base64 to pdf java

nameString files =NewSimpleDateFormat ("Yyyymmddhhmmsssss"). Format (NewDate ())+ (NewRandom (). Nextint (9000)% (9000-1000 + 1) + 1000) + ". png"; //generate file pathString filename = Constant.upload_path +files; Try { //Generating FilesFile ImageFile =NewFile (filename); Imagefile.createnewfile (); if(!imagefile.exists ()) {Imagefile.createnewfile (); } outputstream ImageStream=NewFileOutputStream (ImageFile); Imagestream.

Java Implementation BASE64 codecAuthor: Chszs, reproduced in the note. Blog home:Http://blog.csdn.net/chszsBASE64 and other similar coding algorithms are often used to convert binary data into textual data, which is intended to simplify storage or transmission. In more detail, the BASE64 algorithm is primarily used to convert binary data into ASCII string formats

Java Implementation BASE64 codecChszs, reprint need to indicate. Blog home:Http://blog.csdn.net/chszsBASE64 and other similar coding algorithms are often used to convert binary data into textual data, which is intended to simplify storage or transmission. In more detail, the BASE64 algorithm is primarily used to convert binary data into ASCII string formats. The

Java Implementation BASE64 codecChszs, reprint need to indicate. Blog home:Http://blog.csdn.net/chszsBASE64 and other similar coding algorithms are often used to convert binary data into textual data, which is intended to simplify storage or transmission. In more detail, the BASE64 algorithm is primarily used to convert binary data into ASCII string formats. The

Java Implementation BASE64 codecChszs, reprint need to indicate. Blog home:Http://blog.csdn.net/chszsBASE64 and other similar coding algorithms are often used to convert binary data into textual data, which is intended to simplify storage or transmission. In more detail, the BASE64 algorithm is primarily used to convert binary data into ASCII string formats. The

Java uses Apache commons codec for MD5 encryption, BASE64 encryption and decryption, and executes system commands, commonsbase64 Before writing the code, let's first introduce the two packages we will use; Commons-codec-1.10.jarTool packages used to process common encoding methods in the Commons project, such as DES, SHA1, MD5, Base64, URL, and Soundx. Commons-ex

Java implements a conversion between a picture and a base64 stringPackagecom.zxc.testjava.ant;ImportJava.io.FileInputStream;ImportJava.io.FileOutputStream;Importjava.io.IOException;ImportJava.io.InputStream;ImportJava.io.OutputStream;ImportSun.misc.BASE64Decoder;ImportSun.misc.BASE64Encoder; Public classTestchangeimage { Public Static voidMain (string[] args) {String strimg=Getimagestr (); System.out.printl

+ evehpu1fqun7hv2txh5kkcckckkf+sq3xbzs0en7slfpxv6bez31uwug3soh70hmjr/1zo/5avjh0kpetbedv7up95hhviq2b9o/ 7z0azn9h9nui7ip8a5zyvsezhcwlzd1v3twpky7uarf8alop4p9xjuwbnb2q1afvbf5+f3dacexh/am9kktakkap/ 2xd3d2lknwnutwv4ogfgcefwceyrzgl2vkcwuk5lqt09 "; Generateimage (strimg, "d:\\wangyc.jpg"); The test converts from picture file to Base64 encoded SYSTEM.OUT.PRINTLN (GETIMAGESTR ("d:\\wangyc.jpg")); } PublIC static string Getimagestr (String imgfile

. WhenCodeIf the number is not an integer multiple of 3, the remainder of code/3 is 2 or 1. During conversion, if the result is less than six digits, 0 is used to fill in the corresponding position, and then two zeros are added before the six digits. After the empty output result is converted, "=" is used to fill the bits. For example, if the remaining result is two bytes of "sheets ":String "Zhang"11010101 HEX: D5 11000101 HEX: C5 00110101 00011100 00010100Decimal 53 decimal 34 decimal 20 pa

