現(xiàn)在需要解決的問題是，針對某些富文本的接口，需要保留常用的html富文本標簽，不能完全過濾。

針對某些接口，或者url這個好辦，直接在過濾時對uri地址進行篩選。

@Override
    protected void doFilterInternal(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, FilterChain filterChain) throws ServletException, IOException {

        String uri = httpServletRequest.getRequestURI();
        if(uri.startsWith("/filter/richText")){
            //走富文本過濾器
            RichTextParamtersWrapper wrapper = new RichTextParamtersWrapper((HttpServletRequest) httpServletRequest);
            filterChain.doFilter(wrapper, httpServletResponse);
            return;
        }
        //其他過濾器
        ModifyParametersWrapper wrapper = new ModifyParametersWrapper((HttpServletRequest) httpServletRequest);
        filterChain.doFilter(wrapper, httpServletResponse);
    }

難辦的是針對富文本常見的標簽，正則是不會寫的，這輩子都寫不來正則( ╯□╰ )
搜了一下，貌似可以用Jsoup這個東西。它主要功能是解析html，常見是用來做爬蟲的，我們可以通過加白名單（黑名單不建議，白名單的把控更好）的方式實現(xiàn)富文本的過濾。
參考文檔
https://blog.csdn.net/skyrunner06/article/details/25876693
添加的依賴

 <dependency>
       <groupId>org.jsoup</groupId>
       <artifactId>jsoup</artifactId>
       <version>1.8.3</version>
</dependency>

通過加載白名單配置文件的方式（改起來方便），將允許的標簽添加到Jsoup的WhiteList規(guī)則里。
public class JsoupUtil {

    public static Whitelist whitelist = null;

    /**
     * 配置Jsoup標簽白名單
     * @return
     */
    public static Whitelist initWhiteList() {
        if (whitelist == null) synchronized (new Object()) {
            whitelist = Whitelist.relaxed();
            String jsonString = null;
            Resource resource = new ClassPathResource("/whitelist.conf");
            File file = null;
            InputStream input = null;
            Writer output = null;
            try {
                file = resource.getFile();
                input = new FileInputStream(file);
                output = new StringWriter();
                IOUtils.copy(input, output);
                jsonString = output.toString();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } finally {
                if (input != null) {
                    IOUtils.closeQuietly(input);
                }
                if (output != null) {
                    IOUtils.closeQuietly(output);
                }
            }

            JSONObject whiteJson = JSONObject.parseObject(jsonString);
            JSONObject whiteListMap = whiteJson.getJSONObject("whiteList");
            JSONObject protocolsMap = whiteJson.getJSONObject("protocols");

            for (Map.Entry<String, Object> entry : whiteListMap.entrySet()) {
                String tag = entry.getKey();

                whitelist.addTags(tag);
                JSONObject whiteListMap2 = (JSONObject) entry.getValue();

                for (Map.Entry<String, Object> entry2 : whiteListMap2.entrySet()) {
                    String attribute = entry2.getKey();
                    whitelist.addAttributes(tag, attribute);
                }
            }
            for (Map.Entry<String, Object> entry : protocolsMap.entrySet()) {
                String tag = entry.getKey().substring(0, entry.getKey().indexOf("."));
                String key = entry.getKey().substring(entry.getKey().indexOf(".") + 1, entry.getKey().length());

                JSONArray jsonArray = JSONArray.parseArray(entry.getValue().toString());

                for (int i = 0; i < jsonArray.size(); i++) {
                    String value = jsonArray.getString(i);
                    //給URL屬性添加協(xié)議。例如： addProtocols("a", "href", "ftp", "http", "https")標簽a的href鍵可以指向的協(xié)議有ftp、http、https
                    whitelist.addProtocols(tag, key, value);
                }
            }
        }
        return whitelist;
    }
}

使用時：
 /**
     * 針對富文本的字符替換
     * 只有在白名單中出現(xiàn)的html標簽才會被保留
     * @param value
     * @return
     */
    public static String richText(String value){
        JsoupUtil.initWhiteList();
        value = Jsoup.clean(value, "", JsoupUtil.whitelist);
        return value;
    }

最后是白名單配置文件

{
    "whiteList":{
        "a":{
            "href":"",
            "title":""
        },
        "b":{

        },
        "blockquote":{
            "cite":""
        },
        "br":{

        },
        "caption":{

        },
        "cite":{

        },
        "code":{

        },
        "col":{
            "span":"",
            "width":""
        },
        "colgroup":{
            "span":"",
            "width":""
        },
        "dd":{

        },
        "div":{
            "style":"/^text-align:\\s*(left|right|center);?\\s*$/i"
        },
        "dl":{

        },
        "dt":{

        },
        "em":{

        },
        "h1":{

        },
        "h2":{

        },
        "h3":{

        },
        "h4":{

        },
        "h5":{

        },
        "h6":{

        },
        "i":{

        },
        "img":{
            "align":"",
            "alt":"",
            "height":"",
            "src":"",
            "title":"",
            "width":""
        },
        "li":{
            "class":"",
            "style":"/^text-align:\\s*(left|right|center);?\\s*$/i"
        },
        "ol":{
            "start":"",
            "type":""
        },
        "p":{
              "style":"/^text-align:\\s*(left|right|center);?\\s*$/i"
            },
        "pre":{

        },
        "q":{
            "cite":""
        },
        "small":{

        },
        "span":{
            "style":"/^\\s*font-family\\s*:\\s*(('|\\\"|\"|')?(楷體|楷體_GB2312|宋體|微軟雅黑|黑體|,|\\s|\\w|sans-serif)('|\\\"|\"|')?)+;?\\s*|\\s*(color|font-size|background-color)\\s*:\\s*(#\\w*|[\\w\\s]*|rgb\\s*\\(\\s*\\d+\\s*,\\s*\\d+\\s*,\\s*\\d+\\s*\\));?\\s*|\\s*text-decoration\\s*:\\s*(underline|overline|line-through|blink)\\s*;?\\s*$/i"

         },

        "strike":{

        },
        "strong":{

        },
        "sub":{

        },
        "sup":{

        },
        "table":{
            "summary":"",
            "width":""
        },
        "tbody":{

        },
        "td":{
            "abbr":"",
            "axis":"",
            "colspan":"",
            "rowspan":"",
            "width":""
        },
        "tfoot":{

        },
        "th":{
            "abbr":"",
            "axis":"",
            "colspan":"",
            "rowspan":"",
            "scope":"",
            "width":""
        },
        "thead":{

        },
        "tr":{

        },
        "u":{

        },
        "ul":{
            "type":"",
            "class":""
        }
    },
    "protocols":{
        "a.href":[
            "ftp",
            "http",
            "https",
            "mailto"
        ],
        "blockquote.cite":[
            "http",
            "https"
        ],
        "cite.cite":[
            "http",
            "https"
        ],
        "img.src":[
            "http",
            "https"
        ],
        "q.cite":[
            "http",
            "https"
        ]
    }
}

一個針對富文本的過濾器get√