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Spring Boot之前后端分离(三):登录、登出、页面认证

前言

来啦老铁!

笔者学习Spring Boot有一段时间了,附上Spring Boot系列学习文章,欢迎取阅、赐教:

  1. 5分钟入手Spring Boot;
  2. Spring Boot数据库交互之Spring Data JPA;
  3. Spring Boot数据库交互之Mybatis;
  4. Spring Boot视图技术;
  5. Spring Boot之整合Swagger;
  6. Spring Boot之junit单元测试踩坑;
  7. 如何在Spring Boot中使用TestNG;
  8. Spring Boot之整合logback日志;
  9. Spring Boot之整合Spring Batch:批处理与任务调度;
  10. Spring Boot之整合Spring Security: 访问认证;
  11. Spring Boot之整合Spring Security: 授权管理;
  12. Spring Boot之多数据库源:极简方案;
  13. Spring Boot之使用MongoDB数据库源;
  14. Spring Boot之多线程、异步:@Async;
  15. Spring Boot之前后端分离(一):Vue前端;
  16. Spring Boot之前后端分离(二):后端、前后端集成

在前2篇文章,我们一起学习了Spring Boot之前后端分离的前端、后端、前后端集成,不过前后端集成的时候没有演示登录成功后的页面跳转。

这两天从登录后页面跳转出发,准备来个前后端交互升级版,却发现登出API没有工作正常,几经琢磨后终于解决,决定再写一篇文章,主要介绍:

1. 后端登出API的具体配置及实现;
2. JSESSIONID失效设置;
3. 登录后页面跳转、页面访问认证、登出实现;
4. 演示登录后页面跳转、页面访问认证、登出;

项目代码已更新至Git Hub仓库,欢迎取阅:

1. 后端登出API的具体配置及实现;

我们之前直接使用Spring Security的默认登出API:/logout,感觉应该不会有问题,也没试过,可是当我真正使用它的时候却发现,翻车了???

登出翻车?

检查了一下后端config包内的WebSecurityConfig.java类,关于登出的配置如下:

...
.and()
.logout()
.permitAll()
...

后经查资料和亲自实践,发现加上logoutSuccessHandler就成功解决了,具体步骤如下:

1). domain包内创建SignOutResponse.java实体类,定义登出API的返回;
package com.github.dylanz666.domain;

import com.alibaba.fastjson.JSONArray;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.stereotype.Component;

import java.io.Serializable;

/**
 * @author : dylanz
 * @since : 10/10/2020
 */
@NoArgsConstructor
@AllArgsConstructor
@Data
@Component
public class SignOutResponse implements Serializable {
    private static final long serialVersionUID = 1L;

    private int code;
    private String status;
    private String message;

    @Override
    public String toString() {
        return "{" +
                "\"code\":" + code + "," +
                "\"status\":\"" + status + "\"," +
                "\"message\":\"" + message + "\"" +
                "}";
    }
}
2). 修改config包内WebSecurityConfig.java类的登出配置部分;
...
.logout()
.deleteCookies("JSESSIONID")
.logoutSuccessHandler((request, response, authentication) -> {
    response.setContentType("application/json");
    response.setStatus(200);

    SignOutResponse signOutResponse = new SignOutResponse();
    signOutResponse.setCode(200);
    signOutResponse.setStatus("success");
    signOutResponse.setMessage("success");

    PrintWriter out = response.getWriter();
    out.write(signOutResponse.toString());
    out.flush();
    out.close();
})
.permitAll()
...
这里主要做了2件事,第一个,删除cookie中的JSESSIONID,第二个,声明logoutSuccessHandler;

在验证登出API之前,我们先另外建一个需要访问认证的API,我称之为认证API,步骤如下:
1). 在controller包内创建AuthController.java类;
2). 在AuthController.java类中创建/api/auth API,代码如下:

package com.github.dylanz666.controller;

import com.alibaba.fastjson.JSONArray;
import com.github.dylanz666.domain.SignInResponse;
import com.github.dylanz666.domain.SignOutResponse;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Collection;

/**
 * @author : dylanz
 * @since : 10/09/2020
 */
@RestController
public class AuthController {
    @GetMapping("/api/auth")
    public SignInResponse getAuth() {
        Collection<? extends GrantedAuthority> authorities = SecurityContextHolder.getContext().getAuthentication().getAuthorities();
        UserDetails userDetails = (UserDetails) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
        String username = userDetails.getUsername();

