Question

I use following code to read data form http request. In general cases it works good, but some time "httpURLConnection.getResponseCode()" throws java.net.BindException: Address already in use: connect

     ............
     URL url = new URL( strUrl );
     httpURLConnection = (HttpURLConnection)url.openConnection();
     int responseCode = httpURLConnection.getResponseCode();
     char charData[] = new char[HTTP_READ_BLOCK_SIZE];
     isrData = new InputStreamReader( httpURLConnection.getInputStream(), strCharset );
     int iSize = isrData.read( charData, 0, HTTP_READ_BLOCK_SIZE );
     while( iSize > 0 ){
            sbData.append( charData, 0, iSize );
            iSize = isrData.read( charData, 0, HTTP_READ_BLOCK_SIZE );
     }
     .................





 finally{
            try{
                if( null != isrData ){
                    isrData.close();
                    isrData = null;
                }

                if( null != httpURLConnection ){
                    httpURLConnection.disconnect();
                    httpURLConnection = null;
                }

                strData = sbData.toString();
             }
            catch( Exception e2 ){
            }

The code running on Java 1.6, Tomcat 6. Thank you

Answer 1

摆脱脱节和关闭读者。你们正在离开当地港口,利用分散的吉大港山区连接,这是解决办法。

Answer 2

页: 1 <代码>Reader在完全读完后。这将腾出基本资源(表列等),供今后再使用。否则,该系统将失去资源。

The basic Java IO idiom for You case is the following:

Reader reader = null;
try {
    reader = new InputStreamReader(connection.getInputStream(), charset);
    // ...
} finally {
    if (reader != null) try { reader.close(); } catch (IOException logOrIgnore) {}
}

See also:

友情链接