Question

I have this Controller :

@Controller
@RequestMapping("/path/*")
public class MyController {

    @RequestMapping(value = "/", method = RequestMethod.GET)
    public String welcomeHandler(final Model model) {
        // SOME CODE...
    }

    @RequestMapping(params = "reloadPage", value = "/", method = RequestMethod.POST)
    public String reloadPageHandler(final Model model) {
        // SOME CODE...
    }

    @RequestMapping(params = "search", value = "/", method = RequestMethod.POST)
    public String processSubmit(final BindingResult result...)
        // SOME CODE...
    }
}

and this jsp :

<form:form id="SearchFormController" method="post" modelAttribute="SearchFormBean">
    <form:select path="searchCriteria.departmentId">
        <form:options items="${addressDepartmentList}" itemValue="id" itemLabel="name" />
    </form:select>

    <p>
        <button type="submit" name="reloadPage">Reload the page</button>
    </p>

    <form:select path="searchCriteria.cityId">
        <form:options items="${addressCityList}" itemValue="id" itemLabel="name" />
    </form:select>

    <p>
        <button type="submit" name="search">Submit</button>
    </p>
</form:form>

This code works perfectly fine, when I click on the “Reload the page” button, the reloadPageHandler is called.

Now what I want to achieve, is to remove this button and put an onchange event on my jsp like this :

<form:select path="searchCriteria.departmentId" onchange="submit()">
    <form:options items="${addressDepartmentList}" itemValue="id" itemLabel="name" />
</form:select>

The problem here is that when the form is submitted, it’s the “processSubmit” handler that’s called. But I have to call the “reloadPageHandler”.

Any idea on how to do this ? Thanks !

Answer 1

It seems that the reloadPage-parameter is missing. (The former button’s name.)

If you put a hidden field with this name into the form, it should work:

<form:form id="SearchFormController" method="post" modelAttribute="SearchFormBean">
    <input type="hidden" name="reloadPage" value=""/>

    <form:select path="searchCriteria.departmentId" onchange="submit()">
        <form:options items="${addressDepartmentList}" itemValue="id" itemLabel="name" />
    </form:select>

</form:form>

But the problem with this code is still that always the processSubmit-Handler will be called. So a solution could be to change the controller that the reloadPageHandler is only called if reload=true. Then change the onchange to “this.form.reloadPage.value=’true’;submit()”