The comparison of the EASYEXCEL framework with other Excel processing tools

The comparison of the EASYEXCEL framework with other Excel processing tools Introduction: In Java development, processing Excel files is a common task.There are many available libraries and tools to achieve this goal. Among them, the EasyExcel framework is a very popular choice.This article will compare the EasyExcel framework and other commonly used Excel processing tools to explore their advantages and disadvantages. 1. EasyExcel framework introduction EasyExcel is a Java -based open source framework and was launched by the Alibaba Development Team.It provides a simple and powerful API for reading, writing and processing Excel files.EasyExcel optimizes memory use, can handle large Excel files, and provide rich functions and easy -to -use interfaces. 2. Functional comparison 1. Read and write to Excel: The EasyExcel framework provides smooth APIs to read and write Excel files.It supports reading different versions of Excel files (such as .xls and .xlsx), and provided simple methods to operate different worksheets, rows and columns.Compared with other tools, EasyExcel has higher performance and lower memory occupation, especially when dealing with large excel files. Example code: // Read the excel file List<List<String>> excelData = EasyExcel.read(fileName).sheet(sheetName).doReadSync(); // Write into the excel file List<List<Object>> data = new ArrayList<>(); // Add data to DATA EasyExcel.write(fileName).sheet(sheetName).doWrite(data); 2. Data conversion and mapping: The EasyExcel framework provides flexible data conversion and mapping functions.It supports conversion between the data in Excel and the Java object, and can customize the mapping rules.In addition, EasyExcel also supports data verification and format conversion when reading and writing, which can easily handle the formats, numbers and other formats. Example code: // Custom data converter ConverterRegistry converterRegistry = EasyExcel.getConverterRegistry(); converterRegistry.putConverter(String.class, new CustomStringConverter()); // Custom data mapping rules TableStyle tableStyle = new TableStyle(); tableStyle.setTableHeadBackGroundColor(IndexedColors.GREY_25_PERCENT.getIndex()); tableStyle.setTableHeadFontColor(IndexedColors.BLACK.getIndex()); // Set table style WriteSheet writeSheet = EasyExcel.writerSheet(sheetName).tableStyle(tableStyle).build(); 3. Multi -threading processing: EasyExcel framework supports multi -threaded processing Excel files to improve processing efficiency.It can split a large excel file into multiple small files and handle it at the same time in multiple threads.This is very useful when you need to read, write, or process multiple excel files at the same time. Example code: // Multi -threaded reading excel file ReadSheet readSheet = EasyExcel.readSheet(sheetName).build(); EasyExcel.read(fileName).registerReadListener(new CustomReadListener()).sheet().doRead(); // Multi -threaded writing Excel file WriteSheet writeSheet = EasyExcel.writerSheet(sheetName).build(); EasyExcel.write(fileName).registerWriteHandler(new CustomWriteHandler()).sheet().doWrite(); Third, performance contrast 1. Memory occupation: The EasyExcel framework adopts the method of streaming reading and writing, which can effectively reduce memory occupation.In contrast, the traditional POI library may cause memory overflow when processing large excel files.Therefore, EasyExcel is applicable to the scene of processing a large amount of data or large Excel files. 2. Reading and writing performance: The EasyExcel framework has high performance when reading and writing with the excel file.It uses an event -based model to trigger the corresponding events during reading and writing, reducing memory consumption.Relatively speaking, other libraries may need to load the entire Excel file to the memory first, and then process it, so it is easily limited by memory. Fourth, summary The EasyExcel framework is a powerful, efficient and easy -to -use Java Excel processing tool.Compared with other commonly used tools, EasyExcel performed well in memory occupation, reading and writing performance and function.It provides rich API and flexible data conversion and mapping functions, suitable for handling Excel files of various sizes.Therefore, we recommend that developers consider using the EasyExcel framework when dealing with Excel. The above is the comparison of the EasyExcel framework with other Excel processing tools. I hope it can help everyone. Attachment: EasyExcel official github address: https://github.com/alibaba/easyExcel