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Spring Boot does not mapp GraphQL endpoints correctly

Introduction
I have been trying to solve this problem for a long time now. I have searched for awnsers and tried many solutions, which failed. I am using Spring Boot version 3.0.0, and spring-boot-starter-graphql version 3.0.0. I will provide (what i belive to be) all the relevant information to solve this problem.
Files
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.0.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>gorgeousSandwich</groupId>
<artifactId>promotion</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>Promotion Microservice</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>8.0.0.Final</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-graphql</artifactId>
<version>3.0.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webflux</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.graphql</groupId>
<artifactId>spring-graphql-test</artifactId>
<scope>test</scope>
</dependency>
<!-- OPEN API 3 (Swagger) -->
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-ui</artifactId>
<version>1.6.12</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
PromotionController.java
#AllArgsConstructor
#Controller
public class PromotionController {
private static final Logger LOGGER = LoggerFactory.getLogger(PromotionController.class);
private final IPromotionService service;
private final IPromotionMapper mapper;
#MutationMapping
public GraphQLPromotionDTO createPromotion(#Argument PromotionInput promotion) {
try {
PromotionDTO promotionDTO = promotion.toDTO();
LOGGER.trace(String.format("Requesting the creation of a new promotion (%s)", promotionDTO));
promotionDTO = service.createPromotion(promotionDTO);
LOGGER.info("Order successfully created");
return mapper.toGraphQLDTO(promotionDTO);
} catch (Exception e) {
LOGGER.error("Could not create Shop!", e);
return null;
}
}
#QueryMapping
public List<GraphQLPromotionDTO> listAllPromotions() {
System.out.println("Hehehe");
Iterable<PromotionDTO> itr = service.getAll();
List<GraphQLPromotionDTO> l = new ArrayList<>();
itr.forEach(dto -> l.add(mapper.toGraphQLDTO(dto)));
LOGGER.info("Retrieving all promotions");
return l;
}
#QueryMapping
public String health() {
return "All systems Online!";
}
record PromotionInput(Float percentage, String from, String to, String shopId, PromotionType promotionType) {
PromotionDTO toDTO() throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("dd/MM/yyyy");
return new PromotionDTO(null, percentage, format.parse(from), format.parse(to), Long.parseLong(shopId), promotionType);
}
}
}
schema.graphqls
schema {
query: Query
mutation: Mutator
}
type Mutator{
createPromotion (
promotion: PromotionInput
) : GraphQLPromotionDTO
}
type Query{
listAllPromotions : [GraphQLPromotionDTO],
health: String
}
input PromotionInput{
percentage: Float
from: String
to: String
shopId: ID
promotionType: PromotionType
}
enum PromotionType{
GLOBAL,
LOCAL
}
type GraphQLPromotionDTO {
id: ID
percentage : Float
from : String
to : String
shopId : ID
promotionType: PromotionType
}
Promotion.java
package gorgeousSandwich.promotion.Domain;
import gorgeousSandwich.promotion.Shared.domain.patterns.IAggregateRoot;
import gorgeousSandwich.promotion.Shared.domain.patterns.IEntity;
import gorgeousSandwich.promotion.Shared.domain.patterns.IEntityId;
import gorgeousSandwich.promotion.Shared.domain.valueobjects.Percentage;
import gorgeousSandwich.promotion.Shared.domain.valueobjects.TimeOfEffect;
import jakarta.persistence.*;
import org.springframework.data.annotation.Id;
#Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
#Entity
public abstract class Promotion implements IAggregateRoot<PromotionId> {
#EmbeddedId
private PromotionId id;
#Embedded
private TimeOfEffect timeOfEffect;
#Embedded
private Percentage percentage;
#Enumerated
private PromotionType type;
Promotion(TimeOfEffect timeOfEffect, Percentage percentage, PromotionType type) {
this.id = new PromotionId();
this.timeOfEffect = timeOfEffect;
this.percentage = percentage;
this.type=type;
}
Promotion(PromotionId id, TimeOfEffect timeOfEffect, Percentage percentage, PromotionType type) {
this.id = id;
this.timeOfEffect = timeOfEffect;
this.percentage = percentage;
this.type=type;
}
protected Promotion() {
}
#Override
public boolean sameAs(IEntity<? extends IEntityId> otherEntity) {
if (otherEntity instanceof Promotion) {
Promotion otherPromotion = ((Promotion) otherEntity);
return obtainId().id().equals(otherPromotion.obtainId().id());
}
return false;
}
#Override
public PromotionId obtainId() {
return id;
}
public TimeOfEffect getTimeOfEffect() {
return timeOfEffect;
}
public Percentage getPercentage() {
return percentage;
}
public PromotionType getType() {
return type;
}
}
GraphQLPromotionDTO.java
package gorgeousSandwich.promotion.Domain;
import lombok.AccessLevel;
import lombok.AllArgsConstructor;
#AllArgsConstructor(access = AccessLevel.PUBLIC)
public class GraphQLPromotionDTO {
public String id;
public float percentage;
public String from;
public String to;
public String shopId;
public PromotionType promotionType;
}
PromotionType.java
package gorgeousSandwich.promotion.Domain;
public enum PromotionType {
LOCAL,
GLOBAL;
}
Thaks for all the help
What i have tried already
I have tried to:
Match the types of the DTO in the schema to the code
#SchemaMapping instead of #QueryMapping and/or #MutationMapping
Debug any endpoint (but none worked)
Edit
Ok, i have already made progress. I can perform queries but mutations are still not working.

