public static String DEPLOY_PATH = null;
static
{
String CurrentClassFilePath = Constant.class.getResource("").getPath();
int lastpath = CurrentClassFilePath.lastIndexOf("WEB-INF/");
DEPLOY_PATH = CurrentClassFilePath.substring(0, lastpath);
}
原文：http://www.cnblogs.com/yxwkf/p/5196415.html