这篇文章主要为大家展示了“java配置多个过滤器优先级是什么”，内容简而易懂，条理清晰，希望能够帮助大家解决疑惑，下面让小编带领大家一起研究并学习一下“java配置多个过滤器优先级是什么”这篇文章吧。
过滤器配置：
package cn.ask.filter;import javax.servlet.DispatcherType; import org.springframework.boot.web.servlet.FilterRegistrationBean;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.web.filter.DelegatingFilterProxy; @SuppressWarnings("all")@Configurationpublic class FilterConfig {@Beanpublic FilterRegistrationBean xssFilterRegistration() {FilterRegistrationBean registration = new FilterRegistrationBean();registration.setDispatcherTypes(DispatcherType.REQUEST);registration.setFilter(new XssFilter());registration.addUrlPatterns("@Beanpublic FilterRegistrationBean cookieRegistration() {FilterRegistrationBean registration = new FilterRegistrationBean();registration.setDispatcherTypes(DispatcherType.REQUEST);registration.setFilter(new CookieFilter());registration.addUrlPatterns("public class CookieFilter implements Filter { public CookieFilter() { // TODO Auto-generated constructor stub } public void destroy() {// TODO Auto-generated method stub} public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {HttpServletRequest req = (HttpServletRequest) request;String tokenHeader = req.getHeader("token");if(StringUtils.isBlank(tokenHeader)) {Cookie[] cookies = req.getCookies();if (cookies != null && cookies.length > 0) {for (int i = 0; i < cookies.length; i++) {String name = cookies[i].getName();String value = cookies[i].getValue();if ("user_accesstoken".equals(name)) { // 用户tokenreq.setAttribute("token", URLDecoder.decode(value, "utf-8"));}if ("user_avatar".equals(name)) { // 头像req.setAttribute("avatar", URLDecoder.decode(value, "utf-8"));}if ("user_nickname".equals(name)) { // 昵称req.setAttribute("nickname", URLDecoder.decode(value, "utf-8"));}String token = (String) req.getAttribute("token");if (StringUtils.isBlank(token)) {req.setAttribute("isLogin", "no");} else {req.setAttribute("isLogin", "yes");}}}else {req.removeAttribute("token");req.removeAttribute("avatar");req.removeAttribute("nickname");req.setAttribute("isLogin", "no");}} else {req.setAttribute("token", tokenHeader);}chain.doFilter(request, response);} public void init(FilterConfig fConfig) throws ServletException {// TODO Auto-generated method stub} }常用过滤器之二：
xss过滤以及防html注入过滤（包括过滤敏感词）
package cn.ask.filter; import java.io.IOException; import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletException;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import javax.servlet.http.HttpServletRequest; public class XssFilter implements Filter { @Overridepublic void init(FilterConfig config) throws ServletException {} @Overridepublic void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {XssHttpServletRequestWrapper xssRequest = new XssHttpServletRequestWrapper((HttpServletRequest) request);chain.doFilter(xssRequest, response);} @Overridepublic void destroy() {} }package cn.ask.filter;import java.io.ByteArrayInputStream;import java.io.IOException;import java.util.LinkedHashMap;import java.util.Map;import javax.servlet.ReadListener;import javax.servlet.ServletInputStream;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletRequestWrapper; import org.apache.commons.io.IOUtils;import org.apache.commons.lang3.StringUtils;import org.springframework.http.HttpHeaders;import org.springframework.http.MediaType; public class XssHttpServletRequestWrapper extends HttpServletRequestWrapper { HttpServletRequest