For those who have the same issue as myself, i found the solution by learning how to spell.
Mutator
must change to
Mutation
Result:
schema {
query: Query
mutation: Mutation
}
type Mutation{
createPromotion (
promotion: PromotionInput!
) : GraphQLPromotionDTO
}
type Query{
listAllPromotions : [GraphQLPromotionDTO!]!,
health: String!
}
input PromotionInput{
percentage: Float!
from: String!
to: String!
shopId: ID
promotionType: PromotionType!
}
enum PromotionType{
GLOBAL,
LOCAL
}
type GraphQLPromotionDTO {
id: ID!
percentage : Float!
from : String!
to : String!
shopId : ID
promotionType: PromotionType!
}
PS: Added null verification to each type

Spring Boot GET and POST returning Not Found (CrudReposirory)

Basically what the title says. No errors show in the console so I have no idea what's wrong. I am using CrudRepository. The task is to make a REST API for a game store. I am trying to access localhost:8080/game URL but 404 keeps happening.
Edit: changed #PostMapping() and #GetMapping() to #PostMapping and #GetMapping
GameStoreApplication.java:
package com.game_store.si2;
#SpringBootApplication
#ComponentScan("com.game_store.si2.repository")
public class GameStoreApplication {
public static void main(String[] args) {
SpringApplication.run(GameStoreApplication.class, args);
}
}
GameController.java:
package com.game_store.si2.controller;
#RestController #RequestMapping("/game")
public class GameController {
#Autowired
private GameRepository repository;
#PostMapping
public ResponseEntity<Game> newGame(#RequestBody Game novoGame) {
if(novoGame.getTitulo() != null) {
repository.save(novoGame);
return new ResponseEntity<>(HttpStatus.CREATED);
}
else {
return new ResponseEntity<Game>(novoGame, HttpStatus.UNPROCESSABLE_ENTITY);
}
}
#GetMapping("/{id}")
public ResponseEntity<Game> findGame(#PathVariable int id){
Optional<Game> gameObtido = repository.findById(id);
if(!gameObtido.isPresent()) {
return new ResponseEntity<Game>(HttpStatus.OK);
}
return new ResponseEntity<Game>(HttpStatus.NOT_FOUND);
}
#GetMapping
public Iterable<Game> listGames(){
return repository.findAll();
}
#DeleteMapping("/{id}")
public ResponseEntity<Game> deleteGame(#PathVariable int id){
Game gameObtido = repository.findById(id).orElse(null);
if(gameObtido != null) {
repository.delete(gameObtido);
return new ResponseEntity<Game>(gameObtido, HttpStatus.NO_CONTENT);
}
return new ResponseEntity<Game>(HttpStatus.NOT_FOUND);
}
#PutMapping("/update/{id}")
public ResponseEntity<Game> updateGame(#PathVariable int id,#RequestBody Game game){
Game existeGame = repository.findById(id).orElse(null);
if(existeGame != null) {
existeGame.setImgUrl(game.getImgUrl());
existeGame.setPreco(game.getPreco());
existeGame.setTitulo(game.getTitulo());
repository.save(existeGame);
return new ResponseEntity<Game>(existeGame, HttpStatus.OK);
}
return new ResponseEntity<Game>(HttpStatus.NOT_FOUND);
}
}
Game.java:
package com.game_store.si2.model;
#Entity #Getter #Setter #NoArgsConstructor
public class Game {
#Id #GeneratedValue(strategy = GenerationType.SEQUENCE)
private int id;
private String titulo;
private String ImgUrl;
private double preco;
private int numVendas;
}
GameRepository.java:
package com.game_store.si2.repository;
#RepositoryRestResource(collectionResourceRel = "game", path = "game")
public interface GameRepository extends CrudRepository<Game, Integer> {
}
pom.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.game_store</groupId>
<artifactId>game_store</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>game_store</name>
<description>Projeto de game store de SI2</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>2.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
GET and POST return:
{
"timestamp": "2020-09-10T03:41:47.478+00:00",
"status": 404,
"error": "Not Found",
"message": "",
"path": "/game"
}

