com.xiongyingqi.util.FileHelper Maven / Gradle / Ivy
/**
* spark_src
*/
package com.xiongyingqi.util;
import org.apache.log4j.Logger;
import org.apache.tika.exception.TikaException;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.AutoDetectParser;
import org.apache.tika.parser.Parser;
import org.apache.tika.sax.BodyContentHandler;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
/**
* @author XiongYingqi
* @version 2013-6-24 下午10:47:33
*/
public class FileHelper {
public static final Logger LOGGER = Logger.getLogger(FileHelper.class);
public static final long KB = 1024;
public static final long MB = 1024 * KB;
public static final long GB = 1024 * MB;
public static final long TB = 1024 * GB;
public static final long PB = 1024 * TB;
// public static final long EB = 1024 * PB;
// public static final long ZB = 1024 * EB;
// public static final long YB = 1024 * ZB;
// public static final long BB = 1024 * YB;
// public static final long NB = 1024 * BB;
// public static final long DB = 1024 * NB;
public static boolean checkFileSizeLessThen(File file, long size) {
try {
fileNotFullAndExists(file);
} catch (Exception e) {
return false;
}
return file.length() <= size;
}
public static File appendStringToFile(File file, String string) {
FileWriter fileWriter = null;
try {
fileWriter = new FileWriter(file, true);
fileWriter.append(string);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
fileWriter.flush();
} catch (IOException e) {
e.printStackTrace();
}
try {
fileWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return file;
}
public static File appendBytesToFile(File file, byte[] bts) {
OutputStream outputStream = null;
try {
outputStream = new BufferedOutputStream(new FileOutputStream(file, true));
outputStream.write(bts);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
outputStream.flush();
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return file;
}
/**
* 获取文件类型
* 2013-9-2 下午9:08:51
*
* @param data
* @return
*/
public static String getMimeType(File data) {
if (!data.exists()) {
return null;
}
ContentHandler contenthandler = new BodyContentHandler();
Metadata metadata = new Metadata();
metadata.set(Metadata.RESOURCE_NAME_KEY, data.getName());
Parser parser = new AutoDetectParser();
try {
parser.parse(new FileInputStream(data), contenthandler, metadata, null);
} catch (FileNotFoundException e) {
LOGGER.error(e);
} catch (IOException e) {
LOGGER.error(e);
} catch (SAXException e) {
LOGGER.error(e);
} catch (TikaException e) {
LOGGER.error(e);
}
// System.out.println("Mime: " + metadata.get(Metadata.CONTENT_TYPE));
// System.out.println("Mime str: " + metadata.toString());
return metadata.get(Metadata.CONTENT_TYPE);
}
/**
* 根据后缀名从文件夹获取文件
* 2013-9-6 下午3:15:56
*
* @param folder
* @param suffix
* @return
*/
public static File[] listFilesBySuffix(File folder, final String suffix) {
File[] files = folder.listFiles(new FilenameFilter() {
@Override
public boolean accept(File paramFile, String paramString) {
String newSuffix = suffix;
if (!newSuffix.startsWith(".")) {
newSuffix = "." + newSuffix;
}
if (paramString.endsWith(newSuffix)) {
return true;
}
return false;
}
});
return files;
}
public static File readBufferImage(BufferedImage bufferedImage) {
File file = null;
FileOutputStream outputStream = null;
try {
file = File.createTempFile(System.currentTimeMillis() + StringUtil.randomString(8),
"gif");
outputStream = new FileOutputStream(file);
ImageIO.write(bufferedImage, "gif", outputStream);
} catch (IOException e) {
LOGGER.error(e);
} finally {
if (outputStream != null) {
try {
