mkw-visit-cancel/pages/login/index.vue

<template>
  <view class="login-container">
    <!-- 背景图片 -->
    <image src="/static/cancel_bg.png" class="background-image" mode="aspectFill"></image>
    
    <!-- 标题区域 -->
    <view class="login-header">
      <view class="header-content">
        <image src="/static/logo-index.png" class="header-logo" mode="aspectFit"></image>
        <view class="header-text">
          <text class="welcome-title">Hello!</text>
          <text class="welcome-subtitle">欢迎登录访客管理系统</text>
        </view>
      </view>
    </view>
    
    <!-- 登录表单 -->
    <view class="login-form">
        <view class="form-item">
          <view class="input-wrapper">
            <image src="/static/username.png" class="input-icon" mode="aspectFit"></image>
            <view class="input-divider"></view>
            <input 
              v-model="form.username" 
              placeholder="请输入用户名" 
              class="form-input"
              :disabled="loading"
              @input="clearError" />
          </view>
        </view>
        
        <view class="form-item">
          <view class="input-wrapper">
            <image src="/static/pwd.png" class="input-icon" mode="aspectFit"></image>
            <view class="input-divider"></view>
            <input 
              v-model="form.password" 
              placeholder="请输入密码" 
              password
              class="form-input"
              :disabled="loading"
              @input="clearError"
              @confirm="handleLogin" />
          </view>
        </view>
      
      <view v-if="errorMsg" class="error-message">
        <text>{{ errorMsg }}</text>
      </view>
    </view>
    
    <!-- 登录按钮 -->
    <view class="login-actions">
      <button 
        @click="handleLogin" 
        class="login-btn"
        :class="{ 'loading': loading }"
        :disabled="loading">
        {{ loading ? '登录中...' : '立即登录' }}
      </button>
    </view>
    
    <view class="footer">
      <text class="copyright">© BD管理系统</text>
    </view>
  </view>
</template>

<script>
export default {
  data() {
    return {
      form: {
        username: '',
        password: ''
      },
      loading: false,
      errorMsg: ''
    }
  },
  
  onLoad() {
    // 检查是否已经登录
    this.checkLoginStatus()
  },
  
  methods: {
    // 检查登录状态
    checkLoginStatus() {
      try {
        const lifeData = uni.getStorageSync('mkwcancel_lifeData')
        if (lifeData && lifeData.vuex_token) {
          // 已登录，直接跳转
          uni.reLaunch({
            url: '/pages/index/index'
          })
        }
      } catch (e) {
        console.error('检查登录状态失败:', e)
      }
    },
    
    // 清除错误信息
    clearError() {
      this.errorMsg = ''
    },
    
    // 表单验证
    validateForm() {
      if (!this.form.username.trim()) {
        this.errorMsg = '请输入用户名'
        return false
      }
      if (!this.form.password.trim()) {
        this.errorMsg = '请输入密码'
        return false
      }
      if (this.form.username.length < 2) {
        this.errorMsg = '用户名至少2个字符'
        return false
      }
      if (this.form.password.length < 4) {
        this.errorMsg = '密码至少4个字符'
        return false
      }
      return true
    },
    
    // 登录处理
    async handleLogin() {
      if (this.loading) return
      
      if (!this.validateForm()) {
        return
      }
      
      this.loading = true
      this.errorMsg = ''
      
      try {
        // 调用登录接口
        const loginRes = await this.$u.api.login({
          username: this.form.username,
          password: this.form.password
        })
        
        console.log('登录结果:', loginRes)
        
        if (loginRes && loginRes.access_token) {
          // 登录成功，存储access_token
          const token = loginRes.access_token
          
          // 存储到vuex和本地存储
          this.$u.vuex('vuex_token', token)
          
          // 获取用户信息
          try {
            const userRes = await this.$u.api.user()
            console.log('用户信息:', userRes)
            
            if (userRes && userRes) {
              // 存储用户信息
              this.$u.vuex('vuex_user', userRes)
              
              // 登录成功提示
              uni.showToast({
                title: '登录成功',
                icon: 'success'
              })
              
              // 延迟跳转，让用户看到成功提示
              setTimeout(() => {
                uni.reLaunch({
                  url: '/pages/index/index'
                })
              }, 1500)
              
            } else {
              this.errorMsg = userRes?.errmsg || '获取用户信息失败'
              // 清除token
              this.$u.vuex('vuex_token', '')
            }
          } catch (userError) {
            console.error('获取用户信息失败:', userError)
            this.errorMsg = '获取用户信息失败，请重试'
            // 清除token
            this.$u.vuex('vuex_token', '')
          }
          
        } else {
          this.errorMsg = loginRes?.errmsg || '登录失败，请检查用户名和密码'
        }
        
