Java generate image verification code example code

The articles on java image verification code have been updated recently to help you master the generation technology of Java verification code. Below, we share the simplest method of generating java image verification code for your reference.

Now, various industries will consider machine registration when customizing the system. Now the most effective way is input verification. There are many verification methods:

1、 Question verification, in fact, is also picture verification. Generate a question on the picture, and then enter the answer in the input box.

2、 Image verification, input the text information displayed on the image.

3、 SMS verification is complicated, and users don't like it very much.

4、 There is Baidu's latest verification method. Generate text on the image, and then a text Click box appears to select the text you see on the verification image. Now let's share the code for generating verification code in Java, which is a basic code. It can be used directly in learning. If you need more complex verification, you can add logical verification yourself.

This code is the basic method of generating verification images.

The above is the whole content of this article. I hope it will be helpful to your study. You can also view the previous articles for in-depth study.