azazar/csv-simple

Fast CSV parser / writer

csv-simple

csv-simple is a simple CSV reader/writer for Java without any dependencies.

Usage

Add maven repository

<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io</url>
    </repository>
</repositories>

And dependency

<dependency>
    <groupId>com.github.azazar</groupId>
    <artifactId>csv-simple</artifactId>
    <version>1.1.2</version>
</dependency>

Usage Examples

    public static void readExample1() throws IOException {
        // the file with header "field1,field2"
        try (CSVReader r = CSV.RFC4180.createReader(new FileReader("numbers.csv"))) {
            Map<String, String> row;

            while ((row = r.readRow()) != null) {
                System.out.println(row.get("field1") + " : " + row.get("field2"));
            }
        }
    }

    public static void readExample2() throws IOException {
        // the file with header "field1,field2"
        try (CSVReader r = CSV.RFC4180.createReader(new FileReader("numbers.csv"))) {
            r.rowStream(true).forEach(
                row -> System.out.println(row.get("field1") + " : " + row.get("field2"))
            );
        }
    }

    public static void writeExample1() throws IOException {
        try (CSVWriter w = new CSVWriter(new PrintWriter(out))) {
            for (int i = 0; i < 10; i++) {
                w.write("example1", i, "row" + i);
            }
        }
    }

    public static void writeExample2() {
        for (int i = 0; i < 10; i++) {
            out.print(CSV.toCSV(new String[] { "example2", "" + i, "row" + i }));
        }
        out.flush();
    }