我正在研究 j2me 移动应用程序部分。我必须使用 http 连接和短信格式(使用短信网关)发送消息。
当我尝试执行此操作时,java.io.IOException: Resource limit exceeded for file handles
正在我的控制台中抛出。
如何避免这种情况?这是我的连接代码:
public boolean sendViaHTTP(String message)
{
System.out.println("enter HTTP Via");
HttpConnection httpConn = null;
String url = "http://xxx.com/test.php";
System.out.println("URL="+url);
InputStream is = null;
OutputStream os = null;
try
{
// Open an HTTP Connection object
httpConn = (HttpConnection)Connector.open(url);
// Setup HTTP Request to POST
httpConn.setRequestMethod(HttpConnection.POST);
httpConn.setRequestProperty("User-Agent",
"Profile/MIDP-2.0 Confirguration/CLDC-2.0");
httpConn.setRequestProperty("Accept_Language","en-US");
//Content-Type is must to pass parameters in POST Request
httpConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
String value = System.getProperty("com.nokia.network.access");
os = httpConn.openOutputStream();
String params;
params = "message=" + message;
os.write(params.getBytes());// input writes in server side
// Read Response from the Server
StringBuffer sb = new StringBuffer();
is = httpConn.openDataInputStream();
int chr;
while ((chr = is.read()) != -1)
sb.append((char) chr);
Response = sb.toString();
//switchDisplayable("", getForm());
//System.out.println("REsponse="+Response);
}
catch(IOException ex)
{
System.out.println(ex);
return false;
}
catch (Exception ex)
{
System.out.println(ex);
return false;
}
finally
{
try
{
if(is!= null)
is.close();
if(os != null)
os.close();
if(httpConn != null)
httpConn.close();
}
catch (Exception ex)
{
System.out.println(ex);
}
}
return true;
}