orgRequest; private final static HtmlFilter HTMLFILTER = new HtmlFilter(); public XssHttpServletRequestWrapper(HttpServletRequest request) { super(request); orgRequest = request; } @Override public ServletInputStream getInputStream() throws IOException { //非json类型，直接返回 if(!super.getHeader(HttpHeaders.CONTENT_TYPE).equalsIgnoreCase(MediaType.APPLICATION_JSON_VALUE)){ return super.getInputStream(); } //为空，直接返回 String json = IOUtils.toString(super.getInputStream(), "utf-8"); if (StringUtils.isBlank(json)) { return super.getInputStream(); } //xss过滤 json = xssEncode(json); final ByteArrayInputStream bis = new ByteArrayInputStream(json.getBytes()); return new ServletInputStream() { @Override public boolean isFinished() { return true; } @Override public boolean isReady() { return true; } @Override public void setReadListener(ReadListener readListener) { } @Override public int read() throws IOException { return bis.read(); } }; } @Override public String getParameter(String name) { String value = super.getParameter(xssEncode(name)); if (StringUtils.isNotBlank(value)) { value = xssEncode(value); } return value; } @Override public String[] getParameterValues(String name) { String[] parameters = super.getParameterValues(name); if (parameters == null || parameters.length == 0) { return null; } for (int i = 0; i < parameters.length; i++) { parameters[i] = xssEncode(parameters[i]); } return parameters; } @Override public Map<String,String[]> getParameterMap() { Map<String,String[]> map = new LinkedHashMap<>(); Map<String,String[]> parameters = super.getParameterMap(); for (String key : parameters.keySet()) { String[] values = parameters.get(key); for (int i = 0; i < values.length; i++) { values[i] = xssEncode(values[i]); } map.put(key, values); } return map; } @Override public String getHeader(String name) { String value = super.getHeader(xssEncode(name)); if (StringUtils.isNotBlank(value)) { value = xssEncode(value); } return value; } //富文本内容放行 private String xssEncode(String input) { if(!input.startsWith("<p")&&!input.startsWith("<ol")&&!input.startsWith("<ul")&&!input.startsWith("<hr/>")) { input=HTMLFILTER.filter(input); } //敏感词过滤 input=SensitiveWordUtils.getSensitiveWordUtils().replaceSensitiveWord(input, '*', 2); return input; } public HttpServletRequest getOrgRequest() { return orgRequest; } public static HttpServletRequest getOrgRequest(HttpServletRequest request) { if (request instanceof XssHttpServletRequestWrapper) { return ((XssHttpServletRequestWrapper) request).getOrgRequest(); } return request; } }package cn.ask.filter; import java.util.*;import java.util.concurrent.ConcurrentHashMap;import java.util.concurrent.ConcurrentMap;import java.util.logging.Logger;import java.util.regex.Matcher;import java.util.regex.Pattern; public final class HtmlFilter { private static final int REGEX_FLAGS_SI = Pattern.CASE_INSENSITIVE | Pattern.DOTALL; private static final Pattern P_COMMENTS = Pattern.compile("<!--(.*?)-->", Pattern.DOTALL); private static final Pattern P_COMMENT = Pattern.compile("^!--(.*)--$", REGEX_FLAGS_SI); private static final Pattern P_TAGS = Pattern.compile("<(.*?)>", Pattern.DOTALL); private static final Pattern P_END_TAG = Pattern.compile("^/([a-z0-9]+)", REGEX_FLAGS_SI); private static final Pattern P_START_TAG = Pattern.compile("^([a-z0-9]+)(.*?)(/?)$", REGEX_FLAGS_SI); private static final Pattern P_QUOTED_ATTRIBUTES = Pattern.compile("([a-z0-9]+)=([\"'])(.