Explore the technical details of the "Streaming Excel Reader" framework in the Java library

Title: The technical details of the "Streaming Excel Reader" framework in the Java class library Abstract: This article will explore the technical details of the "Streaming Excel Reader" framework in the Java library.Streaming Excel Reader is a powerful Java class library for efficient reading and analysis of Excel files.Through this framework, you can quickly read large Excel files and process data.This article will introduce the characteristics, usage methods, and some Java code examples of Streaming Excel Reader in detail. text: 1. Streaming Excel Reader Introduction Streaming Excel Reader is a very popular open source project in the Java class library. It provides an efficient way to read and analyze Excel files.Compared with the traditional Excel reading method, Streaming Excel Reader can read Excel files in a flow way to reduce memory occupation and improve processing efficiency. 2. STREAMING EXCEL READER characteristics Streaming Excel Reader has the following important features: 2.1 High performance: Streaming Excel Reader can quickly read large Excel files, and processing time complexity has nothing to do with file size, suitable for processing data of more than millions of lines. 2.2 Low memory occupation: Streaming Excel Reader can read Excel files in a flow way. There is no need to load the entire Excel file to the memory. Therefore, when processing large excel files, it can greatly reduce memory occupation. 2.3 Support multiple Excel formats: Streaming Excel Reader supports reading various common Excel file formats, including XLS and XLSX. 2.4 Simple and easy to use: Streaming Excel Reader provides a simple and intuitive API, making it easy for developers to integrate and use it. 3. How to use Streaming Excel Reader Below is a basic example, showing how to use Streaming Excel Reader to read the excel file: // Introduce Streaming Excel Reader related class import com.monitorjbl.xlsx.StreamingReader; import com.monitorjbl.xlsx.streaming.SheetReader; // Create Streaming Excel Reader instance InputStream is = new FileInputStream("path/to/excel/file.xlsx"); Workbook workbook = StreamingReader.builder().rowCacheSize(100).bufferSize(4096).open(is); // Traversing every line of data in Excel for (SheetReader sheet : workbook){ for (Row row : sheet){ for (Cell cell : row){ // Process data of each cell String cellValue = cell.getStringCellValue(); // ... } } } // Close the excel file input stream workbook.close(); is.close(); In the above example, we first create a streamingReader instance through the method of `streamingReader.builder ()` ``), and specify some cache and buffer parameters.Then, we process the data of each cell by traversing the sheet, row, and cell in Workbook.Finally, you need to manually close the input stream of workbook and excel files. 4 Conclusion Streaming Excel Reader is a very practical Java class library that helps developers to read and analyze Excel files efficiently.Through streaming processing, Streaming Excel Reader not only reduces memory occupation, but also improves processing efficiency. It is particularly suitable for handling large Excel files.Hope this article helps you help the technical details of the Streaming Excel Reader framework.