2023年12月5日发(作者：)
java二进制报文头_转自：java文件格式二进制头文件校验
public class FileTypeUtil {
private final static Map FILE_TYPE_MAP = new HashMap();
private static Logger log = ger();
private FileTypeUtil(){}
static{
getAllFileType(); //初始化文件类型信息
}
private static void getAllFileType(){
FILE_TYPE_("ffd8ffe000104a464946", "jpg"); //JPEG (jpg)
FILE_TYPE_("89504e470d0a1a0a0000", "png"); //PNG (png)
FILE_TYPE_("47494638396126026f01", "gif"); //GIF (gif)
FILE_TYPE_("49492a37", "tif"); //TIFF (tif)
FILE_TYPE_("424d228c", "bmp"); //16色位图(bmp)
FILE_TYPE_("424d8240", "bmp"); //24位位图(bmp)
FILE_TYPE_("424d8e1b", "bmp"); //256色位图(bmp)
FILE_TYPE_("41433130", "dwg"); //CAD (dwg)
FILE_TYPE_("3c21444f435459504520", "html"); //HTML (html)
FILE_TYPE_("3c21646f637479706520", "htm"); //HTM (htm)
FILE_TYPE_("48544d4c207b0d0a0942", "css"); //css
FILE_TYPE_("696b2e71623d696b2e71", "js"); //js
FILE_TYPE_("7b5c727466315c616e73", "rtf"); //Rich Text Format (rtf)
FILE_TYPE_("38425000", "psd"); //Photoshop (psd)
FILE_TYPE_("46726f6d3a203d3f6762", "eml"); //Email [Outlook Express 6] (eml)
FILE_TYPE_("d0cf11e0a1b11ae10000", "doc"); //MS Excel 注意：word、msi 和 excel的文件头一样
FILE_TYPE_("d0cf11e0a1b11ae10000", "vsd"); //Visio 绘图
FILE_TYPE_("5374616E64617264204A", "mdb"); //MS Access (mdb)
FILE_TYPE_("252150532D41646F6265", "ps");
FILE_TYPE_("255044462d312e360d25", "pdf"); //Adobe Acrobat (pdf)
FILE_TYPE_("2e524d46", "rmvb"); //rmvb/rm相同
FILE_TYPE_("464c5600", "flv"); //flv与f4v相同
FILE_TYPE_("79706973", "mp4");
FILE_TYPE_("494433f76", "mp3");
FILE_TYPE_("000001ba21", "mpg"); //FILE_TYPE_("3026b2758e66cf11a6d9", "wmv"); //wmv与asf相同
FILE_TYPE_("524946464694c9015741", "wav"); //Wave (wav)
FILE_TYPE_("52494646d07d60074156", "avi");
FILE_TYPE_("4d546864", "mid"); //MIDI (mid)
FILE_TYPE_("504b0800", "zip");
FILE_TYPE_("526172211a0700cf9073", "rar");
FILE_TYPE_("235468697320636f6e66", "ini");
FILE_TYPE_("504b03040a", "jar");
FILE_TYPE_("4d5a9400", "exe");//可执行文件
FILE_TYPE_("3c25406c", "jsp");//jsp文件
FILE_TYPE_("4d616e69666573742d56", "mf");//MF文件
FILE_TYPE_("3c3f786d6c2076657273", "xml");//xml文件
FILE_TYPE_("efbbbf2f2a0d0a53514c", "sql");//xml文件
FILE_TYPE_("7061636b6", "java");//java文件
FILE_TYPE_("406563686f206f66660d", "bat");//bat文件
FILE_TYPE_("1f8b0000", "gz");//gz文件
FILE_TYPE_("6c6f67346a2e726f6f74", "properties");//bat文件
FILE_TYPE_("cafebabe0000002e0041", "class");//bat文件
FILE_TYPE_("49545346", "chm");//bat文件
FILE_TYPE_("00001300", "mxp");//bat文件
FILE_TYPE_("504b0800", "docx");//docx文件
FILE_TYPE_("d0cf11e0a1b11ae10000", "wps");//WPS文字wps、表格et、演示dps都是一样的
FILE_TYPE_("6431303a637265617465", "torrent");
FILE_TYPE_("494d4b48", "264");
FILE_TYPE_("6D6F6F76", "mov"); //Quicktime (mov)
FILE_TYPE_("FF575043", "wpd"); //WordPerfect (wpd)
FILE_TYPE_("CFAD12FEC5FD746F", "dbx"); //Outlook Express (dbx)
FILE_TYPE_("2142444E", "pst"); //Outlook (pst)
FILE_TYPE_("AC9EBD8F", "qdf"); //Quicken (qdf)
FILE_TYPE_("E3828596", "pwl"); //Windows Password (pwl)
FILE_TYPE_("2E7261FD", "ram"); //Real Audio (ram)
FILE_TYPE_("D0CF11E0","xls");
FILE_TYPE_("504B0304","xlsx");
FILE_TYPE_("5265644c","pptx");//ppt、pptx}
/**
* 得到上传文件的文件头
* @param src
* @return
*/
private static String bytesToHexString(byte[] src){
StringBuilder stringBuilder = new StringBuilder();
if(null==src || <= 0){
return null;
}
for(int i = 0; i < ; i++){
int v = src[i] & 0xFF;
String hv = tring(v);
if(() < 2){
(0);
}
(hv);
}
return ng();
}
/**
* 获取文件类型
* @param file
* @return
*/
public static String getFileType(File file){
String res = null;
FileInputStream fis = null;
try{
fis = new FileInputStream(file);
//获取文件头的前六位
byte[] b = new byte[3];
(b, 0, );String fileCode = bytesToHexString(b);
Iterator keyIter = FILE_TYPE_().iterator();
while(t()){
String key = ();
//比较前几位是否相同就可以判断文件格式(相同格式文件文件头后面几位会有所变化)
if(rCase().startsWith(rCase()) || rCase().startsWith(rCase())){
res = FILE_TYPE_(key);
break;
}
}
("文件头:"+fileCode+"-----文件类型:"+res);
();
}catch(FileNotFoundException e){
tackTrace();
}catch (IOException e){
tackTrace();
}finally {
try {
();
}catch (IOException e) {
tackTrace();
}
}
return res;
}
}
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