*?)\\2", REGEX_FLAGS_SI); private static final Pattern P_UNQUOTED_ATTRIBUTES = Pattern.compile("([a-z0-9]+)(=)([^\"\\s']+)", REGEX_FLAGS_SI); private static final Pattern P_PROTOCOL = Pattern.compile("^([^:]+):", REGEX_FLAGS_SI); private static final Pattern P_ENTITY = Pattern.compile("&#(\\d+);?"); private static final Pattern P_ENTITY_UNICODE = Pattern.compile("&#x([0-9a-f]+);?"); private static final Pattern P_ENCODE = Pattern.compile("%([0-9a-f]{2});?"); private static final Pattern P_VALID_ENTITIES = Pattern.compile("&([^&;]*)(?=(;|&|$))"); private static final Pattern P_VALID_QUOTES = Pattern.compile("(>|^)([^<]+?)(<|$)", Pattern.DOTALL); private static final Pattern P_END_ARROW = Pattern.compile("^>"); private static final Pattern P_BODY_TO_END = Pattern.compile("<([^>]*?)(?=<|$)"); private static final Pattern P_XML_CONTENT = Pattern.compile("(^|>)([^<]*?)(?=>)"); private static final Pattern P_STRAY_LEFT_ARROW = Pattern.compile("<([^>]*?)(?=<|$)"); private static final Pattern P_STRAY_RIGHT_ARROW = Pattern.compile("(^|>)([^<]*?)(?=>)"); private static final Pattern P_AMP = Pattern.compile("&"); private static final Pattern P_QUOTE = Pattern.compile("<"); private static final Pattern P_LEFT_ARROW = Pattern.compile("<"); private static final Pattern P_RIGHT_ARROW = Pattern.compile(">"); private static final Pattern P_BOTH_ARROWS = Pattern.compile("<>"); private static final String SS="#//"; private static final ConcurrentMap<String,Pattern> P_REMOVE_PAIR_BLANKS = new ConcurrentHashMap<String, Pattern>(); private static final ConcurrentMap<String,Pattern> P_REMOVE_SELF_BLANKS = new ConcurrentHashMap<String, Pattern>(); private final Map<String, List<String>> vAllowed; private final Map<String, Integer> vTagCounts = new HashMap<String, Integer>(); private final String[] vSelfClosingTags; private final String[] vNeedClosingTags; private final String[] vDisallowed; private final String[] vProtocolAtts; private final String[] vAllowedProtocols; private final String[] vRemoveBlanks; private final String[] vAllowedEntities; private final boolean stripComment; private final boolean encodeQuotes; private boolean vDebug = false; private final boolean alwaysMakeTags; public HtmlFilter() { vAllowed = new HashMap<>(); final ArrayList<String> aAtts = new ArrayList<String>(); aAtts.add("href"); aAtts.add("target"); vAllowed.put("a", aAtts); final ArrayList<String> imgAtts = new ArrayList<String>(); imgAtts.add("src"); imgAtts.add("width"); imgAtts.add("height"); imgAtts.add("alt"); vAllowed.put("img", imgAtts); final ArrayList<String> noAtts = new ArrayList<String>(); vAllowed.put("b", noAtts); vAllowed.put("strong", noAtts); vAllowed.put("i", noAtts); vAllowed.put("em", noAtts); vSelfClosingTags = new String[]{"img"}; vNeedClosingTags = new String[]{"a", "b", "strong", "i", "em"}; vDisallowed = new String[]{}; vAllowedProtocols = new String[]{"http", "mailto", "https"}; vProtocolAtts = new String[]{"src", "href"}; vRemoveBlanks = new String[]{"a", "b", "strong", "i", "em"}; vAllowedEntities = new String[]{"amp", "gt", "lt", "quot"}; stripComment = true; encodeQuotes = true; alwaysMakeTags = true; } public HtmlFilter(final boolean debug) { this(); vDebug = debug; } @SuppressWarnings("unchecked")public HtmlFilter(final Map<String,Object> conf) { assert conf.containsKey("vAllowed") : "configuration requires vAllowed"; assert conf.containsKey("vSelfClosingTags") : "configuration requires vSelfClosingTags"; assert conf.containsKey("vNeedClosingTags") : "configuration requires vNeedClosingTags"; assert conf.containsKey("vDisallowed") : "configuration requires vDisallowed"; assert conf.containsKey("vAllowedProtocols") : "configuration requires vAllowedProtocols"; assert conf.containsKey("vProtocolAtts") : "configuration requires vProtocolAtts"; assert conf.containsKey("vRemoveBlanks") : "configuration requires vRemoveBlanks"; assert conf.containsKey("vAllowedEntities") : "configuration requires vAllowedEntities"; vAllowed = Collections.unmodifiableMap((HashMap<String, List<String>>) conf.get("vAllowed")); vSelfClosingTags = (String[]) conf.get("vSelfClosingTags"); vNeedClosingTags = (String[]) conf.get("vNeedClosingTags"); vDisallowed = (String[]) conf.get("vDisallowed"); vAllowedProtocols = (String[]) conf.get("vAllowedProtocols"); vProtocolAtts = (String[]) conf.get("vProtocolAtts"); vRemoveBlanks = (String[]) conf.get("vRemoveBlanks"); vAllowedEntities = (String[]) conf.get("vAllowedEntities"); stripComment = conf.containsKey("stripComment") ? (Boolean) conf.get("stripComment") : true; encodeQuotes = conf.containsKey("encodeQuotes") ? (Boolean) conf.get("encodeQuotes") : true; alwaysMakeTags = conf.containsKey("alwaysMakeTags") ? (Boolean) conf.get("alwaysMakeTags") : true; } private void reset() { vTagCounts.clear(); } private void debug(final String msg) { if (vDebug) { Logger.getAnonymousLogger().info(msg); } } //--------------------------------------------------------------- public static String chr(final int decimal) { return String.valueOf((char) decimal); } public static String htmlSpecialChars(final String s) { String result = s; result = regexReplace(P_AMP, "&", result); result = regexReplace(P_QUOTE, """, result); result = regexReplace(P_LEFT_ARROW, "<", result); result = regexReplace(P_RIGHT_ARROW, ">", result); return result; } //--------------------------------------------------------------- public String filter(final String input) { reset(); String s = input; debug("************************************************"); debug(" INPUT: " + input); s = escapeComments(s); debug(" escapeComments: " + s); s = balanceHTML(s); debug(" balanceHTML: " + s); s = checkTags(s); debug(" checkTags: " + s); s = processRemoveBlanks(s); debug("processRemoveBlanks: " + s); s = validateEntities(s); debug(" validateEntites: " + s); debug("************************************************\n\n"); return s; } public boolean isAlwaysMakeTags(){ return alwaysMakeTags; } public boolean isStripComments(){ return stripComment; } private String escapeComments(final String s) { final Matcher m = P_COMMENTS.matcher(s); final StringBuffer buf = new StringBuffer(); if (m.find()) { final String match = m.group(1); m.appendReplacement(buf, Matcher.quoteReplacement("<!--" + htmlSpecialChars(match) + "-->")); } m.appendTail(buf); return buf.toString(); } private String balanceHTML(String s) { if (alwaysMakeTags) { // // try and form html // s = regexReplace(P_END_ARROW, "", s); s = regexReplace(P_BODY_TO_END, "<$1>", s); s = regexReplace(P_XML_CONTENT, "$1<$2", s); } else { // // escape stray brackets // s = regexReplace(P_STRAY_LEFT_ARROW, "<$1", s); s = regexReplace(P_STRAY_RIGHT_ARROW, "$1$2><", s); // // the last regexp causes '<>' entities to appear // (we need to do a lookahead assertion so that the last bracket can // be used in the next pass of the