base64 to pdf java

In. NET, you can use Convert. ToBase64String (FileUpload1.FileBytes) to Convert the uploaded image file to a string in Base64 format. Introduce the ws-commons-util-1.0.2.jar package in Java, or the org. python. apache. xerces. impl. dv. util. Base64.decode (youtData) (jython. jar) package can be restored using the following methods

Java base64 encoding and decodingpublic static void Main (string[] args) throws Exception {String parm = "title= don't do this, content= good";//Base64decoderst Ring paramBase64 = new Base64encoder (). Encode (Parm.getbytes ("Utf-8")); System.out.println ("Turn base64:" + paramBase64); Base64decoder decoder = new Base64decoder (); byte[] Decoderstr = Decoder.deco

BASE64 encryption algorithm, widely used, especially in e-mail transmission, has a great useThe program code written in Java is as followsImportjava.awt.BorderLayout;ImportJava.awt.EventQueue;Importjava.awt.event.ActionEvent;ImportJava.awt.event.ActionListener;Importjava.io.IOException;ImportJavax.swing.JFrame;ImportJavax.swing.JPanel;ImportJavax.swing.border.EmptyBorder;ImportJavax.swing.JTextArea;ImportJa

Static byte[] MD5 (byte[] bytes) the {117 MessageDigest MD;118 Try119 { -MD = Messagedigest.getinstance ("MD5");121}Catch(nosuchalgorithmexception e)122 {123 Throw NewRuntimeException ("Error content", e);124 } the md.update (bytes);126 returnmd.digest ();127 } - 129 /** the * Get string MD5 value131 * @parammsg the * @returnMD5133 * @throwsException134 */135 Public Static byte[] MD5 (String msg)136 {1

(InvalidKeyException e) {e.printstacktrace (); } Catch(unsupportedencodingexception e) {e.printstacktrace (); } Catch(illegalblocksizeexception e) {e.printstacktrace (); } Catch(badpaddingexception e) {e.printstacktrace (); } return NULL; } /*** Decryption * *@paramcontent * What to decrypt *@paramPassword * Decryption key *@return */ Public Static byte[] Decryptaes (byte[] content, String password) { Try{keygenerator KGen= Keygenerator.getinstance ("AES"); Kgen.init (1

Package com; Import java.io.UnsupportedEncodingException; Import Sun.misc.BASE64Decoder; Import Sun.misc.BASE64Encoder; public class Demo {public static void main (string[] args) {String str = "Zhang"; String base64=getbase64 (str); System.out.println (base64); String res = getFromBase64 (base64); System.out.println (RES); }//Encrypt public static stri

Package com.bao.tools.encryption;Import java.io.IOException;Import Org.junit.Test;Import Sun.misc.BASE64Decoder;Import Sun.misc.BASE64Encoder;/*** @title BASE64 Encryption Decryption* @description* Mail, HTTP protocol, general user name and password* @author Administrator* @date 2015-7-16*/public class CBase64 {/*** Encryption* Base64encoder Class*/public static string setencrypted (string value) {if (value==null) return null;return new Base64encoder

The jar package used here is Commons-codec-1.10.jar; Sample code 1 import java.io.FileInputStream; 2 import java.io.FileOutputStream; 3 import java.io.IOException; 4 import java.io.InputStream; 5 import java.io.OutputStream; 6 7 import org.apache.commons.codec.binary.Base64; 8 9 10 /** 11 * Convert images to Base64 Attach an example of displaying a picture in HTML; The converted picture

Test instructions: string with N and a string (can have spaces) encoded n timesEncoding: Each character of the string is converted into ASCII code, and ASCII code is converted to 8-bit 2-binary,The binary number is divided into 6 bits (not enough for 0), and then the decimal number is converted into letters in the following wayAfter the conversion to a letter, if the length is not an integer multiple of 4, after the string to fill =For example, the ASCII code of the 84,104,101 turns into 8-bit 2

Generate a QR code image or base64 format string by passing in a string1 Public StaticString Barcode2base64 (String msg)throwsexception{2QRCode x =NewQRCode ();3 //N Represents the number, a represents a-z,b for other characters4X.setqrcodeencodemode (' B ');5 //set error correction level6X.setqrcodeerrorcorrect (' M ');7 //Set version number (1-40)8X.setqrcodeversion (7);9 Ten intwidth = 67+12* (7-1); One

