从blackberry中的url获取数据

我有一个文件的url“http://www.example.com/123.aes“（它包含超过2MB的mp3文件数据）。现在我想从这个url获取数据。当我尝试使用http连接获取数据时，显示了一个错误-请求的实体太大。如何解决这个问题？。 我的代码如下：

 try {
    HttpConnection httpConn = (HttpConnection) Connector.open(httpURL, Connector.READ, true);
    final int iResponseCode = httpConn.getResponseCode();
    Dialog.alert(iResponseCode+"");
    InputStream is = httpConn.openInputStream();
    byte[] data = net.rim.device.api.io.IOUtilities.streamToBytes(is);
    String result = new String(data);
    Dialog.alert(result);

    FileConnection conn = (FileConnection)Connector.open("file:///store/home/user/pictures/"+System.currentTimeMillis()+".mp3", Connector.READ_WRITE);
    conn.create();
    OutputStream out = conn.openOutputStream();
    out.write(data);
    out.flush();
    out.close();
    conn.close(); 
   } catch (IOException e) {
    Dialog.alert(e+"");
    }

---

我还想将其保存为手机存储器中的mp3文件。

希望这对您有所帮助。尝试以下功能：

public static String getPage(String url) {    
    String response = "";
    try {
        HttpConnection conn = 
            (HttpConnection)Connector.open(url,Connector.READ_WRITE);
        InputStream input =conn.openInputStream(); 
        byte[] data = new byte[256];
        int len = 0;
        StringBuffer raw = new StringBuffer();
        while( -1 != (len = input.read(data))) {
            raw.append(new String(data, 0, len));
        }
        response = raw.toString();
        input.close();
    } 
    catch(Exception e) {
        Dialog.alert(e.toString());
    }
    return response;
}

此函数的示例调用

getPage("yourUrl;deviceside=true;interface=wifi");

---

最后我得到了答案-

ConnectionFactory connFact = new ConnectionFactory();
ConnectionDescriptor connDesc;
connDesc = connFact.getConnection(httpURL);
HttpConnection httpConn = (HttpConnection) connDesc.getConnection();
   try {
    httpConn.setRequestMethod(HttpConnection.GET);
    InputConnection inputConn = (InputConnection) httpConn;
    InputStream is = inputConn.openInputStream();
    byte[] data =IOUtilities.streamToBytes(is);
    Dialog.alert(original.toString());
    FileConnection conn = (FileConnection)Connector.open("file:///store/home/user/pictures/"+System.currentTimeMillis()+".mp3", Connector.READ_WRITE);
    conn.create();
    OutputStream out = conn.openOutputStream();
    out.write(original);
    out.flush();
    out.close();
    conn.close();  
   } catch (IOException e) {
      Dialog.alert(e+"");
   }

---

检查这些链接，

您已达到黑莓设备通过单个连接可以传输的最大数据量

-btsc.webapps.BlackBerry.com/btsc/KB10264，

http://supportforums.blackberry.com/t5/Java-Development/HTTP-413-Request-Entity-Too-Large/ta-p/445983

-.@Rupak It’s not working on designes too…抱歉，之前评论中发布的链接并不是问题的答案。事实上，你可以查看Hasmukh的答案，.@Rupak iam也得到了相同的结果->“请求的实体太大”.iam也得到了相同的结果->调试时“请求的实体太大”，在第StringBuffer raw=new StringBuffer（）行显示“java.lang.OutOfMemoryError calling toString”；