試圖從Objective-C文本構建多部分構建Java中的MultiPart實體

Question

我正在將其他人的iOS應用程序轉換爲android，並且遇到了無法制作此多部分實體的正面或反面的問題創建。

NSMutableData *body = [NSMutableData data]; 

    // file 
    NSData *imageData = UIImageJPEGRepresentation(image, 90); 

    NSString *boundary = [NSString stringWithFormat:@"---------------------------14737809831466499882746641449"]; 
    [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[[NSString stringWithFormat:@"Content-Disposition: attachment; name=\"imagefile\"; filename=\"user_%@.jpg\"\r\n",userID] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[[NSString stringWithFormat:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[NSData dataWithData:imageData]]; 
    [body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 


    // UserID 
    [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userid\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[[NSString stringWithString:userID] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 

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

，我覺得看起來像這樣

---------------------------14737809831466499882746641449 
Content-Disposition: attachment; 
name=\"imagefile\"; filename=\"user_" + userID +".jpg\" 
Content-Type: application/octet-stream 
imagedata 

---------------------------14737809831466499882746641449 
Content-Disposition: form-data; 
name=\"userid\" 

userID 

---------------------------14737809831466499882746641449-- 

現在我嘗試使用MultiPartEntity

ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
     image.compress(Bitmap.CompressFormat.JPEG, 100, baos); 
     byte[] imageBytes = baos.toByteArray(); 

HttpClient httpClient = new DefaultHttpClient(); 
     HttpPost postRequest = new HttpPost(url); 

     MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE, null, Charset.forName("UTF-8")); 

重建這在Java和我被困在盤算相當於多文本。

任何幫助，將不勝感激。

Answer 1

正是這種

 entity.addPart("imagefile", new ByteArrayBody(imageBytes, "image/jpeg", "user_" + userId + ".jpg")); 
    entity.addPart("userid", new StringBody(userId)); 

這麼多簡單和容易，只是要嘗試30件不同的事情做得正確。