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("/checkcode") public class Checkcode extends HttpServlet {private static fi nal long serialversionuid = 1L; protected void doget (HttpServletRequest request, httpservletresponse response) throws Servletexception, Ioexcep tion {} protected void DoPost (HttpServletRequest request, httpservletresponse response) throws Servletex Ception, IOException {String code = request.getparameter ("code");

QR code scanning and generation-third-party Open Source-ZXing, third-party Open Source-zxing Extraction of ZXing QR code Function lib: https://github.com/xuyisheng/ZXingLib 1. Scan the QR code: This CaptureActivity class is used for scanning. We directly download libzxing from the above class as the Module, for example

*/ Public StaticString decode (BufferedImage bufferedimage)throwsdecodingfailedexception, unsupportedencodingexception{qrcodedecoder decoder=NewQrcodedecoder (); return NewString (Decoder.decode (NewMyqrcodeimage (BufferedImage)), "Utf-8"); } /*** Image Zoom*/ Private StaticBufferedImage Resize (bufferedimage image,intsize) {BufferedImage BufferedImage=Newbufferedimage (size, size, BUFFEREDIMAGE.TYPE_INT_RGB); Graphics2D GS=Bufferedimage.creategraphics (); Gs.setbackground

Reference: http://www.cnblogs.com/vmyspace/archive/2012/04/05/2433233.htmlToday, project needs, references wrote a QR code generation background based on Gma.QrCodeNet.EncodingFront desk HTML directly request address, fixed image aspect can be used.Using System;Using System.Collections.Generic;Using System.Web;Using Gma.QrCodeNet.Encoding;Using System.IO;Using System.Text;Using System.Drawing;Using System.D

This article provides a PHP tutorial Chinese character Verification Code generation program, if you create Chinese characters in the picture, need font file and Imagettftext function, we use the time to search online. You have to generate a random number, which has the Mt_rand function; You also use the session to save the random number, and if you need to turn to utf-8, you need to iconv the function.

QR code generation helper class [java] package com. dream. qrcodeen; import java. awt. image. bufferedImage; public class TwoDimensionCodeImage {BufferedImage bufImg; public TwoDimensionCodeImage (BufferedImage bufImg) {this. bufImg = bufImg;} public int getHeight () {return bufImg. getHeight ();} public int getPixel (int x, int y) {return bufImg. getRGB (x, y);} public int getWidth () {return bufImg. getWi

Php random number code/php random generation number instance lt ;? Php // seed user-defined functions use microseconds as the seed functionseed () {list ($ msec, $ sec) = explode ('', microtime (); return (float) $ sec;} php random number code/php random number generation instance // Seed user-defined functions u

Python numpy generation matrix, serial matrix code sharing, pythonnumpy Import numpy Several functions related to generating the numpy matrix: Numpy. array ()Numpy. zeros ()Numpy. ones ()Numpy. eye () Several related functions used to generate the numpy matrix in tandem: Numpy. array ()Numpy. row_stack ()Numpy. column_stack ()Numpy. reshape () >>> import numpy >>> numpy.eye(3) array([[ 1., 0., 0.], [ 0.

For more information, please click here.Canvas Bézier curve code online generation toolCan quickly generate two times, three times Bezier curve of the source generator, easy to use to canvas drawing of the classmate, you can directly preview the effect at random to draw the image you want.Generate a preview of the source effect:Canvas = document.getElementById ("canvas"); CTX = Canvas.getcontext ("2d") Ctx.

The shell script uses here Document to package C's source code and compile the build to execute. Shell-to- generation attack program Cat 1.sh #!/bin/bash#echo "is producing hello.c ... "Echocat This is the Shell script attack principle prototype. This really works. Record it, maybe later. The shell script uses here Document to package C's source code and compile

PowerDesigner inversion Java code generation class diagram First of all, of course, a new oom. Click language-gt; Reverse Engineer Java ... Different versions, the menu may not be the same, mine is 12.5 In this step, of course, you choose the Java class to invert. But it took a long time to find a way to import the folder. Just click OK at the end of the line. Here is the. Share to:PowerDesigner inv

MVC + EasyUI + three-layer news website creation (three verification code generation), mvceasyui In the NewWeb. Common class library of the project, we create a class to store the code that generates the verification code. Here, my class name is ValidateCode. Code of the Va

The sqlmetal command line tool can be generated for the. NET Framework's LINQ to SQL component.CodeAnd ing. By applying the options next to this topic, you can instruct sqlmetal to perform several different operations, including: Generate from databaseSource codeAnd ing properties or ing files. Generate an intermediate database Markup Language (. dbml) file for custom use from the database. Generate code and ing attributes or ing files f

MVC + EasyUI + layer-3 news website build verification code generation (3), mvceasyui In the NewWeb. Common class library of the project, we create a class to store the code that generates the verification code. Here, my class name is ValidateCode. Code of the ValidateCode c

{//TODO auto-generated Method StubBufferedImage img =NewBufferedImage ( -, -, Bufferedimage.type_int_argb_pre); Graphics g=Img.getgraphics (); G.setcolor (Color.gray); G.fillrect (0,0, the, -); Draw Verification Code Background g.setcolor (Color.White); G.setfont (NewFont ("Song Body", Font.Bold, -)); Random Rand=NewRandom (); String Code=""; for(intI=0;i4; i++) {//rand

*@throwsException*/ Public StaticString decode (file file)throwsException {bufferedimage image; Image=imageio.read (file); if(Image = =NULL) { return NULL; } Bufferedimageluminancesource Source=NewBufferedimageluminancesource (image); Binarybitmap Bitmap=NewBinarybitmap (NewHybridbinarizer (source)); result result; Hashtable hints=NewHashtable (); Hints.put (Decodehinttype.character_set, CHARSET); Result=NewMultiformatreader (). Decode (bitmap, hints); Strin

._noisecount = _noisecount;}}Call and compare:@RequestMapping (value = "/imagesanpeng", method = Requestmethod.get)protected void Imagesanpeng (HttpServletRequest req, HttpServletResponse resp)Throws Exception {Codemaker C = new Codemaker ();C.getcode (RESP);Req.getsession (). SetAttribute ("code", c);}@RequestMapping (value = "/TXMBJ", method = Requestmethod.post)protected void Txmbj (HttpServletRequest req, HttpServletResponse resp,@RequestParam (va