Spring Boot full REST CRUD example - spring

Question

Does anyone have a full spring boot REST CRUD example? The spring.io site just has a RequestMapping for GET. I'm able to get POST and DELETE working but not PUT.
I suspect it's how I'm trying to get the params where the disconnect is, but I have not seen an example where someone is performing an update.
I'm currently using the SO iPhone app so I can't paste my current code. Any working examples would be great!

Answer 1

As you can see I have implemented two way to update.
The first one will receive a json, and the second one will receive the cusotmerId in the URL and json also.
#RestController
#RequestMapping("/customer")
public class CustomerController {
#RequestMapping(value = "/{id}", method = RequestMethod.GET)
public Customer greetings(#PathVariable("id") Long id) {
Customer customer = new Customer();
customer.setName("Eddu");
customer.setLastname("Melendez");
return customer;
}
#RequestMapping(value = "/", method = RequestMethod.GET)
public List<Customer> list() {
return Collections.emptyList();
}
#RequestMapping(method = RequestMethod.POST)
public void add(#RequestBody Customer customer) {
}
#RequestMapping(method = RequestMethod.PUT)
public void update(#RequestBody Customer customer) {
}
#RequestMapping(value = "/{id}", method = RequestMethod.PUT)
public void updateById(#PathVariable("id") Long id, #RequestBody Customer customer) {
}
#RequestMapping(value = "/{id}", method = RequestMethod.DELETE)
public void delete() {
}
class Customer implements Serializable {
private String name;
private String lastname;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
public String getLastname() {
return lastname;
}
}
}

Answer 2

An alternative update returns ResponseEntity object.
#RestController
#RequestMapping("/fruits")
public class FruitController {
private final Logger LOG = LoggerFactory.getLogger(FruitController.class);
#Autowired
private FruitService fruitService;
#RequestMapping(method = RequestMethod.GET)
public ResponseEntity<List<Fruit>> getAll(#RequestParam(value = "offset", defaultValue = "0") int index,
#RequestParam(value = "numberOfRecord", defaultValue = "10") int numberOfRecord) {
LOG.info("Getting all fruits with index: {}, and count: {}", index, numberOfRecord);
List<Fruit> fruits = fruitService.getAll(index, numberOfRecord);
if (fruits == null || fruits.isEmpty()) {
return new ResponseEntity<List<Fruit>>(HttpStatus.NO_CONTENT);
}
return new ResponseEntity<List<Fruit>>(fruits, HttpStatus.OK);
}
#RequestMapping(value = "{id}", method = RequestMethod.GET)
public ResponseEntity<Fruit> get(#PathVariable("id") int id) {
LOG.info("Getting fruit with id: {}", id);
Fruit fruit = fruitService.findById(id);
if (fruit == null) {
return new ResponseEntity<Fruit>(HttpStatus.NOT_FOUND);
}
return new ResponseEntity<Fruit>(fruit, HttpStatus.OK);
}
#RequestMapping(method = RequestMethod.POST)
public ResponseEntity<Void> create(#RequestBody Fruit fruit, UriComponentsBuilder ucBuilder) {
LOG.info("Creating fruit: {}", fruit);
if (fruitService.exists(fruit)) {
return new ResponseEntity<Void>(HttpStatus.CONFLICT);
}
fruitService.create(fruit);
HttpHeaders headers = new HttpHeaders();
headers.setLocation(ucBuilder.path("/fruit/{id}").buildAndExpand(fruit.getId()).toUri());
return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
}
#RequestMapping(value = "{id}", method = RequestMethod.PUT)
public ResponseEntity<Fruit> update(#PathVariable int id, #RequestBody Fruit fruit) {
LOG.info("Updating fruit: {}", fruit);
Fruit currentFruit = fruitService.findById(id);
if (currentFruit == null) {
return new ResponseEntity<Fruit>(HttpStatus.NOT_FOUND);
}
currentFruit.setId(fruit.getId());
currentFruit.setName(fruit.getName());
fruitService.update(fruit);
return new ResponseEntity<Fruit>(currentFruit, HttpStatus.OK);
}
#RequestMapping(value = "{id}", method = RequestMethod.DELETE)
public ResponseEntity<Void> delete(#PathVariable("id") int id) {
LOG.info("Deleting fruit with id: {}", id);
Fruit fruit = fruitService.findById(id);
if (fruit == null) {
return new ResponseEntity<Void>(HttpStatus.NOT_FOUND);
}
fruitService.delete(id);
return new ResponseEntity<Void>(HttpStatus.OK);
}
}
From Spring MVC RESTFul Web Service CRUD Example

Answer 3

I have prepared a set of tutorials on Spring Boot CRUD Operations. Following are the content of tutorials:
How to create Spring Boot Project using Spring Tool Suite
How to implement GET & POST method in spring boot restful web service
How to implement PUT & DELETE method in spring boot restful web service
Integrate PostgreSQL database using spring boot JPA with spring boot restful web service
Use of CURL commands
Youtube Tutorials:
Spring Boot Restful Web Service Tutorial | Tutorial 1 -
Introduction
Spring Boot Restful Web Services CRUD Example GET & POST | Tutorial - 2
Spring boot CRUD Operations example PUT & DELETE | Tutorial - 3
Spring Boot JPA | In 5 Simple Steps Integrate PostgreSQL Database | Tuorial - 4
Visit Blog for more details.

