代码中一些常见的小片段
1,检验邮件格式是否正确
public final static String REG_email = "^[\\w\\d]+@[\\w\\d]+(\\.[\\w\\d]+)+$"; Pattern pattern = Pattern.compile(RegExpression.REG_email); Matcher m = pattern.matcher(email); if (!m.find()) { System.out.println("Wrong email format."); }