        SignInResponse signInResponse = new SignInResponse();
        signInResponse.setCode(200);
        signInResponse.setStatus("success");
        signInResponse.setMessage("success");
        signInResponse.setUsername(username);
        JSONArray userRoles = new JSONArray();
        for (GrantedAuthority authority : authorities) {
            String userRole = authority.getAuthority();
            if (!userRole.equals("")) {
                userRoles.add(userRole);
            }
        }
        signInResponse.setUserRoles(userRoles);

        return signInResponse;
    }
}

以上步骤完成后,我们再次用postman验证一下后端的登录、登出过程:

未登录访问API
登录
登录后访问API
登出
登出后访问API

我们会发现登出后,Cookie中的JSESSIONID已经变了,这是由于后端把原有的JSESSIONID删除了,并自动分配了另外的JSESSIONID,且是个没有权限的JSESSIONID。不仅如此,如果我们用原有的JSESSIONID再次访问API,也是没有权限的!

因此,我们完成了登出的配置,登出功能已实现!!!

2. JSESSIONID失效设置;

通常,处于安全考虑,我们希望如果一个用户在一定时间内对网站没有任何操作,那么关闭与该用户的会话,即将该用户的JSESSIONID设置为失效,那么这个问题在Spring Security中该如何做到呢?

其实这块Spring Security已经帮我们做好了,默认情况下,用户60秒无操作,则该用户的JSESSIONID将失效,如果我们想更改该时间,也很简单,只需要在项目的resources下的application.properties文件中加入如下配置:

server.servlet.session.timeout=600

这代表,用户600秒无操作,则该用户的JSESSIONID将失效(注意单位为秒)!
JSESSIONID失效后,用户再次登录后才能继续访问我们的应用!

后端再一次准备好了,接下来我打算做一下登录后的页面跳转和前端页面的认证。

3. 登录后页面跳转、页面访问认证、登出实现;

1). 前端基于axios编写logout API调用方法和认证API的调用方法;
import request from '@/utils/request'

export function getAuth() {
    return request({
        url: '/api/auth',
        method: 'get',
        params: {}
    })
}

export function logout() {
    return request({
        url: '/logout',
        method: 'get',
        params: {}
    })
}
2). 修改前端config/index.js文件中的proxyTable,如下:
...
const backendBaseUrl = 'http://127.0.0.1:8080/';
...
proxyTable: {
  '/api': {
    target: backendBaseUrl,
    changeOrigin: true,
    pathRewrite: {
      '^/api': '/api'
    }
  },
  '/login': {
    target: backendBaseUrl,
    changeOrigin: true,
    pathRewrite: {
      '^/login': '/login'
    }
  },
  '/logout': {
    target: backendBaseUrl,
    changeOrigin: true,
    pathRewrite: {
      '^/logout': '/logout'
    }
  },
}
3). 前端src/views底下创建home文件夹,home文件夹内创建index.vue文件,代码如下:

(我们暂时不考虑将某些功能组件化,此处只做演示)

<template>
  <el-container class="tac">
    <el-menu
      mode="vertical"
      unique-opened
      default-active="1"
      class="el-menu-vertical-demo"
      @open="handleOpen"
      @close="handleClose"
      background-color="#006699"
      text-color="#fff"
      active-text-color="#ffd04b"
      v-bind:style="menuStyle"
    >
      <el-submenu index="1">
        <template slot="title">
          <i class="el-icon-location"></i>
          <span>Navigator One</span>
        </template>
        <el-menu-item-group title="Group One">
          <el-menu-item index="1-1">item one</el-menu-item>
          <el-menu-item index="1-2">item one</el-menu-item>
        </el-menu-item-group>
        <el-menu-item-group title="Group Two">
          <el-menu-item index="1-3">item three</el-menu-item>
        </el-menu-item-group>
        <el-submenu index="1-4">
          <template slot="title">item four</template>
          <el-menu-item index="1-4-1">item one</el-menu-item>
        </el-submenu>
      </el-submenu>
      <el-menu-item index="2">
        <i class="el-icon-menu"></i>
        <span>Navigator Two</span>
      </el-menu-item>
      <el-menu-item index="3" disabled>
        <i class="el-icon-document"></i>
        <span>Navigator Three</span>
      </el-menu-item>
      <el-menu-item index="4">
        <i class="el-icon-setting"></i>
        <span>Navigator Four</span>
      </el-menu-item>
    </el-menu>