Answer 4

You can get my full RESTful server and client app using SpringBoot at Spring RESTFul Examples at github

Answer 5

package com.controllers;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;
import com.cats.hcm.bussinessObjects.Address;
import com.cats.hcm.bussinessObjects.Employee;
import com.cats.hcm.bussinessObjects.EmployeeBO;
import com.cats.hcm.bussinessObjects.MaritalStatus;
import com.cats.hcm.bussinessObjects.State;
import com.cats.hcm.repository.EmployeeRepositoryImpl;
import com.cats.hcm.repository.MaritalStatusRepositoryImpl;
import com.cats.hcm.repository.Repository;
import com.cats.hcm.repository.StateRepositoryImpl;
import com.cats.hcm.services.EmployeeServiceImpl;
import com.google.gson.Gson;
#Controller
#RequestMapping("/newemployee")
public class NewEmployeeController {
private static final Logger logger = LoggerFactory.getLogger(Repository.class);
#Autowired
Repository repository;
#Autowired
StateRepositoryImpl stateRepositoryImpl;
#Autowired
MaritalStatusRepositoryImpl maritalStatusRepositoryImpl;
#Autowired
EmployeeRepositoryImpl employeeRepositoryImpl;
#Autowired
EmployeeServiceImpl employeeServiceImpl;
#RequestMapping(value="/save", method=RequestMethod.POST)
public #ResponseBody String addEmployee(#RequestBody EmployeeBO employeeBO, BindingResult bindingResult) throws SecurityException, ClassNotFoundException, IllegalArgumentException, IllegalAccessException, IOException {
logger.info("==========="+new Gson().toJson(employeeBO));
logger.info("========Employee ID========"+employeeBO.getEmployeeId());
repository.addToDataBase(employeeBO);
String msg="Success";
return msg;
}
#RequestMapping(value="/update", method=RequestMethod.POST)
public #ResponseBody String updateEmployee(#RequestBody EmployeeBO employeeBO, BindingResult bindingResult) throws SecurityException, ClassNotFoundException, IllegalArgumentException, IllegalAccessException, IOException {
logger.info("==========="+new Gson().toJson(employeeBO));
logger.info("========Employee ID========"+employeeBO.getEmployeeId());
//Deleting Existing Employee
Boolean isDeleted = employeeServiceImpl.deleteEmployeeDetails(employeeBO.getEmployeeId());
if(isDeleted) {
repository.addToDataBase(employeeBO);
}
String msg="Success";
return msg;
}
#RequestMapping("/employeeData")
public #ResponseBody List<Employee> getEmployeeDataTablePage() {
logger.info("======getEmployeeDataTablePage======");
List<Employee> employeeList = employeeRepositoryImpl.readAll();
logger.info("========EmployeeList========="+new Gson().toJson(employeeList));
return employeeList;
}
#RequestMapping("/modifyPage")
public #ResponseBody List<Employee> getEmployeeModifyPage(#RequestParam("employeeId") String employeeId) {
logger.info("========getEmployeeModifyPage====EmployeeID:===="+employeeId);
//List<State> stateList = stateRepositoryImpl.readAll();
//List<MaritalStatus> maritalStatusList = maritalStatusRepositoryImpl.readAll();
//model.addAttribute("stateList", stateList);
//model.addAttribute("maritalStatusList", maritalStatusList);
List<Employee> employeeList = employeeRepositoryImpl.readAll();
logger.info("========employeeList:===="+employeeList);
EmployeeBO employeeBO = employeeServiceImpl.getEmployeeBO(employeeId);
logger.info("========getEmployeeModifyPage====EmployeeBO:===="+employeeBO);
return employeeList;
//return new ModelAndView("apps-mod-employee", "employee", employeeBO);
}
#RequestMapping("/delete")
public #ResponseBody String deleteEmployee(#RequestParam("employeeId") String employeeId) {
logger.info("========deleteEmployee===EmployeeID:===="+employeeId);
//employeeRepositoryImpl.delete(employeeServiceImpl.getEmployeeBO(employeeId));
Boolean isDeleted = employeeServiceImpl.deleteEmployeeDetails(employeeId);
if(isDeleted) {
logger.info("========Employee Record Deleted===EmployeeID:===="+employeeId);
}
return "redirect:/employee/employeeDataTable";
}
/*#RequestMapping("/employeeDataByEmpId")
public String getEmployeeAddPage(Map<String, Object> model) {
public ModelAndView getEmployeeDataByEmpId(ModelMap model,HttpServletRequest request, HttpServletResponse response) {
logger.info("======getEmployeeDataByEmpId======");
String EmployeeID=request.getParameter("empId");
Employee employee = employeeRepositoryImpl.read(EmployeeID);
logger.info("========Employee========="+new Gson().toJson(employee));
model.addAttribute(new EmployeeBO());
model.addAttribute("employeeByEmpId", employee);
//return "apps-add-employee";
//return new ModelAndView("apps-add-employee");
return new ModelAndView("apps-employee", "employee", new EmployeeBO());
}*/
}