[英]Creating a new file, then writing to it
I am trying to create a new CSV file then write to it, the code gets to as far as the BufferedWriter
then I get a java.io.FileNotFoundException: /mnt/sdcard/SMSMonitor/04-07-2011/Backup_20:43:00.csv (Invalid argument)
exception. I am trying to create a new CSV file then write to it, the code gets to as far as the
BufferedWriter
then I get a java.io.FileNotFoundException: /mnt/sdcard/SMSMonitor/04-07-2011/Backup_20:43:00.csv (Invalid argument)
异常。 Does anyone know why this is happening?有谁知道为什么会这样?
public void generateCSVFile(ArrayList<String> list)
{
File CreateDirectory = new File(Environment.getExternalStorageDirectory()
+ "/SMSMonitor/" + subFolderName);
CreateDirectory.mkdirs();
try
{
File file = new File(CreateDirectory +"/"+ fileName);
BufferedWriter writer = new BufferedWriter(new FileWriter(file));
writer.write("ID, Date, Address, Body");
writer.newLine();
for (String s : list)
{
writer.write(s);
writer.newLine();
}
writer.newLine();
writer.flush();
writer.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
Try create the file without any colons, as the file system used has it reserved.尝试创建不带任何冒号的文件,因为使用的文件系统已保留它。
See http://en.wikipedia.org/wiki/File_Allocation_Table#Directory_table见http://en.wikipedia.org/wiki/File_Allocation_Table#Directory_table
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