    <el-main>
      <el-row>
        <el-col :span="18" align="left">
          <el-page-header @back="goBack" title="HOME"></el-page-header>
        </el-col>

        <el-col :span="2" style="margin-top: -10px">
          <!-- 当前角色 -->
          <el-button
            type="text"
            icon="el-icon-user-solid"
            disabled
            size="medium"
            >{{ username }}({{ currentUserRole }})</el-button
          >
        </el-col>
        <el-col :span="2" style="margin-top: -10px">
          <!-- 登出 -->
          <el-button
            type="text"
            icon="el-icon-caret-right"
            size="medium"
            @click="logout"
            >Sign Out</el-button
          >
        </el-col>

        <el-col :span="2" style="margin-top: -10px">
          <!-- 角色下拉框 -->
          <el-dropdown @command="changeRole">
            <span class="el-dropdown-link">
              <el-button type="text" size="medium" icon="el-icon-s-tools"
                >User Role</el-button
              >
              <i class="el-icon-arrow-down el-icon--right"></i>
            </span>
            <el-dropdown-menu slot="dropdown">
              <div v-for="(item, index) in userRoles" :key="item">
                <el-dropdown-item
                  icon="el-icon-user"
                  size="medium"
                  :command="userRoles[index]"
                  >{{ userRoles[index] }}</el-dropdown-item
                >
              </div>
            </el-dropdown-menu>
          </el-dropdown>
        </el-col>
      </el-row>
      <hr />

      <!-- demo form -->
      <div style="width: 45%">
        <el-form
          ref="form"
          :model="form"
          label-width="120px"
          label-position="left"
          align="left"
        >
          <el-form-item label="Activity name">
            <el-input v-model="form.name"></el-input>
          </el-form-item>
          <el-form-item label="Activity zone">
            <el-select
              v-model="form.region"
              placeholder="please select your zone"
            >
              <el-option label="Zone one" value="shanghai"></el-option>
              <el-option label="Zone two" value="beijing"></el-option>
            </el-select>
          </el-form-item>
          <el-form-item label="Activity time" align="center">
            <el-col :span="11">
              <el-date-picker
                type="date"
                placeholder="Pick a date"
                v-model="form.date1"
                style="width: 100%"
              ></el-date-picker>
            </el-col>
            <el-col class="line" :span="2">-</el-col>
            <el-col :span="11">
              <el-time-picker
                placeholder="Pick a time"
                v-model="form.date2"
                style="width: 100%"
              ></el-time-picker>
            </el-col>
          </el-form-item>
          <el-form-item label="Instant delivery">
            <el-switch v-model="form.delivery"></el-switch>
          </el-form-item>
          <el-form-item label="Activity type">
            <el-checkbox-group v-model="form.type">
              <el-checkbox label="Online activities" name="type"></el-checkbox>
              <el-checkbox
                label="Promotion activities"
                name="type"
              ></el-checkbox>
              <el-checkbox label="Offline activities" name="type"></el-checkbox>
              <el-checkbox
                label="Simple brand exposure"
                name="type"
              ></el-checkbox>
            </el-checkbox-group>
          </el-form-item>
          <el-form-item label="Resources">
            <el-radio-group v-model="form.resource">
              <el-radio label="Sponsor"></el-radio>
              <el-radio label="Venue"></el-radio>
            </el-radio-group>
          </el-form-item>
          <el-form-item label="Activity form">
            <el-input type="textarea" v-model="form.desc"></el-input>
          </el-form-item>
          <el-form-item>
            <el-button type="primary" @click="onSubmit">Create</el-button>
            <el-button>Cancel</el-button>
          </el-form-item>
        </el-form>
      </div>
    </el-main>
  </el-container>
</template>

