The use guide of the EasyExcel framework in the Java library

The Easianexcel framework is a Java -based Excel reading and writing operation tool. It can easily read and write operations on the Excel file and provide a simple and easy -to -use API interface.This article will introduce the use guidelines of the EasyExcel framework in the Java class library and provide some Java code examples. Using the EasyExcel framework, you need to introduce related dependence first.In the Maven project, you can add the following dependencies to the pom.xml file: <dependency> <groupId>com.alibaba</groupId> <artifactId>easyexcel</artifactId> <version>2.3.0</version> </dependency> Next, we can use the EasyExcel framework to read and write the Excel file. 1. Reading of Excel files It is very simple to read the excel file with the EasyExcel framework.By creating a listener class, you can realize the `AnalysiseventListener` interface, and rewrite the` Invoke` method in it to achieve the processing of each line of data.The following is a simple example: public class ExcelListener extends AnalysisEventListener<YourDataModel> { @Override public void invoke(YourDataModel data, AnalysisContext context) { // Treat each line of data here // Yourdatamodel is a custom data model class, which is used to store read data } @Override public void doAfterAllAnalysed(AnalysisContext context) { // The operation of the data after reading } } Then use the following code to read the excel file in the code: String fileName = "path/to/your/excel/file.xlsx"; EasyExcel.read(fileName, YourDataModel.class, new ExcelListener()).sheet().doRead(); 2. Writing of the excel file It is also simple to write the Excel file with the EasyExcel framework.First create an object of `` writeSheet`, specify the sheet name.Then create an object of a writer and use the `write` method of the writer to write the data to the Excel file.The following is a simple example: String fileName = "path/to/save/excel/file.xlsx"; EasyExcel.write(fileName, YourDataModel.class).sheet("Sheet1") .doWrite(dataList); Among them, `Yourdatamodel` is a custom data model class, and` datalist` is to write the data list of the Excel file. In summary, this article introduces the use guide of the EasyExcel framework in the Java library.Through simple API interfaces, we can easily implement the reading and writing operation of the excel file.I hope this article will help you when you use the EasyExcel framework!