Java将CSV文件读入数组但忽略第一行

Question

I have written the following codes, however I will need to skip the first line as it is the field name. My file here is cart.csv. When the code read the first line i will get errors.

cart.csv

Number,Item,Quantity
1,Book,10
2,Fruit,14
3,Toy,2

code

 try {

            br = new BufferedReader(new FileReader(file));
            while ((line = br.readLine()) != null) {

                // use comma as separator
                String[] data = line.split(",");

                String sql = "INSERT INTO DB (Number,Item,Quantity) values (?, ?, ?)";
                pstmt = conn.prepareStatement(sql);
                pstmt.setString(1, data[0]);
                pstmt.setString(2, data[1]);
                pstmt.setString(3, data[2]);
                pstmt.executeUpdate();
                System.out.println("Upload Completed");
    }

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (SQLException ex) {
            Logger.getLogger(POI.class.getName()).log(Level.SEVERE, null, ex);
        }

Answer 1

Add a readLine() before the while loop to skip the first line.

br = new BufferedReader(new FileReader(file));
br.readLine(); //read the first line and throw it away
while ((line = br.readLine()) != null) {

Answer 2

br = new BufferedReader(new FileReader(file));
br.readLine() // Read first line and skip...
            while ((line = br.readLine()) != null) { .......
...

Answer 3

For CSV read use SuperCSV. Awesome library. You can just do something like below to skip header.

listReader = new CsvListReader(new FileReader(CSV_FILENAME), CsvPreference.STANDARD_PREFERENCE);
listReader.getHeader(true); 

http://supercsv.sourceforge.net/examples_reading.html