向后端发送删除请求报错400

向后端发送删除请求，传递JSON数据

问题相关代码

              <el-button
                type="primary"
                icon="el-icon-delete"
                size="mini"
                @click="removeDaleiByCode(scope.row.Code)"
              ></el-button>

      removeDalei:{
        Code:''
      }

async removeDaleiByCode(Code) {
      this.removeCode = Code
      // console.log(Code)
      // 弹窗询问是否删除
      const confirmResult = await this.$confirm(
        '此操作将永久删除该农产品大类, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      // 如果用户确认删除，则返回值为字符串 confirm
      // 如果用户取消删除，则返回值为字符串 cancel
      // console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      this.removeDalei.Code=Code
      
      console.log(this.removeDalei);
      const {data:res} = await this.$http.delete(
        this.hd + 'productMainCategory',
        this.removeDalei
      )
      if(res.code!== 200){
        return this.$message.error('删除失败，此大类已经被引用')
      }
      this.$message.success('删除成功')
      this.getDaLeiList()
    },

运行结果及报错内容

DELETE http://1.117.241.132:8080/sy/productMainCategory 400

[Vue warn]: Error in v-on handler (Promise/async): "Error: Request failed with status code 400"

found in

---> <ElButton> at packages/button/src/button.vue
       <ElTooltip>
         <ElTableBody>
           <ElTable> at packages/table/src/table.vue
             <ElCard> at packages/card/src/main.vue
               <MaintenanceOfAgriculturalProducts> at src/components/submenu/MaintenanceOfAgriculturalProducts.vue
                 <ElMain> at packages/main/src/main.vue
                   <ElContainer> at packages/container/src/main.vue... (1 recursive calls)
                     <Home> at src/components/Home.vue
                       <App> at src/App.vue
                         <Root>

vue.runtime.esm.js?2b0e:1888 Error: Request failed with status code 400

报错原因:前端请求的字段名称或者字段类型和后台编写的实体类不一样,或者前端提交的参数和后台需要的参数个数不匹配,导致无法封装,报错400

打开控制台，看下 network，一般后端会返回具体哪个字段不对 或者缺失

参数 传的不对吧

确认传递的参数，参数类型是否正确