Question

我正在尝试通过HttpURLConnection将照片上传到我的个人资料中。我有user_status，user_photos，offline_access，publish_stream

的访问令牌

我的代码中的示例：

url = new URL("https://graph.facebook.com/me/photos");

String content =
    "access_token=" + URLEncoder.encode ("my_token") +
    "&message=" + URLEncoder.encode ("SUNT  !!!")+
    "&url=" + URLEncoder.encode("file:///D:\\personale\\Images\\P0030_07-02-11_00.JPG");

当我提出请求时，我收到以下错误

{"error":{"message":"file:\/\/\/D:\\personale\\Images\\P0030_07-02-11_00.JPG is an internal url, but this is an external request.","type":"CurlUrlInvalidException"}}

我可以使用文件网址从我的电脑上传文件吗？如何使用文件中的字节数组上传文件？

非常感谢！

Answer 1

The solution, as posted by dnp：

非常感谢！

这是解决方案：

public class Main2 { 

static final String BOUNDARY = "----------V2ymHFg03ehbqgZCaKO6jy"; 

public static void main(String [] args) throws IOException{ 
    URL url; 
    HttpURLConnection urlConn; 
    DataOutputStream printout; 
    DataInputStream input; 

    //------------------------------------------------------------------- 

    File image = new File("D:/personale/Images/P1025[01]_03-07-11.JPG"); 


    FileInputStream imgStream = new FileInputStream(image); 

    byte [] buffer = new byte[(int) image.length()]; 

    imgStream.read(buffer); 

    //------------------------------------------------------------------- 


    Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("10.18.1.1", 4444)); 

    //url = new URL ("https://graph.facebook.com/me/feed"); 
    url = new URL("https://graph.facebook.com/me/photos?access_token=AAACkMOZA41QEBACsafBxqVfXX54JqGLQSaE6YQ062NuTe3XUZBTdTEvy3R2H9Yr4PZA9r38JvLni7r1hYLuZCnBZAAPPH3krMMSKtIraiswZCiIZBu0nyYT"); 
    System.out.println("Before Open Connection"); 

    urlConn = (HttpURLConnection) url.openConnection(proxy); 

    urlConn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + getBoundaryString()); 

    urlConn.setDoOutput (true); 
    urlConn.setUseCaches (false); 
    urlConn.setRequestMethod("POST"); 

   // String content = "access_token=" + URLEncoder.encode ("AAACkMOZA41QEBAHQHUyYcMsLAewOYIe1j5dlOVOlMZBm6h9rvCQEFhmcBHg7ETHrdlrgv4sau573xMVuxIt8DzRxKFuqRqqBskDvOZA9iIkZCdPyI4Bu"); 

    String boundary = getBoundaryString(); 

    String boundaryMessage = getBoundaryMessage(boundary, "upload_field", "P1025[01]_03-07-11.JPG", "image/png"); 

    String endBoundary = "\r\n--" + boundary + "--\r\n"; 

    ByteArrayOutputStream bos = new ByteArrayOutputStream(); 

    bos.write(boundaryMessage.getBytes()); 

    bos.write(buffer); 

    bos.write(endBoundary.getBytes()); 

    printout = new DataOutputStream (urlConn.getOutputStream ()); 

    //printout.writeBytes(content); 

    printout.write(bos.toByteArray()); 

    printout.flush (); 
    printout.close (); 
    // Get response data. 



    //input = new DataInputStream (urlConn.getInputStream ()); 

    if (urlConn.getResponseCode() == 400 || urlConn.getResponseCode() == 500) { 
        input = new DataInputStream (urlConn.getErrorStream()); 
    } else { 
        input = new DataInputStream (urlConn.getInputStream()); 
    } 

    String str; 
    while (null != ((str = input.readLine()))) 
    { 
        System.out.println (str); 
    } 
    input.close (); 

} 

public static String getBoundaryString() 
{ 
    return BOUNDARY; 
} 

public static String getBoundaryMessage(String boundary, String fileField, String fileName, String fileType) 
{ 
    StringBuffer res = new StringBuffer("--").append(boundary).append("\r\n"); 
    res.append("Content-Disposition: form-data; name=\"").append(fileField).append("\"; filename=\"").append(fileName).append("\"\r\n")  
        .append("Content-Type: ").append(fileType).append("\r\n\r\n"); 

    return res.toString(); 
} 
}

Answer 2

您可以使用以下API在默认相册中的FB上传图像

http://code.google.com/p/socialauth/

最新版本3.0具有此功能。

使用Java中的HTTP请求上传Facebook照片

2 个答案: