package com.ruoyi.common.utils;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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import javax.servlet.http.Cookie;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* web工具类
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*
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* @author liheng
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*/
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public final class WebUtils extends org.springframework.web.util.WebUtils {
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/**
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* 当前请求
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*/
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public static HttpServletRequest request() {
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return contextHolder() == null ? null : contextHolder().getRequest();
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}
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/**
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* 当前响应
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*/
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public static HttpServletResponse response() {
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return contextHolder() == null ? null : contextHolder().getResponse();
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}
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/**
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* 当前session
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*/
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public static HttpSession session() {
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return request() == null ? null : request().getSession();
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}
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/**
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* 当前ServletRequest
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*/
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public static ServletRequestAttributes contextHolder() {
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return (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
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}
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/**
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* 判断请求是否为 AJAX
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*
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* @param request 当前请求
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*/
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public static boolean isAjax(HttpServletRequest request) {
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return "XMLHttpRequest".equals(request.getHeader("X-Requested-With"));
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}
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/**
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* 获取操作系统,浏览器及浏览器版本信息
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*
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* @param request
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* @return
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*/
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public static Map<String, String> getOsAndBrowserInfo(HttpServletRequest request) {
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Map<String, String> map = new HashMap<>(2);
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String browserDetails = request.getHeader("User-Agent");
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String userAgent = browserDetails;
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String user = userAgent.toLowerCase();
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String os = "";
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String browser = "";
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//=================OS Info=======================
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if (userAgent.toLowerCase().contains("windows")) {
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os = "Windows";
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} else if (userAgent.toLowerCase().contains("mac")) {
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os = "Mac";
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} else if (userAgent.toLowerCase().contains("x11")) {
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os = "Unix";
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} else if (userAgent.toLowerCase().contains("android")) {
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os = "Android";
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} else if (userAgent.toLowerCase().contains("iphone")) {
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os = "IPhone";
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} else {
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os = "UnKnown, More-Info: " + userAgent;
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}
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//===============Browser===========================
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if (user.contains("edge")) {
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browser = (userAgent.substring(userAgent.indexOf("Edge")).split(" ")[0]).replace("/", "-");
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} else if (user.contains("msie")) {
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String substring = userAgent.substring(userAgent.indexOf("MSIE")).split(";")[0];
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browser = substring.split(" ")[0].replace("MSIE", "IE") + "-" + substring.split(" ")[1];
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} else if (user.contains("safari") && user.contains("version")) {
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browser = (userAgent.substring(userAgent.indexOf("Safari")).split(" ")[0]).split("/")[0]
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+ "-" + (userAgent.substring(userAgent.indexOf("Version")).split(" ")[0]).split("/")[1];
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} else if (user.contains("opr") || user.contains("opera")) {
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if (user.contains("opera")) {
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browser = (userAgent.substring(userAgent.indexOf("Opera")).split(" ")[0]).split("/")[0]
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+ "-" + (userAgent.substring(userAgent.indexOf("Version")).split(" ")[0]).split("/")[1];
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} else if (user.contains("opr")) {
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browser = ((userAgent.substring(userAgent.indexOf("OPR")).split(" ")[0]).replace("/", "-"))
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.replace("OPR", "Opera");
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}
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} else if (user.contains("chrome")) {
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browser = (userAgent.substring(userAgent.indexOf("Chrome")).split(" ")[0]).replace("/", "-");
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} else if ((user.contains("mozilla/7.0")) || (user.contains("netscape6")) ||
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(user.contains("mozilla/4.7")) || (user.contains("mozilla/4.78")) ||
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(user.contains("mozilla/4.08")) || (user.contains("mozilla/3"))) {
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browser = "Netscape-?";
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} else if (user.contains("firefox")) {
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browser = (userAgent.substring(userAgent.indexOf("Firefox")).split(" ")[0]).replace("/", "-");
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} else if (user.contains("rv")) {
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String IEVersion = (userAgent.substring(userAgent.indexOf("rv")).split(" ")[0]).replace("rv:", "-");
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browser = "IE" + IEVersion.substring(0, IEVersion.length() - 1);
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} else {
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browser = "UnKnown, More-Info: " + userAgent;
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}
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map.put("os", os);
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map.put("browser", browser);
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return map;
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}
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/**
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* 读取cookie
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*
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* @param name cookie name
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* @return cookie value
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*/
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public String getCookieVal(String name) {
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return getCookieVal(request(), name);
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}
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/**
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* 读取cookie
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*
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* @param request HttpServletRequest
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* @param name cookie name
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* @return cookie value
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*/
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public String getCookieVal(HttpServletRequest request, String name) {
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Cookie cookie = getCookie(request, name);
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return cookie != null ? cookie.getValue() : null;
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}
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/**
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* 清除 某个指定的cookie
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*
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* @param response HttpServletResponse
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* @param key cookie key
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*/
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public void removeCookie(HttpServletResponse response, String key) {
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setCookie(response, key, null, 0);
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}
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/**
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* 设置cookie
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*
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* @param response HttpServletResponse
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* @param name cookie name
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* @param value cookie value
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* @param maxAgeInSeconds maxage
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*/
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public void setCookie(HttpServletResponse response, String name, String value, int maxAgeInSeconds) {
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Cookie cookie = new Cookie(name, value);
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cookie.setPath("/");
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cookie.setMaxAge(maxAgeInSeconds);
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//cookie.setHttpOnly(true);
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response.addCookie(cookie);
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}
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}
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