一:系统功能:设置成绩(添加或修改)

交互逻辑:涉及页面 Page02.vue,ModalEdit.vue

点击成绩修改按钮弹出 成绩修改页面,展示分数并可设置分数
点击提交发送请求/api/baseStudentCourse/updata
成功则返回上一页面进行刷新数据发送请求/api/baseStudentCourse/list

主页面Page.vue注入子页面,使用子页面标签属性

<el-table-column label="操作" width="380">
        <template #default="{ row, $index }">
          <el-button size="mini" type="warning" @click="editItem(row, $index)"  @updateData="handleData"  >成绩修改</el-button>
          <el-button size="mini" type="warning" @click="addItem(row, $index)"  @updateData="handleData"  >成绩添加</el-button>
          <el-button size="mini" type="danger" @click="handleDeleteCourse(row, $index)"  @updateData="handleData"  >删除选课</el-button>
        </template>
      </el-table-column>
    </el-table>
<ModalEdit v-model:visible="showModal" :edit-data="editData" :show-flag = "showFlag" @refreshData="refreshData" />
<ModalCourseAdd v-model:visible="showModalAddCourse" @refreshData="refreshData" />
<script setup>
import { useRouter } from 'vue-router';
import {onMounted, ref} from 'vue';
import axios from "axios";
import ModalEdit from "./ModalEdit.vue";
import ModalCourseAdd from "./ModalCourseAdd.vue";
const showModal = ref(false);
const showModalAddCourse = ref(false);
const editData = ref(null);
const showFlag = ref(String);

主页面对子页面做通信,子页面ModalEdit接收参数和监听时间涉及到组件props,watch

子页面ModalEdit通过props属性接收控制属性

在 Vue.js 中,props 用于接收来自父组件的数据。这里定义了三个属性(props):visible、editData 和 showFlag。我将逐一分析这些属性

父页面Page当点击add或edit, 设置这个showModal.value属性为true(v-model:visible=“showModal”),这里showModal,并给editData赋值
在 Vue 3 中,v-model 可以绑定到组件的任意 prop 上,这里它绑定了 showModal 数据属性,这意味着 showModal 的值将与 ModalEdit 组件内部的 visible 状态保持同步。当 ModalEdit 组件的 visible 状态改变时,它会更新父组件的 showModal 数据属性,反之亦然。
:show-flag=“showFlag”: 类似地,这也是一个动态 prop 绑定,将父组件中的 showFlag 数据传递给 ModalEdit 组件。showFlag 可能用于控制模态框中某些元素的显示或隐藏。

const editItem = (item, index) => {
  editData.value = item;
  showModal.value = true; //  v-model:visible="showModal"
  showFlag.value = '成绩修改';
};
const addItem = (item, index) => {
  editData.value = item;
  showModal.value = true;
  showFlag.value = '成绩添加';
};

watch是vue组件的一个选项,这里是用来监视visible这个数据属性的变化;
父页面visible属性默认是false

<ModalEdit v-model:visible="showModal" :edit-data="editData" :show-flag = "showFlag" @refreshData="refreshData" />
const showModal = ref(false);

父页面点击操作visible设置true,子页面同时watch监听visible发生变化,editData展示和渲染默认成绩数据,visible 为true展示页面(默认隐藏)

watch: {
    visible() {
      this.formData.id = this.editData.id; // 初始化id字段
      this.formData.score = this.editData.score;
      // this.formData.score = this.editData.score;
    }
  },
  props: {
    visible: {
      type: Boolean,
      required: true
    },
    editData: {
      type: Object,
      default: () => ({})
    },
    showFlag: {
      type: Object,
      default: () => ({})
    }
  },

子页面ModalEdit向父页面传递参数

这部分定义了该组件可能向父组件发出的三个自定义事件:
update:visible:通常用于更新一个名为 visible 的 prop 的值,这是 Vue 的 .sync 修饰符常用的模式。
submit:可能是当表单数据被提交时触发的事件。
refreshData:可能是当数据更新后,通知父组件刷新或重新获取数据的事件。

这里主要用了refreshData事件:当子页面更新成功后通知父组件事件函数(重新请求刷新数据)
ModalEdit
子页面:

this.$emit('refreshData', { // 假设服务器返回了更新后的数据,或者你可以传递更新后的id和score
            success: true,
            message: resp.data.message,
 });

父页面:

