JAVA创建写入CSV文件

// writeCsvDate("/home/app/my_test.csv");
public void writeCsvDate(String file) {
    // 文件路径
    File writeFile = new File(file);
    try {
        // 使用默认大小输出缓冲区的缓冲字符输出流
        BufferedWriter writeText = new BufferedWriter(new FileWriter(writeFile));
        writeText.write("localDate,indexValue,conclusion");
        // 将文档的下一行数据赋值给lineData，并判断是否为空，若不为空则输出
        for (int i = 0; i < 10; i++) {
            writeText.newLine();    //换行
            // 调用write的方法将字符串写到流中
            writeText.write("2019-05-1" + i + "," + new BigDecimal(String.valueOf(100 + i)) + "," + "apple" + i);
        }
        // 刷新缓存
        writeText.flush();
        // 关闭缓冲区
        writeText.close();
    } catch (FileNotFoundException e) {
        System.out.println("没有找到指定文件");
    } catch (IOException e) {
        System.out.println("文件读写出错");
    }
}