JSAPAR framework detailed API document interpretation

JSAPAR is a Java framework for parsing, generating and operating various text file formats.It provides a powerful and flexible API that allows developers to easily read and write files in different formats, such as CSV, XML, Excel, and custom formats. The following is a detailed API document interpretation of the JSAPAR framework: 1. Create Parser object: To analyze text files, you first need to create a Parser object.You can use the `jsaparFactory.createparser (Configuration) method to create a Parser object.The configuration object specifies the required file format and other analysis options. 2. Configure Parser object: You can use the configuration object to set the various options of Parser, such as field separators, line partitions, whether to include title lines, etc.The configuration object can also specify the file format to be parsed, such as CSV, Excel or custom format. 3. Register processor: When parsing files, you can register a processor to process each line of data.You can use the `Parser.addlinehandler (Linehandler) method to register a processor.The processor is responsible for converting line data to the corresponding Java object and performing specific operations. 4. Analysis file: Use the `Parser.parse (Reader) method to analyze the file.Transmit a Reader object as a parameter, which points to the text file to be parsed.The analysis process will be performed in accordance with the option specified in the configuration object. 5. Get analytical results: After the parsing file, you can obtain the results of the analysis by obtaining the analysis through the method of `Parser.getResult ().The analysis result is usually a collection of line data that contains palement.These data can be processed further, such as stored to databases, output to log files. 6. Create a generator object: To generate text files, you can create a generator object.You can use the `JSAPARFACTORY.CREATEGERATORTOR (Configuration) method to create a generator object.Similarly, the configuration object is used to specify the format and other options of generating files. 7. Configure the generator object: You can use configuration objects to set various options of generator, such as field separation symbols, row partitions, whether to include title lines, etc.The configuration object can also specify the file format to be generated, such as CSV, Excel or custom format. 8. Registration data source: When generating files, you need to provide data sources to write files.You can register the data source with the method of `Generator.SetdataSource (DataSource)` method.The data source can be a collection of data to be generated, or it can be an iterator or other data structure. 9. Generate files: Use the `GENATOR.GENATE (wrtern) method to generate files.Pass a Writer object as a parameter, which points to the target location of the generated file.The generation process will be performed according to the option specified in the configuration object. 10. Configuration conversion strategy: When generating files, you can also use the conversion strategy in the configuration object to define the conversion method of the data.The conversion strategy is used to convert the Java object into a text format, and specify the data type, width and other information of each field. This is the basic API interpretation of the JSAPAR framework.To use this framework, you need to understand how to create Parser and Generator objects and configure their options.Then register the corresponding processor or data source to analyze and generate files.Finally, process the results of the analysis or data generated as needed. The following is an example code that uses the JSAPAR framework to analyze the CSV file: // Create configuration objects CsvConfiguration config = new CsvConfiguration(); config.setFieldSeparator(','); config.setLineSeparator("\r "); config.setContainsHeader(true); // Create a Parser object Parser parser = JsaParFactory.createParser(config); // Register processor parser.addLineHandler(line -> { // Process each line of data String[] fields = line.getContext().getCurrentLineElements(); // Store the data to the database or perform other operations }); try (Reader reader = new FileReader("data.csv")) { // analyse file parser.parse(reader); } // Get the results of the parsing List<Object> parsedData = parser.getResult(); // Process data of parsing // ... I hope this article can help you understand the API and usage of the JSAPAR framework.According to specific needs, you can further learn and explore other functions and advanced configurations of the framework.