登录界面前端设计（基于element-ui）

element-ui官方文档

main.js

在main.js中引入element-ui

import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';

Vue.use(ElementUI);

           

引入要用的Apollo接口

const apolloClient = new ApolloClient({
  uri: "http://127.0.0.1:8000/api/graphql/"
})

// vue apollo
Vue.use(VueApollo)
const apolloProvider = new VueApollo({
  defaultClient: apolloClient,
})
           

设置组件的路由

Vue.use(VueRouter)
const routes = [
  { path: '/', component: Login },
  { path: '/category', component: WordCategory }
]
const router = new VueRouter({
  mode: 'history',
  routes,
})


Vue.config.productionTip = false

new Vue({
  render: h => h(App),
  apolloProvider,
  router,
}).$mount('#app')
           

登录页面设计

用element-ui的form表单来作为模板

官方文档给出的模板：

<el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
  <el-form-item label="活动名称" prop="name">
    <el-input v-model="ruleForm.name"></el-input>
  </el-form-item>
  <el-form-item label="活动区域" prop="region">
    <el-select v-model="ruleForm.region" placeholder="请选择活动区域">
      <el-option label="区域一" value="shanghai"></el-option>
      <el-option label="区域二" value="beijing"></el-option>
    </el-select>
  </el-form-item>
  <el-form-item label="活动时间" required>
    <el-col :span="11">
      <el-form-item prop="date1">
        <el-date-picker type="date" placeholder="选择日期" v-model="ruleForm.date1" style="width: 100%;"></el-date-picker>
      </el-form-item>
    </el-col>
    <el-col class="line" :span="2">-</el-col>
    <el-col :span="11">
      <el-form-item prop="date2">
        <el-time-picker placeholder="选择时间" v-model="ruleForm.date2" style="width: 100%;"></el-time-picker>
      </el-form-item>
    </el-col>
  </el-form-item>
  <el-form-item label="即时配送" prop="delivery">
    <el-switch v-model="ruleForm.delivery"></el-switch>
  </el-form-item>
  <el-form-item label="活动性质" prop="type">
    <el-checkbox-group v-model="ruleForm.type">
      <el-checkbox label="美食/餐厅线上活动" name="type"></el-checkbox>
      <el-checkbox label="地推活动" name="type"></el-checkbox>
      <el-checkbox label="线下主题活动" name="type"></el-checkbox>
      <el-checkbox label="单纯品牌曝光" name="type"></el-checkbox>
    </el-checkbox-group>
  </el-form-item>
  <el-form-item label="特殊资源" prop="resource">
    <el-radio-group v-model="ruleForm.resource">
      <el-radio label="线上品牌商赞助"></el-radio>
      <el-radio label="线下场地免费"></el-radio>
    </el-radio-group>
  </el-form-item>
  <el-form-item label="活动形式" prop="desc">
    <el-input type="textarea" v-model="ruleForm.desc"></el-input>
  </el-form-item>
  <el-form-item>
    <el-button type="primary" @click="submitForm('ruleForm')">立即创建</el-button>
    <el-button @click="resetForm('ruleForm')">重置</el-button>
  </el-form-item>
</el-form>
<script>
  export default {
    data() {
      return {
        ruleForm: {
          name: '',
          region: '',
          date1: '',
          date2: '',
          delivery: false,
          type: [],
          resource: '',
          desc: ''
        },
        rules: {
          name: [
            { required: true, message: '请输入活动名称', trigger: 'blur' },
            { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
          ],
          region: [
            { required: true, message: '请选择活动区域', trigger: 'change' }
          ],
          date1: [
            { type: 'date', required: true, message: '请选择日期', trigger: 'change' }
          ],
          date2: [
            { type: 'date', required: true, message: '请选择时间', trigger: 'change' }
          ],
          type: [
            { type: 'array', required: true, message: '请至少选择一个活动性质', trigger: 'change' }
          ],
          resource: [
            { required: true, message: '请选择活动资源', trigger: 'change' }
          ],
          desc: [
            { required: true, message: '请填写活动形式', trigger: 'blur' }
          ]
        }
      };
    },
    methods: {
      submitForm(formName) {
        this.$refs[formName].validate((valid) => {
          if (valid) {
            alert('submit!');
          } else {
            console.log('error submit!!');
            return false;
          }
        });
      },
      resetForm(formName) {
        this.$refs[formName].resetFields();
      }
    }
  }
</script>
           

输入框：用户名用可擦除的属性，密码用可视状态的属性

官方文档给出的模板：

<el-input
  placeholder="请输入内容"
  v-model="input"
  clearable>
</el-input>

<script>
  export default {
    data() {
      return {
        input: ''
      }
    }
  }
</script>
           

<el-input placeholder="请输入密码" v-model="input" show-password></el-input>

<script>
  export default {
    data() {
      return {
        input: ''
      }
    }
  }
</script>
           

再加一个登录按钮

<el-form-item style="width: 100%">
        <el-button
          type="primary"
          style="width: 100%"
          @click="handleSubmit"
          :loading="logining"
          >登录</el-button
        >
      </el-form-item>
           

绑定事件函数，同时加一个加载特效

最终效果：

事件处理&接口调用

apollo官方文档

handleSubmit() {
      this.$refs.ruleForm.validate((valid) => {
        const username = this.ruleForm.username
        const password = this.ruleForm.password
        if (valid) {
          this.logining = true;
          this.$apollo.mutate({
            mutation: gql`mutation ($username: String!, $password: String!){
              userLogin(username: $username, password: $password) {
                response{
                  code
                  desc
                  token  
                }
              }
            }`,
            variables: {
              username: username,
              password: password
            },
            operationName: "userLogin"
          }).then((data) => {
            const response = data.data.userLogin.response
            const code = response.code
            console.log(response)
            if(code == "0"){
                this.logining = false;
                this.$alert("用户名或密码错误!", "提示", {
                  confirmButtonText: "ok",
                });
            } else {
                sessionStorage.setItem("username", this.ruleForm.username);
                sessionStorage.setItem("token", response.token);
                this.$router.push("/category");
            }
          }).catch((error) => {
            // 错误
            console.error(error);
            this.logining = false;
            this.$alert("用户名或密码错误!", "提示", {
              confirmButtonText: "ok",
            });
          })
        } else {
          console.log("error submit!");
          return false;
        }
      });
    },
           

功能测试：

点击登录后成功进入系统