<script>
import { getAuth, logout } from "@/api/auth";

export default {
  name: "home",
  data() {
    return {
      username: "",
      userRoles: [],
      currentUserRole: "",
      menuStyle: {
        height: null,
      },
      form: {
        name: "",
        region: "",
        date1: "",
        date2: "",
        delivery: false,
        type: [],
        resource: "",
        desc: "",
      },
    };
  },
  created() {
    this.menuStyle.height = document.documentElement.clientHeight + "px";
    getAuth().then((response) => {
      if (response.code == 200 && response.message == "success") {
        this.username = response.username;
        this.userRoles = response.userRoles;
        this.currentUserRole = this.userRoles[0]
          ? this.userRoles[0].substring(5, this.userRoles[0].length)
          : "";
      }
    });
  },
  methods: {
    logout() {
      logout().then((response) => {
        if (response.code == 200 && response.status == "success") {
          window.location.href = "/#/login.html";
        }
      });
    },
    changeRole(role) {
      this.currentUserRole = role
        ? role.substring(5, this.userRoles[0].length)
        : "";
    },
    goBack() {
      console.log("back to home");
    },
    onSubmit() {
      this.$notify({
        title: "submit",
        message: "success",
        type: "success",
        offset: 100,
      });
    },
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
  },
};
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
.app-breadcrumb.el-breadcrumb {
  display: inline-block;
  font-size: 14px;
  line-height: 50px;
  margin-left: 10px;
  .no-redirect {
    color: #97a8be;
    cursor: text;
  }

  .right-menu {
    float: right;
    height: 100%;
    &:focus {
      outline: none;
    }
    .right-menu-item {
      display: inline-block;
      margin: 0 8px;
    }
    .screenfull {
      height: 20px;
    }
    .international {
      vertical-align: top;
    }
    .theme-switch {
      vertical-align: 15px;
    }
    .avatar-container {
      height: 50px;
      margin-right: 30px;
      .avatar-wrapper {
        cursor: pointer;
        margin-top: 5px;
        position: relative;
        .user-avatar {
          width: 40px;
          height: 40px;
          border-radius: 10px;
        }
        .el-icon-caret-bottom {
          position: absolute;
          right: -20px;
          top: 25px;
          font-size: 12px;
        }
      }
    }
  }
}
</style>

稍微解读一下:

  • 关注点一:我们created()方法中调用后端的/api/auth方法,验证用户是否已登录,如果已登录,则展示用户的角色信息和当前角色信息。如果未登录,则src/utils/request.js中会将页面重定向到登录页面,src/utils/request.js的改动见下文;
  • 关注点二:我们在页面上设置了一个Sign Out入口,点击Sign Out则调用后端/logout API,并且在调用成功后重定向到登录页面;
4). 修改src/utils/request.js文件,如下:
import axios from 'axios'
import { Message, MessageBox } from 'element-ui'

// 创建axios实例
const service = axios.create({
  baseURL: process.env.BASE_API, // api的base_url
  timeout: 15000 // 请求超时时间
})

// request拦截器
/*
service.interceptors.request.use(config => {
  if (store.getters.token) {
    config.headers['X-Token'] = getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
  }
  return config
}, error => {
  // Do something with request error
  console.log(error) // for debug
  Promise.reject(error)
})
*/

// respone拦截器
service.interceptors.response.use(
  response => {
    /**
     * code为非200是抛错 可结合自己业务进行修改
     */
    const res = response.data;
    if (res.code !== 200) {
      Message({
        message: res.message,
        type: 'error',
        duration: 5 * 1000
      })
    }
    return res;
  },
  error => {
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    });
    window.location.href = "/#/login.html";
    return Promise.reject(error)
  }
)

export default service

唯一变化是在error内增加了window.location.href = "/#/login.html"; 这行代码,这是使得访问后端API的时候,如果遇到400,401,500等错误,直接跳转到登录页面(可另外设置页面,此处只做演示),是全局的设置,避免每个页面都写一遍类似的代码(非必需,可根据实际情况设置)。

5). 修改src/views/login/index.vue中methods的login方法,如下:
login(formName) {
  const from = this.$route.query.from || "home.html";
  this.$refs[formName].validate((valid) => {
    if (!valid) {
      return false;
    }
    login(this.ruleForm.username, this.ruleForm.password).then(
      (response) => {
        this.showSuccessNotify(response);
        this.ruleForm.username = "";
        this.ruleForm.password = "";
        if (response.code == 200 && response.status == "success") {
          this.$router.push({ path: `/${from}` });
        }
      }
    );
  });
}

