How do I pass String input from a webpage to @RestController as a Java object?

Question

My question is very basic.

I have the following html:

<form action="/login" method="GET">
  <div>
    Id: <input type="text" name="id" value="id"/>
    Name:  <input type="text" name="name" value="name"/>
  </div>
    <button>Login</button>
 </form>

And the following @GetMapping method to which I want to connect:

 @GetMapping("/login")
  public String someLogin(LoginObject obj, HttpServletRequest request) {
    //do something
  }

LoginObject is composed from two fields: id and name, which I am taking from the UI. How do I convert two strings to my LoginObject and then pass it to the @RestController

@Taplar I edited my question as per your comment

sammy333
– sammy333

2018-11-01 16:49:20 +00:00
Commented Nov 1, 2018 at 16:49 — sammy333
– sammy333, Commented Nov 1, 2018 at 16:49

Habil · Accepted Answer · 2018-11-01 16:49:16Z

2

First of all you need to decide form method (POST/GET). Than annotate your rest controller. Here is the small example for you;

<form action="/demo/add" method="get">
    <label>Username</label><input type="text" id="username" name="username"> 
    <label>Email</label><input type="email" id="email" name="email">
    <button>Send</button>
</form>

And Rest Controller;

@RestController
@RequestMapping(path="/demo")
public class WebController {

@Autowired
private UserRepository userRepository;

@GetMapping(path="/add")
public @ResponseBody String addUser(@RequestParam String username, @RequestParam String email) {
    User u = new User();
    u.setUsername(username);
    u.setEmail(email);
    userRepository.save(u);
    return "SUCCESS!";
}

}

answered Nov 1, 2018 at 16:49

Habil

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