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ModelAttributes not accessible on jsp


ModelAttributes not accessible on jsp

By : shanu
Date : October 25 2020, 12:12 AM
To fix the issue you can do I'm quoting from an answer I provided before to the problem of EL not working:
code :


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Multiple modelattributes in a JSP with Spring

Multiple modelattributes in a JSP with Spring


By : luki
Date : March 29 2020, 07:55 AM
hop of those help? AFAIK, you can only bind a form with a single object. If you have two classes, then you can create a single class that references the other two classes and then bind with that class.
Spring - form with 2 modelAttributes

Spring - form with 2 modelAttributes


By : Jiroj
Date : March 29 2020, 07:55 AM
it should still fix some issue You can't attach more than one object to the
. However, you can create an explicit model class for the form and attach it.
code :
class UpdateUserFormModel {

  private Updateuser updateuser;

  private Facebook facebook;

  private Twitter twitter;

}
<sf:input type="text" name="firstName" path="updateuser.firstName"/></br>
<sf:input type="text" name="facebook" path="facebook" /> </br>
using multiple modelAttributes to receive 2 objects from JSP

using multiple modelAttributes to receive 2 objects from JSP


By : user3079828
Date : March 29 2020, 07:55 AM
this one helps. Whenever there is such a if-statement that "split" the complete controller method, like yours, I have the feeling that one controller method should been replaced by two methods, one for each case.
The easiest, and most straight forward solution would been using two different URLs.
code :
@RequestMapping(value = "/section/add",
                method = RequestMethod.POST
                params="createGroupSection=false")
@ResponseBody
public boolean addSection(@ModelAttribute("section") Section section) {...}

@RequestMapping(value = "/section/add",
                method = RequestMethod.POST
                params="createGroupSection=true")
@ResponseBody
public boolean addGroupSection(@ModelAttribute("section") Section section) {...}
How to use @ModelAttributes and @SessionAttribute in spring MVC

How to use @ModelAttributes and @SessionAttribute in spring MVC


By : ZEN
Date : March 29 2020, 07:55 AM
I wish this help you It's documented in Spring Framework's documentation:
http://docs.spring.io/spring/docs/current/spring-framework-reference/htmlsingle/#mvc-ann-sessionattrib
code :
@Controller
@SessionAttributes(value = {"user1", "user2"})
public class MyController {
    // ...

    @GetMapping("/page1")
    public String page1(ModelMap model){
        model.put("user", new User());
        return "page1";
    }

    @PostMapping("/page1")
    public String page1Post(@ModelAttribute("user") User user, ModelMap model{
        model.put("user1", user);
        model.put("user", new User());
        return "page2";
    }

    @PostMapping("/page2")
    public String page2Post(@ModelAttribute("user") User user, ModelMap model{
        model.put("user2", user);
        return "page3";
    }
}
How to fix ModelAttributes are return null value?

How to fix ModelAttributes are return null value?


By : user2612802
Date : March 29 2020, 07:55 AM
hop of those help? Try to look here Maybe you have not RequestMapping in your Post method?
P.S
code :
<form action="register" method="post" modelAttribute="user">
<label for="loginid">ID:</label> 
<input type="text" name="loginid">
<label for="password">password :</label>
<input type="password" name="password">
<label for="username">username :</label>
<input type="text" name="username">
<label for="email">e-mail :</label>
<input type="text" name="email">

<input type="submit" name="submit" value="submit"/>
</form>
<form:form method="post" action="/register" modelAttribute="user">
    <form:label path="loginid">ID:</form:label>
    <form:input path="loginid" />

    <form:label path="password">password:</form:label>
    <form:input path="password" />
     ...
    <input type="submit" value="submit" />
</form:form>
public String createUser(@ModelAttribute User user, HttpServletRequest request, Model model) 
public String createUser(@ModelAttribute("user") User user, HttpServletRequest request, Model model)
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