JSP中文件常用操作方法

件及目录名字
* @param filePath
*/
public void readFolderByFile(String filePath)
{
File file = new File(filePath);
File tempFile = file.listFiles();
for(int i = 0;i<tempFile.length;i++) [Page]
{
if(tempFile[i].isFile())
{
System.out.println(\"File : \"+tempFile[i].getName());
}
if(tempFile[i].isDirectory())
{
System.out.println(\"Directory : \"+tempFile[i].getName());
}
}
}
/**
* 检查文件中是否为一个空
* @param filePath
* @param fileName
* @return 为空返回true
* @throws IOException
*/
public boolean fileIsNull(String filePath,String fileName) throws IOException
{
boolean result = false;
FileReader fr = new FileReader(filePath+fileName);
if(fr.read() == -1)
{
result = true;
System.out.println(fileName+\" 文件中没有数据!\");
}
else
{
System.out.println(fileName+\" 文件中有数据!\");
}
fr.close();
return result;
}
/**
* 读取文件中的所有内容
* @param filePath
* @param fileName
* @throws IOException
*/
public void readAllFile(String filePath,String fileName) throws IOException
{
FileReader fr = new FileReader(filePath+fileName);
int count = fr.read();
while(count != -1)
{
System.out.print((char)count);
count = fr.read();
if(count == 13)
{
fr.skip(1);
}
}
fr.close();
}
/**
* 一行一行的读取文件中的数据
* @param filePath
* @param fileName
* @throws IOException
*/
public void readLineFile(String filePath,String fileName) throws IOException
{
FileReader fr = new FileReader(filePath+fileName);
BufferedReader br = new BufferedReader(fr);
String line = br.readLine();
while(line != null)
{
System.out.println(line);
line = br.readLine();
}
br.close();
fr.close();
}