如何将ajax中的FormData和JSON对象传递给Spring MVC Controller？

<form id="myForm">
  <input type="text" name="name" />
  <input type="text" name="age" />
  <button type="button" onclick="submitForm()">Submit</button>
</form>

<script>
function submitForm() {
  var formData = new FormData(document.getElementById("myForm"));
  var jsonData = JSON.stringify(Object.fromEntries(formData));

  $.ajax({
    url: "/example",
    type: "POST",
    data: jsonData,
    contentType: "application/json",
    success: function(response) {
      // 处理响应结果
    }
  });
}
</script>

@Controller
public class ExampleController {

  @PostMapping("/example")
  @ResponseBody
  public String handleRequest(@RequestParam String jsonData) {
    // 将JSON字符串转换为Java对象
    ObjectMapper objectMapper = new ObjectMapper();
    try {
      ExampleData exampleData = objectMapper.readValue(jsonData, ExampleData.class);
      // 进行业务处理
      // ...
      return "Success";
    } catch (IOException e) {
      e.printStackTrace();
      return "Error";
    }
  }
}