Convert JSON to CSV in Java

readme.md

Learn how to convert JSON data or files to CSV format using Java: https://blog.aspose.com/2021/08/05/convert-json-to-csv-using-java/

json-to-csv.java

// load JSON data
String jsonInput = "[{'nodeId':1,'reputation':1134},{'nodeId':2,'reputation':547},{'nodeId':3,'reputation':1703},{'nodeId':4,'reputation':-199},{'nodeId':5,'reputation':-306},{'nodeId':6,'reputation':-49},{'nodeId':7,'reputation':1527},{'nodeId':8,'reputation':1223}]";

// create a blank Workbook object
Workbook workbook = new Workbook();

// access default empty worksheet
Worksheet worksheet = workbook.getWorksheets().get(0);

// set JsonLayoutOptions for formatting
JsonLayoutOptions layoutOptions = new JsonLayoutOptions();
layoutOptions.setArrayAsTable(true);

// export JSON data to CSV
JsonUtility.importData(jsonInput, worksheet.getCells(), 0, 0, layoutOptions);

// save CSV file
workbook.save("output.csv", SaveFormat.CSV);