使用Xcode將圖像上載到CouchDB JSON服務器時出錯

Question

修改此URL中找到的代碼后：

如何將發布數據和圖像文件發送到服務器Xcode

我設法運行了它而不再崩潰，但是這次，我收到一個嚴重的請求錯誤，說我的JSON無效。如何解決此問題？ 順便說一句，self.choseImage.image是我要上傳的圖像。

  NSData *imageData = UIImageJPEGRepresentation(self.chosenImage.image,1);

    if (imageData != nil)

    {
        NSString * filenames = [NSString stringWithFormat:@"TextLabel"];
        NSLog(@"%@", filenames);

        NSString *urlString = @"http://127.0.0.1:5984/sgramimage";

        NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
        [request setURL:[NSURL URLWithString:urlString]];
        [request setHTTPMethod:@"POST"];

        NSString *boundary = @"---------------------------14737809831466499882746641449";
        NSString *contentType = [NSString stringWithFormat:@"application/json; boundary=%@",boundary];
        [request addValue:contentType forHTTPHeaderField: @"Content-Type"];

        NSMutableData *body = [NSMutableData data];
        [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
        [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"filenames\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
        [body appendData:[filenames dataUsingEncoding:NSUTF8StringEncoding]];
        [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
        [body appendData:[@"Content-Disposition: form-data; name=\"userfile\"; filename=\"TestEdreamzIpad.jpg\"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
        [body appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
        [body appendData:[NSData dataWithData:imageData]];
        [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
        [request setHTTPBody:body];
        NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
        NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
        NSLog(@"Response : %@",returnString);
        NSLog(@"Finish");
    }

Answer 1

您將數據發送到路徑/:dbname/:docid 。 如此處所述，您必須以自己的Content-Type上傳附件：

curl -vX PUT http://127.0.0.1:5984/sgramimage?rev=:rev \
 --data-binary @TestEdreamzIpad.jpg -H "Content-Type:image/jpg"

您必須知道圖像應附加到的文檔的當前版本。

或者，您可以在一個請求中發送帶有新文檔的附件-二進制或內聯作為Base64編碼的字符串。 有關CouchDB文檔附件的更多信息，顯示了API路徑文檔 。