java - Eclipse BlackBerry 应用程序中未找到源错误

Question

我是 BlackBerry 应用程序开发新手。在 httpcon.getResponseCode() 方法中的 HttpConnection 期间，我遇到一个愚蠢的错误，给出了未找到源错误。

请问有人能解决这个错误吗？

这是我的方法:

        net.rim.device.api.io.transport.ConnectionFactory cf = new   net.rim.device.api.io.transport.ConnectionFactory();
        httpConn = (HttpConnection) cf.getConnection(url).getConnection();

        httpConn.setRequestMethod(HttpConnection.POST);
        httpConn.setRequestProperty("User-Agent",
                "Profile/MIDP-2.0 Confirguration/CLDC-1.0");
        httpConn.setRequestProperty("Accept_Language", "en-US");
        httpConn.setRequestProperty("Content-Type",
                "application/x-www-form-urlencoded");

        httpConn.setRequestProperty("Content-Length",
                Integer.toString(postData.length));
        os = httpConn.openOutputStream();
        os.write(("LoginID=yahoo@sol.com&Password=yah123")
                .getBytes("UTF-8"));
        os.flush();
        os.close();
        try {
            responseCode = httpConn.getResponseCode();
        } catch (IOException ex1) {
            //check if it's eof, if yes retrieve code again
            if (-1 != ex1.getMessage().indexOf("EOF")) {
                try {
                    responseCode = httpConn.getResponseCode();
                } catch (IOException ex2) {
                    System.out.println(ex2.getMessage());
                    // handle exception
                }
            } else {
                System.out.println(ex1.getMessage());
                // handle exception
            }
        }
        int status = httpConn.getResponseCode();

        if (status == HttpConnection.HTTP_OK) {

            InputStream input = httpConn.openInputStream();

            byte[] bytes = IOUtilities.streamToBytes(input);

            StringBuffer raw = new StringBuffer(new String(bytes));
            raw.insert(0, "bytes received]\n");
            raw.insert(0, bytes.length);
            raw.insert(0, '[');

            url = raw.toString();

            input.close();
        } else {
            url = "response code = " + status;
        }
        httpConn.close();
    } catch (IOCancelledException e) {
        System.out.println(e.toString());
        return "";
    } catch (IOException e) {

        return "";
    }

    return "";
}

更新:我并不想进入getResponseCode()。 Eclipse 将在此时停止执行，并显示未找到源错误。

Answer 1

@Nate yes we are step into method that time only we are getting Run Time Error.Error is displayed When Getresponsecode() is called

你的 Eclipse 错误看起来像这样吗？

getResponseCode() 是 HttpConnection 类中的一个方法。这是 RIM 的代码，不是您的。您通常不需要单步进入该代码。调试时只需跨过该行即可。您唯一应该希望看到的是该方法的结果，而不是内部发生的情况。

即使您的项目中包含 net_rim_api.jar，也只是为您提供 RIM 类的二进制版本，包括 HttpConnection。它不提供该类的 Java源代码。为了进入方法，您还需要有源代码。