Use the CLJ Excel framework to implement the reading and writing operation of the Excel file
Use the CLJ Excel framework to implement the reading and writing operation of the Excel file
In Java development, processing Excel files is a common and important task.CLJ Excel is a powerful and easy -to -use open source framework. It provides rich functions to read and write Excel files.This article will introduce how to use the CLJ Excel framework to implement the reading and writing operation of the Excel file.
The CLJ Excel framework provides a simple API to read and write into Excel files.First, we need to import the CLJ Excel library.You can use the following Maven coordinates to add CLJ Excel to rely on the project:
<dependency>
<groupId>com.taogen.excel</groupId>
<artifactId>clj-excel</artifactId>
<version>1.0.0</version>
</dependency>
Now, let's take a look at how to use the CLJ Excel framework to read the excel file.The following code example demonstrates how to read a data in an Excel file:
import com.taogen.excel.util.ExcelReadUtil;
public class ExcelReaderExample {
public static void main(String[] args) {
String filePath = "path/to/excel/file.xlsx";
ExcelReadUtil excelReadUtil = new ExcelReadUtil();
List<List<Object>> data = excelReadUtil.read(filePath);
// Process the data you read
for (List<Object> row : data) {
for (Object cell : row) {
System.out.print(cell + "\t");
}
System.out.println();
}
}
}
In the above example, we first created a `ExcelReadutil` instance, and then read the data in the Excel file by using the` Read` method.Reading operations will return a `List <Object >>`, each of which is a line of data for each `list <object>`, each `Object` represents the value of a cell.
Next, let's take a look at how to use the CLJ Excel framework to write to the Excel file.The following code example demonstrates how to write the data into the Excel file:
import com.taogen.excel.util.ExcelWriteUtil;
public class ExcelWriterExample {
public static void main(String[] args) {
String filePath = "path/to/excel/file.xlsx";
List<List<Object>> data = new ArrayList<>();
// Add data to be written
List<Object> row1 = new ArrayList<>();
row1.add ("name");
row1.add ("age");
data.add(row1);
List<Object> row2 = new ArrayList<>();
row2.add ("Zhang San");
row2.add(25);
data.add(row2);
List<Object> row3 = new ArrayList<>();
row3.add ("Li Si");
row3.add(30);
data.add(row3);
ExcelWriteUtil excelWriteUtil = new ExcelWriteUtil();
excelWriteUtil.write(filePath, data);
}
}
In the above example, we first created a `ExcelWriteutil` instance, and then use the` WRITE` method to write the data into the Excel file.The `write` method accepts a file path and the data to be written. The format of the data is the same as the format returned by the read operation.
Through the above example, we can see that it is very simple to read and write the reading and writing operation of the excel file using the CLJ Excel framework.The CLJ Excel framework provides a convenient API to process the Excel file, allowing developers to easily read and write data in the Excel file.Whether it is processing a large amount of data or simple data operation, CLJ Excel is a powerful and reliable choice.
