网络爬虫，HttpURLConnection连接重置问题！

[idea_sh]

/**
* 根据 url 获得源码
*
* @param 网页地址
* @return 源码字符串
*/
public static String GetHtmlByUrl(String htmlUrl) {
htmlCode.setLength(0);
URL url = null;
HttpURLConnection conn = null;
BufferedReader br = null;
InputStreamReader isr = null;
InputStream is = null;
int responseCode;
String readerLine = "";

try {
url = new URL(htmlUrl);
conn = (HttpURLConnection) url.openConnection();
simulationBrowser(conn);// 模拟浏览器

responseCode = conn.getResponseCode();
// TODO:如果得到返回html代码，则读取
if (responseCode == 200) {
is = conn.getInputStream();
isr = new InputStreamReader(is);
br = new BufferedReader(isr);
while ((readerLine = br.readLine()) != null) {
htmlCode.append(readerLine);
}
} else {
System.out.println(WebSpiderConstant.responseStrError
+ responseCode);
}
return htmlCode.toString();
} catch (Exception e) {
WebSpiderConstant.RETRY_COUNT++;
System.out.println(WebSpiderConstant.connStrError
+ WebSpiderConstant.RETRY_COUNT);
if (WebSpiderConstant.RETRY_COUNT < WebSpiderConstant.RETRY_COUNT_BREAK) {
try {
Thread.sleep(2000);
} catch (InterruptedException e1) {
System.err.println(WebSpiderConstant.EXCEPTION_ROLLBACK
+ e1.getMessage());
e1.printStackTrace();
}

return GetHtmlByUrl(htmlUrl);
} else {
System.out.println(WebSpiderConstant.ERROR_HTTPCONNECTION);
}
} finally {

try {
if (br != null) {
br.close();
br = null;
}
if (isr != null) {
isr.close();
isr = null;
}
if (is != null) {
is.close();
is = null;
}

} catch (IOException e) {
System.out.println(WebSpiderConstant.ERROR_CLOSEIO);
e.printStackTrace();
}
if (conn != null) {
conn.disconnect();
conn = null;
}
}
return htmlCode.toString();
}

[idea_sh]

获取页面源代码，为了防止 连接失败，所以加了判断，如果出现异常，就再去调用这个方法，然后返回值。这样写有没有问题？但总是出现 java.net.SocketException: Connection reset ,敬请高人指点！

[idea_sh]

等答案，等答案

[tony4geek]

是不是没读完你重置了。/