订单下载。jd下单。。

pkg/utils/tools.go

@@ -1,6 +1,7 @@
 package utils
 
 import (
+	"bytes"
 	"crypto/md5"
 	"encoding/hex"
 	"errors"
@@ -16,7 +17,6 @@ import (
 	jsoniter "github.com/json-iterator/go"
 	"github.com/zeromicro/go-zero/core/logx"
 
-	"github.com/gin-gonic/gin"
 	"github.com/xuri/excelize/v2"
 )
 
@@ -348,7 +348,8 @@ type ExcelColumn struct {
 	IsImage bool    //是否是图片
 }
 
-func ExcelExport(c *gin.Context, fileName string, columns []ExcelColumn, dataList interface{}) error {
+// 【改造后】只生成excel，返回二进制，不处理http
+func ExcelExport(columns []ExcelColumn, dataList interface{}) ([]byte, error) {
 	f := excelize.NewFile()
 	sheet := "Sheet1"
 	f.SetSheetName("Sheet1", sheet)
@@ -369,7 +370,7 @@ func ExcelExport(c *gin.Context, fileName string, columns []ExcelColumn, dataLis
 
 	items := reflect.ValueOf(dataList)
 	if items.Kind() != reflect.Slice {
-		return f.Write(c.Writer)
+		return nil, errors.New("data must be slice")
 	}
 
 	// 遍历行
@@ -392,23 +393,16 @@ func ExcelExport(c *gin.Context, fileName string, columns []ExcelColumn, dataLis
 			cellName, _ := excelize.ColumnNumberToName(colIdx + 1)
 			cellPos := cellName + strconv.Itoa(rowNum)
 
-			// ======================================
 			// 图片URL → 改为【点击查看图片】链接
-			// ======================================
 			if col.IsImage {
 				imgURL := toStr(fieldVal.Interface())
 				if imgURL != "" {
-					// 设置超链接（显示文字：点击查看图片，真正链接：imgURL）
 					_ = f.SetCellHyperLink(sheet, cellPos, imgURL, "External")
-					// 单元格显示文字
 					_ = f.SetCellValue(sheet, cellPos, "点击查看")
 				}
 				continue
 			}
 
-			// ======================================
-			// 文本/数组 自动换行
-			// ======================================
 			var cellValue interface{}
 			kind := fieldVal.Kind()
 			if kind == reflect.Slice || kind == reflect.Array {
@@ -424,7 +418,6 @@ func ExcelExport(c *gin.Context, fileName string, columns []ExcelColumn, dataLis
 			_ = f.SetCellValue(sheet, cellPos, cellValue)
 			_ = f.SetCellStyle(sheet, cellPos, cellPos, wrapStyle)
 		}
-
 		_ = f.SetRowHeight(sheet, rowNum, 30)
 	}
 
@@ -437,10 +430,12 @@ func ExcelExport(c *gin.Context, fileName string, columns []ExcelColumn, dataLis
 		_ = f.SetColWidth(sheet, colName, colName, col.Width)
 	}
 
-	// 下载
-	c.Header("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
-	c.Header("Content-Disposition", "attachment; filename="+fileName+".xlsx")
-	return f.Write(c.Writer)
+	// 写入buffer，不要直接写http
+	buf := new(bytes.Buffer)
+	if err := f.Write(buf); err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
 }
 
 // 嵌套字段取值