1. 創建自定義攔截器類并實現 HandlerInterceptor 接口
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package com.xgf.online_mall.interceptor;import com.xgf.online_mall.system.domain.User;import lombok.extern.slf4j.Slf4j;import org.springframework.stereotype.Component;import org.springframework.web.servlet.HandlerInterceptor;import org.springframework.web.servlet.ModelAndView;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.BufferedWriter;import java.io.FileWriter;import java.nio.file.Files;import java.nio.file.Path;import java.nio.file.Paths;import java.text.SimpleDateFormat;import java.util.Date;import java.util.logging.SimpleFormatter;@Slf4j@Componentpublic class UserLoginAuthInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { log.info(" ======== UserAuthInterceptor preHandle 登錄權限攔截器攔截"); User user = (User) request.getSession().getAttribute("loginUser"); //未登錄才判斷，登錄了直接放行 if(user == null){ //獲取訪問路徑 String address = request.getRequestURI(); log.info("======== 攔截，訪問路徑 address : {}", address); response.sendRedirect(request.getContextPath() + "/login.html"); return false; /*String address = request.getRequestURI(); log.info("======== 攔截，訪問路徑 address : {}", address); //不是登錄或者注冊頁面，就直接跳轉登錄界面 if(!address.contains("login") && !address.contains("register")){ //強制到登錄頁面 response.sendRedirect(request.getContextPath() + "/login.html"); //設置為false，不訪問controller return false; }*/ } //其它模塊或者已經登錄，就直接放行// log.info("======== 已登錄 user = {}", user); return true; } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { log.info(" ===== UserAuthInterceptor postHandle"); } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { log.info("==== UserAuthInterceptor afterCompletion"); //記錄日志 向文件里面寫日志 //獲取服務器記錄日志log文件所存放的目錄位置 -- tomcat下的真實路徑+log目錄 String logdir = request.getServletContext().getRealPath("log"); //路徑不存在就創建 Path logdirPath = Paths.get(logdir); if(Files.notExists(logdirPath)){ Files.createDirectories(logdirPath); } //目錄存在就將數據[字符]寫入 //存放日志的路徑+文件名 Path logfile = Paths.get(logdir,"userlog.log"); //logfile.toFile() paths轉換為File類型 true以追加的方式寫入 BufferedWriter writer = new BufferedWriter(new FileWriter(logfile.toFile(),true)); //獲取登錄用戶信息 User user = (User)request.getSession().getAttribute("loginUser"); //記錄user信息，存入日志 writer.write(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " >> " + user +"\r\n"); writer.flush(); writer.close(); }} |
2. 創建WebMvcConfigurer接口實現類，注冊并生效自定義的攔截器
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import com.xgf.online_mall.constant.PathConstantParam;import com.xgf.online_mall.interceptor.UserLoginAuthInterceptor;import lombok.extern.slf4j.Slf4j;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.config.annotation.InterceptorRegistry;import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;import java.util.ArrayList;import java.util.List;@Configuration@Slf4jpublic class LoginConfig implements WebMvcConfigurer { @Autowired private UserLoginAuthInterceptor userLoginAuthInterceptor; /** * addInterceptors方法設置攔截路徑 * addPathPatterns：需要攔截的訪問路徑 * excludePathPatterns：不需要攔截的路徑， * String數組類型可以寫多個用","分割 * @param registry */ @Override public void addInterceptors(InterceptorRegistry registry){ log.info(" ======== LoginConfig.addInterceptors"); //添加對用戶未登錄的攔截器，并添加排除項 //error路徑，excludePathPatterns排除訪問的路徑在項目中不存在的時候， //springboot會將路徑變成 /error, 導致無法進行排除。 registry.addInterceptor(userLoginAuthInterceptor) .addPathPatterns("/**") .excludePathPatterns("/js/**", "/css/**", "/img/**", "/plugins/**") .excludePathPatterns("/login.html", "/register.html", "/system/user/login", "/system/user/login", "/index") .excludePathPatterns("/error"); } } |
到此這篇關于SpringBoot登錄用戶權限攔截器的文章就介紹到這了,更多相關SpringBoot 用戶權限攔截器內容請搜索服務器之家以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持服務器之家！
原文鏈接：https://blog.csdn.net/qq_40542534/article/details/115025189