这是为了让从其他页面跳转到登录页面,登录成功后可直接跳转回原有页面,是个小技巧,非必需。如果不是从其他页面跳转到登录页面的,则登录成功后默认跳转至127.0.0.1/#/home.html页面。

6). 设置访问前端路由外的报错页面,即404页面;
  • src/assets内添加404页面用到的图片资源:


    404图片资源
  • 新建src/views/404.vue文件并编写404页面;
<template>
  <div style="background:#f0f2f5;margin-top: -20px;">
    <div class="wscn-http404">
      <div class="pic-404">
        <img class="pic-404__parent" :src="img_404" alt="404">
        <img class="pic-404__child left" :src="img_404_cloud" alt="404">
        <img class="pic-404__child mid" :src="img_404_cloud" alt="404">
        <img class="pic-404__child right" :src="img_404_cloud" alt="404">
      </div>
      <div class="bullshit">
        <div class="bullshit__oops">OOPS!</div>
        <div class="bullshit__info">版权所有<a class="link-type" href="https://wallstreetcn.com" target='_blank'>华尔街见闻</a></div>
        <div class="bullshit__headline">{{ message }}</div>
        <div class="bullshit__info">请检查您输入的网址是否正确,请点击以下按钮返回主页或者发送错误报告</div>
        <a href="/" class="bullshit__return-home">返回首页</a>
      </div>
    </div>
  </div>
</template>

<script>
import img_404 from '@/assets/404_images/404.png'
import img_404_cloud from '@/assets/404_images/404_cloud.png'

export default {
  data() {
    return {
      img_404,
      img_404_cloud
    }
  },
  computed: {
    message() {
      return '特朗普说这个页面你不能进......'
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
.wscn-http404 {
  position: relative;
  width: 1200px;
  margin: 20px auto 60px;
  padding: 0 100px;
  overflow: hidden;
  .pic-404 {
    position: relative;
    float: left;
    width: 600px;
    padding: 150px 0;
    overflow: hidden;
    &__parent {
      width: 100%;
    }
    &__child {
      position: absolute;
      &.left {
        width: 80px;
        top: 17px;
        left: 220px;
        opacity: 0;
        animation-name: cloudLeft;
        animation-duration: 2s;
        animation-timing-function: linear;
        animation-fill-mode: forwards;
        animation-delay: 1s;
      }
      &.mid {
        width: 46px;
        top: 10px;
        left: 420px;
        opacity: 0;
        animation-name: cloudMid;
        animation-duration: 2s;
        animation-timing-function: linear;
        animation-fill-mode: forwards;
        animation-delay: 1.2s;
      }
      &.right {
        width: 62px;
        top: 100px;
        left: 500px;
        opacity: 0;
        animation-name: cloudRight;
        animation-duration: 2s;
        animation-timing-function: linear;
        animation-fill-mode: forwards;
        animation-delay: 1s;
      }
      @keyframes cloudLeft {
        0% {
          top: 17px;
          left: 220px;
          opacity: 0;
        }
        20% {
          top: 33px;
          left: 188px;
          opacity: 1;
        }
        80% {
          top: 81px;
          left: 92px;
          opacity: 1;
        }
        100% {
          top: 97px;
          left: 60px;
          opacity: 0;
        }
      }
      @keyframes cloudMid {
        0% {
          top: 10px;
          left: 420px;
          opacity: 0;
        }
        20% {
          top: 40px;
          left: 360px;
          opacity: 1;
        }
        70% {
          top: 130px;
          left: 180px;
          opacity: 1;
        }
        100% {
          top: 160px;
          left: 120px;
          opacity: 0;
        }
      }
      @keyframes cloudRight {
        0% {
          top: 100px;
          left: 500px;
          opacity: 0;
        }
        20% {
          top: 120px;
          left: 460px;
          opacity: 1;
        }
        80% {
          top: 180px;
          left: 340px;
          opacity: 1;
        }
        100% {
          top: 200px;
          left: 300px;
          opacity: 0;
        }
      }
    }
  }
  .bullshit {
    position: relative;
    float: left;
    width: 300px;
    padding: 150px 0;
    overflow: hidden;
    &__oops {
      font-size: 32px;
      font-weight: bold;
      line-height: 40px;
      color: #1482f0;
      opacity: 0;
      margin-bottom: 20px;
      animation-name: slideUp;
      animation-duration: 0.5s;
      animation-fill-mode: forwards;
    }
    &__headline {
      font-size: 20px;
      line-height: 24px;
      color: #1482f0;
      opacity: 0;
      margin-bottom: 10px;
      animation-name: slideUp;
      animation-duration: 0.5s;
      animation-delay: 0.1s;
      animation-fill-mode: forwards;
    }
    &__info {
      font-size: 13px;
      line-height: 21px;
      color: grey;
      opacity: 0;
      margin-bottom: 30px;
      animation-name: slideUp;
      animation-duration: 0.5s;
      animation-delay: 0.2s;
      animation-fill-mode: forwards;
    }
    &__return-home {
      display: block;
      float: left;
      width: 110px;
      height: 36px;
      background: #1482f0;
      border-radius: 100px;
      text-align: center;
      color: #ffffff;
      opacity: 0;
      font-size: 14px;
      line-height: 36px;
      cursor: pointer;
      animation-name: slideUp;
      animation-duration: 0.5s;
      animation-delay: 0.3s;
      animation-fill-mode: forwards;
    }
    @keyframes slideUp {
      0% {
        transform: translateY(60px);
        opacity: 0;
      }
      100% {
        transform: translateY(0);
        opacity: 1;
      }
    }
  }
}

