Home > Article > Backend Development > How to use Go language to develop the report generation function of the ordering system
How to use Go language to develop the report generation function of the ordering system
Introduction:
With the continuous development of society and changes in people's consumption concepts, the catering industry Competition intensifies. In order to better manage restaurant operations, it is necessary to develop an efficient ordering system. In addition to the basic ordering function, the report generation function is an important part of catering management. This article will introduce how to use Go language to develop the report generation function of the ordering system and provide specific code examples.
1. Technology Selection
When developing the report generation function of the ordering system, we chose Go language as the development language. Go language has the characteristics of high concurrency, high performance and simplicity, and is very suitable for developing back-end applications. At the same time, the Go language has a wealth of third-party libraries and development tools, which can greatly improve development efficiency.
2. Data storage solution
In the ordering system, report generation requires statistical analysis based on historical order data. Therefore, we need to choose a suitable data storage solution. Here, we recommend using MySQL database for data storage and management. MySQL is a commonly used relational database with stability and scalability.
3. Report generation process
4. Code Examples
Next, we will provide some specific code examples to help you understand how to implement the report generation function of the ordering system in the Go language.
router.POST("/order", func(c *gin.Context) { var order Order if err := c.BindJSON(&order); err != nil { c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()}) return } // 将订单数据存入数据库 db.Create(&order) c.JSON(http.StatusOK, gin.H{"message": "Order success"}) })
func GetDishSalesCount() (map[string]int, error) { rows, err := db.Raw("SELECT dish, COUNT(*) as count FROM orders GROUP BY dish").Rows() if err != nil { return nil, err } result := make(map[string]int) defer rows.Close() for rows.Next() { var dish string var count int rows.Scan(&dish, &count) result[dish] = count } return result, nil }
func GenerateReport(data map[string]int) error { f := excelize.NewFile() f.SetCellValue("Sheet1", "A1", "菜品") f.SetCellValue("Sheet1", "B1", "销售数量") row := 2 for dish, count := range data { f.SetCellValue("Sheet1", fmt.Sprintf("A%d", row), dish) f.SetCellValue("Sheet1", fmt.Sprintf("B%d", row), count) row++ } if err := f.SaveAs("report.xlsx"); err != nil { return err } return nil }
Conclusion:
By using the Go language to develop the report generation function of the ordering system, we can Better manage restaurant operations. This article introduces technology selection, data storage solutions, report generation process and code examples, hoping to help you when developing a food ordering system. Of course, the specific implementation method needs to be adjusted and improved according to actual needs.
The above is the detailed content of How to use Go language to develop the report generation function of the ordering system. For more information, please follow other related articles on the PHP Chinese website!