用java更改csv分隔符

Question

当我使用AT_SEPARATOR =＆＃34;，＆＃34;时，代码完全正常。但出于某种原因，我想改变我的AT_SEPARATOR =＆＃34; @@@＆＃34;而不是＆＃34;，＆＃34;。因此，当我向csv文件添加数据时，它会在找到＆＃34; @@@＆＃34;时将数据插入新单元格。但我不知道如何更改csv文件的格式，以便其默认分隔符从＆＃34;，＆＃34;到＆＃34; @@@＆＃34;。我在哪里更改或添加一些内容来更改csv默认分隔符？ 这是我在不同类中写入csvfile的方法。 在这里，AT_SEPARATOR =＆＃34; @@@＆＃34 ;;

CSVFileWriter csvFileMethod = new CSVFileWriter();
csvFileMethod.createCSV(fileName);
while(rs.next()) {  
    csvFileMethod.saveIt(startTime,
            rs.getString("OWNER") + AT_SEPARATOR + 
            rs.getString("NAME") + AT_SEPARATOR +
            rs.getString("TYPE") + AT_SEPARATOR +
            rs.getInt("LINE") + AT_SEPARATOR +
            rs.getString("TEXT") + AT_SEPARATOR +
            parentSYSTEM_ID + AT_SEPARATOR+
            parentPlatform); 
} 
csvFileMethod.closeCSV();

这是我的CSV编写器类。

public class CSVFileWriter {

    public final String NEW_LINE_SEPARATOR;
    public final String AT_SEPARATOR;
    public String Owner;
    public String Table_Name;
    public String systemID;
    public String platform; 
    FileWriter fileWriter;

    public CSVFileWriter(){
        NEW_LINE_SEPARATOR = "\n";
        fileWriter = null;
        AT_SEPARATOR="@@@"; 
    }

    public void createCSV(String fileName){
        try {
            fileWriter = new FileWriter(fileName);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void saveIt(String startTime, String data){
        try {
            fileWriter.append(data);
            fileWriter.append(AT_SEPARATOR);
            fileWriter.append(startTime); 
            fileWriter.append(NEW_LINE_SEPARATOR);          
        } catch (Exception e) {
            System.out.println("Error in CsvFileWriter !!!");
            e.printStackTrace();
        }
    }

    public void saveIt(String startTime, String data, int numberOfRows){
        try {
            fileWriter.append(data);
            fileWriter.append(AT_SEPARATOR);
            fileWriter.append(startTime); 
            fileWriter.append(AT_SEPARATOR);
            fileWriter.append(numberOfRows+"");
            fileWriter.append(NEW_LINE_SEPARATOR);          
        } catch (Exception e) {
            System.out.println("Error in CsvFileWriter !!!");
            e.printStackTrace();
        }
    }

    public void closeCSV(){
        try {
            fileWriter.flush();
            fileWriter.close();
        } catch (IOException e) {
            System.out.println("Error while flushing/closing fileWriter !!!");
            e.printStackTrace();
        }
    }
}