SpringBoot安全登录验证

今天药忘吃喽~ 2022-06-01 07:27 225阅读 0赞

项目结构：  
![这里写图片描述][SouthEast]

验证实现——WebSecurityConfig.java

package com.dx.config;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.web.servlet.config.annotation.InterceptorRegistration;
    import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
    import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
    @Configuration
    public class WebSecurityConfig extends WebMvcConfigurerAdapter{ 
         /** * 登录session key */
        public final static String SESSION_KEY = "user";
        @Bean
        public SecurityInterceptor getSecurityInterceptor() {
            return new SecurityInterceptor();
        }
        public void addInterceptors(InterceptorRegistry registry) {
            InterceptorRegistration addInterceptor = registry.addInterceptor(getSecurityInterceptor());
            // 排除配置
            addInterceptor.excludePathPatterns("/error");
            addInterceptor.excludePathPatterns("/login**");
            // 拦截配置
            addInterceptor.addPathPatterns("/**");
        }
        private class SecurityInterceptor extends HandlerInterceptorAdapter { 
            @Override
            public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
                    throws Exception {
                HttpSession session = request.getSession();
                if (session.getAttribute(SESSION_KEY) != null)
                    return true;
                // 跳转登录
                String url = "/login";
                response.sendRedirect(url);
                return false;
            }
        }
    }

请求处理——MainController.java

package com.dx.controller;
    
    import java.util.HashMap;
    import java.util.Map;
    
    import javax.servlet.http.HttpSession;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.PostMapping;
    import org.springframework.web.bind.annotation.SessionAttribute;
    
    import com.dx.config.WebSecurityConfig;
    
    @Controller
    public class MainController {
    
        @GetMapping("/")
        public String index(
                @SessionAttribute(WebSecurityConfig.SESSION_KEY) String account,
                Model model) {
            model.addAttribute("name", account);
            return "index";
        }
        @GetMapping("/login")
        public String login() {
            return "login";
        }
        @PostMapping("/loginPost")
        public String loginPost(String account,
                String password, HttpSession session) {
            Map<String, Object> map = new HashMap<>();
            if (!"123456".equals(password)) {
                map.put("success", false);
                map.put("message", "密码错误");
                return "err";
            }
            // 设置session
            session.setAttribute(WebSecurityConfig.SESSION_KEY, account);
            map.put("success", true);
            map.put("message", "登录成功");
            return "index";
        }
    
        @GetMapping("/logout")
        public String logout(HttpSession session) {
            // 移除session
            session.removeAttribute(WebSecurityConfig.SESSION_KEY);
            return "redirect:/login";
        }
    }

index.html

<!DOCTYPE HTML>
    <html xmlns:th="http://www.thymeleaf.org">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>玩转spring boot——简单登录认证</title>
    </head>
    <body>
        <h1>玩转spring boot——简单登录认证</h1>
        <form action="/loginPost" method="post">
            用户名：<input type="text" name="account"/> <br/>
            密码：<input type="password" name="password"/> 
            <br />
            <input type="submit" value="登录" />
        </form>
    </body>
    </html>

err.html

[SouthEast]: /images/20220601/95d6818347a844c5a782ad0301ded13e.png