<template>
		<ModalEdit v-model:visible="showModal" :edit-data="editData" :show-flag = "showFlag" @refreshData="refreshData" />
</template>
<script setup>
// 成绩修改
const refreshData = () => {
  axios.post("/api/baseStudentCourse/list", {
    id: localStorage.getItem('id')}).then(resp => {
    if (resp.data.code === 200) {
      tableData.value = resp.data.data
    } else {
      alert(resp.data.message);
    }
  })
  showModal.value = false;
  showModalAddCourse.value = false;
} ;
</script>
  emits: ['update:visible', 'submit', 'refreshData'],
  methods: {
    handleSubmit() {
      // 确保发送完整对象,包含id字段
      this.$emit('submit', { ...this.formData });
    },
    closeModal() {
      this.$emit('update:visible', false);
    },
    // 成绩录入/修改
    submit () {
      debugger
      console.log(this.formData)
      // 编辑逻辑
      const response = axios.post("/api/baseStudentCourse/update", {
        id: this.formData.id,
        score: this.formData.score
      }).then(resp => {
        if (resp.data.code === 200) {
          alert(resp.data.message);
          // 发送一个事件给父组件,表示数据已更新
          this.$emit('refreshData', { // 假设服务器返回了更新后的数据,或者你可以传递更新后的id和score
            success: true,
            message: resp.data.message,
          });
        } else {
          alert(resp.data.message);
        }
      })
    }
  }

二:系统功能:添加选课

父组件与子组件交互和上述设置成绩交互逻辑一致,
主要是多了进入子页面展示下拉列表:v-for,

<form @submit.prevent="handleSubmit">
   <label>
     选择学生:
     <select v-model="formData.student">
       <option v-for="student in students" :key="student.id" :value="student.id">
         {{ student.name }}
       </option>
     </select>
   </label>
   <label>
     选择课程:
     <select v-model="formData.course">
       <option v-for="course in courses" :key="course.id" :value="course.id">
         {{ course.name }}
       </option>
     </select>
   </label>
   <!-- 其他需要编辑的字段也可以在这里添加 -->
   <button type="submit" @click="submit">提交</button>
   <button @click="closeModal">取消</button>
 </form>
<script>
import axios from "axios";

export default {
  props: {
    visible: {
      type: Boolean,
      required: true
    },
    showFlag: {
      type: Object,
      default: () => ({})
    }
  },
  emits: ['update:visible', 'submit', 'refreshData'],
  data() {
    return {
      formData: {
        id: null, // 添加id字段
        score: null
      }
    };
  },
  created () {
    axios.post("/api/student/list", {}).then(res => {
      if (res.data.code === 200) {
        debugger
        this.students = res.data.data
      }
    })
    axios.post("/api/course/list", {}).then(resp => {
      if (resp.data.code === 200) {
        debugger
        this.courses = resp.data.data
      }
    })
    console.log("准备输出课程和学生信息")
    console.log(this.courses)
    console.log(this.students)
  },
  methods: {
    closeModal() {
      this.$emit('update:visible', false);
    },
    // 成绩录入/修改
    submit() {
      console.log(this.formData)
      // 编辑逻辑
      axios.post("/api/baseStudentCourse/save", {
        studentId: this.formData.student,
        courseId: this.formData.course,
        teacherId: localStorage.getItem('id')
      }).then(resp => {

三:系统功能:删除选课

直接删除当前行数据
// 删除选课

const handleDeleteCourse = (row, index) => {
  console.log(row)
  axios.post("/api/baseStudentCourse/delete", {
    id: row.id
  }).then(resp => {
    if (resp.data.code === 200) {
      alert(resp.data.message);
      axios.post("/api/baseStudentCourse/list", {
        id: localStorage.getItem('id')}).then(resp => {
        if (resp.data.code === 200) {
          tableData.value = resp.data.data
        } else {
          alert(resp.data.message);
        }
      })
    } else {
      alert(resp.data.message);
    }
  })
};

四:相关页面完整代码

Page02.vue

<template>
  <div class="container">
    <div class="title-container" style="margin-top: 20px;">
      <h3 class="title">学生管理平台</h3>
    </div>
    <div class="user-info">
      <div class="buttons">
        <el-button size="mini" class="user-button primary" @click="handleAddCourse()" :closeCourseModal = "closeModal">添加选课</el-button>
        &emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;
        &emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;
        &emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;
        &emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;
        <span><b>当前用户:</b></span>{{currentUser}}
        <el-button size="mini" class="user-button" @click="resetUser()">注销当前用户</el-button>
      </div>
<!--      <h5 class="user-name">当前登录用户:{{ localStorageValue }}</h5>-->
    </div>
    <el-table :data="tableData">
      <el-table-column prop="id" label="编码" width="100"></el-table-column>
      <el-table-column prop="studentId" label="学号" width="100"></el-table-column>
      <el-table-column prop="studentName" label="学生" width="100"></el-table-column>
      <el-table-column prop="courseName" label="课程" width="180"></el-table-column>
      <el-table-column prop="majorName" label="专业" width="100"></el-table-column>
      <el-table-column prop="score" label="分数" width="100"></el-table-column>
      <el-table-column prop="teacherName" label="教师" width="100"></el-table-column>
      <el-table-column label="操作" width="380">
        <template #default="{ row, $index }">
          <el-button size="mini" type="warning" @click="editItem(row, $index)"  @updateData="handleData"  >成绩修改</el-button>
          <el-button size="mini" type="warning" @click="addItem(row, $index)"  @updateData="handleData"  >成绩添加</el-button>
          <el-button size="mini" type="danger" @click="handleDeleteCourse(row, $index)"  @updateData="handleData"  >删除选课</el-button>
        </template>
      </el-table-column>
    </el-table>
    <ModalEdit v-model:visible="showModal" :edit-data="editData" :show-flag = "showFlag" @refreshData="refreshData" />
    <ModalCourseAdd v-model:visible="showModalAddCourse" @refreshData="refreshData" />
  </div>
</template>

