ruoyi框架用户上传excel表格解析之后，跳转详情页面进行回显页面一：上传excel文件，发送ajax请求到后端读取文件保存。$.ajax({url: prefix + "/importData/"+ id ,type: 'post',data: formData,dataType: "json",success: function

目标sql:select*from copy666 jeeleft join ga_bu ogb on jee.ga_bu_code = ogb.bu_codeleft join ga_coa coa on jee.ga_coa_sub = coa.sub AND jee.ga_coa_obj = coa.objwhere jee.year = '2020'select * 比较慢 9w条数据就用