You can replace #GetMapping() to #GetMapping and #PostMapping() to #PostMapping
in below method respectively like
#GetMapping
public Iterable<Game> listGames(){
return repository.findAll();
}
#PostMapping
public ResponseEntity<Game> newGame(#RequestBody Game novoGame) {
if(novoGame.getTitulo() != null) {
repository.save(novoGame);
return new ResponseEntity<>(HttpStatus.CREATED);
}
else {
return new ResponseEntity<Game>(novoGame, HttpStatus.UNPROCESSABLE_ENTITY);
}
}

To use default value of GetMapping and PostMapping you can use
#GetMapping
#PostMapping
or
#GetMapping("")
#PostMapping("")

just rename #PostMapping() to #PostMapping

Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javassist/bytecode/ClassFile

I am try to access data mysql in Spring Boot.when i run application.I got this error
Error creating bean with name 'entityManagerFactory' defined in class path resource[org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javassist/bytecode/ClassFile
my code is
Controller
#GetMapping(path="/add")
public #ResponseBody String addNewUser (#RequestParam String name
, #RequestParam String email) {
UserPojo n = new UserPojo();
n.setName(name);
n.setEmail(email);
userRepository.save(n);
return "Saved";
}
Service is
#Service("service")
#Transactional
public class UserService {
#Autowired
private User user;
public void addUser(UserPojo pojo) {
UserEntity userEntity = new UserEntity();
userEntity.setCustomerName(pojo.getCustomerName());
userEntity.setEmail(pojo.getEmail());
user.save(userEntity);
}
}
Dao is
public interface User extends CrudRepository<UserEntity, Integer> {
}
Entity is-
package com.example.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name = "customer")
public class UserEntity {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
#Column
private String customerName;
#Column
private String email;
public String getCustomerName() {
return customerName;
}
public void setCustomerName(String customerName) {
this.customerName = customerName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
My Pojo
public class UserPojo {
private String customerName;
private String email;
public String getCustomerName() {
return customerName;
}
public void setCustomerName(String customerName) {
this.customerName = customerName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
My pom.xml
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>com.example</groupId>
<artifactId>Test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>Test</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- JPA Data (We are going to use Repositories, Entities, Hibernate, etc...) -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- Use MySQL Connector-J -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
application.properties
spring.mvc.view.prefix=/WEB-INF/view/
spring.mvc.view.suffix=.jsp
server.port=8085
server.servlet.context-path=/finance
# Database
spring.datasource.url=jdbc:mysql://localhost:3306/test?
autoReconnect=true&useSSL=false
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
# Hibernate
hibernate.dialect: org.hibernate.dialect.MySQL5Dialect
hibernate.show_sql: true
hibernate.hbm2ddl.auto: create

I have implemented your project. Everything going fine. I am describing step by step. I wrote my pom.xml like this
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.avijit</groupId>
<artifactId>bootproject</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
</dependencies>
<properties>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Then I wrote my main class and created a bean for jsp page.
#SpringBootApplication
public class Main {
public static void main(String[] args) {
SpringApplication.run(Main.class, args);
}
#Bean
public ViewResolver getViewResolver(){
InternalResourceViewResolver resolver = new
InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/jsp/");
resolver.setSuffix(".jsp");
resolver.setViewClass(JstlView.class);
return resolver;
}
}
After this i wrote Controller class like
#Autowired
UserService userService;
#RequestMapping(value="/sample", method= RequestMethod.GET)
public String sample()
{
return "sample";
}
#RequestMapping(value="/sample", method= RequestMethod.POST)
public String dosave(#RequestParam String name, #RequestParam String email)
{
UserPojo n = new UserPojo();
n.setCustomerName(name);
n.setEmail(email);
userService.addUser(n);
return "sample";
}
And edited service class
#Autowired
private User user;
public void addUser(UserPojo pojo) {
UserEntity userEntity = new UserEntity();
userEntity.setCustomerName(pojo.getCustomerName());
userEntity.setEmail(pojo.getEmail());
user.save(userEntity);
}
While copying your code I found that in controller class you made an error n.setName(name); it would be n.setCustomerName(name). And in my property file I wrote like this.
spring.datasource.url =jdbc:mysql://127.0.0.1:3306/InternDatabase
spring.datasource.username = root
spring.datasource.password = 123456
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect
spring.jpa.hibernate.ddl-auto = update
Check updated code and let us know.