=base64util.encryptbase64 (Key.getBytes ("UTF-8" )); System.out.println ("encrypt:" +encrypt); catch (unsupportedencodingexceptione) {e.printstacktrace ();} catch (exceptione) {e.printstacktrace ();} Try{byte[]decrypt=base64util.decryptbase64 (encrypt); System.out.println ("decrypt:" +newstring (decrypt, "UTF-8"));} catch (exceptione) {e.printstacktrace ();}} /*** for BASE64 encryption (encoding) ** @param key* PlusSecret characters * @return * charac

BASE64 encoding is a binary-to-character process that can be used to pass longer identity information in an HTTP environment.Base64 is a stringPom.xml Configuration Encrypt and decrypt code /*** Decryption * *@parampwd *@return * @see[Class, Class # method, Class # member]*/ Public Staticstring Decodestr (string pwd) {Base64 base64=NewBase64

to Base64 encoded string3*@Author:4*@CreateTime:5* @return6*/7 Public Staticstring Getimagestr (String imgfile) {8InputStream InputStream =NULL;9 byte[] data =NULL;Ten Try { OneInputStream =NewFileInputStream (imgfile); Adata =New byte[Inputstream.available ()]; - inputstream.read (data); - inputstream.close (); the}Catch(IOException e) { - e.printstacktrace (); - } - //Encrypt +Encoder Encoder =

Java Implementation BASE64 codecChszs, reprint need to indicate. Blog home:Http://blog.csdn.net/chszsBASE64 and other similar coding algorithms are often used to convert binary data into textual data, which is intended to simplify storage or transmission. In more detail, the BASE64 algorithm is primarily used to convert binary data into ASCII string formats. The

SHA checksum code). Call the digest method with the MessageDigest object to convert the number combination into a character array:1 String data = "1"; 2 3 MessageDigest MD = messagedigest.getinstance ("MD5"); 4 byte [] MD5 = md.digest (data.getbytes ()); 5 6 System.out.println (arrays.tostring (MD5));The array of bytes obtained is 128 bits , or 16 bytes. In other words, there are 16 elements in the character array after MD5, because the range of byte in

Base64 encoded after the formation of a more stupid way is to put this string on the Base64 decoding site, multiple decoding, can solve the problem, but a waste of time, consider a bit, you can use a simple Java program to solve the problem.The Java environment used is: jdk1.8.0_112. The development environment is: Ec

= Base64data.length;Ignore the ' = ' paddingwhile (base64data[lastdata-1] = = PAD) {if (--lastdata = = 0) {return new byte[0];}}Decodeddata = new Byte[lastdata-numberquadruple];}for (int i = 0; i Dataindex = i * 4;Marker0 = Base64data[dataindex + 2];Marker1 = Base64data[dataindex + 3];B1 = Base64alphabet[base64data[dataindex]];b2 = Base64alphabet[base64data[dataindex + 1]];if (Marker0! = Pad marker1! = Pad) {No PAD e.g 3cQlB3 = Base64alphabet[marker0];B4 = Base64alphabet[marker1];Decodeddata[e

1 2 3 4 5 6 7 8 9 10 11 byte[] CipherData = Base64.encodebase64 (Plaintext.getbytes ()); Default No Line byte[] CipherData = Base64.encodebase64 (Plaintext.getbytes (), false); Cancel newline byte[] CipherData = base64.encodebase64chunked (Plaintext.getbytes ()); Wrap String ciphertext = base64.encodebase64string (

)); * * String key = Coder.initmackey (); SYSTEM.ERR.PRINTLN ("Mac key:/n" + * key); * *//verify HMAC for the same content, the same key encryption is consistent * Assertarrayequals (Coder.encrypthmac (Inputdata, key), * Coder.enc Rypthmac (Inputdata, key)); */BigInteger MD5=NewBigInteger (CODER.ENCRYPTMD5 (inputdata)); System.err.println ("MD5:" + md5.tostring (16)); BigInteger sha=NewBigInteger (Coder.encryptsha (inputdata)); System.err.println ("SHA:" + sha.tostring (32)); Big