


How Ajax+Struts2 implements user input verification code verification function
This time I will show you how Ajax+Struts2 implements the user input verification code verification function. What are the precautions for Ajax+Struts2 to implement the user input verification code verification function. , the following is a practical case, let’s take a look.
As we all know, verification codes are very common in our lives. Many companies are tossing out various verification codes. Here is a brief case to implement the function of verification codes ( ps: I actually hate the verification code thing). What I’m sharing today is to use ajax to dynamically verify whether the verification code input is correct. What we use here is ajax+struts2 for this verification. Let's create a new web project. Then you need to import the corresponding package of struts. Then we need to write a class to generate the verification code. The name here is 01_image.jsp. The main function of this type is to generate a verification code, which contains various drawn lines, random numbers, etc. I set up a 5-digit verification here. If you want to change It can be changed into other formats. The general idea is to add letters to the loop that generates numbers.1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 |
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