Java 文件 Util

 import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import com.paic.is.dispatch.TMPEntry;
public class FileUtil
{
public static File getFileByRelativePath(String relativePath)
{
String absoluteFilePath = ProjectConfig.getApplicationRootPath() +
File.separator + relativePath;
return new File(absoluteFilePath);
}
public static String getInjectedFEFileContent(String relativeFilePath, String fileContent)
{
String FEString = readFEFileContent(relativeFilePath);
return fileContent + "\n" + FEString;
}

public static String readFEFileContent(String relativeFilePath)
{
String absoluteFilePath = ProjectConfig.getApplicationRootPath() +
File.separator + relativeFilePath;

File FEFile = new File(absoluteFilePath);
StringBuffer sb = new StringBuffer();
if(FEFile.exists() && FEFile.canRead() && !FEFile.isDirectory())
{
FileReader fr = null;
BufferedReader bReader = null;
try
{
fr = new FileReader(FEFile);
bReader = new BufferedReader(fr);
String line = null;
while((line = bReader.readLine()) != null)
{
sb.append("\n" +line);
}
}
catch(FileNotFoundException ex)
{
ExceptionDefaultHandler.handle(ex,
TMPEntry.getCurrentTMPFileName() + ".log");
}
catch(IOException ex)
{
ExceptionDefaultHandler.handle(ex,
TMPEntry.getCurrentTMPFileName() + ".log");
}
finally
{
try
{
if(null != bReader)
{
bReader.close();
}
if(null != fr)
{
fr.close();
}
}
catch(Exception exception)
{
ExceptionDefaultHandler.handle(exception,
TMPEntry.getCurrentTMPFileName() + ".log");
}
}
}
else
{
ThreadLog.MakeLog("We can not find the file : " +relativeFilePath,
TMPEntry.getCurrent