spring baby steps

[Blue2525989]

Hello all, So I have been adventuring with Spring Boot to try and learn. So far I have a boot application that can add to or show all elements in a MySQL database. i either put localhost/sql/all to show them all or localhost/sql/add?ID=1&name=jason&brief=whatever&description=wha tever&rank=5 to add a new entry.

What I want to do now is add web pages where I can have a form instead of typing it all in the address bar. So do I use jsp or html or how should I approach this? I use gradle to build not maven I dunno if that matters in terms of approach or not. Any good tutorials or links to ideas would be appreciated, thanks.

[Blue2525989]

also I am having a problem with this file. when I click submit it loads a page that says:

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.
Sun Feb 12 16:15:51 CST 2017
There was an unexpected error (type=Method Not Allowed, status=405).
Request method 'POST' not supported

here is the code. If you need the related files to know whats wrong let me know ill post it.

package jasonWebpage;

import javax.validation.Valid;

import org.springframework.stereotype.*;
import org.springframework.validation.*;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.config.annotation.*;

@Controller
public class PersonController extends WebMvcConfigurerAdapter{

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/results").setViewName("results");
    }

    @GetMapping("/form")
    public String showForm(jasonWebpage.PersonForm personForm) {
        return "form";
    }

    @PostMapping("/form")
    public String checkPersonInfo(@Valid jasonWebpage.PersonForm personForm, BindingResult bindingResult) {

        if (bindingResult.hasErrors()) {
            return "form";
        }
        String go = "/result.html";
        return "redirect:/results";
    }
}

[Tolls]

These days the site would be HTML/Javascript, rather than JSP. Or at least mostly that.
So the Javascript on a page makes requests for whatever data the page is expected to show.
There are frameworks for doing this. AngularJS is the current workhorse, but you might want to look at newer ones, like React.

So essentially your site consists of Javascript that makes RESTful calls to your services and uses the results to construct the page.

As for your second part. is there a stack trace on the server?

[Blue2525989]

ah thanks for the explaination, that makes sense. There are some guides on the spring web site for AngularJS. I will check those out.

and this is what the error says

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.
Mon Feb 13 08:26:06 CST 2017
There was an unexpected error (type=Method Not Allowed, status=405).
Request method 'POST' not supported

All I am trying to do is load a simple html file I have saved in a folder named templates. I followed the instructions on the spring web site on how to set everything up, so all my folders are in correct spots. However I wonder that I keep a lot of the html files in a folder called static which is at the same level as templates.

I combined like 3 examples into one so in two of the examples it told me to have a index in static folder. So I did that and built upon that making some pages I can click back and forth between. Then one of the examples had all the html files in the templates folder so I put those ones there and these are the ones that I have problems getting.

[Tolls]

And there's nothing in the server logs?

What's the URL you are hitting?

Stick some debugging in the POST method to see if it even gets there (doesn't look like it to me).

[Blue2525989]

WARN 7772 --- [nio-8080-exec-8] o.s.web.servlet.PageNotFound : Request method 'POST' not supported

Not finding the page. I am going to look into more examples and see if i can't figure it out.

[Tolls]

I'd still put some debugging in there.

log.debug("Request to checkPersonInfo");

Those, right at the start of the method, are immensely useful for simply seeing whether it has reached your code or not.

[Blue2525989]

okay I shall try that. I haven't messed with the log much yet.

[Tolls]

Now is the time to learn.
:)