package com.javaweb.common.utils;
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import com.javaweb.common.constant.Constants;
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import com.javaweb.common.core.text.Convert;
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import com.javaweb.common.utils.cookie.CookieUtils;
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import org.springframework.web.context.request.RequestAttributes;
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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.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.io.IOException;
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import java.util.Enumeration;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 客户端工具类
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*
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* @author ruoyi
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*/
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public class ServletUtils
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{
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/**
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* 获取String参数
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*/
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public static String getParameter(String name)
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{
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return getRequest().getParameter(name);
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}
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/**
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* 获取String参数
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*/
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public static String getParameter(String name, String defaultValue)
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{
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return Convert.toStr(getRequest().getParameter(name), defaultValue);
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}
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/**
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* 获取Integer参数
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*/
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public static Integer getParameterToInt(String name)
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{
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return Convert.toInt(getRequest().getParameter(name));
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}
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/**
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* 获取Integer参数
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*/
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public static Integer getParameterToInt(String name, Integer defaultValue)
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{
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return Convert.toInt(getRequest().getParameter(name), defaultValue);
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}
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/**
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* 获取request
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*/
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public static HttpServletRequest getRequest()
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{
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return getRequestAttributes().getRequest();
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}
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/**
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* 获取response
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*/
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public static HttpServletResponse getResponse()
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{
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return getRequestAttributes().getResponse();
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}
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/**
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* 获取session
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*/
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public static HttpSession getSession()
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{
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return getRequest().getSession();
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}
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public static ServletRequestAttributes getRequestAttributes()
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{
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RequestAttributes attributes = RequestContextHolder.getRequestAttributes();
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return (ServletRequestAttributes) attributes;
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}
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/**
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* 将字符串渲染到客户端
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*
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* @param response 渲染对象
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* @param string 待渲染的字符串
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* @return null
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*/
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public static String renderString(HttpServletResponse response, String string)
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{
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try
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{
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response.setContentType("application/json");
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response.setCharacterEncoding("utf-8");
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response.getWriter().print(string);
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}
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catch (IOException e)
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{
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 是否是Ajax异步请求
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*
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* @param request
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*/
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public static boolean isAjaxRequest(HttpServletRequest request)
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{
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String accept = request.getHeader("accept");
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if (accept != null && accept.indexOf("application/json") != -1)
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{
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return true;
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}
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String xRequestedWith = request.getHeader("X-Requested-With");
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if (xRequestedWith != null && xRequestedWith.indexOf("XMLHttpRequest") != -1)
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{
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return true;
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}
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String uri = request.getRequestURI();
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if (StringUtils.inStringIgnoreCase(uri, ".json", ".xml"))
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{
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return true;
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}
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String ajax = request.getParameter("__ajax");
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if (StringUtils.inStringIgnoreCase(ajax, "json", "xml"))
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{
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return true;
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}
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return false;
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}
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/**
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* 登录成功后设置cookie
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* @param username
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* @param password
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* @param rememberMe
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*/
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public static void setLoginCookie(String username, String password, Boolean rememberMe){
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HttpServletResponse response= ServletUtils.getResponse();
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response.setHeader("Access-Control-Allow-Credentials","true");
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CookieUtils.setCookie(response, Constants.ADMIN_COOKIE_USERNAME, username, Constants.SECONDS_7_DAYS);
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if (rememberMe) {//记住密码
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CookieUtils.setCookie(response, Constants.ADMIN_COOKIE_PASSWORD, password, Constants.SECONDS_7_DAYS);
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CookieUtils.setCookie(response, Constants.ADMIN_COOKIE_REMEMBERME, "1", Constants.SECONDS_7_DAYS);
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} else {
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CookieUtils.setCookie(response, Constants.ADMIN_COOKIE_PASSWORD, password,0);//0表示清除Cookie
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CookieUtils.setCookie(response, Constants.ADMIN_COOKIE_REMEMBERME, "0", Constants.SECONDS_7_DAYS);
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}
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}
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/**
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* 前台登录
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* @param username
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* @param password
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* @param rememberMe
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*/
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public static void setFrontLoginCookie(String username, String password, Boolean rememberMe){
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HttpServletResponse response= ServletUtils.getResponse();
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response.setHeader("Access-Control-Allow-Credentials","true");
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CookieUtils.setCookie(response, Constants.FRONT_ADMIN_COOKIE_USERNAME, username, Constants.SECONDS_7_DAYS);
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if (rememberMe) {//记住密码
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CookieUtils.setCookie(response, Constants.FRONT_ADMIN_COOKIE_PASSWORD, password, Constants.SECONDS_7_DAYS);
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CookieUtils.setCookie(response, Constants.FRONT_ADMIN_COOKIE_REMEMBERME, "1", Constants.SECONDS_7_DAYS);
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} else {
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CookieUtils.setCookie(response, Constants.FRONT_ADMIN_COOKIE_PASSWORD, password,0);//0表示清除Cookie
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CookieUtils.setCookie(response, Constants.FRONT_ADMIN_COOKIE_REMEMBERME, "0", 86400);
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}
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}
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public static Map<String, String> getMap(HttpServletRequest req) {
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Map<String, String> map=new HashMap<String, String>();
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Enumeration enu = req.getParameterNames();
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while(enu.hasMoreElements()) {
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String paramName = (String)enu.nextElement();
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String[] paramValues = req.getParameterValues(paramName);
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if (paramValues.length == 1) {
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String paramValue = paramValues[0];
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if (paramValue.length() != 0) {
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map.put(paramName, paramValue);
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}
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}
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}
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return map;
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}
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}
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