46 lines
1.1 KiB
Java
46 lines
1.1 KiB
Java
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package com.nis.util;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* 判断关键字的内容不能包含空格、tab、回车等不可见字符，即ANSII范围0x00至0x1F(0-31)及0x7F(127)。
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*
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* @author RenKaiGe-Office
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*
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*/
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public class AsciiJudge {
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public static void main(String[] args) {
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String str = "fdsf你说说你发的是佛山东方啥的飞sdf 啥打法是否(\\&)";
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boolean bool = asciiControlChar(str);
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System.out.println(bool);
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}
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/**
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* 判断字符串是否包含控制字符
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*
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* @param str
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* 需要验证的字符串,可以为空字符串但是不能为null
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* @return true代表包含控制字符,false代表不是控制字符或为null
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*/
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public static boolean asciiControlChar(String str) {
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if (null != str) {
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List<String> list = new ArrayList<String>();
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for (int i = 0; i < 32; i++) {
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list.add(String.valueOf(i));
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}
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list.add("127");
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char[] charArr = str.toCharArray();
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for (char c : charArr) {
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String num = Integer.valueOf(c).toString();
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if (list.contains(num)) {
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return true;
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}
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}
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}
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return false;
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}
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}
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