outputStream.flush();
outputStream.close();
} catch (IOException e) {
LOGGER.error(e);
}
}
}
return file;
}
/**
* 从url地址读取文件信息并写入到临时文件
* 2013-9-2 下午2:57:15
*
* @param urlStr
* @return
* @throws java.io.IOException
*/
public static File readURL(String urlStr) throws IOException {
URL url = new URL(urlStr);
// System.out.println(" ----------------- url ----------------- ");
// System.out.println(urlStr);
// System.out.println(url.getPath());
// System.out.println(url.getHost());
// System.out.println(" ---------------------------------- ");
InputStream inputStream = null;
if (url.getHost().trim().equals("")) {
// inputStream = new FileInputStream(url.getFile());
File file = new File(url.getFile());
return file;
} else {
inputStream = url.openStream();
}
return readInputStream(inputStream);
}
public static String readInputStreamToString(InputStream inputStream, Charset charset) {
byte[] bts = null;
try {
bts = readInputStreamToBytes(inputStream);
if (bts == null) {
return null;
}
} catch (Exception e) {
e.printStackTrace();
}
String content = new String(bts, charset);
return content;
// String rs = null;
// try {
// Reader reader = new InputStreamReader(inputStream, charset);
// BufferedReader bufferedReader = new BufferedReader(reader);
// StringBuilder builder = new StringBuilder();
// String line = null;
// while ((line = bufferedReader.readLine()) != null) {
// builder.append(line);
// }
// rs = builder.toString();
//
//// ByteBuffer byteBuffer = ByteBuffer.allocate(1024 * 1024 * 1024);
//// int length = -1;
//// int bufferSize = 128;
//// byte[] buffer = new byte[bufferSize];
//// while ((length = inputStream.read(buffer)) != -1) {
//// if (length != bufferSize) {
//// System.arraycopy(buffer, 0, buffer, 0, length);
//// }
//// EntityHelper.print(new String(buffer));
//// byteBuffer.put(buffer);
//// }
//// rs = new String(byteBuffer.array(), encoding);
// } catch (IOException e) {
// e.printStackTrace();
// } finally {
// // try {
// // inputStream.close();
// // } catch (IOException e1) {
// // e1.printStackTrace();
// // }
// try {
// inputStream.close();
// } catch (IOException e1) {
// e1.printStackTrace();
// }
// }
// return rs;
}
public static String readInputStreamToString(InputStream inputStream, String encoding) {
return readInputStreamToString(inputStream, Charset.forName(encoding));
}
public static InputStream openStream(File file) {
Assert.isTrue(file.exists(), "文件：" + file + "不存在！");
InputStream inputStream = null;
try {
inputStream = new FileInputStream(file);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
return inputStream;
}
public static Reader openReader(File file) {
Assert.isTrue(file.exists(), "文件：" + file + "不存在！");
Reader reader = null;
try {
reader = new FileReader(file);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
return reader;
}
public static BufferedReader openBufferedReader(File file) {
BufferedReader bufferedReader = new BufferedReader(openReader(file));
return bufferedReader;
}
public static String readInputStreamToString(InputStream inputStream) {
return readInputStreamToString(inputStream, "UTF-8");
}
// public static String readInputStreamToString(InputStream inputStream, String encoding) {
// String rs = null;
// try {
// ByteBuffer byteBuffer = ByteBuffer.allocate(1024 * 1024 * 1024);
// int length = -1;
// int bufferSize = 128;
// byte[] buffer = new byte[bufferSize];
// while ((length = inputStream.read(buffer)) != -1) {
// if (length != bufferSize) {
// System.arraycopy(buffer, 0, buffer, 0, length);
// }
// byteBuffer.put(buffer);
// }
