How to use the Fastexcel Writer framework in the Java class library

Use the Fastexcel Writer framework to export Excel files in the Java class library Fastexcel Writer is a powerful framework for generating excel files in Java applications.It provides a simple and efficient way to create, modify and export Excel documents, while supporting a variety of formats such as XLS and XLSX. First, we need to add Fastexcel Writer to depend on our Maven or Gradle configuration files: Maven: <dependency> <groupId>com.github.liuhuagui</groupId> <artifactId>fastexcel-writer</artifactId> <version>1.6.0</version> </dependency> Gradle: compile 'com.github.liuhuagui:fastexcel-writer:1.6.0' Below is a simple example. It demonstrates how to use the Fastexcel Writer framework to create and export an Excel file: import com.github.liuhuagui.gridexcel.writer.ExcelWriter; import com.github.liuhuagui.gridexcel.writer.SimpleSheetWriter; import java.io.FileOutputStream; import java.io.IOException; public class ExcelExporter { public static void main(String[] args) { // Create an excelwriter object and specify the Excel file path ExcelWriter writer = new ExcelWriter(); writer.open(new FileOutputStream("example.xlsx")); // Add a worksheet SimpleSheetWriter sheetWriter = writer.createSimpleSheet("Sheet1"); // Write into the header SheetWriter.appendheaderrow ("Name", "Age", "Gender"); // data input sheetwriter.appendrow ("Zhang San", 25, "Male"); sheetwriter.appendrow ("Li Si", 30, "Male"); sheetwriter.appendrow ("Wang Wu", 28, "Female"); // Export the excel file try { writer.saveAndClose(); System.out.println ("Export success!"); } catch (IOException e) { e.printStackTrace(); } } } In this example, we first created an ExcelWriter object and specified the Excel file path to be exported.Then, we created a SimpleSheetWriter object that represents a worksheet.Next, we use the Appendheaderrow () method to write the header line, and use the APENDROW () method to write the data row.Finally, we call the SaveandClose () method to save and close the excel file. Use the Fastexcel Writer framework to easily generate an Excel file containing various data.You can customize styles according to demand, set up unit formats, etc.This framework also provides other powerful functions, such as merging unit grids, setting data verification, etc.You can refer to the official documentation of Fastexcel Writer in detail. I hope this article will help you understand the method of FASTEXCEL WRITER in the Java class library!