Introducing the Kaptcha-2.3-jdk15.jar Packageconfiguring in Web. xmlIn the JSP pageTo generate a random verification code. Click to toggleUsing Kaptcha to generate verification codes in Javaweb
(virtual light) codeFlip the code aroundOrFlip code up and downOrGray Format CodeOrX Light Effect CodeOrColor Swap CodesEmbossed Effect CodeCellpadding=0>Illuminated Border Code"Code description"(color is a luminous color code, strength is luminous intensity, filter width = Figure width + luminous intensity x2, filter height = figure Height + luminous intensity x2 +10)Projected border code"Code description"(color is the luminous color code, direction direction (can only be multiples of 45 degre
I 've added a collection of all the iis error codes. If you have any questions, please check them out.
400 the request cannot be parsed.
401.1 unauthorized: access is denied due to invalid creden.
401.2 unauthorized access: access is denied due to server configuration preference to use alternative authentication methods.
401.3 unauthorized: access to requested resources is denied due to ACL settings.
401.4 unauthorized: the filter installed on the Web
(BFI, "JPEG", new FileOutputStream ("f:\\ex\\a.jpg"));//bfi to the canvas, write the canvas to a file JPEG to the specified file format} @Testpublic void Test2 () throws Exception{int width =100;int height=40; BufferedImage BFI =new bufferedimage (width, height, bufferedimage.type_int_rgb); Graphics G=bfi.getgraphics ();//Get the Graphics object can draw//1, set the background (white box) G.setcolor (color.white);//White Brush G.fillrecT (0, 0, width, height);//2, generate random number of stri
/ServerName oalogin.comRedirect 301/login.php http://www.soso.comREDIRECT access to login.php under Oalogin.com to http://www.soso.com, return code 301.If you do not specify a return value for redirect (301 in the previous example), the default redirect is "temporary" (HTTP status 302).Reference:1.rfc261610.3.2 301 Moved Permanently10.3.3 302 Moved temporarily2. Page jumps from HTTP status 301,302,200Http://blog.joycode.com/ghj/archive/2007/09/21/108696.aspx3. 301 Redirection and 302 redirect
This article mainly introduces the solutions for Chinese garbled characters when php generates a QR code, analyzes in detail the methods for generating a QR code by php, and the solutions for garbled characters, has some reference value and needs of friends
This article mainly introduces the solutions for Chinese garbled characters when php generates a QR code, analyzes in detail the methods for generating a QR code by php, and the solutions for garbled characters, has some reference value and n
This article mainly introduces PHP instances that generate random strings and verification codes. if you need a php instance, you can refer to the PHP random number and verification code and articles on the Internet, there are only a few of them.
Simply do it yourself.
Let's start the php Tutorial in this section. the implementation of the following code can distinguish one get_code () and the other create_check_image (), and the output image is call
Two simple PHP anti-SQL injection codes. Two methods are introduced. first, save the following code as safe. put php in the root directory of the website, and add include (safe. php); you can: php anti-injection code Method 1: introduce two methods. first, save the following code as safe. put php in the root directory of the website, and add include ("/safe. php "); you can:
Php anti-injection code Method 1:
$ Value) {if (eregi ($ value, $ StrFil
Support for Ya'an, changing webpages to Gray and how to modify codes
Yayan is supported, and the overall color of the website changes to gray. let's pray for it! As a programmer, what can we do as a webmaster? Pray for the people in Ya'an, Sichuan with their own actions! Let's take actions together. let's pray for the Ya'an people in Sichuan.The following code turns the whole site webpage into a gray css code:
Html {filter: progid:
Program php development simulates login to other websites with verification codes through snoopy
Implementation Requirements:Use snoopy to obtain the sessionid and verification code of site A. the login form is displayed on your website. after submission, snoopy submits the input information to site A for login and obtains the information for analysis.(PS: ^ _ ^ goodPhp Development and Learning Exchange Group:256271784, Verification:CxyIf you
This article mainly introduces the strings and codes in Python. the code is based on Python 2.x. it describes the basics of Python learning. For more information, see
Character encoding
As we have already discussed, strings are also a type of data, but there is another encoding problem that is special to strings.
Because the computer can only process numbers, if you want to process text, you must convert the text into numbers before processing. The e
Google provides a generation of two-dimensional code interface, through the interface we can generate two-dimensional code, convenient and fast.
Interface address http://chart.apis.google.com/chart?chs= width high value x Width high value cht=qrchld= level | margin chl= content
Parameter description:
Wide-high value: Generate two-dimensional code size, units are pixels, the current generated QR codes are square, so the two width and height values are
to make corresponding feedback, then the client only needs to subscribe to thisChannel,The server will then push the results to both the Web version and the client, and when the message is received, it can beGoeasycallback function to do what you want to do. About theGoeasyThe use of push, we can refer to this blog:http://www.cnblogs.com/jishaochengduo/articles/5552645.html,alsoGoeasyThere is also a push on the official websiteDemo:GoeasyTwo-dimensional codeScan Code LoginDemo,we can see the ef
Asp.net three email sending codes (stmp, no component email sending)
Asp tutorial. net three email sending code (stmp, no component email sending)
Public bool sendmails (){Smtpclient _ smtpclient = new smtpclient ();_ Smtpclient. deliverymethod = smtpdeliverymethod. network; // specify the email sending Method_ Smtpclient. host = "ip address"; // specify the smtp server_ Smtpclient. credentials = new system.net. networkcredential (_ straccount, _ st
Source code for identifying QQ verification codes (C #/NET1.1)Using System;Namespace QQ{/// /// Summary of yzm./// Public class yzm{Public yzm (public System. Drawing. Bitmap pic){This. bp = pic;}/// /// Store an int value into a 4-byte array (Conversion starts from the high address, and the value of the highest address is included in the "and operation" with an unsigned integer ")/// /// /// Public static void getbytesfromint (int thevalue, byte [] t
This article mainly introduces js, based on the browser type of the mobile client, to determine how to jump to multiple instance codes of the mobile website on the official website. For more information, see
Instance 1: relatively simple and crude, lack of point type judgment
Traffic-driven CMS2 files, two injections, five problem codes, and other injection bypass MethodsThe vendor has made great efforts in security. Although many parameters and data type conversion are involved, there will inevitably be omissions. We hope to continue our efforts to inject the file User/UserZone/StructView. aspx parameter: ID background code snippet:
public void Page_list() { ..... DataTable dataTable = this.user.Sel("Struc
-line field does not allow406--request resource is inaccessible based on accept drag sent by user407--similar to 401, the user must first be authorized on the proxy server408--client does not complete the request within the user-specified time of starvation409--the current resource state, the request cannot be completedThis resource is no longer available on the 410--server and has no further reference address411--server rejects user-defined Content-length property requests412--one or more reque
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