<script setup>
import { useRouter } from 'vue-router';
import {onMounted, ref} from 'vue';
import axios from "axios";
import ModalEdit from "./ModalEdit.vue";
import ModalCourseAdd from "./ModalCourseAdd.vue";
const tableData = ref([]); // 使用ref来创建响应式数据
onMounted(async () => {
    const response = await axios.post("/api/baseStudentCourse/list", {
      id: localStorage.getItem('id')});
    tableData.value = response.data.data; // 将请求结果赋值给响应式数据
});
const currentUser = localStorage.getItem("username");
const showModal = ref(false);
const showModalAddCourse = ref(false);
const editData = ref(null);
const showFlag = ref(String);
const editItem = (item, index) => {
  editData.value = item;
  showModal.value = true;
  showFlag.value = '成绩修改';
};

const addItem = (item, index) => {
  editData.value = item;
  showModal.value = true;
  showFlag.value = '成绩添加';
};

const closeModal = () => {
  showModalAddCourse.value = false
};


const handleData = () => {
  console.log("Page02 handleData")
  const response = axios.post("/api/baseStudentCourse/list", {
    id: localStorage.getItem('id')});
  tableData.value = response.data.data; // 将请求结果赋值给响应式数据;
  console.log(response)
};

const router = useRouter();
const resetUser = () => {
  // 编辑逻辑
  const key = 'id'; // 替换为你需要获取的localStorage的key
  const value = localStorage.getItem(key);
  // 如果需要解析JSON,可以在这里进行解析
  try {
    axios.post("/api/base/reset", {
      id: localStorage.getItem('id')
    }).then(resp => {
      if (resp.data.code === 200) {
        alert(resp.data.message);
        localStorage.removeItem(localStorage.getItem('id'))
        router.push('/')
      } else {
        alert(resp.data.message);
      }
    })
  } catch (error) {
    console.error(error);
    // 处理错误
  }
};

// 添加选课
const handleAddCourse = () => {
  debugger
  // editData.value = item;
  showModalAddCourse.value = true;
};

// 删除选课
const handleDeleteCourse = (row, index) => {
  console.log(row)
  axios.post("/api/baseStudentCourse/delete", {
    id: row.id
  }).then(resp => {
    if (resp.data.code === 200) {
      alert(resp.data.message);
      axios.post("/api/baseStudentCourse/list", {
        id: localStorage.getItem('id')}).then(resp => {
        if (resp.data.code === 200) {
          tableData.value = resp.data.data
        } else {
          alert(resp.data.message);
        }
      })
    } else {
      alert(resp.data.message);
    }
  })
};

const updateList = (updatedItem) => {
  // 假设使用index来更新list,但这种方式不推荐,如果数据顺序改变会有问题
  const index = tableData.value.findIndex(item => item.id === updatedItem.id);
  tableData.value.splice(index, 1, updatedItem);
  showModal.value = false;
};

// 成绩修改
const refreshData = () => {
  axios.post("/api/baseStudentCourse/list", {
    id: localStorage.getItem('id')}).then(resp => {
    if (resp.data.code === 200) {
      tableData.value = resp.data.data
    } else {
      alert(resp.data.message);
    }
  })
  showModal.value = false;
  showModalAddCourse.value = false;
} ;
  // console.log(""")

