JSAPAR frameworks in the JSAPAR framework (IntRoduction to Common Utility Classes in JSAPAR FRAMEWORK)

The JSAPAR framework is a powerful Java file analysis and generating tool. It provides many commonly used tool classes to simplify the operation of file reading and writing and format conversion.This article will introduce the commonly used tools in the JSAPAR framework, as well as related programming code and configuration. 1. `JSAPARREADER`: This tool class is used to read data from files or other input sources, and analyzes it as a Java object.Using `jsaparreader` can easily handle various file formats, such as CSV, Excel, XML, etc.The following is an example code that uses the `jsaparreader` to read the CSV file: try { File inputFile = new File("input.csv"); Reader reader = new FileReader(inputFile); // Configuration parser CsvSchema schema = new CsvSchema.Builder() .withHeader() .build(); CsvReader csvReader = new CsvReader(reader, schema); // Read the data line Record record; while ((record = csvReader.nextRecord()) != null) { // Process each line of data String value = record.getString("columnName"); // ... } csvReader.close(); } catch (IOException e) { e.printStackTrace(); } 2. `JSAPARWRITER`: This tool class is used to write the Java object into files or other output sources.Using the `jsaparwriter` can easily convert data to various file formats.Below is an example code that uses the `jsaparwriter` to write the data into the CSV file: try { File outputFile = new File("output.csv"); Writer writer = new FileWriter(outputFile); // Configuration Writer CsvSchema schema = new CsvSchema.Builder() .withDefaultHeader() .build(); CsvWriter csvWriter = new CsvWriter(writer, schema); // Write into the data line Record record = new Record(); record.setValue("columnName", "value"); // ... csvWriter.write(record); csvWriter.close(); } catch (IOException e) { e.printStackTrace(); } 3. `TypedConverter`: This tool class is used to convert Java objects into other data types, such as converting the string to integer, date conversion, etc.Using the `TypedConVerter` can easily handle the conversion and formatting of the data type.Below is a sample code that uses the `TypedConverter` to convert the string into an integer: TypedConverter<Integer> converter = TypedConverter.of(Integer.class); String strValue = "123"; Integer intValue = converter.parse(strValue); System.out.println (Intvalue); // Output: 123 int value = 456; String stringValue = converter.format(value); System.out.println (stringvalue); // Output: "456" The above introduces the tools commonly used in the JSAPAR framework, including `JSAPARREADER` used to read file data, `jsaparwriter` is used to write file data, and` TypedConverter` is used for data type conversion.By using these tools, it can simplify the operation and generate operation of files and improve development efficiency.It should be noted that the specific configuration and usage method may vary from the application scenario, and it is necessary to adjust and expand according to the actual situation.