<dependency>  <groupId>net.sourceforge.javacsv</groupId>  <artifactId>javacsv</artifactId>  <version>2.0</version></dependency>

public static void writeCSV() {  // 定義一個CSV路徑  String csvFilePath = "D://StemQ.csv";  try {    // 創建CSV寫對象 例如:CsvWriter(文件路徑，分隔符，編碼格式);    CsvWriter csvWriter = new CsvWriter(csvFilePath, ',', Charset.forName("UTF-8"));    // 寫表頭    String[] csvHeaders = { "編號", "姓名", "年齡" };    csvWriter.writeRecord(csvHeaders);    // 寫內容    for (int i = 0; i < 20; i++) {      String[] csvContent = { i + "000000", "StemQ", "1" + i };      csvWriter.writeRecord(csvContent);    }    csvWriter.close();    System.out.println("--------CSV文件已經寫入--------");  } catch (IOException e) {    e.printStackTrace();  }}

public static void readCSV() {  try {    // 用來保存數據    ArrayList<String[]> csvFileList = new ArrayList<String[]>();    // 定義一個CSV路徑    String csvFilePath = "D://StemQ.csv";    // 創建CSV讀對象 例如:CsvReader(文件路徑，分隔符，編碼格式);    CsvReader reader = new CsvReader(csvFilePath, ',', Charset.forName("UTF-8"));    // 跳過表頭 如果需要表頭的話，這句可以忽略    reader.readHeaders();    // 逐行讀入除表頭的數據    while (reader.readRecord()) {      System.out.println(reader.getRawRecord());       csvFileList.add(reader.getValues());     }    reader.close();        // 遍歷讀取的CSV文件    for (int row = 0; row < csvFileList.size(); row++) {      // 取得第row行第0列的數據      String cell = csvFileList.get(row)[0];      System.out.println("------------>"+cell);    }  } catch (IOException e) {    e.printStackTrace();  }}