regexp) // s = regexReplace(P_BOTH_ARROWS, "", s); } return s; } private String checkTags(String s) { Matcher m = P_TAGS.matcher(s); final StringBuffer buf = new StringBuffer(); while (m.find()) { String replaceStr = m.group(1); replaceStr = processTag(replaceStr); m.appendReplacement(buf, Matcher.quoteReplacement(replaceStr)); } m.appendTail(buf); s = buf.toString(); // these get tallied in processTag // (remember to reset before subsequent calls to filter method) for (String key : vTagCounts.keySet()) { for (int ii = 0; ii < vTagCounts.get(key); ii++) { s += "</" + key + ">"; } } return s; } private String processRemoveBlanks(final String s) { String result = s; for (String tag : vRemoveBlanks) { if(!P_REMOVE_PAIR_BLANKS.containsKey(tag)){ P_REMOVE_PAIR_BLANKS.putIfAbsent(tag, Pattern.compile("<" + tag + "(\\s[^>]*)?></" + tag + ">")); } result = regexReplace(P_REMOVE_PAIR_BLANKS.get(tag), "", result); if(!P_REMOVE_SELF_BLANKS.containsKey(tag)){ P_REMOVE_SELF_BLANKS.putIfAbsent(tag, Pattern.compile("<" + tag + "(\\s[^>]*)?/>")); } result = regexReplace(P_REMOVE_SELF_BLANKS.get(tag), "", result); } return result; } private static String regexReplace(final Pattern regexPattern, final String replacement, final String s) { Matcher m = regexPattern.matcher(s); return m.replaceAll(replacement); } private String processTag(final String s) { // ending tags Matcher m = P_END_TAG.matcher(s); if (m.find()) { final String name = m.group(1).toLowerCase(); if (allowed(name)) { if (!inArray(name, vSelfClosingTags)) { if (vTagCounts.containsKey(name)) { vTagCounts.put(name, vTagCounts.get(name) - 1); return "</" + name + ">"; } } } } // starting tags m = P_START_TAG.matcher(s); if (m.find()) { final String name = m.group(1).toLowerCase(); final String body = m.group(2); String ending = m.group(3); //debug( "in a starting tag, name='" + name + "'; body='" + body + "'; ending='" + ending + "'" ); if (allowed(name)) { String params = ""; final Matcher m2 = P_QUOTED_ATTRIBUTES.matcher(body); final Matcher m3 = P_UNQUOTED_ATTRIBUTES.matcher(body); final List<String> paramNames = new ArrayList<String>(); final List<String> paramValues = new ArrayList<String>(); while (m2.find()) { paramNames.add(m2.group(1)); paramValues.add(m2.group(3)); } while (m3.find()) { paramNames.add(m3.group(1)); paramValues.add(m3.group(3)); } String paramName, paramValue; for (int ii = 0; ii < paramNames.size(); ii++) { paramName = paramNames.get(ii).toLowerCase(); paramValue = paramValues.get(ii); if (allowedAttribute(name, paramName)) { if (inArray(paramName, vProtocolAtts)) { paramValue = processParamProtocol(paramValue); } params += " " + paramName + "=\"" + paramValue + "\""; } } if (inArray(name, vSelfClosingTags)) { ending = " /"; } if (inArray(name, vNeedClosingTags)) { ending = ""; } if (ending == null || ending.length() < 1) { if (vTagCounts.containsKey(name)) { vTagCounts.put(name, vTagCounts.get(name) + 1); } else { vTagCounts.put(name, 1); } } else { ending = " /"; } return "<" + name + params + ending + ">"; } else { return ""; } } // comments m = P_COMMENT.matcher(s); if (!stripComment && m.find()) { return "<" + m.group() + ">"; } return ""; } private String processParamProtocol(String s) { s = decodeEntities(s); final Matcher m = P_PROTOCOL.matcher(s); if (m.find()) { final String protocol = m.group(1); if (!inArray(protocol, vAllowedProtocols)) { // bad protocol, turn into local anchor link instead s = "#" + s.substring(protocol.length() + 1, s.length()); if (s.startsWith(SS)) { s = "#" + s.substring(3, s.length()); } } } return s; } private String decodeEntities(String s) { StringBuffer buf = new StringBuffer(); Matcher m = P_ENTITY.matcher(s); while (m.find()) { final String match = m.group(1); final int decimal = Integer.decode(match).intValue(); m.appendReplacement(buf, Matcher.quoteReplacement(chr(decimal))); } m.appendTail(buf); s = buf.toString(); buf = new StringBuffer(); m = P_ENTITY_UNICODE.matcher(s); while (m.find()) { final String match = m.group(1); final int decimal = Integer.valueOf(match, 16).intValue(); m.appendReplacement(buf, Matcher.quoteReplacement(chr(decimal))); } m.appendTail(buf); s = buf.toString(); buf = new StringBuffer(); m = P_ENCODE.matcher(s); while (m.find()) { final String match = m.group(1); final int decimal = Integer.valueOf(match, 16).intValue(); m.appendReplacement(buf, Matcher.quoteReplacement(chr(decimal))); } m.appendTail(buf); s = buf.toString(); s = validateEntities(s); return s; } private String validateEntities(final String s) { StringBuffer buf = new StringBuffer(); // validate entities throughout the string Matcher m = P_VALID_ENTITIES.matcher(s); while (m.find()) { final String one = m.group(1); final String two = m.group(2); m.appendReplacement(buf, Matcher.quoteReplacement(checkEntity(one, two))); } m.appendTail(buf); return encodeQuotes(buf.toString()); } private String encodeQuotes(final String s){ if(encodeQuotes){ StringBuffer buf = new StringBuffer(); Matcher m = P_VALID_QUOTES.matcher(s); while (m.find()) { final String one = m.group(1); final String two = m.group(2); final String three = m.group(3); m.appendReplacement(buf, Matcher.quoteReplacement(one + regexReplace(P_QUOTE, """, two) + three)); } m.appendTail(buf); return buf.toString(); }else{ return s; } } private String checkEntity(final String preamble, final String term) { return ";".equals(term) && isValidEntity(preamble) ? '&' + preamble : "&" + preamble; } private boolean isValidEntity(final String entity) { return inArray(entity, vAllowedEntities); } private static boolean inArray(final String s, final String[] array) { for (String item : array) { if (item != null && item.equals(s)) { return true; } } return false; } private boolean allowed(final String name) { return (vAllowed.isEmpty() || vAllowed.containsKey(name)) && !inArray(name, vDisallowed); } private boolean allowedAttribute(final String name, final String paramName) { return allowed(name) && (vAllowed.isEmpty() || vAllowed.get(name).contains(paramName)); }}敏感词过滤工具类
import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.InputStream;import java.io.InputStreamReader;import java.io.Serializable;import java.util.*; import org.springframework.core.io.ClassPathResource; @SuppressWarnings("all")public class SensitiveWordUtils implements Serializable { private static final long serialVersionUID = 1L; private SensitiveWordUtils() {} private static SensitiveWordUtils sensitiveWordUtils = null; public synchronized static SensitiveWordUtils getSensitiveWordUtils() {if (sensitiveWordUtils == null) {sensitiveWordUtils = new SensitiveWordUtils();}return sensitiveWordUtils;} private static Set<String> sensitiveWordSet = null; static {try {readResource("keywords.txt");} catch (Exception e) {e.printStackTrace();}// 初始化敏感词库initSensitiveWordMap();} private static final int MinMatchTYpe = 