</style>

项目启动后,访问未在前端设置路由的路径,如http://127.0.0.1:9528/#/test.htmlhttp://127.0.0.1:9528/#/test,则跳转到http://127.0.0.1:9528/#/404,页面长这样:

404页面

怎么样,404页面还是挺好看的吧!

7). 将src/views/home/index.vue和src/views/404.vue加入前端路由配置src/router/index.js中:

import Vue from 'vue'
import Router from 'vue-router'
import login from '@/views/login/index'
import home from '@/views/home/index'
import notFoundPage from '@/views/404'

Vue.use(Router)

export default new Router({
  routes: [
    {
      path: '/',
      name: 'index',
      component: login
    },
    {
      path: '/login.html',
      name: 'login',
      component: login
    },
    {
      path: '/home.html',
      name: 'home',
      component: home
    },
    {
      path: '/404',
      component: notFoundPage,
      hidden: true
    },
    {
      path: '*',
      redirect: '/404',
      hidden: true
    }
  ]
})

4. 演示登录后页面跳转、页面访问认证、登出;

1). 启动前端:
npm start
启动前端
2). 启动后端:
启动后端
启动后端
3). 登录前访问home页面:http://127.0.0.1:9528/#/home.html
登录前访问home页面

我们会发现页面自动重定向到登录页面,并且显示了一个401方面的错误信息,这是我们事先在src/utils/request.js内写好的哟,该行为比较符合实际使用需求!

4). 前端登录及登录跳转:
前端登录-错误信息
前端登录-正确信息
登录跳转
我们会发现:
  • 只有正确的用户登录信息才能登录,错误的用户登录信息是无法登录的,这也是符合符合实际情况的!
  • 登录后成功跳转至home页面,home页面进行了访问认证,并且认证通过,页面正常展示,符合实际情况!
5). 登出操作、登出后访问home页面:http://127.0.0.1:9528/#/home.html
  • 点击页面右上角的Sign Out按钮进行登出;
登出
  • 登出时调用后端logout API;
登出时调用后端logout API
  • 登出后访问home页面;
登出后访问home页面

我们会发现,登出后home页面已无权限访问!

从JSESSIONID的角度来看:

  • 登录后站点Cookies中JSESSIONID的情况:
登录后JSESSIONID
  • 登出后站点Cookies中JSESSIONID的情况:
登出后JSESSIONID

可见,登出后,站点Cookies中JSESSIONID的确被删除掉了,这是后端WebSecurityConfig.java类中写好的,符合我们的预期!

至此,我们实现了登录成功后的跳转,登出功能、页面认证,并完整地做了演示。由于同时涉及前后端,整个过程稍微有点长而复杂,完整看完的话需要点耐心,我鼓励大家动手跟着实现一遍!

而我也将不断学习,不断更新Spring Boot相关知识,以及Spring Boot前后端分离相关内容。道阻且长,但不忘初心!

如果本文对您有帮助,麻烦点赞、关注!

谢谢!

作者:狄仁杰666

原文链接:https://www.jianshu.com/p/3d9778acdfb5

文章分类
后端
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