404 not found in RestController in Spring Boot

I have a Spring Boot Project with pom.xml like this
<groupId>com.project</groupId>
<artifactId>prj</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>prj</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.11</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
The Application class is like this
#SpringBootApplication
public class PrjApplication {
public static void main(String[] args) {
SpringApplication.run(HqApplication.class, args);
}
}
And I have a RestController where I am trying to do some CRUD Operations like this
#RestController("/register")
public class RegisterController {
#Autowired
private UserRepository userRepository;
#GetMapping("/user/{id}")
public User getUser(#Valid #RequestBody Long id){
User user = userRepository.getOne(id);
return user;
}
#PostMapping("/new")
public User saveUser(#Valid #RequestBody String name,#Valid #RequestBody String email,#Valid #RequestBody String password,#Valid #RequestBody String phone){
System.out.println("savginv user");
User user = new User();
user.setEmail(email);
user.setPassword(password);
user.setName(name);
user.setPhone(phone);
userRepository.save(user);
return user;
}
}
I have made an Entity class; User like this
#Entity
#Table(name = "tbl_users")
public class User {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
Long id;
String name, email, password, phone;
public Long getId() {
return id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
When I try to save a user by calling the post method using PostMan it gives me 404 not found error.
{
"timestamp": "2018-06-23T06:47:14.086+0000",
"status": 404,
"error": "Not Found",
"message": "No message available",
"path": "/prj/register/new"
}
I am using JPARepository to perform Database operations.

/prj isn't part of your controller. Either use a POST request without it (i.e., /register/new), or add it to your controller's mapping:
#RestController("/prj/register")
public class RegisterController {
// rest of the code (no pun intended)

No converter found for return value of type: class java.util.ArrayList (Spring Boot)

I am new to Spring Boot and working on database connectivity. All the related classes are here only main class having run method is not posted.
It is giving me the error of no converter found for ArrayList.
Please help me if I am doing anything wrong.
//Customer.java
package springbootfirstapp.domain;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
#Entity
public class Customer {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name="id")
private int id;
private String name;
private String phone;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public Customer(int id, String name, String phone) {
super();
this.id = id;
this.name = name;
this.phone = phone;
}
public Customer() {
super();
}
}
//CustomerController.java
package springbootfirstapp.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import springbootfirstapp.domain.Customer;
import springbootfirstapp.repo.CustomerRepo;
#RestController
#RequestMapping("/customer")
public class CustomerController {
#Autowired
CustomerRepo rp;
#RequestMapping("/findall")
#ResponseBody
public List<Customer> findall()
{
return rp.findAll();
}
}
//CustomerRepo.java
package springbootfirstapp.repo;
import org.springframework.data.jpa.repository.JpaRepository;
import springbootfirstapp.domain.Customer;
public interface CustomerRepo extends JpaRepository<Customer, Integer> {
}
//pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>SpringBootFirstApp</groupId>
<artifactId>springbootfirstapp</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.5.RELEASE</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEndoing>UTF- 8</project.reporting.outputEndoing>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
STACKTRACE:

Generic Guidelines for such an error is to check for :
No Args Constructor
Getters & Setters
Jackson dependencies
Since first two aren't a problem, Please try adding the below two dependencies and let us know if its working.
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.4.3</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.4.3</version>
</dependency>

Add this dependency in pom.xml
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.1</version>
</dependency>

If I correctly understand your question, you need to add jackson mapper in pom.
Can you try that once and see your converter issue is resolved.

Thankyou everyone for the help...
Issue is resolved by adding Jackson Mapper dependency
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.5.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.5.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.5.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
<version>2.5.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.module</groupId>
<artifactId>jackson-module-jaxb-annotations</artifactId>
<version>2.5.2</version>
</dependency>