Preface

Here is a little jsp Of , By the way , Not very familiar , Because now this technology is relatively backward , But as a learning process, I also learned .
Because technology is not very commonly used now , So I didn't take notes alone . Some knowledge of the previous paragraph , Simply combine some back-end knowledge , As a simple exercise at this stage .
Although simple, knowledge is worth noting , Because the front and back ends of the implementation involve principled things , And bits and pieces of knowledge , So write it down yourself .
Take a look mvc And the idea of three-tier architecture . I didn't study very deeply , But it can be seen that it is a thought of divide and rule , Is to realize their respective functions , Make the services between functions more organized , Instead of mixing together .

The above is mvn Pattern , The following corresponds to a three-tier architecture . We are programming from the thinking of data access layer, business logic layer and presentation layer .

Our goal is to achieve a front-end and back-end project , Complete an operation of adding, deleting, modifying and querying , Display the form on the front page .

For details, see the following display .

Environmental preparation

establish web Project structure

Here, of course, you can choose the skeleton

I chose not to use the skeleton

This is the created one pom The configuration file

Then we configure it war packaging .

This is our current structure , Then we need to supplement some directories and configurations

Let's open the project structure to see , Then select Facets, Then we see that our new one is not recognized as web modular .

Then let's add , Click on the plus sign , And then choose web.

Then add your module

Click continuously to confirm

Then we click here .

Then the best choice is 3.0 Later versions

Then confirm later .

Now let's look at the project catalogue , Making small changes . The project structure is still not quite correct

Let's put the web Drag onto main Next

And then WEB-INF Drag onto web below

In this way, the basic transformation is completed .
Here we explain how to create your own web The process of project structure . We all said before , Including the skeleton . Review here again .