The actual application case sharing of the JXLS Reader framework in enterprise applications
The actual application case sharing of the JXLS Reader framework in enterprise applications
JXLS Reader is a Java -based open source framework that is used to read and analyze Excel files in enterprise applications.It provides easy -to -use API and rich features, making it more convenient and efficient when processing Excel data.The application of the JXLS Reader framework will be shared by an actual case.
Suppose we have a shopping mall order management system that generates thousands of order data every day. We need to read these order data from the Excel file and process it.The following is an example code that uses JXLS Reader framework to read Excel data:
public class OrderReader {
public List<Order> readOrdersFromExcel(String filePath) {
try (InputStream input = new FileInputStream(filePath)) {
try (Workbook workbook = WorkbookFactory.create(input)) {
Sheet sheet = workbook.getSheetAt(0);
Row headerRow = sheet.getRow(0);
List<Order> orders = new ArrayList<>();
for (int rowIndex = 1; rowIndex <= sheet.getLastRowNum(); rowIndex++) {
Row currentRow = sheet.getRow(rowIndex);
Order order = new Order();
for (int cellIndex = 0; cellIndex < headerRow.getLastCellNum(); cellIndex++) {
Cell cell = currentRow.getCell(cellIndex);
switch (headerRow.getCell(cellIndex).getStringCellValue()) {
Case "Order Number":
order.setOrderNumber(cell.getStringCellValue());
break;
Case "Product Name":
order.setProductName(cell.getStringCellValue());
break;
Case "Commodity Price":
order.setProductPrice(cell.getNumericCellValue());
break;
// Reading and setting of other order attributes
}
}
orders.add(order);
}
return orders;
}
} catch (Exception e) {
e.printStackTrace();
}
return Collections.emptyList();
}
}
In the above code, we use JXLS Reader to load the excel file into the workbook object by input stream.Then, we get the first sheet and traverse each line. Read the corresponding cell data according to the list of the header, and store the order object in one list.
The use of the JXLS Reader framework has the following advantages:
1. Simplify the code of processing Excel files and improve development efficiency.
2. Support processing large excel files to ensure reading performance.
3. Provide a wealth of API to make it more flexible and convenient when processing complex Excel files.
4. You can achieve more advanced functions through annotations or XML configuration files, such as formatting dates, processing Excel formulas, etc.
Summarize:
The JXLS Reader framework has a wide range of application scenarios in corporate applications, especially when a large amount of Excel data needs to be processed.By providing simple and easy -to -use APIs and powerful functions, it helps developers to read and analyze Excel files more efficiently, and perform subsequent data processing and analysis.In the actual production environment, JXLS Reader has been widely used in business scenarios such as order management and reporting of various industries.
