Question

我想按下按钮时将示例视频文件上传到服务器。我使用了下面的代码。

-(IBAction)buttonAction
{
NSMutableURLRequest* post = [NSMutableURLRequest requestWithURL: [NSURL URLWithString: @"http://115.111.27.206:8081/vblo/upload.jsp"]];
    [post setHTTPMethod: @"POST"];


    NSString *boundary = [NSString stringWithString:@"---------------------------358734318367435438734347"];

    NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];

    [post addValue:contentType forHTTPHeaderField: @"Content-Type"];


    NSMutableData *body = [NSMutableData data];

    [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];

    [body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"videofile\"; filename=\"videofile.3gp\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];

    [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];

    [body appendData:[[[NSBundle mainBundle] pathForResource:@"video" ofType:@"3gp"] 
                      dataUsingEncoding: NSASCIIStringEncoding]];

    [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];


    [post setHTTPBody:body];

    NSData *returnData = [NSURLConnection sendSynchronousRequest:post returningResponse:nil error:nil];

    NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
    UIAlertView *statusAlert = [[UIAlertView alloc]initWithTitle:nil message:(NSString *)returnString delegate:self cancelButtonTitle:@"cancel" otherButtonTitles:@"ok", nil];
            [statusAlert show];

Answer 1

您还必须按如下方式设置HTTP标头：

NSMutableURLRequest* post = [NSMutableURLRequest requestWithURL: [NSURL URLWithString: @"http://115.111.27.206:8081/vblo/upload.jsp"]];
[post setHTTPMethod: @"POST"];


NSString *boundary = [NSString stringWithString:@"---------------------------358734318367435438734347"];

NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];

[post addValue:contentType forHTTPHeaderField: @"Content-Type"];


NSMutableData *body = [NSMutableData data];

[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];

[body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"videofile\"; filename=\"videofile.3gp\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];

[body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];


[body appendData:[NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"video" ofType:@"3gp"]]];

[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];


[post setHTTPBody:body];

NSData *returnData = [NSURLConnection sendSynchronousRequest:post returningResponse:nil error:nil];

NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];

NSLog(returnString);

或者如果你想要异步请求，那么你可以调用NSURLConnection的initWithRequest方法。

将示例视频文件上传到服务器的问题

1 个答案: