![]() Now, let's use Jackson's CsvMapper to read our CSV file into a List of OrderLine objects. When we run this sample code, our example JSON document is converted to the expected CSV file. writeValue(new File("src/main/resources/orderLines.csv"), jsonTree) Then, we create a CsvMapper with our CsvSchema, and finally, we write the jsonTree to our CSV file: CsvMapper csvMapper = new CsvMapper() ![]() Step 4: Click on the Download button to download the CSV data as a file. ![]() Step 3: Select converted CSV data separated as tab, comma or semicolon. Step 2: Click on the JSON to CSV button to convert JSON to CSV online. JsonNode firstObject = jsonTree.elements().next() įirstObject.fieldNames().forEachRemaining(fieldName -> ) ĬsvSchema csvSchema = csvSchemaBuilder.build().withHeader() Step 1: Copy and paste the JSON code or upload your JSON file. To do this, we create a CsvSchema Builder and set the column headers to match the JSON field names: Builder csvSchemaBuilder = CsvSchema.builder() This determines the column headers, types, and sequence of columns in the CSV file. First, we use Jackson's ObjectMapper to read our example JSON document into a tree of JsonNode objects: JsonNode jsonTree = new ObjectMapper().readTree(new File("src/main/resources/orderLines.json"))
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