      } catch (error) {
        console.error('登录失败:', error)
        this.errorMsg = '网络错误，请检查网络连接后重试'
      } finally {
        this.loading = false
      }
    }
  }
}
</script>

<style lang="scss" scoped>
.login-container {
  min-height: 100vh;
  position: relative;
  width: 100%;
  padding: 40rpx;
  box-sizing: border-box;
}

.background-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  object-fit: cover;
}

.login-header {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  
  .header-content {
    display: flex;
    align-items: center;
    
    .header-logo {
      width: 80rpx;
      height: 80rpx;
      margin-right: 24rpx;
      
      @media (max-width: 750px) {
        width: 64rpx;
        height: 64rpx;
        margin-right: 20rpx;
      }
    }
    
    .header-text {
      display: flex;
      flex-direction: column;
      
      .welcome-title {
        font-size: 64rpx;
        font-weight: bold;
        color: #333;
        margin-bottom: 8rpx;
        line-height: 1;
        
        @media (max-width: 750px) {
          font-size: 48rpx;
          color: #fff;
        }
      }
      
      .welcome-subtitle {
        font-size: 32rpx;
        color: #333;
        line-height: 1;
        
        @media (max-width: 750px) {
          font-size: 28rpx;
          color: #fff;
        }
      }
    }
  }
}

.login-form {
  width: 100%;
  max-width: 600rpx;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  
  .form-item {
    margin-bottom: 40rpx;
    
    &:last-child {
      margin-bottom: 0;
    }
  }
}

.input-wrapper {
  display: flex;
  align-items: center;
  background: #f0f0f0;
  border-radius: 44rpx;
  padding: 0 24rpx;
  border: none;
  transition: all 0.3s ease;
  
  &:focus-within {
    background: #ffffff;
    box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.1);
  }
  
  .input-icon {
    width: 36rpx;
    height: 36rpx;
    margin-right: 20rpx;
    opacity: 0.7;
    
    @media (max-width: 750px) {
      width: 32rpx;
      height: 32rpx;
      margin-right: 16rpx;
    }
  }
  
  .input-divider {
    width: 2rpx;
    height: 60rpx;
    background-color: #d0d0d0;
    margin-right: 20rpx;
    
    @media (max-width: 750px) {
      height: 50rpx;
      margin-right: 16rpx;
    }
  }
  
  @media (max-width: 750px) {
    border-radius: 40rpx;
  }
  
  .form-input {
    flex: 1;
    height: 88rpx;
    font-size: 32rpx;
    color: #333;
    background: transparent;
    border: none;
    
    @media (max-width: 750px) {
      height: 80rpx;
      font-size: 28rpx;
    }
    
    @media (min-width: 768px) {
      height: 100rpx;
      font-size: 36rpx;
    }
  }
}

.error-message {
  background: #fef0f0;
  border: 1rpx solid #fcdcdc;
  border-radius: 8rpx;
  padding: 20rpx 24rpx;
  margin-bottom: 30rpx;
  
  text {
    color: #f56c6c;
    font-size: 26rpx;
    
    @media (max-width: 750px) {
      font-size: 24rpx;
    }
  }
}

.login-actions {
  position: absolute;
  top: 75%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  width: 100%;
  max-width: 600rpx;
  
  .login-btn {
    width: 100%;
    height: 88rpx;
    background: #18284b;
    color: #ffffff;
    border: none;
    border-radius: 44rpx;
    font-size: 32rpx;
    font-weight: 600;
    transition: all 0.3s ease;
    
    @media (max-width: 750px) {
      height: 80rpx;
      font-size: 28rpx;
      border-radius: 40rpx;
    }
    
    @media (min-width: 768px) {
      height: 100rpx;
      font-size: 36rpx;
    }
    
    &:not(:disabled):active {
      transform: translateY(2rpx);
      box-shadow: 0 4rpx 12rpx rgba(0, 69, 147, 0.3);
    }
    
    &:disabled {
      opacity: 0.6;
      cursor: not-allowed;
    }
    
    &.loading {
      background: #c0c4cc;
    }
  }
}

.footer {
  text-align: center;
  position: absolute;
  bottom: 8%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  width: 100%;
  
  .copyright {
    font-size: 24rpx;
    color: #666666;
    
    @media (max-width: 750px) {
      font-size: 22rpx;
    }
  }
}

/* 响应式优化 */
@media (max-width: 750px) {
  .login-container {
    padding: 20rpx;
  }
  
  .login-card {
    padding: 40rpx 30rpx;
  }
  
  .login-header {
    margin-bottom: 40rpx;
  }
  
  .login-actions {
    margin-top: 40rpx;
  }
}
</style>