How to use

createNewFile

method

in

org.nutz.lang.Files

public File returnFile(long fId, String suffix) {
  File f = Pools.getFileById(home, fId, suffix);
  if (!f.exists())
    try {
      Files.createNewFile(f);
    }
    catch (IOException e) {
      throw Lang.wrapThrow(e);
    }
  return f;
}

public synchronized File returnFile(long fId, String suffix) {
  File re = _F(fId, suffix);
  if (!re.exists())
    try {
      Files.createNewFile(re);
    }
    catch (IOException e) {
      throw Lang.wrapThrow(e);
    }
  return re;
}

public synchronized File createFile(String suffix) {
  File f = _F(current++, suffix);
  if (current > max)
    current = 0;
  if (!f.exists())
    try {
      Files.createNewFile(f);
    }
    catch (IOException e) {
      throw Lang.wrapThrow(e);
    }
  return f;
}

public File createFile(String suffix) {
  if (size > 0 && cursor >= size-1)
    cursor = -1;
  long id = ++cursor;
  File re = Pools.getFileById(home, id, suffix);
  if (!re.exists())
    try {
      Files.createNewFile(re);
    }
    catch (IOException e) {
      throw Lang.wrapThrow(e);
    }
  return re;
}

/**
 * 如果文件对象不存在，则创建它
 * 
 * @param f
 *            文件对象
 * @return 传入的文件对象，以便为调用者省略一行代码
 */
public static File createFileIfNoExists(File f) {
  if (null == f)
    return f;
  if (!f.exists())
    try {
      Files.createNewFile(f);
    }
    catch (IOException e) {
      throw Lang.wrapThrow(e);
    }
  if (!f.isFile())
    throw Lang.makeThrow("'%s' should be a file!", f);
  return f;
}

/**
 * 试图生成一个文件对象，如果文件不存在则创建它。 如果给出的 PATH 是相对路径 则会在 CLASSPATH
 * 中寻找，如果未找到，则会在用户主目录中创建这个文件
 * 
 * @param path
 *            文件路径，可以以 ~ 开头，也可以是 CLASSPATH 下面的路径
 * @return 文件对象
 * @throws IOException
 *             创建失败
 */
public static File createFileIfNoExists(String path) throws IOException {
  String thePath = Disks.absolute(path);
  if (null == thePath)
    thePath = Disks.normalize(path);
  File f = new File(thePath);
  if (!f.exists())
    Files.createNewFile(f);
  if (!f.isFile())
    throw Lang.makeThrow("'%s' should be a file!", path);
  return f;
}

  return false;
if (!target.exists())
  if (!createNewFile(target))
    return false;

Files.createNewFile(f);

Files.createNewFile(f);

public File returnFile(long fId, String suffix) {
  File f = Pools.getFileById(home, fId, suffix);
  if (!f.exists())
    try {
      Files.createNewFile(f);
    }
    catch (IOException e) {
      throw Lang.wrapThrow(e);
    }
  return f;
}

public synchronized File returnFile(long fId, String suffix) {
  File re = _F(fId, suffix);
  if (!re.exists())
    try {
      Files.createNewFile(re);
    }
    catch (IOException e) {
      throw Lang.wrapThrow(e);
    }
  return re;
}

public synchronized File createFile(String suffix) {
  File f = _F(current++, suffix);
  if (current > max)
    current = 0;
  if (!f.exists())
    try {
      Files.createNewFile(f);
    }
    catch (IOException e) {
      throw Lang.wrapThrow(e);
    }
  return f;
}

public File createFile(String suffix) {
  if (size > 0 && cursor >= size-1)
    cursor = -1;
  long id = ++cursor;
  File re = Pools.getFileById(home, id, suffix);
  if (!re.exists())
    try {
      Files.createNewFile(re);
    }
    catch (IOException e) {
      throw Lang.wrapThrow(e);
    }
  return re;
}

/**
 * 如果文件对象不存在，则创建它
 * 
 * @param f
 *            文件对象
 * @return 传入的文件对象，以便为调用者省略一行代码
 */
public static File createFileIfNoExists(File f) {
  if (null == f)
    return f;
  if (!f.exists())
    try {
      Files.createNewFile(f);
    }
    catch (IOException e) {
      throw Lang.wrapThrow(e);
    }
  if (!f.isFile())
    throw Lang.makeThrow("'%s' should be a file!", f);
  return f;
}

/**
 * 试图生成一个文件对象，如果文件不存在则创建它。 如果给出的 PATH 是相对路径 则会在 CLASSPATH
 * 中寻找，如果未找到，则会在用户主目录中创建这个文件
 * 
 * @param path
 *            文件路径，可以以 ~ 开头，也可以是 CLASSPATH 下面的路径
 * @return 文件对象
 * @throws IOException
 *             创建失败
 */
public static File createFileIfNoExists(String path) throws IOException {
  String thePath = Disks.absolute(path);
  if (null == thePath)
    thePath = Disks.normalize(path);
  File f = new File(thePath);
  if (!f.exists())
    Files.createNewFile(f);
  if (!f.isFile())
    throw Lang.makeThrow("'%s' should be a file!", path);
  return f;
}

  return false;
if (!target.exists())
  if (!createNewFile(target))
    return false;

Files.createNewFile(f);

Files.createNewFile(f);