java获取服务器根目录

 * Gets the root path of server.
 *
 * @return the root path
 */
public static String () {
    String classPath = Thread.currentThread().getContextClassLoader()
      .getResource("").getPath();
    String rootPath = "";

    /** For Windows */
    if ("\".equals(File.separator)) {
        String path = classPath.substring(1, classPath.indexOf("/WEB-INF/classes"));
        rootPath = path.substring(0, path.lastIndexOf("/"));
        rootPath = rootPath.replace("/", "\");
    }

    /** For Linux */
    if ("/".equals(File.separator)) {
        String path = classPath.substring(0, classPath.indexOf("/WEB-INF/classes"));
        rootPath = path.substring(0, path.lastIndexOf("/"));
        rootPath = rootPath.replace("\", "/");
    }
    return rootPath;
}