How to use the Streaming Excel Reader framework in the Java library to analyze the Excel file

Use the Streaming Excel Reader framework to analyze the Excel file is an efficient and reliable way.This framework can help us read large Excel files in the Java library without the problem of memory overflow.Below we will introduce how to use the Streaming Excel Reader framework to parse the Excel file and provide the corresponding Java code example. First, we need to introduce the Streaming Excel Reader library in our project.Suppose we use Maven to build our project, we can add the following dependencies to the POM.XML file: <dependency> <groupId>com.monitorjbl</groupId> <artifactId>xlsx-streamer</artifactId> <version>2.1.0</version> </dependency> Once we prepare the dependencies, we can start writing code.Below is a simple example, demonstrating how to use the Streaming Excel Reader framework to analyze the Excel file. import com.monitorjbl.xlsx.StreamingReader; import com.monitorjbl.xlsx.impl.StreamingRow; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; public class ExcelParser { public static void main(String[] args) throws IOException { // Read the excel file InputStream is = new FileInputStream("path/to/excel/file.xlsx"); // Create StreamingReader objects try (StreamingReader reader = StreamingReader.builder() .Rowcachesize (100) // Set line cache size .buffersize (4096) // Set the buffer size .open(is)) { // Traversing all the lines in Excel files for (StreamingRow row : reader) { // Read all the cells in each line for (int i = 0; i < row.getLastCellNum(); i++) { // Print the value of the cell System.out.print(row.getCell(i) + "\t"); } System.out.println(); } } } } In the above code example, we created a StreamingReader object, and set the row cache size and the size of the buffer through the BUILDER mode.Then, we use this Reader object to traverse each line in Excel files, read all cells in each line with a circular, and print the value of the cells. It should be noted that when using the Streaming Excel Reader framework, we need to ensure that the input stream of Excel files (ie, FileInputStream) can be released correctly after the code is running.The above example code uses Try-With-Resources statement to ensure that the input stream is closed correctly after use. By using the Streaming Excel Reader framework, we can easily analyze the large Excel file without being affected by memory restrictions.This is very useful for applications that need to process large excel files.Using the above example code, we can quickly start analyzing our Excel file.