This article describes the Java BASE64 encryption, decryption coding exception handling class, although the code is very short, but can effectively avoid the use of BASE64 encryption and decryption when the problem of performing errors, where the use of Com.gootrip.util package, and introduced java.io all the methods. The specific function code is as follows:

Public classImgBase64 { Public Static voidMain (string[] args)//test {String strimg=Getimagestr (); System. out. println (STRIMG); } Public StaticString getimagestr ()//Picture goto base64 {//Picture pathString Imgfile ="D:\\users\\sys\\pictures\\1.png";//InputStreaminch=NULL; byte[] data =NULL; Try { inch=NewFileInputStream (Imgfile); Data=New byte[inch. Available ()]; inch. Read (data); inch. Close ();

JS code//upload with Formdata1 varDataurl = $ (' #canvas '). Getdataurl ();2 varimg = $ (' '). attr (' src ', dataurl);//Show Pictures3 varOmyform =NewFormData ();//Create Formdata4 varBlobbin = Dataurltoblob (Dataurl);//Base64 converting BLOBs5Omyform.append ("Blobobject", Blobbin);//want to formdata add BLOB data6 $.ajax ({7URL: $.geturl () + "activity/updateimg",8Type: "POST",9 Data:omyform,TenAsyncfalse, OneCachefalse, AContentType:false, -Proces

BASE64 Encryption and decryption PackageCom.stone.util; Importjava.io.UnsupportedEncodingException; ImportSun.misc.*; Public classBase64 {//Encrypt Public Staticstring getBase64 (String str) {byte[] B =NULL; String s=NULL; Try{b= Str.getbytes ("Utf-8"); } Catch(unsupportedencodingexception e) {e.printstacktrace (); } if(b! =NULL) {s=NewBase64encoder (). Encode (b); } returns; } //decryption Public Staticstring GetFrom

In. net, you can use convert. tobase64string (fileupload1.filebytes) to convert the uploaded image file to a string in base64 format. Introduce the ws-commons-util-1.0.2.jar package in Java, or the org. Python. Apache. xerces. impl. DV. util. base64.decode (youtdata) (Jython. Jar) package can be restored using the following methods String youtData = "R0lGODdhEAA

1 Public Static byte[] Base64string2bytefun (String base64str) {2Base64decoder decoder =NewBase64decoder ();3 byte[] B =NULL;4 Try {5b =Decoder.decodebuffer (BASE64STR);6 for(inti = 0; i i) {7 if(B[i] ) {8B[i] + = 256;9 }Ten } One}Catch(IOException e) { A e.printstacktrace (); - } - the returnb; - } - Public Staticstring Getimagestr (String imgfile) { -InputStream InputStream =NULL; +

Summary Since Adobe released its public PDF reference for the first time in 1993, PDF tools and libraries supporting various languages and platforms have sprung up. However, the support of Adobe Technology in Java application development lags behind. Since Adobe released its public PDF reference for the first time in 1

packagecom.example.decript;importjava.io.unsupportedencodingexception;import java.security.invalidkeyexception;importjava.security.messagedigest;import java.security.nosuchalgorithmexception;importjava.security.securerandom;import javax.crypto.badpaddingexception;importjavax.crypto.cipher;import javax.crypto.illegalblocksizeexception;importjavax.crypto.keygenerator;import javax.crypto.nosuchpaddingexception;importjavax.crypto.secretkey;import javax.crypto.spec.secretkeyspec;publicclassdecripttes

Image.base64.Base64ImageConvertor.javaPackageimage;importsun.misc.base64decoder;importsun.misc.base64encoder;importjava.io.* ;p ublicclassbase64imageconvertor{publicstaticstring convertimagetostring (Filefile) throwsException{ base64encoderbase64encoder=newbase64encoder (); fileinputstreamfis=newfileinputstream (file); ByteArrayOutputStreambyteArrayOutputStream=new Bytearrayoutputstream (); base64encoder.encodebuffer (fis, Bytearrayoutputstream);stringstr= Bytearrayoutputstream.tostring (); fis.

Import Sun.misc.BASE64Encoder;Import Sun.misc.BASE64Decoder;public class Base64encoder {public static void Main (string[] args) throws Exception {Base64encoder encoder = new Base64encoder ();String username = "[email protected]";String password = "674515zsz";String a = Encoder.encode (Username.getbytes ());String B = Encoder.encode (Password.getbytes ());System.out.println (A + "\ n" + b);Base64decoder decoder = new Base64decoder ();String C = A;String d = b;String e = new String (Decoder.decode