/**
 * 确认字符串是否为email格式
 *
 * @param strEmail
 * @return
 */
public static boolean isEmail(String strEmail) {
    String strPattern = "^[a-zA-Z][\\w\\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\\w\\.-]*[a-zA-Z0-9]\\.[a-zA-Z][a-zA-Z\\.]*[a-zA-Z]$";
    Pattern p = Pattern.compile(strPattern);
    Matcher m = p.matcher(strEmail);
    return m.matches();
}