// rs = new String(byteBuffer.array(), encoding);
// } catch (IOException e) {
// LOGGER.error(e);
// } finally {
// // try {
// // inputStream.close();
// // } catch (IOException e1) {
// // e1.printStackTrace();
// // }
// try {
// inputStream.close();
// } catch (IOException e1) {
// e1.printStackTrace();
// }
// }
// return rs;
// }
/**
* 从流读取文件内容
* 2013-9-2 下午2:52:39
*
* @param inputStream
* @return
*/
public static File readInputStream(InputStream inputStream) {
String filePath = System.getProperty("java.io.tmpdir", "tmp/");
filePath += System.currentTimeMillis() + StringUtil.randomString(8) + ".tmp";
return readInputStream(inputStream, filePath);
}
/**
* 将文件转换为URL地址
* 2013-9-2 下午10:07:14
*
* @param file
* @return
*/
public static URL toURL(File file) {
if (file == null || !file.exists()) {
return null;
}
URI uri = file.toURI();
URL url = null;
try {
url = uri.toURL();
} catch (MalformedURLException e) {
LOGGER.error(e);
}
return url;
}
/**
* 将流读入到文件内
* 2013-9-2 下午10:04:17
*
* @param inputStream
* @param file
* @return
*/
public static File readInputStream(InputStream inputStream, File file) {
try {
validateFile(file);
} catch (Exception e2) {
e2.printStackTrace();
}
try {
FileOutputStream outputStream = new FileOutputStream(file);
int length = -1;
try {
int bufferSize = 128;
byte[] buffer = new byte[bufferSize];
while ((length = inputStream.read(buffer)) != -1) {
if (length != bufferSize) {
System.arraycopy(buffer, 0, buffer, 0, length);
}
outputStream.write(buffer);
}
} catch (IOException e) {
LOGGER.error(e);
} finally {
// try {
// inputStream.close();
// } catch (IOException e1) {
// e1.printStackTrace();
// }
try {
inputStream.close();
} catch (IOException e1) {
e1.printStackTrace();
}
try {
outputStream.flush();
} catch (IOException e) {
LOGGER.error(e);
}
try {
outputStream.close();
} catch (IOException e) {
LOGGER.error(e);
}
}
} catch (FileNotFoundException e1) {
e1.printStackTrace();
return null;
}
return file;
}
public static File readInputStream(InputStream inputStream, String path) {
File file = new File(path);
return readInputStream(inputStream, file);
}
/**
* 读取指定路径的文件内容（以String的形式）
* 2013-8-30 下午5:28:25
*
* @param fileName
* @return
*/
public static String readFileToString(String fileName) {
return readFileToString(new File(fileName));
}
/**
* 读取指定文件的文件内容（以String的形式）
* 2013-8-30 下午5:26:55
*
* @param file
* @return
*/
public static String readFileToString(File file) {
byte[] bts = null;
try {
bts = readFileToBytes(file);
} catch (Exception e) {
e.printStackTrace();
}
String content = null;
try {
content = new String(bts, getEncode(file));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return content;
}
/**
* 获取文本文档的编码
*
2013年12月5日 下午5:27:07
*
* @param file
* @return
*/
// public static String getEncode(File file) {
// InputStream inputStream = null;
// String code = "UTF-8";
// try {
// inputStream = new FileInputStream(file);
// byte[] head = new byte[3];
// inputStream.read(head);
// if (head[0] == -1 && head[1] == -2) {
// code = "UTF-16";
// }
// if (head[0] == -2 && head[1] == -1) {
// code = "Unicode";
// }
// if (head[0] == -17 && head[1] == -69 && head[2] == -65) {
// code = "UTF-8";
// }
//
// } catch (FileNotFoundException e) {
// e.printStackTrace();
// } catch (IOException e) {
// e.printStackTrace();
// } finally {
// try {
// inputStream.close();
// } catch (IOException e) {
// e.printStackTrace();
// }
// }
// return code;
// }
/**
* 获取文本文档的编码
*
2013年12月5日 下午5:27:07
*
* @param file
* @return
*/
public static String getEncode(File file) {
return FileEncode.getEncodeByUtil(file);
