<template>
  <table class="login-table" border="0" cellpadding="10">
    <tr>
      <td align="center">用戶(hù)名</td>
      <td><input id='username' type="text" v-model="username" placeholder="請(qǐng)輸入用戶(hù)名"/></td>
    </tr>
    <tr>
      <td align="center">密&nbsp;&nbsp;&nbsp;&nbsp;碼</td>
      <td><input id='password' type="password" v-model="password" placeholder="請(qǐng)輸入密碼"/></td>
    </tr>
    <tr align="center">
      <td colspan="2">
        <button @click="handleLogin">登錄</button>
      </td>
    </tr>
  </table>
</template>

<script setup>
import {ref} from 'vue';
import {useRouter} from 'vue-router';
import axios from "axios";

const router = useRouter();
const username = ref('');
const password = ref('');

async function handleLogin() {
  try {
    const response = await axios.post('/api/login', {username: username.value, password: password.value});
    console.log(response.data.code)
    if (response.data.code === 200) {
      router.replace('/index'); // 使用后端返回的路徑
    } else if (response.data.code === 400) {
      alert('用戶(hù)名或密碼錯(cuò)誤！請(qǐng)重新登錄！');
      username.value = '';
      password.value = '';
      document.getElementById('username').focus();
    }
  } catch (error) {
    console.error("Error during login:", error.message); // 添加錯(cuò)誤處理，打印錯(cuò)誤信息
  }
}
</script>

<style lang="less" scoped>
/* 重置table樣式 */
.login-table {
  width: 100%;
  max-width: 300px;
  margin: 50px auto;
  border-collapse: collapse;
  border-spacing: 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.login-table td {
  padding-bottom: 16px;
  padding-top: 16px;
  padding-right: 0px;
  padding-right: 8px;
  vertical-align: middle;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

.login-table input[type="text"],
.login-table input[type="password"] {
  width: 100%;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
  outline: none;
  box-sizing: border-box;
}

.login-table button {
  display: block;
  width: 100%;
  padding: 12px;
  background-color: #007bff;
  color: white;
  font-size: 16px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-align: center;
  transition: all 0.3s ease;

  &:hover,
  &:focus {
    background-color: #0056b3;
  }
}
</style>

<template>
  <div class="welcome-container">
    Welcome to Vue 3 World~
  </div>
</template>

<script>
export default {
  name: "IndexView"
}
</script>

<style scoped>
.welcome-container {
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 5px;
  background-color: #f5f5f5;
  text-align: center;
  max-width: 400px;
  margin: 0 auto;
  color: red;
  font-weight: bold;
  font-size: 30px;
}
</style>

// 引入Vue3以及新的vue-router
import { createRouter, createWebHistory } from 'vue-router';
import Login from '@/components/LoginView.vue';
import Index from "@/components/IndexView.vue";

// 定義路由
const routes = [
  {
    path: '/login',
    name: 'LoginView',
    component: Login
  },
  {
    path: '/index',
    name: 'IndexView',
    component: Index
  }
];

// 創(chuàng)建路由器實(shí)例
const router = createRouter({
  history: createWebHistory(),
  routes,
});

// 導(dǎo)出全局注冊(cè)
export default router;

<template>
  <div id="app">
    <img alt="Vue logo" src="./assets/logo.png">
    <router-view />
  </div>
</template>

<script>
</script>

<style lang="less">
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}
</style>

// 導(dǎo)入Vue3的核心API，用于創(chuàng)建Vue應(yīng)用實(shí)例
import {createApp} from 'vue';

// 導(dǎo)入根組件App.vue，它是整個(gè)應(yīng)用程序的主視圖模板
import App from './App.vue';

// 導(dǎo)入已配置好的路由模塊（index.js或router.ts等），它管理著應(yīng)用內(nèi)的頁(yè)面跳轉(zhuǎn)邏輯
import router from "@/router";

// 使用createApp方法創(chuàng)建一個(gè)Vue應(yīng)用實(shí)例，并注冊(cè)全局路由配置
const app = createApp(App).use(router);

// 將Vue應(yīng)用掛載到HTML文檔中id為'app'的元素上
// 這將把整個(gè)應(yīng)用程序渲染到這個(gè)DOM元素內(nèi)部
app.mount('#app');

module.exports = {
  // 設(shè)置在保存文件時(shí)禁用ESLint自動(dòng)檢查
  lintOnSave: false,

  // 配置Vue開(kāi)發(fā)服務(wù)器相關(guān)選項(xiàng)
  devServer: {
    // 配置HTTP代理，以便在開(kāi)發(fā)過(guò)程中將特定請(qǐng)求轉(zhuǎn)發(fā)到其他服務(wù)器
    proxy: {
      // 當(dāng)請(qǐng)求以 '/api' 開(kāi)頭時(shí)進(jìn)行代理
      '/api': {
        // 指定目標(biāo)服務(wù)器地址（例如后臺(tái)API接口）
        target: 'http://localhost:8888',
        
        // 設(shè)置為true，允許跨域請(qǐng)求時(shí)重寫(xiě)源信息（Origin header）
        changeOrigin: true,

        // 路徑重寫(xiě)規(guī)則，將前端應(yīng)用中'/api'前綴去掉，映射到后端服務(wù)器的實(shí)際路徑上
        pathRewrite: { '^/api': '' },
      }
    }
  }
}

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>首頁(yè)</title>
</head>
<body>
    <h3 style="text-align: center; color: red">Welcome to Spring Boot World~</h3>
</body>
</html>

package net.huawei.login.bean;

/**
 * 功能：用戶(hù)實(shí)體類(lèi)
 * 作者：華衛(wèi)
 * 日期：2024年01月14日
 */
public class User {
    private int id;
    private String username;
    private String password;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

package net.huawei.login.result;

/**
 * 功能：結(jié)果實(shí)體類(lèi)
 * 作者：華衛(wèi)
 * 日期：2024年01月14日
 */
public class Result {
    private int code;

    public Result(int code) {
        this.code = code;
    }

    public int getCode() {
        return code;
    }

    public void setCode(int code) {
        this.code = code;
    }
}

package net.huawei.login.controller;

import net.huawei.login.bean.User;
import net.huawei.login.result.Result;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.util.HtmlUtils;

/**
 * 功能：登錄控制器
 * 作者：華衛(wèi)
 * 日期：2024年01月14日
 */
@Controller
public class LoginController {
    @CrossOrigin
    @PostMapping(value = "api/login")
    @ResponseBody
    public Result login(@RequestBody User requestUser) {
        // 獲取用戶(hù)名和密碼
        String username = requestUser.getUsername();
        String password = requestUser.getPassword();
        // 對(duì)html標(biāo)簽進(jìn)行轉(zhuǎn)義，防止XSS攻擊
        username = HtmlUtils.htmlEscape(username);
        // 判斷登錄是否成功
        if (username.equals("無(wú)心劍") && password.equals("903213")) {
            return new Result(200);
        } else {
            System.out.println("用戶(hù)名或密碼有誤！");
            return new Result(400);
        }
    }
}