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Spring MVC Preview

I have the following task: implement a “preview” using Spring MVC. And it will be good to know the best way to implement it:

The task is straightforward 1. Fill out a new form and save this form in the database: To do this on the jsp page, we have the Spring form, we transfer it from the controller and save it. 2. Edit the data of a certain form: So, for this, we pass the identifier of the object to the controller, the controller reads the necessary data from the database → The user has the ability to edit this and save it to the database again.

But it seems that there is no direct mechanism for implementing "preview".

As an example: we have a form, and the user has the opportunity to add the necessary values ​​to the form, and then we need to show how this data (added by the user) will look on a separate screen (we perform some data manipulation and diplaying as this data will look for different tools).

In the code we have the following situation:

  • In the controller for preview, we pass our model:

    @RequestMapping (value = "/ preview", method = RequestMethod.POST) public String preview (@ModelAttribute ("form") SomeForm form) {return "preview"; }


and on preview.jsp we have the opportunity to do it accordingly:

 <div class="preview">
  <div id="1">${form.field1}</div>
  <div id="2">${form.field2}</div>
 </div>

And on this jsp page we have no form. To get back to editing the page, we need to pass the form object, because our controller requires:

@RequestMapping(value = "/admin/save", method = RequestMethod.POST)
public String save(@ModelAttribute("form") SomeForm form ){

jsp.

+4
2

...
@RequestMapping(value = "/admin/preview", method = RequestMethod.POST)
public ModelAndView preview(@ModelAttribute("form") SomeForm form ){
    model = new ModelAndView();
    model.addObject("form", form);
    model.setViewName("jspPath")
    return model;
}
@RequestMapping(value = "/admin/save", method = RequestMethod.POST)
public String save(@ModelAttribute("form") SomeForm form ){
...
}

jsp javascript; -)

+1

hidden inputs. submit save preview db.

0

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