调整日志记录信息

biz/export/csv_exporter.go

@@ -36,33 +36,38 @@ func (ee *CsvExporter) WaitGroup(wg *sync.WaitGroup) {
 }
 
 func (ee *CsvExporter) Export(sql, pk string) error {
+	begin := time.Now()
 	data, err := ee.mFetcher.Fetch(sql)
 	if err != nil {
 		return fmt.Errorf("数据获取错误:%w", err)
 	}
-	ee.count = len(data.Data)
-	//fmt.Printf("Excel Exporter.Excel, got %v data\n", len(data))
-	go func() {
-		begin := time.Now()
-		ee.file.Open()
-		ee.file.WriteTitle(data.Title)
+	log.Printf("数据获取耗时：%s \n", time.Now().Sub(begin).String())
 
-		for _, val := range data.Data {
-			row := val
-			ee.file.Write(row)
-		}
-		ee.file.Close()
-		ee.wg.Done()
-		end := time.Now()
-		log.Println("csv time:%s", end.Sub(begin).String())
-	}()
+	ee.count = len(data.Data)
 	if ee.count > 0 {
+		//异步导出数据到csv文件中
+		go ee.exportToCsv(data)
 		last := data.Data[ee.count-1]
 		ee.last = last[ee.getPkIndex(data.Title, pk)]
 	}
 	return nil
 }
 
+func (ee *CsvExporter) exportToCsv(data *Data) {
+	begin := time.Now()
+	ee.file.Open()
+	ee.file.WriteTitle(data.Title)
+
+	for _, val := range data.Data {
+		row := val
+		ee.file.Write(row)
+	}
+	ee.file.Close()
+	ee.wg.Done()
+	end := time.Now()
+	log.Printf("csv time:%s\n", end.Sub(begin).String())
+}
+
 func (ee *CsvExporter) Last() (int, interface{}) {
 	return ee.count, ee.last
 }