jsp如何在指定的地方创建一个.txt的文件，并向其中写内容和读内容？

[simonqsm]

[simonqsm]

没人知道吗？

[gzwrj]

public void writeFile(String str, String filename) throws Exception
{
// Open a writer to the file, then write the string.
BufferedWriter bwriter;//writer to the file
String fullfilepath;//path for the output file
try
{
bwriter = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(filename)));
bwriter.write(str);
bwriter.flush();
bwriter.close();
}//try
catch(Exception e)
{
throw e;
}//catch
}//writeFile


public String readFile(String filename) throws Exception
{
//Read the file into a string buffer, then return as a string.
StringBuffer buf;//the intermediary, mutable buffer
BufferedReader breader;//reader for the template files
try
{
breader = new BufferedReader(new FileReader(filename));//header
buf = new StringBuffer();
while(breader.ready())
buf.append((char)breader.read());
breader.close();
}//try
catch(Exception e)
{
throw e;
}//catch
return buf.toString();
}//readFile