1; // 最小匹配规则，如：敏感词库["中国","中国人"]，语句："我是中国人"，匹配结果：我是[中国]人private static final int MaxMatchType = 2; // 最大匹配规则，如：敏感词库["中国","中国人"]，语句："我是中国人"，匹配结果：我是[中国人] private static HashMap sensitiveWordMap = new HashMap<>(); private static void readResource(String name) throws Exception {ClassPathResource resource = new ClassPathResource(name);InputStream inputStream = resource.getInputStream();InputStreamReader read = new InputStreamReader(inputStream, "utf-8");// 初始化set集合sensitiveWordSet = new HashSet<String>();// 缓冲区读取流BufferedReader bufferedReader = new BufferedReader(read);// 循环读取文件中内容，每次读取一行内容String txt = null;while ((txt = bufferedReader.readLine()) != null) {// 读取文件，将文件内容放入到set中sensitiveWordSet.add(txt);}read.close();} private static void initSensitiveWordMap() {// 初始化敏感词容器，减少扩容操作sensitiveWordMap = new HashMap(sensitiveWordSet.size());String key;Map nowMap;Map<String, String> newWorMap;// 迭代sensitiveWordSetIterator<String> iterator = sensitiveWordSet.iterator();while (iterator.hasNext()) {// 关键字key = iterator.next();nowMap = sensitiveWordMap;for (int i = 0; i < key.length(); i++) {// 转换成char型char keyChar = key.charAt(i);// 库中获取关键字Object wordMap = nowMap.get(keyChar);// 如果存在该key，直接赋值，用于下一个循环获取if (wordMap != null) {nowMap = (Map) wordMap;} else {// 不存在则，则构建一个map，同时将isEnd设置为0，因为他不是最后一个newWorMap = new HashMap<>();// 不是最后一个newWorMap.put("isEnd", "0");nowMap.put(keyChar, newWorMap);nowMap = newWorMap;} if (i == key.length() - 1) {// 最后一个nowMap.put("isEnd", "1");}}}} private int checkSensitiveWord(String txt, int beginIndex, int matchType) {// 敏感词结束标识位：用于敏感词只有1位的情况boolean flag = false;// 匹配标识数默认为0int matchFlag = 0;char word;Map nowMap = sensitiveWordMap;for (int i = beginIndex; i < txt.length(); i++) {word = txt.charAt(i);// 获取指定keynowMap = (Map) nowMap.get(word);if (nowMap != null) {// 存在，则判断是否为最后一个// 找到相应key，匹配标识+1matchFlag++;// 如果为最后一个匹配规则,结束循环，返回匹配标识数if ("1".equals(nowMap.get("isEnd"))) {// 结束标志位为trueflag = true;// 最小规则，直接返回,最大规则还需继续查找if (MinMatchTYpe == matchType) {break;}}} else {// 不存在，直接返回break;}}if (matchFlag < 2 || !flag) {// 长度必须大于等于1，为词matchFlag = 0;}return matchFlag;} public boolean contains(String txt, int matchType) {boolean flag = false;for (int i = 0; i < txt.length(); i++) {int matchFlag = checkSensitiveWord(txt, i, matchType); // 判断是否包含敏感字符if (matchFlag > 0) { // 大于0存在，返回trueflag = true;}}return flag;} public Set<String> getSensitiveWord(String txt, int matchType) {Set<String> sensitiveWordList = new HashSet<>(); for (int i = 0; i < txt.length(); i++) {// 判断是否包含敏感字符int length = checkSensitiveWord(txt, i, matchType);if (length > 0) {// 存在,加入list中sensitiveWordList.add(txt.substring(i, i + length));i = i + length - 1;// 减1的原因，是因为for会自增}} return sensitiveWordList;} public String replaceSensitiveWord(String txt, char replaceChar, int matchType) {String resultTxt = txt;// 获取所有的敏感词Set<String> set = getSensitiveWord(txt, matchType);Iterator<String> iterator = set.iterator();String word;String replaceString;while (iterator.hasNext()) {word = iterator.next();replaceString = getReplaceChars(replaceChar, word.length());resultTxt = resultTxt.replaceAll(word, replaceString);} return resultTxt;} private String getReplaceChars(char replaceChar, int length) {String resultReplace = String.valueOf(replaceChar);for (int i = 1; i < length; i++) {resultReplace += replaceChar;}return resultReplace;}}以上是“java配置多个过滤器优先级是什么”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注编程网行业资讯频道！
