I am studying spring boot and spring jpa . I was able to successfully read and write into the database, but the problem occurs while updating the data.

There was an unexpected error (type=Method Not Allowed, status=405).
Request method 'GET' not supported
org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'GET' not supported

I am trying to update data of table : Person ( Id, Name , Age) using a html form. It accepts the data, and using spring jpa I am trying to update it in MySQL database.

I am getting the following at console when trying to update the data, after submitting the form

> WARN 5176 --- [nio-8080-exec-1]
> .w.s.m.s.DefaultHandlerExceptionResolver : Resolved
> [org.springframework.web.HttpRequestMethodNotSupportedException:
> Request method 'GET' not supported]

My code is here : updateperson form :

 
    
    
        
        
    
    
    
Enter new details
    

        Id   : 

        Name :

        Age : 

        
    
    
    

PersonRepository.java

package com.example.demo.repository;

import com.example.demo.model.Person;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository
public interface PersonRepository extends CrudRepository {
    List findByName(String name);
    List findByAge(int age);
    List findAll();
}

PersonController.java

    package com.example.demo.controller;

import com.example.demo.model.Person;
import com.example.demo.repository.PersonRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@Controller
public class PersonController {
    @Autowired
    PersonRepository personRepository;


    @GetMapping("update")
    public String updatePerson(){
        System.out.println("update to updateperson html");
        return "updateperson";
    }
    @PutMapping("/updatePerson")
    public String updatePerson(Person person){
        System.out.println("UPDATING TO" + person.getAge()+" : "+person.getName() + " : "+person.getPid());
        personRepository.save(person);
        return "updateperson";
    }  

}

Person.java

package com.example.demo.model;

import org.springframework.stereotype.Component;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;


@Entity
public class Person {
    @Id
    @GeneratedValue
    int pid;

    String name;
    int age;

     public Person() {
    }

    public Person(int pid, String name, int age) {
        this.pid = pid;
        this.name = name;
        this.age = age;
    }

//getter and setters
}

The URL to which I'm sending the request:

localhost:8080/updatePerson?id=4&name=personame&age=34