CODEWITHSUNDEEP
javaspringrestspring-mvc
bagui
bagui

Reputation: 844

How to pass a List<> in REST POST method using spring mvc

I'm trying to pass a List of similar values in the request body of a REST post method using spring mvc. Below is my sample code. Please let me know what is correct way to send the List in requestbody.

@RequestMapping(value = "/userlogin/details", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE, consumes = MediaType.APPLICATION_JSON_VALUE)
@ResponseBody
public ResponseEntity<String> insertLoginDetails(
        @RequestParam("username") String userName,
        @RequestBody List<String> listOfID) {
    return eventAnalyzerHelper.insertUserLoginDetails(userName,
            listOfID);
}

Thanks

Upvotes: 4

Views: 21310

Answers (2)

Khush
Khush

Reputation: 853

You will need to wrap the List in an Object. Its better designed that way. You could make this object generic and reuse it multiple times in other controllers if needed. Just be aware that you have to follow the same structure when constructing the object in the calling system.

@RequestMapping(value = "/", method = RequestMethod.POST)
public String addFruits(@RequestBody ListWrapper fruits) {
 // ...
}

Upvotes: 0

Ankur Singhal
Ankur Singhal

Reputation: 26057

This example might help you

Each text input has the same name fruits:

<form method="post">
  Fruit 1: <input type="text" name="fruits"/><br/>
  Fruit 2: <input type="text" name="fruits"/><br/>
  Fruit 3: <input type="text" name="fruits"/><br/>
  <input type="submit"/>
</form>

On your controller’s handler method, you can obtain the list of all fruit names by binding it like this:

@RequestMapping(value = "/", method = RequestMethod.POST)
public String addFruits(@RequestParam("fruits") List<String> fruits) {
  // ...
}

Basically Spring handles on its own, if you have multiple fields with same path/name, it automatically tries to cast it into Array or List.

Upvotes: 6

Related Questions