工具类：CharUtil
package com.etc.util;
import java.util.regex.Pattern;
public class CharUtil {
public static void main(String[] args) {
String[] strArr = new String[] { "www.micmiu.com", "!@#$%^&*()_+{}[]|\"'?/:;<>,.", "！￥……（）——：；“”‘’《》，。？、", "不要啊", "やめて", "韩佳人", "???" };
for (String str : strArr) {
System.out.println("===========> 测试字符串：" + str);
System.out.println("正则判断结果：" + isChineseByREG(str) + " -- " + isChineseByName(str));
System.out.println("Unicode判断结果 ：" + isChinese(str));
System.out.println("详细判断列表：");
char[] ch = str.toCharArray();
for (int i = 0; i < ch.length; i++) {
char c = ch[i];
System.out.println(c + " --> " + (isChinese(c) ? "是" : "否"));
}
}
}
// 根据Unicode编码完美的判断中文汉字和符号
private static boolean isChinese(char c) {
Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B
|| ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS
|| ub == Character.UnicodeBlock.GENERAL_PUNCTUATION) {
return true;
}
return false;
}
// 完整的判断中文汉字和符号
public static boolean isChinese(String strName) {
char[] ch = strName.toCharArray();
for (int i = 0; i < ch.length; i++) {
char c = ch[i];
if (isChinese(c)) {
return true;
}
}
return false;
}
// 只能判断部分CJK字符（CJK统一汉字）
public static boolean isChineseByREG(String str) {
if (str == null) {
return false;
}
Pattern pattern = Pattern.compile("[\\u4E00-\\u9FBF]+");
return pattern.matcher(str.trim()).find();
}
// 只能判断部分CJK字符（CJK统一汉字）
public static boolean isChineseByName(String str) {
if (str == null) {
return false;
}
// 大小写不同：\\p 表示包含，\\P 表示不包含
// \\p{Cn} 的意思为 Unicode 中未被定义字符的编码，\\P{Cn} 就表示 Unicode中已经被定义字符的编码
String reg = "\\p{InCJK Unified Ideographs}&&\\P{Cn}";
Pattern pattern = Pattern.compile(reg);
return pattern.matcher(str.trim()).find();
}
}
MyUsernameValidator
package com.etc.validator;
import com.etc.util.CharUtil;
import com.opensymphony.xwork2.validator.ValidationException;
import com.opensymphony.xwork2.validator.validators.FieldValidatorSupport;
public class MyUsernameValidator extends FieldValidatorSupport
{
//执行校验
public void validate(Object ctx) throws ValidationException {
//1 获取输入的字段名
String field = this.getFieldName();
//2 获取该字段的值
String value = (String) this.getFieldValue(field,ctx);
//3 如果含有中文，则报错
if(CharUtil.isChinese(value))
{
this.addFieldError(field, ctx);
}
}
}