}
public static File validateFile(File file) throws Exception {
if (file != null) {
if (file.isDirectory()) {
if (!file.exists()) {
file.mkdirs();
}
} else {
File parentFolder = file.getParentFile();
if (parentFolder != null && !parentFolder.exists()) {
parentFolder.mkdirs();
}
file.createNewFile();
}
} else {
throw new Exception("传入 的引用为null！");
}
return file;
}
public static void copyFile(String originFilePath, String targetFilePath) {
File originFile = new File(originFilePath);
File targetFile = new File(targetFilePath);
copyFile(originFile, targetFile);
}
public static void copyFile(URL originURL, File targetFile) {
try {
copyFile(originURL.openStream(), targetFile);
} catch (IOException e) {
LOGGER.error(e);
}
}
public static void copyFile(InputStream inputStream, File targetFile) {
if (inputStream == null) {
return;
}
if (!targetFile.getParentFile().exists()) {
targetFile.getParentFile().mkdirs();
}
if (!targetFile.exists()) {
try {
targetFile.createNewFile();
} catch (IOException e) {
LOGGER.error(e);
}
}
OutputStream outputStream = null;
try {
outputStream = new FileOutputStream(targetFile);
} catch (FileNotFoundException e1) {
e1.printStackTrace();
}
byte[] buffer = new byte[1024 * 1024]; // 1M的缓存
try {
int length = inputStream.read(buffer);
while (length > 0) {
byte[] targetBuffer = new byte[length];
System.arraycopy(buffer, 0, targetBuffer, 0, length);
outputStream.write(targetBuffer);
length = inputStream.read(buffer);
}
} catch (IOException e) {
LOGGER.error(e);
} finally {
try {
outputStream.flush();
outputStream.close();
inputStream.close();
} catch (IOException e) {
LOGGER.error(e);
}
}
}
public static void copyFile(File originFile, File targetFile) {
if (originFile.length() == targetFile.length()) {
return;
}
try {
validateFile(targetFile);
} catch (Exception e2) {
e2.printStackTrace();
}
if (!targetFile.exists()) {
try {
targetFile.createNewFile();
} catch (IOException e) {
LOGGER.error(e);
}
}
InputStream inputStream = null;
OutputStream outputStream = null;
try {
inputStream = new FileInputStream(originFile);
outputStream = new FileOutputStream(targetFile);
} catch (FileNotFoundException e1) {
e1.printStackTrace();
}
// System.out.println("Copy file: " + originFile);
// System.out.println("Target file: " + targetFile);
byte[] buffer = new byte[1024 * 1024]; // 1M的缓存
try {
int length = inputStream.read(buffer);
while (length > 0) {
byte[] targetBuffer = new byte[length];
System.arraycopy(buffer, 0, targetBuffer, 0, length);
outputStream.write(targetBuffer);
length = inputStream.read(buffer);
}
} catch (IOException e) {
LOGGER.error(e);
} finally {
try {
outputStream.flush();
outputStream.close();
inputStream.close();
} catch (IOException e) {
LOGGER.error(e);
}
}
}
/**
* 将源文件剪切到目标文件
*
* @param originFile 源文件
* @param targetFile 目标文件
* @return
*/
public static boolean cutFile(File originFile, File targetFile) {
Assert.notNull(originFile);
Assert.notNull(targetFile);
copyFile(originFile, targetFile);
if (originFile.length() == targetFile.length()) {
return originFile.delete();
}
return false;
}
/**
* 检查文件不为空且存在
* 2013-6-24 下午10:52:54
*
* @param file
* @throws Exception
*/
public static void fileNotFullAndExists(File file) throws Exception {
if (file == null || !file.exists()) {
throw new Exception("文件不存在！");
}
}
/**
* 读取inputStream并返回字节数组
* 2013-9-3 下午12:10:06
*
* @param inputStream
* @return
*/
public static byte[] readInputStreamToBytes(InputStream inputStream) throws Exception {
byte[] data = null;
try {
int bufferSize = 128;
byte[] buffer = new byte[bufferSize];
