Android openCSV,文件出现 - 但不会写入任何内容


public void exportToCSV() throws IOException {
    File pathfile = new File(Environment.getExternalStorageDirectory()
            .getAbsolutePath()
            + File.separator
            + "csvData");
    if (!pathfile.isDirectory()) {
        pathfile.mkdir();
    }
    File file = new File(pathfile,
                File.separator + "csvDataFile.csv");
    if (!file.exists()) {
        try {
            file.createNewFile();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    writer = new CSVWriter(new FileWriter(file));
    new Thread() {
        public void run() {
            if (csvThreadRunning) {
                while (!Thread.currentThread().isInterrupted()) {
                    try {
                        String s1 = String.valueOf(globalData
                                .getLatestGraphData1()) + "pin39"; // array
                                                                    // of
                                                                    // your
                                                                    // values
                        writer.writeNext(s1);
                        s1 = String.valueOf(globalData
                                .getLatestGraphData2()) + "pin40";
                        writer.writeNext(s1);
                        s1 = String.valueOf(globalData
                                .getLatestGraphData3()) + "pin41";
                        writer.writeNext(s1);
                        s1 = String.valueOf(globalData
                                .getLatestGraphData4()) + "pin42";
                        writer.writeNext(s1);
                        s1 = String.valueOf(globalData
                                .getLatestGraphData5()) + "pin43";
                        writer.writeNext(s1);
                        writer.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }.start();
}

Csv文件出现在正确的路径,但没有数据写入它?

问题是我过早关闭了writer;导致CSV文件写入一列然后停止。

解决方案是将writer.close();移出运行循环。

相关内容

  • 没有找到相关文章

最新更新