使用 Xcode 将图像上传到 couchDB JSON 服务器时出错

Question

在对 URL 中的代码进行一些修改后：

How to send post data and image file to server Xcode

我设法运行它不再崩溃，但是这一次，我收到一个错误的请求错误，说我无效 JSON.How 我要解决这个问题吗？顺便说一句，self.choseImage.image 是我要上传的图片。

  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

您将数据发送到路径 /:dbname/:docid。如所述 here 您必须上传附件的内容类型：

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

您必须知道要附加图像的文档的当前版本。

或者，您可以在一个请求中发送带有新文档的附件 - 二进制或内联 Base64 编码字符串。更多关于 CouchDB 文档附件显示 API path documentation。

使用 Xcode 将图像上传到 couchDB JSON 服务器时出错

Error when uploading an image to a couchDB JSON server using Xcode

upload

xcode

json

couchdb

image