Spring Bootユーザー権限ブロック登録

1.カスタムスクリーンクラスを作成し、Handler Interceptorインターフェースを実現する

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
@Component
public class UserLoginAuthInterceptor implements HandlerInterceptor {
  @Override
  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
    log.info(" ======== UserAuthInterceptor preHandle          ");
    User user = (User) request.getSession().getAttribute("loginUser");
    //      ，       
    if(user == null){
      //      
      String address = request.getRequestURI();
      log.info("========   ，     address : {}", address);
      response.sendRedirect(request.getContextPath() + "/login.html");
      return false;

      /*String address = request.getRequestURI();
      log.info("========   ，     address : {}", address);
      //          ，         
      if(!address.contains("login") && !address.contains("register")){
        //       
        response.sendRedirect(request.getContextPath() + "/login.html");
        //   false，   controller
        return false;
      }*/
    }
    //          ，     
//    log.info("========     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");

    //             
    //         log           -- tomcat      +log  
    String logdir = request.getServletContext().getRealPath("log");
    //        
    Path logdirPath = Paths.get(logdir);
    if(Files.notExists(logdirPath)){
      Files.createDirectories(logdirPath);
    }
    //        [  ]   //       +   
    Path logfile = Paths.get(logdir,"userlog.log");
    //logfile.toFile() paths   File   true        
    BufferedWriter writer = new BufferedWriter(new FileWriter(logfile.toFile(),true));

    //        
    User user = (User)request.getSession().getAttribute("loginUser");
    //  user  ，    
    writer.write(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " >> " + user +"\r
");
    writer.flush();
    writer.close();
  }
}

2.WebMvcConfigrerインターフェースの実現類を作成し、ユーザー定義のスクリーンセーバーを登録して有効にする。

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
@Slf4j
public class LoginConfig implements WebMvcConfigurer {
  @Autowired
  private UserLoginAuthInterceptor userLoginAuthInterceptor;

  /**
   * addInterceptors        
   *   addPathPatterns：         
   *   excludePathPatterns：        ，
   *   String          ","  
   * @param registry
   */
  @Override
  public void addInterceptors(InterceptorRegistry registry){
    log.info(" ======== LoginConfig.addInterceptors");
    //            ，      
    //error  ，excludePathPatterns                 ，
    //springboot       /error,         。
    registry.addInterceptor(userLoginAuthInterceptor)
        .addPathPatterns("/**")
        .excludePathPatterns("/js/**", "/css/**", "/img/**", "/plugins/**")
        .excludePathPatterns("/login.html", "/register.html", "/system/user/login", "/system/user/login", "/index")
        .excludePathPatterns("/error");
  }
 }

ここで、SpringBoot登録ユーザー権限ブロックに関する記事を紹介します。Spring Bootに関するユーザー権限ブロックの内容は以前の記事を検索したり、下記の関連記事を見たりしてください。これからもよろしくお願いします。