1.正则表达式的字符串表示 String mobileRegex = "^1(3|4|5|7|8)\\d{9}$"; 字符^意义：表示匹配的字符必须在最前边； 字符$意义：表示待匹配串的结束位置； 字符\d{5,9}意义：\d是数字，{5,9}是5-9位，如果只是验证手机号，且校验的正则表达式如下： /^1[3|5|8][0-9]\d{4,8}$/ ； 不妨写成 /^1[3|5|8]\d{9}$/ ； 2.对手机号字符串的校验 String mobileRegex = "^1(3|4|5|7|8)\\d{9}$"; if (csprop.matches(mobileRegex)){     *******; }else {     *******; } 注： String.java /**      * Tells whether or not this string matches the given regular expression.      *      *

An invocation of this method of the form      * str.matches(regex) yields exactly the      * same result as the expression      *      *

{@link java.util.regex.Pattern}.{@link      * java.util.regex.Pattern#matches(String,CharSequence)      * matches}(regex, str)

*      * @param   regex      *          the regular expression to which this string is to be matched      *      * @return  true if, and only if, this string matches the      *          given regular expression      *      * @throws  PatternSyntaxException      *          if the regular expression's syntax is invalid      *      * @see java.util.regex.Pattern      *      * @since 1.4      * @spec JSR-51      */     public boolean matches(String regex) {         return Pattern.matches(regex, this);     }      Pattern.java /**      * Compiles the given regular expression and attempts to match the given      * input against it.      *      *

An invocation of this convenience method of the form      *      *

       * Pattern.matches(regex, input);

*      * behaves in exactly the same way as the expression      *      *

       * Pattern.compile(regex).matcher(input).matches()

*      *

If a pattern is to be used multiple times, compiling it once and reusing      * it will be more efficient than invoking this method each time.

*      * @param  regex      *         The expression to be compiled      *      * @param  input      *         The character sequence to be matched      *      * @throws  PatternSyntaxException      *          If the expression's syntax is invalid      */     public static boolean matches(String regex, CharSequence input) {         Pattern p = Pattern.compile(regex);         Matcher m = p.matcher(input);         return m.matches();     }