURLSessionConfiguration defaultSessionConfiguration];
    sessionConfiguration.timeoutIntervalForRequest = 45.0f;

    NSURLSession *session = [NSURLSession sessionWithConfiguration:sessionConfiguration];

    // Create Data from request
    NSData *requestData = [NSData dataWithBytes: [@"" UTF8String] length:[@"" length]];

    [request setHTTPMethod:@"PATCH"];
    [request setValue:[NSString stringWithFormat:@"%lu", (unsigned long)[requestData length]] forHTTPHeaderField:@"Content-Length"];

    [request setHTTPBody:requestData];

    NSURLSessionDataTask *task = [session dataTaskWithRequest:request
                                            completionHandler:
                                  ^(NSData *data, NSURLResponse *response, NSError *error)
                                  {
                                      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;

                                      NSInteger responseCode = [httpResponse statusCode];
                                      NSLog(@"response Code : %ld",(long)responseCode);
                                  }];

    [task resume];
    return task;
}

[错误：错误域= NSURLErrorDomain代码= -1002“不支持的URL” UserInfo = {NSLocalizedDescription =不支持的URL，NSUnderlyingError = 0x14e86d490 {错误域= kCFErrorDomainCFNetwork代码= -1002“（null）”}}]]

我在查询字符串中而不是在请求正文中传递参数。 尽管同一件事在Postman客户端和Android中也可以正常工作。

Answer 1

看来您在NSString *getURL = @"192.168.1.100/UpdateDeviceInfo/iPhone6/OS 9.2"有一个空格NSString *getURL = @"192.168.1.100/UpdateDeviceInfo/iPhone6/OS 9.2"

我认为URL格式不支持空格！ 相反，如果需要空格，请确保使用getURL = [getURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 为了处理网址字符串中的空格！