int offset = 0;
ByteBuffer byteBuffer = ByteBuffer.allocate(1024);
int length = -1;
while ((length = inputStream.read(buffer)) != -1) {
// if(length != bufferSize){
// System.arraycopy(buffer, 0, data, offset, length);
// }
// System.arraycopy(buffer, 0, data, offset, length);// 从缓冲区拷贝数组
if (offset + length > byteBuffer.limit()) {
byteBuffer = growByteBuffer(byteBuffer, (int) (byteBuffer.limit() * 1.5));
}
byteBuffer.put(buffer, 0, length);
offset += length;
}
byteBuffer.flip();
// byteBuffer.limit(offset);
data = new byte[offset];
byteBuffer.get(data, 0, offset);
// data = byteBuffer.array();
} catch (IOException e) {
LOGGER.error(e);
} finally {
try {
inputStream.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
return data;
}
public static ByteBuffer growByteBuffer(ByteBuffer byteBuffer, int size) {
Assert.isTrue(size > byteBuffer.limit(), "扩容的大小小于已经存在的字节缓冲！");
ByteBuffer byteBufferNew = ByteBuffer.allocate(size);
byteBuffer.flip();
byteBufferNew.put(byteBuffer);
return byteBufferNew;
}
/**
* 读取文件内容并返回字节数组
* 2013-9-3 下午12:10:06
*
* @param iconFile
* @return
*/
public static byte[] readFileToBytes(File iconFile) throws Exception {
try {
validateFile(iconFile);
} catch (Exception e2) {
e2.printStackTrace();
}
long fileSize = iconFile.length();
if (fileSize > Integer.MAX_VALUE) {
throw new Exception("读取的文件过大！");
}
byte[] data = new byte[(int) fileSize];// 由于文件已经确定，因此大小也可以确定
try {
int length = -1;
FileInputStream inputStream = new FileInputStream(iconFile);
try {
int bufferSize = 128;
byte[] buffer = new byte[bufferSize];
int offset = 0;
while ((length = inputStream.read(buffer)) != -1) {
// if(length != bufferSize){
// System.arraycopy(buffer, 0, data, offset, length);
// }
System.arraycopy(buffer, 0, data, offset, length);// 从缓冲区拷贝数组
offset += length;
}
} catch (IOException e) {
LOGGER.error(e);
} finally {
try {
inputStream.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
} catch (FileNotFoundException e1) {
e1.printStackTrace();
return null;
}
return data;
}
/**
* 将字节组写入文件
* 2013-9-3 下午2:39:21
*
* @param data
* @param file
*/
public static File writeBytesToFile(byte[] data, File file) {
try {
validateFile(file);
} catch (Exception e1) {
e1.printStackTrace();
}
FileOutputStream outputStream = null;
try {
outputStream = new FileOutputStream(file);
outputStream.write(data);
} catch (FileNotFoundException e) {
e.printStackTrace();
LOGGER.error(e);
} catch (IOException e) {
e.printStackTrace();
LOGGER.error(e);
} finally {
if (outputStream != null) {
try {
outputStream.flush();
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
LOGGER.error(e);
}
}
}
return file;
}
/**
* 将字符串写入文件
* 2013-9-6 下午12:09:45
*
* @param file
* @param string
* @return
*/
public static File writeStringToFile(File file, String string) {
try {
byte[] bts = string.getBytes(getEncode(file));
file = writeBytesToFile(bts, file);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
;
LOGGER.error(e);
}
return file;
}
/**
* 将对象写入文件
* 2013-9-6 下午1:08:58
*
* @param targetFile
* @param serializable
*/
public static void serializeObjectToFile(File targetFile, Serializable serializable) {
FileOutputStream fileOutputStream = null;
ObjectOutputStream objectOutputStream = null;
try {
fileOutputStream = new FileOutputStream(targetFile);
try {
objectOutputStream = new ObjectOutputStream(fileOutputStream);
objectOutputStream.writeObject(serializable);
} catch (IOException e) {
LOGGER.error(e);
}
} catch (FileNotFoundException e) {
LOGGER.error(e);
} finally {
closeOutStream(objectOutputStream);
closeOutStream(fileOutputStream);
}
}
