cn.ipokerface.weixin.utils.FileUtils Maven / Gradle / Ivy
package cn.ipokerface.weixin.utils;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLConnection;
import java.util.HashMap;
import java.util.Map;
/**
* Created by PokerFace
* Create Date 2019-12-27.
* Email: [email protected]
* Version 1.0.0
*
* Description:
*/
public class FileUtils {
private final static Map FILE_TYPE_MAP = new HashMap();
static {
FILE_TYPE_MAP.put("ffd8ffe000104a464946", "jpg");
FILE_TYPE_MAP.put("89504e470d0a1a0a0000", "png");
FILE_TYPE_MAP.put("47494638396126026f01", "gif");
FILE_TYPE_MAP.put("49492a00227105008037", "tif");
FILE_TYPE_MAP.put("424d228c010000000000", "bmp"); // 16色位图(bmp)
FILE_TYPE_MAP.put("424d8240090000000000", "bmp"); // 24位位图(bmp)
FILE_TYPE_MAP.put("424d8e1b030000000000", "bmp"); // 256色位图(bmp)
FILE_TYPE_MAP.put("49443303000000002176", "mp3");
FILE_TYPE_MAP.put("52494646", "wav");
FILE_TYPE_MAP.put("00005741", "wav");
FILE_TYPE_MAP.put("2321414d", "amr");
FILE_TYPE_MAP.put("520a3c91", "amr");
FILE_TYPE_MAP.put("2e524d46000000120001", "rmvb"); // rmvb、rm
FILE_TYPE_MAP.put("464c5601050000000900", "flv"); // flv、f4v
FILE_TYPE_MAP.put("667479706d70", "mp4");
FILE_TYPE_MAP.put("667479706973", "mp4");
FILE_TYPE_MAP.put("000001ba210001000180", "mpg");
FILE_TYPE_MAP.put("3026b2758e66cf11a6d9", "wmv"); // wmv、asf
FILE_TYPE_MAP.put("52494646d07d60074156", "avi");
FILE_TYPE_MAP.put("41433130313500000000", "dwg");
FILE_TYPE_MAP.put("3c21444f435459504520", "html");
FILE_TYPE_MAP.put("3c21646f637479706520", "htm");
FILE_TYPE_MAP.put("48544d4c207b0d0a0942", "css");
FILE_TYPE_MAP.put("696b2e71623d696b2e71", "js");
FILE_TYPE_MAP.put("7b5c727466315c616e73", "rtf");
FILE_TYPE_MAP.put("38425053000100000000", "psd");
FILE_TYPE_MAP.put("46726f6d3a203d3f6762", "eml");
FILE_TYPE_MAP.put("d0cf11e0a1b11ae10000", "doc"); // MS Excel、Word、Msi
FILE_TYPE_MAP.put("d0cf11e0a1b11ae10000", "vsd");
FILE_TYPE_MAP.put("5374616E64617264204A", "mdb");
FILE_TYPE_MAP.put("255044462d312e350d0a", "pdf");
FILE_TYPE_MAP.put("4d546864000000060001", "mid");
FILE_TYPE_MAP.put("504b0304140000000800", "zip");
FILE_TYPE_MAP.put("526172211a0700cf9073", "rar");
FILE_TYPE_MAP.put("235468697320636f6e66", "ini");
FILE_TYPE_MAP.put("504b03040a0000000000", "jar");
FILE_TYPE_MAP.put("4d5a9000030000000400", "exe");
FILE_TYPE_MAP.put("3c25402070616765206c", "jsp");
FILE_TYPE_MAP.put("4d616e69666573742d56", "mf");
FILE_TYPE_MAP.put("3c3f786d6c2076657273", "xml");
FILE_TYPE_MAP.put("494e5345525420494e54", "sql");
FILE_TYPE_MAP.put("7061636b616765207765", "java");
FILE_TYPE_MAP.put("406563686f206f66660d", "bat");
FILE_TYPE_MAP.put("1f8b0800000000000000", "gz");
FILE_TYPE_MAP.put("6c6f67346a2e726f6f74", "properties");
FILE_TYPE_MAP.put("cafebabe0000002e0041", "class");
FILE_TYPE_MAP.put("49545346030000006000", "chm");
FILE_TYPE_MAP.put("04000000010000001300", "mxp");
FILE_TYPE_MAP.put("504b0304140006000800", "docx");
FILE_TYPE_MAP.put("d0cf11e0a1b11ae10000", "wps");// WPS(wps、et、dps)
FILE_TYPE_MAP.put("6431303a637265617465", "torrent");
FILE_TYPE_MAP.put("6D6F6F76", "mov");
FILE_TYPE_MAP.put("FF575043", "wpd");
FILE_TYPE_MAP.put("CFAD12FEC5FD746F", "dbx");
FILE_TYPE_MAP.put("2142444E", "pst");
FILE_TYPE_MAP.put("AC9EBD8F", "qdf");
FILE_TYPE_MAP.put("E3828596", "pwl");
FILE_TYPE_MAP.put("2E7261FD", "ram");
}
private static String bytesToHexString(byte[] src) {
StringBuilder stringBuilder = new StringBuilder();
for (int i = 0; i < src.length; i++) {
int v = src[i] & 0xFF;
String hv = Integer.toHexString(v);
if (hv.length() < 2) {
stringBuilder.append(0);
}
stringBuilder.append(hv);
}
return stringBuilder.toString();
}
/**
* 获取文件类型
*/
public static String getFileType(InputStream is) {
String fileType = "file";
try {
byte[] b = new byte[10];
int t = is.read(b, 0, b.length);
if (t > 0) {
String fileCode = bytesToHexString(b).toLowerCase();
for (Map.Entry entry : FILE_TYPE_MAP.entrySet()) {
String key = entry.getKey().toLowerCase();
if (key.startsWith(fileCode) || fileCode.startsWith(key) || key.endsWith(fileCode) || fileCode.endsWith(key)) {
fileType = entry.getValue();
break;
}
}
}
} catch (IOException e) {
;
} finally {
if (is != null) {
try {
is.close();
} catch (IOException ignore) {
;
}
}
}
return fileType;
}
/**
* 获取文件后缀
*/
public static String getFileExtension(String fileName) {
int extensionPos = fileName.lastIndexOf(".");
if (extensionPos < 0) {
return "";
}
int lastUnixPos = fileName.lastIndexOf("/");
int lastWindowsPos = fileName.lastIndexOf("\\");
int lastSeparator = Math.max(lastUnixPos, lastWindowsPos);
return lastSeparator > extensionPos ? "" : fileName.substring(extensionPos + 1);
}
/**
* 删除文件
* @param filePath
* @return
*/
public static boolean deleteFile(String filePath) {
File file = new File(filePath);
if (!file.exists()) {
return true;
}
if (file.isFile()) {
return file.delete();
}
return false;
}
public static void main(String[] args) throws IOException {
InputStream is = new FileInputStream(new File("/Users/jy/Downloads/test.mp4"));
System.err.println(getFileType(is));
System.err.println(URLConnection.guessContentTypeFromStream(is));
}
}