Question

我编写了以下代码，但是我需要跳过第一行，因为它是字段名称。我的文件是cart.csv。当代码读取第一行时，我将收到错误。

cart.csv

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

代码

 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

在while循环之前添加readLine()以跳过第一行。

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

对于CSV读取，请使用SuperCSV。很棒的图书馆。您可以执行以下操作来跳过标题。

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

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

Java将CSV文件读入数组但忽略第一行

3 个答案: