import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

/**
 * xss過濾器
 */
@WebFilter(filterName="xssFilter",urlPatterns="/*")
public class XssFilter implements Filter {

    FilterConfig filterConfig = null;

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        this.filterConfig = filterConfig;
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
        //對請求進行攔截,防xss處理
        chain.doFilter(new XssHttpServletRequestWrapper((HttpServletRequest) request), response);
    }

    @Override
    public void destroy() {
        this.filterConfig = null;
    }
}

import com.juphoon.iron.nbntax.common.utils.FilterUtil;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import java.util.regex.Pattern;

import static java.util.regex.Pattern.*;

/**
 * xss請求介面卡
 */
public class XssHttpServletRequestWrapper extends HttpServletRequestWrapper {

    public XssHttpServletRequestWrapper(HttpServletRequest request) {
        super(request);
    }

    /**
     * 對陣列引數進行特殊字元過濾
     */
    @Override
    public String[] getParameterValues(String name) {
        String[] values = super.getParameterValues(name);
        if (values == null) {
            return null;
        }
        int count = values.length;
        String[] encodedValues = new String[count];
        for (int i = 0; i < count; i++) {
            encodedValues[i] = cleanXSS(values[i]);
        }
        return encodedValues;
    }

    /**
     * 對引數中特殊字元進行過濾
     */
    @Override
    public String getParameter(String name) {
        String value = super.getParameter(name);
        if (value == null) {
            return null;
        }
        return cleanXSS(value);
    }

    /**
     * 獲取attribute,特殊字元過濾
     */
    @Override
    public Object getAttribute(String name) {
        Object value = super.getAttribute(name);
        if (value != null && value instanceof String) {
            cleanXSS((String) value);
        }
        return value;
    }

    /**
     * 對請求頭部進行特殊字元過濾
     */
    @Override
    public String getHeader(String name) {
        String value = super.getHeader(name);
        if (value == null) {
            return null;
        }
        return cleanXSS(value);
    }

    /**
     * 轉義字元,使用該方法存在一定的弊端
     * 
     * @param value
     * @return
     */
    private String cleanXSS2(String value) {
        // 移除特殊標籤
        value = value.replaceAll("<", "&lt;").replaceAll(">", "&gt;");
        value = value.replaceAll("\\(", "&#40;").replaceAll("\\)", "&#41;");
        value = value.replaceAll("'", "&#39;");
        value = value.replaceAll("eval\\((.*)\\)", "");
        value = value.replaceAll("[\\\"\\\'][\\s]*javascript:(.*)[\\\"\\\']", "\"\"");
        value = value.replaceAll("script", "");
        return value;
    }

    private String cleanXSS(String value) {
        return FilterUtil.cleanXSS(value);
    }
}

最後在啟動類上添加註解

@ServletComponentScan