前端编辑保存富文本,后端抛出异常JSON parse error: Unexpected character (’’ (code 92)),导致实体类接收不到数据,原因是富文本内容为html,包含特殊符号,实体类无法解析

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * XSS过滤
 */
public class XssFilter implements Filter {
	
	List<String> ignoreXSSURIList = new ArrayList<>();

	//将富文本保存编辑接口添加到忽略列表中
	public XssFilter(){
		ignoreXSSURIList.add("/sys/user/update");
		ignoreXSSURIList.add("/sys/user/save");
	}
	@Override
	public void init(FilterConfig config) throws ServletException {
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
		if(!ignoreXSSURIList.contains(((HttpServletRequest) request).getRequestURI())){
			XssHttpServletRequestWrapper xssRequest = new XssHttpServletRequestWrapper(
					(HttpServletRequest) request);
			chain.doFilter(xssRequest, response);
		}else {
			chain.doFilter(request, response);
		}
	}

	@Override
	public void destroy() {
	}

}