public static void closeInputStream(InputStream inputStream) {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
LOGGER.error(e);
}
}
}
public static void closeOutStream(OutputStream outputStream) {
if (outputStream != null) {
try {
outputStream.flush();
} catch (IOException e) {
LOGGER.error(e);
}
try {
outputStream.close();
} catch (IOException e) {
LOGGER.error(e);
}
}
}
public static Object unSerializeObjectFromFile(File targetFile) {
FileInputStream fileInputStream = null;
ObjectInputStream objectInputStream = null;
Object object = null;
try {
fileInputStream = new FileInputStream(targetFile);
try {
objectInputStream = new ObjectInputStream(fileInputStream);
try {
object = objectInputStream.readObject();
} catch (ClassNotFoundException e) {
LOGGER.error(e);
}
} catch (IOException e1) {
e1.printStackTrace();
}
} catch (FileNotFoundException e) {
LOGGER.error(e);
} finally {
closeInputStream(objectInputStream);
closeInputStream(fileInputStream);
}
return object;
}
public static void main(String[] args) {
// try {
// File file = new File("tmp/a.html");
// byte[] data = readFileToBytes(file);
// String encodeStr = Base64.encodeBytes(data);
// byte[] data2 = Base64.decode(encodeStr);
// File rsfile = FileHelper.readBytesToFile(data2,
// File.createTempFile(System.currentTimeMillis() +
// StringUtil.randomString(8), ".html"));
// System.out.println(rsfile);
// System.out.println(encodeStr);
// System.out.println(data.length);
// System.out.println(file.length());
// } catch (Exception e) {
// LOGGER.error(e);
// }
// MessageVO messageVO = new MessageVO();
// File objFile = new File("C:/Users/瑛琪/Desktop/b.obj");
// serializeObjectToFile(objFile, messageVO);
// Object object = unSerializeObjectFromFile(objFile);
// System.out.println(object.equals(messageVO));
//
// File[] files = listFilesBySuffix(new File("C:/Users/瑛琪/Desktop/"),
// "obj");
// for (int i = 0; i < files.length; i++) {
// File file = files[i];
// System.out.println(file);
// }
// EntityHelper.print(getMimeType(new File(
// "C:\\Users\\blade_000\\Desktop\\ad.html")));
// EntityHelper.print(getEncodeByUtil(new File(
// "D:\\workspace_JavaEE\\YIXUN_1.5\\YIXUN_1.5_ENTITY\\src\\main\\java\\com\\kingray\\domain\\bk2\\bk\\BizBank.java")));
// EntityHelper.print(getEncode(new File(
// "D:\\workspace_JavaEE\\YIXUN_1.5\\YIXUN_1.5_ENTITY\\src\\main\\java\\com\\kingray\\domain\\bk2\\bk\\BizBank.java")));
// EntityHelper.print(getEncodeByUtil(new File(
// "C:\\Users\\瑛琪\\Desktop\\ad.html")));
File file = new File(
"C:\\Users\\瑛琪\\Desktop\\test.txt");
File file_bak = new File(
"C:\\Users\\瑛琪\\Desktop\\test2.txt");
String charset = getEncode(file);
EntityHelper.print(charset);
byte[] content = new byte[0];
try {
content = FileHelper.readFileToBytes(file);
} catch (Exception e) {
e.printStackTrace();
}
try {
EntityHelper.print(new String(content, charset));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
FileHelper.writeBytesToFile(content, file_bak);
}
public static void closeReader(Reader reader) {
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static void closeWriter(Writer writer) {
if (writer != null) {
try {
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static void flushAndCloseWriter(Writer writer) {
if (writer != null) {
try {
writer.flush();
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static boolean initFile(File file) {
if (file == null) {
return false;
}
File parentFile = file.getParentFile();
if (!parentFile.exists()) {
return parentFile.mkdirs();
}
return false;
}
}
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