学生成绩管理系统(教师端显示学生成绩完成)_web前端做一个js原生的学生成绩管理系统代码

功能概述

1.显示学生成绩

 1效果图

2.功能说明 

显示学生成绩可以完成三个显示并且是分页显示，分别是查看全部学生成绩，查看总成绩合格学生成绩，查看不合格学生总成绩。另外学生的总成绩可以根据以小到大的顺序或者相反排序。

3.技术说明

分页采用了 mybatis-plus 的分页插件 表单页面采用了 element-plus 表单组件

4.重要代码体现

1.前端表单页面设计

<div class="manage">
    <h1>学生成绩管理系统(教师端)</h1>
    <div align="left" style="margin: 10px 0">
      <el-input v-model="search" placeholder=" 请 输 入 关 键 字 " style="width: 30%"></el-input>
      <el-button style="margin-left: 10px" type="primary" @click="list">查询</el-button>
      <el-button style="margin-left: 10px" type="primary" @click="add">新增学生</el-button>
      <el-button style="margin-left: 10px" type="primary" @click="all">全部学生</el-button>
      <el-button style="margin-left: 10px" type="primary" v-model="choose" @click="qualified">合格学生</el-button>
      <el-button style="margin-left: 10px" type="primary" v-model="choose" @click="unqualified">挂科学生</el-button>
    </div>
    <el-table :data="tableData" stripe style="width: 90%">
      <el-table-column prop="username" label="学号"></el-table-column>
      <el-table-column prop="name" label="姓名"></el-table-column>
      <el-table-column prop="midscore" label="期中成绩(40%)"></el-table-column>
      <el-table-column prop="finalscore" label="期末成绩(40%)"></el-table-column>
      <el-table-column prop="dailyscore" label="平时成绩(20%)"></el-table-column>
      <el-table-column sortable prop="totalscore" label="最终成绩"></el-table-column>
      <el-table-column>
        <template #default="scope">
          <el-button v-model="choose1" @click="handleEdit(scope.row.username)" type="text">编辑</el-button>
          <el-popconfirm title="确认删除吗?" @confirm="handleDelete(scope.row.username)">
            <template #reference>
              <el-button size="small" type="danger">删除</el-button>
            </template>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>
    <el-dialog title="提示" v-model="dialogVisible" width="30%">
      <el-form :model="form" label-width="120px" :rules="rules" ref="form">
        <el-form-item label="学号" prop="username">
          <el-input v-model="form.username" style="width: 80%"></el-input>
          {{ this.validMsg.username }}
        </el-form-item>
        <el-form-item label="姓名" prop="name">
          <el-input v-model="form.name" style="width: 80%"></el-input>
          {{ this.validMsg.name }}
        </el-form-item>
        <el-form-item label="期中成绩(40%)" prop="midscore">
          <el-input v-model="form.midscore" style="width: 80%"></el-input>
          {{ this.validMsg.midscore }}
        </el-form-item>
        <el-form-item label="期末成绩(40%)" prop="finalscore">
          <el-input v-model="form.finalscore" style="width: 80%"></el-input>
          {{ this.validMsg.finalscore }}
        </el-form-item>
        <el-form-item label="平时成绩(20%)" prop="dailyscore">
          <el-input v-model="form.dailyscore" style="width: 80%"></el-input>
          {{ this.validMsg.dailyscore }}
        </el-form-item>
      </el-form>
      <template #footer><span class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button
            type="primary" @click="save()">确 定</el-button> </span>
      </template>
    </el-dialog>
    <!--添加分页导航-->
    <div style="margin: 10px 0">
      <el-pagination
          @size-change="handlePageSizeChange"
          @current-change="handleCurrentChange"
          :current-page="currentPage"
          :page-sizes="[3,5,10]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </div>
  </div>

2.后端分页显示请求设计

    //全部成绩请求
    @GetMapping(value = "/gradeByConditionPage")
    public Result listGradeByConditionPage(@RequestParam(defaultValue = "1") Integer pageNum,
                                            @RequestParam(defaultValue = "5") Integer pageSize,
                                            @RequestParam(defaultValue = "") String search) {
        LambdaQueryWrapper<Grade> queryWrapper = Wrappers.lambdaQuery();
        if (StringUtils.hasText(search)) {
            queryWrapper.like(Grade:: getName, search);
        }
        Page<Grade> page = gradeService.page(new Page<>(pageNum, pageSize), queryWrapper);
        return Result.success(page);
    }
 
   
    //不合格成绩请求
    @GetMapping(value = "/unqualified")
    public Result selectGradeUnqualified(@RequestParam(defaultValue = "1") Integer pageNum,
                                         @RequestParam(defaultValue = "5") Integer pageSize) {
        LambdaQueryWrapper<Grade> queryWrapper = Wrappers.lambdaQuery();
        queryWrapper.lt(Grade::getTotalscore, 60);
        Page<Grade> page = gradeService.page(new Page<>(pageNum, pageSize), queryWrapper);
        return Result.success(page);
    }
    //合格成绩请求
    @GetMapping(value = "/qualified")
    public Result selectGradeQualified(@RequestParam(defaultValue = "1") Integer pageNum,
                                       @RequestParam(defaultValue = "5") Integer pageSize) {
        LambdaQueryWrapper<Grade> queryWrapper = Wrappers.lambdaQuery();
        queryWrapper.ge(Grade::getTotalscore, 60);
        Page<Grade> page = gradeService.page(new Page<>(pageNum, pageSize), queryWrapper);
        return Result.success(page);
    }

总结

教师端的学生成绩显示功能分为三种情况，合格，不合格，全部，依次对应三种请求，接受三种返回数据并且完美显示到界面，后端有着 装配分页插件,使用了lambda表达式，按照条件查询数据。以上就是学生成绩显示功能，添加，删除功能后续发布，敬请期待，有缺漏的地方欢迎指正