| | |
| | | // 检测字符串是否符合用户名 |
| | | public static boolean checkingMsg(int len) { |
| | | boolean isValid = true; |
| | | if (5 < len && len < 21) { |
| | | isValid = false; |
| | | } else { |
| | | isValid = true; |
| | | } |
| | | isValid = 5 >= len || len >= 21; |
| | | return isValid; |
| | | } |
| | | |
| | |
| | | public static boolean isDouble(String value) { |
| | | try { |
| | | Double.parseDouble(value); |
| | | if (value.contains(".")) |
| | | return true; |
| | | return false; |
| | | return value.contains("."); |
| | | } catch (NumberFormatException e) { |
| | | return false; |
| | | } |
| | |
| | | |
| | | // 检测字符串是否为中文字符 |
| | | public static boolean isChinesrChar(String str) { |
| | | if (str.length() < str.getBytes().length) { |
| | | return true; |
| | | } else { |
| | | return false; |
| | | } |
| | | return str.length() < str.getBytes().length; |
| | | } |
| | | |
| | | // 判断字符串是否为邮箱 |