找不到符号类WorkbookSettings
我正在尝试将SQLite数据导出到Excel文件。 我添加了button点击事件中的导出代码。 我的代码如下：
mBtnExport.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { final String fileName = "Data.xls"; //Saving file in external storage File sdCard = Environment.getExternalStorageDirectory(); File directory = new File(sdCard.getAbsolutePath() + "/ExportToExcel"); //create directory if not exist if (!directory.isDirectory()) { directory.mkdirs(); } //file path File file = new File(directory, fileName); WorkbookSettings wbSettings = new WorkbookSettings(); wbSettings.setLocale(new Locale("en", "EN")); WritableWorkbook workbook; Log.i("Path=================", file.getAbsolutePath()); try { workbook = Workbook.createWorkbook(file, wbSettings); //Excel sheet name. 0 represents first sheet WritableSheet sheet = workbook.createSheet("User Detail", 0); try { sheet.addCell(new Label(0, 0, "")); // column and row sheet.addCell(new Label(1, 0, "Age")); for (int i = 0; i < mData.size(); i++) { //String title = cursor.getString(cursor.getColumnIndex(DatabaseHelper.TODO_SUBJECT)); String title = mData.get(i).getmName(); String age = mData.get(i).getmAge(); sheet.addCell(new Label(0, i + 1, title)); sheet.addCell(new Label(1, i + 1, age)); } //closing cursor } catch (RowsExceededException e) { e.printStackTrace(); } catch (WriteException e) { e.printStackTrace(); } workbook.write(); try { workbook.close(); } catch (WriteException e) { e.printStackTrace(); } } catch (IOException e) { e.printStackTrace(); } Toast.makeText(getActivity(), "Exported", Toast.LENGTH_SHORT).show(); } }); 依赖于build.gradle ：
dependencies { compile 'com.android.support:appcompat-v7:23.0.1' compile fileTree(dir: 'libs', include: ['*.jar']) compile 'jexcelapi:jxl:2.6' compile 'com.madgag:sc-light-jdk15on:1.47.0.3' compile 'com.itextpdf:itextpdf:5.5.7'
}
错误日志 ：
Error:(218, 17) error: cannot find symbol class WorkbookSettings Error:(218, 51) error: cannot find symbol class WorkbookSettings Error:(220, 17) error: cannot find symbol class WritableWorkbook Error:(223, 32) error: cannot find symbol variable Workbook Error:(225, 21) error: cannot find symbol class WritableSheet
这里有什么问题 ？ 有没有图书馆的问题？
我面临同样的问题，并通过添加最新的jexcel jar解决了这个问题。 我从https://sourceforge.net/projects/jexcelapi/下载了最新的zip文件，提取了jxl.jar，在Android Studio中创build了一个lib文件夹，并将jar文件粘贴到lib文件夹中。 最后selectjar，右键单击并select“添加为库”。 重build项目和错误应该得到解决。
一切都很好，我只需要通过右键单击特定的.jar文件将库添加到libs文件夹中包含的所有.jar文件。