/**
* 判断链接是否有效
* 输入链接
* 返回true或者false
*/
public static boolean isValid(String strLink){
URL url=null;
try {
url = new URL(strLink);
HttpURLConnection connt = (HttpURLConnection)url.openConnection();
connt.setRequestMethod("HEAD");
String strMessage = connt.getResponseMessage();
if(strMessage.compareTo("Not Found") == 0){
return false;
}
connt.disconnect();
}catch(Exception e){
logger.error("验证是否是有效链接失败!");
return false;
}
return true;
}