How to use the CLJ Excel framework in the Java library

How to use the CLJ Excel framework in the Java library CLJ Excel is a powerful Java class library that helps developers handle Excel files in Java applications.This article will introduce how to use the CLJ EXCEL framework for the read and write operation of the Excel file. Step 1: Add dependencies First of all, we need to add the dependencies of the CLJ Excel framework to the construction file of the project.You can use Maven or Gradle for dependency management.Add the following dependencies to the pom.xml file: <dependency> <groupId>com.glenjendary</groupId> <artifactId>clj-excel</artifactId> <version>1.2.3</version> </dependency> Step 2: Create an excel file Next, we will use the CLJ Excel framework to create a new Excel file.First, introduce related packages: import cljexcel.*; Then, we can use the following code to create a new Excel file: Workbook workbook = new Workbook(); Sheet sheet = workbook.createSheet("Sheet1"); Row row = sheet.createRow(0); Cell cell = row.createCell(0); cell.setCellValue("Hello World"); // Save the excel file workbook.save("example.xlsx"); In the above code, we first created a Workbook object, and then created a worksheet called "Sheet1" in it.We then created the first and first cells and set its value to "Hello World".Finally, we use the `Workbook.save () method to save the excel file to the local. Step 3: Read the excel file Through the CLJ Excel framework, we can also read existing Excel files.The following is a sample code for reading Excel files: Workbook workbook = new Workbook(); workbook.open("example.xlsx"); Sheet sheet = workbook.getSheet("Sheet1"); Row row = sheet.getRow(0); Cell cell = row.getCell(0); String cellValue = cell.getStringCellValue(); System.out.println(cellValue); In the above code, we first created a workbook object and used the `Workbook.open ()" method to open the previous Excel file.Then, we obtained the worksheet called "Sheet1" from the workbook, and obtained the values of the first line and the first cell.Finally, we print the value of the cell. Summarize Through the CLJ Excel framework, developers can easily handle Excel files in the Java class library.This article introduces how to use the CLJ Excel framework in the Java application for read and write operations of the Excel file, and provide the corresponding code example.By mastering these basic concepts, developers will be able to handle Excel files more efficiently and meet various business needs.