</script>

ModalEdit.vue

<template>
  <div v-if="visible" class="modal">
    <div class="modal-content">
<!--      <h2>编辑数据</h2>-->
      <h2>{{ showFlag }}</h2>
      <form @submit.prevent="handleSubmit">
        <label>
          分数:
          <input type="text" v-model="formData.score" />
        </label>
        <!-- 其他需要编辑的字段也可以在这里添加 -->
        <button type="submit" @click="submit()">提交</button>
        <button @click="closeModal">取消</button>
      </form>
    </div>
  </div>
</template>
<script>
import axios from "axios";

export default {
  watch: {
    visible() {
      this.formData.id = this.editData.id; // 初始化id字段
      this.formData.score = this.editData.score;
      // this.formData.score = this.editData.score;
    }
  },
  props: {
    visible: {
      type: Boolean,
      required: true
    },
    editData: {
      type: Object,
      default: () => ({})
    },
    showFlag: {
      type: Object,
      default: () => ({})
    }
  },
  emits: ['update:visible', 'submit', 'refreshData'],
  data() {
    return {
      formData: {
        id: null, // 添加id字段
        score: null
      }
    };
  },

  methods: {
    handleSubmit() {
      // 确保发送完整对象,包含id字段
      this.$emit('submit', { ...this.formData });
    },
    closeModal() {
      this.$emit('update:visible', false);
    },
    // 成绩录入/修改
    submit () {
      debugger
      console.log(this.formData)
      // 编辑逻辑
      const response = axios.post("/api/baseStudentCourse/update", {
        id: this.formData.id,
        score: this.formData.score
      }).then(resp => {
        if (resp.data.code === 200) {
          alert(resp.data.message);
          // 发送一个事件给父组件,表示数据已更新
          this.$emit('refreshData', { // 假设服务器返回了更新后的数据,或者你可以传递更新后的id和score
            success: true,
            message: resp.data.message,
          });
        } else {
          alert(resp.data.message);
        }
      })
    }
  }
};
</script>

<style scoped>
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background-color: #fff;
  padding: 20px;
  border-radius: 5px;
}
</style>

ModalCourseAdd.vue

<template>
  <div v-if="visible" class="modal">
    <div class="modal-content">
      <h2>添加选课</h2>
      <form @submit.prevent="handleSubmit">
        <label>
          选择学生:
          <select v-model="formData.student">
            <option v-for="student in students" :key="student.id" :value="student.id">
              {{ student.name }}
            </option>
          </select>
        </label>
        <label>
          选择课程:
          <select v-model="formData.course">
            <option v-for="course in courses" :key="course.id" :value="course.id">
              {{ course.name }}
            </option>
          </select>
        </label>
        <!-- 其他需要编辑的字段也可以在这里添加 -->
        <button type="submit" @click="submit">提交</button>
        <button @click="closeModal">取消</button>
      </form>
    </div>
  </div>
</template>

<script>
import axios from "axios";

export default {
  props: {
    visible: {
      type: Boolean,
      required: true
    },
    showFlag: {
      type: Object,
      default: () => ({})
    }
  },
  emits: ['update:visible', 'submit', 'refreshData'],
  data() {
    return {
      formData: {
        id: null, // 添加id字段
        score: null
      }
    };
  },
  created () {
    axios.post("/api/student/list", {}).then(res => {
      if (res.data.code === 200) {
        debugger
        this.students = res.data.data
      }
    })
    axios.post("/api/course/list", {}).then(resp => {
      if (resp.data.code === 200) {
        debugger
        this.courses = resp.data.data
      }
    })
    console.log("准备输出课程和学生信息")
    console.log(this.courses)
    console.log(this.students)
  },
  methods: {
    closeModal() {
      this.$emit('update:visible', false);
    },
    // 成绩录入/修改
    submit() {
      console.log(this.formData)
      // 编辑逻辑
      axios.post("/api/baseStudentCourse/save", {
        studentId: this.formData.student,
        courseId: this.formData.course,
        teacherId: localStorage.getItem('id')
      }).then(resp => {
        if (resp.data.code === 200) {
          alert(resp.data.message);
          // 发送一个事件给父组件,表示数据已更新
          this.$emit('refreshData', { // 假设服务器返回了更新后的数据,或者你可以传递更新后的id和score
            success: true,
            message: resp.data.message,
          });
        } else {
          alert(resp.data.message);
        }
      })
    }
  }
};
</script>

<style scoped>
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background-color: #fff;
  padding: 20px;
  border-radius: 5px;
}
</style>

五:页面运效果

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GitHub 加速计划 / vu / vue
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vuejs/vue: 是一个用于构建用户界面的 JavaScript 框架,具有简洁的语法和丰富的组件库,可以用于开发单页面应用程序和多页面应用程序。
最近提交(Master分支:2 个月前 )
73486cb5 * chore: fix link broken Signed-off-by: snoppy <michaleli@foxmail.com> * Update packages/template-compiler/README.md [skip ci] --------- Signed-off-by: snoppy <michaleli@foxmail.com> Co-authored-by: Eduardo San Martin Morote <posva@users.noreply.github.com> 4 个月前
e428d891 Updated Browser Compatibility reference. The previous currently returns HTTP 404. 5 个月前
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