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懒羊羊

2024-01-31 e57a8990ae56f657a59c435a0613c5f7a8728003

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package com.jcdm.common.xss;
 
import com.jcdm.common.utils.StringUtils;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
 
/**
 * 自定义xss校验注解实现
 * 
 * @author jc
 */
public class XssValidator implements ConstraintValidator<Xss, String>
{
    private static final String HTML_PATTERN = "<(\\S*?)[^>]*>.*?|<.*? />";
 
    @Override
    public boolean isValid(String value, ConstraintValidatorContext constraintValidatorContext)
    {
        if (StringUtils.isBlank(value))
        {
            return true;
        }
        return !containsHtml(value);
    }
 
    public static boolean containsHtml(String value)
    {
        Pattern pattern = Pattern.compile(HTML_PATTERN);
        Matcher matcher = pattern.matcher(value);
        return matcher.matches();
    }
}