vue 怎么将表单的值（字符串和数组格式）传给后台

谁借莪１个温暖的怀抱￠ 2022-11-20 09:40 521阅读 0赞

前几天使用vue-element-admin框架开发了一个简单的后台管理系统，在开发的过程之中也遇到了一些功能，以及对饿了么框架的使用遇到的一些问题，如何解决问题，记录一下。

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资料相关

vue-element-admin

推荐指数：star:55k  
Github 地址：[https://github.com/PanJiaChen/vue-element-admin][https_github.com_PanJiaChen_vue-element-admin]  
Demo体验：[https://panjiachen.github.io/vue-element-admin/\#/dashboard][https_panjiachen.github.io_vue-element-admin_dashboard]

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今天记录一个功能，提交表单的数据给后端，提交表单时候的请求参数差不多是这样子的，其中有单选框，下选框，（下拉框可以选择一个值，也可以选择多个值），以字符串数组的格式提交。

请求报文如下

{"questionContent":"题目1","correctAnswer":"正确答案","otherAnswer1":"错误答案1","otherAnswer2":"错误答案2","otherAnswer3":"错误答案3","userGrades":["kinderGarten","firstGrade","threeGrade","sixGrade"],"questionCategory":"简单"}

具体提交格式需要注意：  
1：input输入框提交类型为字符串  
2：radio只能单选，每次只能提交一个，类型为字符串  
3：下拉框（年级）为数组，当选择一个option或者多个option的时候，格式都为字符串数组形式。

点击按钮，会出现一个弹框，在弹框里面有form表单，填写表单数据，再次点击确定的时候，调用一下保存的接口，将填写的数据提交给后端。

示例代码

<template>
      <div class="tab-container">
        <el-button
          class="filter-item"
          style="margin-left: 10px;"
          type="primary"
          icon="el-icon-edit"
          @click="handleCreate"
        >添加</el-button>
        <el-dialog :visible.sync="dialogFormVisible">
          <el-form
            :model="questionForm"
            ref="dataForm"
            label-position="left"
            label-width="90px"
            style="width: 400px; margin-left:50px;"
          >
            <el-form-item label="题目" prop="questionContent">
              <el-input type="textarea" :rows="2" v-model="questionForm.questionContent"></el-input>
            </el-form-item>
            <el-form-item label="分类">
              <el-radio-group v-model="questionForm.questionCategory" style="margin-right:12px;">
                <el-radio v-for="(radio, index) in subjectList" :key="index" :label="radio">{
       {radio}}</el-radio>
              </el-radio-group>
            </el-form-item>
            <el-form-item label="正确答案" prop="correctAnswer">
              <el-input v-model="questionForm.correctAnswer" />
            </el-form-item>
            <el-form-item label="其他答案1" prop="otherAnswer1">
              <el-input v-model="questionForm.otherAnswer1" />
            </el-form-item>
            <el-form-item label="其他答案2" prop="otherAnswer2">
              <el-input v-model="questionForm.otherAnswer2" />
            </el-form-item>
            <el-form-item label="其他答案3" prop="otherAnswer3">
              <el-input v-model="questionForm.otherAnswer3" />
            </el-form-item>
            <el-form-item label="所属年级">
              <el-select
                v-model="questionForm.userGrades"
                class="filter-item"
                placeholder="选择年级"
                multiple
              >
                <el-option
                  v-for="item in tabMapOptions"
                  :key="item.key"
                  :label="item.label"
                  :value="item.key"
                />
              </el-select>
            </el-form-item>
          </el-form>
          <div slot="footer" class="dialog-footer">
            <el-button @click="dialogFormVisible = false">取消</el-button>
            <el-button type="primary" @click=" createData() ">确定</el-button>
          </div>
        </el-dialog>
      </div>
    </template>
    <script>
    //调用接口
    import { saveSubject } from "@/api/content";
    export default {
      data() {
        return {
          subjectList: ["黄金", "白银", "钻石"],
          input: "",
          tabMapOptions: [
            { label: "幼儿园", key: "kinderGarten" },
            { label: "一年级", key: "firstGrade" },
            { label: "二年级", key: "secondGrade" },
            { label: "三年级", key: "threeGrade" },
            { label: "四年级", key: "fourthGrade" },
            { label: "五年级", key: "fifthGrade" },
            { label: "六年级", key: "sixGrade" },
            { label: "小学以上", key: "gradeSchool" },
          ],
    
          questionForm: {
            questionContent: "",
            correctAnswer: "",
            otherAnswer1: "",
            otherAnswer2: "",
            otherAnswer3: "",
            userGrades: [],
            questionCategory: "",
          },
          dialogFormVisible: false,
        };
      },
      methods: {
        handleCreate() {
          this.questionForm = {
            questionContent: "",
            correctAnswer: "",
            otherAnswer1: "",
            otherAnswer2: "",
            otherAnswer3: "",
            userGrades: [],
            questionCategory: "",
          };
          this.dialogFormVisible = true;
        },
        //添加增加题目
        async createData() {
          let form = null;
          form = this.questionForm;
          const params = form;
          const res = await saveSubject(params);
          console.log(res);
          if (res.code === "0000") {
            this.$message({
              type: "info",
              message: "保存成功",
            });
            this.dialogFormVisible = false;
            this.getQuerySubjectList();
            return;
          }
          this.$message({
            type: "error",
            message: "保存失败",
          });
        },
      },
    };
    </script>
    <style scoped>
    .tab-container {
      margin: 30px;
    }
    </style>

![format_png][]

查看请求报文：

![format_png 1][]

提交成功

![format_png 2][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM2NTM4MDEy_size_16_color_FFFFFF_t_70][]

[https_github.com_PanJiaChen_vue-element-admin]: https://links.jianshu.com/go?to=https%3A%2F%2Fgithub.com%2FPanJiaChen%2Fvue-element-admin
[https_panjiachen.github.io_vue-element-admin_dashboard]: https://links.jianshu.com/go?to=https%3A%2F%2Fpanjiachen.github.io%2Fvue-element-admin%2F%23%2Fdashboard
[format_png]: /images/20221120/6ecadc8baf02424597500c4c323a1b31.png
[format_png 1]: /images/20221120/fef12f54455f4c30aeba43c6a229c31b.png
[format_png 2]: /images/20221120/c350e9eb8c654943a1301d682e9df427.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM2NTM4MDEy_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/2020111711093933.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM2NTM4MDEy,size_16,color_FFFFFF,t_70