Java 目标C iOS中的文件上载图像文件代码

我是iOS应用程序开发新手，我只想使用NSMutableURLRequest上传一个图像文件。请求的主体应包含在图像中。我只想发送如下的java代码图像

 HttpPut mCreatePost = new HttpPut(params[0]+"/data");
 FileEntity fileEntity = new FileEntity(uploadFile, "image/jpeg");
 mCreatePost.setEntity(fileEntity);
 mHttpClient.execute(mCreatePost);

请帮我写上面的目标C代码。提前感谢。

过程

发出NSMutableURLRequest

设置NSMutableURLRequest的URL

为NSMutableURLRequest设置HTTP方法

为NSMutableURLRequest设置标头字段

为NSMutableURLRequest设置HTTP正文。这将包括图像文件和任何其他参数（下面的示例代码）

初始化以前声明的NSMutableData对象。这用于存储来自服务器的响应（下面的示例代码）

初始化以前声明的NSURLConnection对象并设置其委托。在示例代码中，我创建了与委托相同的类，并实现了委托方法

示例代码

- (void)uploadImage    
    NSString *urlStr = @"your link to the server";

        NSMutableURLRequest *urlRequest = [[[NSMutableURLRequest alloc] init] autorelease];
        [urlRequest setURL:[NSURL URLWithString:urlStr]];

        [urlRequest setHTTPMethod:@"POST"];

        NSString *myboundary = [NSString stringWithFormat:@"---------------------------14737809831466499882746641449"];
        NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",myboundary];
        [urlRequest addValue:contentType forHTTPHeaderField: @"Content-Type"];

        NSMutableData *postData = [NSMutableData data];

        NSString *filePath = @"path to file you want to upload";

            NSData *zipData = [NSData dataWithContentsOfFile:filePath];
            if(zipData != nil){
                [postData appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", myboundary] dataUsingEncoding:NSUTF8StringEncoding]];
                [postData appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"%@\"\r\n", @"file.zip"]dataUsingEncoding:NSUTF8StringEncoding]];
                [postData appendData:[[NSString stringWithFormat:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
                [postData appendData:[NSData dataWithData:zipData]];
            }


        NSString *params =@"Any other parameters you want to send with the file";

            NSLog(@"%@",params);
            [postData appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", myboundary] dataUsingEncoding:NSUTF8StringEncoding]];
            [postData appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", @"params"] dataUsingEncoding:NSUTF8StringEncoding]];
            [postData appendData:[[NSString stringWithFormat:@"%@", params] dataUsingEncoding:NSUTF8StringEncoding]];


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

        [urlRequest setHTTPBody:postData];

        [urlRequest setValue:[SettingsDataStore getSharedInstance].cooike forHTTPHeaderField:@"Cookie"];

        responsedata = [[NSMutableData alloc] initWithData:nil];
        conn =  [[NSURLConnection alloc] initWithRequest:urlRequest delegate:self];

    }

    //NSURLConnection Delegate

    - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
        [responsedata appendData:data];
    }
    - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
        NSLog(@"error occured %@", [error localizedDescription]);
        [responseData release];
        [conn release];


    }

    - (void)connectionDidFinishLoading:(NSURLConnection *)connection {

        //Do something with responseData and release it

        [responseData release];
        [conn release];

    }

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在HttpPut上：您可以使用NSMutableURLRequest的三种方法，setValue:forHTTPHeaderField:，setHTTPMethod:，setHTTPBody。欢迎使用SO。请描述解决此问题的过程。只是不要写代码。@Rashad我修改了我的答案。请看一看。