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Consider defining a bean of type 'com.example.filter.FilterDao' in your configuration

I am trying to connect spring boot application with MySQL for that I have created a interface with name FilterDao which extend JpaRepository class. but whenever I try to make object of implemented class in Service I got this error "Consider defining a bean of type 'com.example.filter.FilterDao' in your configuration" as I am new to spring boot I don't understand this error.
FilterApplication.java
package com.example.filter;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
#SpringBootApplication(exclude = {DataSourceAutoConfiguration.class })
public class FilterApplication {
public static void main(String[] args) {
SpringApplication.run(FilterApplication.class, args);
}
}
FilterDao.java
package com.example.filter;
import com.example.filter.Filter;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.domain.Example;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.repository.query.FluentQuery;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
//#Configuration
public interface FilterDao extends JpaRepository<Filter, Integer> {
}
FilterService.java
package com.example.filter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
#Service
public class FilterService {
#Autowired
private FilterDao filterDao;
public List<Filter> getData() {
System.out.println("----------------------HERE-------------");
return filterDao.findAll();
}
}
FilterConnector.java
package com.example.filter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
#RestController
public class FilterConnector {
#Autowired
private FilterService filterService;
#GetMapping("/home")
public List<Filter> home()
{
return this.filterService.getData();
}
}
Project Structure

Annotate FilterDao with #Repository

Seems spring has not created bean for FilterDao repository and you are trying to use that`
#Autowired
private FilterDao filterDao;`
There might different reasons for this exception. Please try the below solution.
Use #EnableJpaRepositories(basePackages = "com.example.filter") with your FilterApplication class.
Use #ComponentScan(basePackages = "com.example.*") with FilterApplication class
Use #Repoitory annotation with FilterDao interface.
Hope this helps. For more details check the below tutorial.
https://javatute.com/jpa/consider-defining-a-bean-of-type-in-your-configuration/

Get entries with Different Data Types in a Property Spring Boot/MongoDB Repository

I've been going round and round on this problem for a couple of weeks. So, there's this project where I should get all entries from a SpringBoot Backend (RestAPI) from MongoDB repository.
How my Backend looks like
My lecturers have given us a database in MongoDB to work with. We are not allowed to change anything. Only reading from it is allowed. To simplify the problem, let's just say there are two columns. On one column, there are multiple entries with multiple data types.
This is how the table would look like in MongoDB Compass:
_id (ObjectID) | Number (Mixed)
60ab1 | 104 // int
60ab2 | 103 // int
60ab3 | "102,3" // string, this is where the problem begins
Here's the class model Example.java
package com.project.api.model;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
import java.util.Date;
import lombok.Getter;
import lombok.Setter;
#Getter
#Setter
#Document
public class Example {
#Id
private String _id;
private Integer Number; //This is where the problem begins
}
Here's the Repository ExampleRepository.java
package com.project.api.repository;
import com.project.api.model.Example;
import org.json.JSONObject;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.data.mongodb.repository.Query;
import org.springframework.stereotype.Repository;
import java.util.List;
import java.util.Optional;
#Repository
public interface ExampleRepository extends MongoRepository<Example,String>{
}
Here's the Service ExampleService.java
package com.project.api.service;
import ch.qos.logback.core.encoder.EchoEncoder;
import com.project.api.model.Example;
import com.project.api.repository.ExampleRepository;
import com.project.api.exception.EntityNotFoundException;
import com.fasterxml.jackson.databind.util.JSONPObject;
import org.json.JSONObject;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.data.mongodb.core.mapping.Field;
import org.springframework.data.mongodb.core.query.UntypedExampleMatcher;
import org.springframework.stereotype.Service;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.MongoTemplate;
import lombok.RequiredArgsConstructor;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.*;
#Service
#RequiredArgsConstructor
public class ExampleService {
#Autowired
private final ExampleRepository exampleRepository;
private int i;
String myString;
public List<Example> getAllExample()
{
return exampleRepository.findAll();
}
}
And here's the Controller ExampleController.java
package com.project.api.controller;
import com.project.api.model.Example;
import com.project.api.service.ExampleService;
import com.fasterxml.jackson.databind.util.JSONPObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.json.JSONObject;
import lombok.RequiredArgsConstructor;
#RestController
#RequestMapping(value = "/api")
#RequiredArgsConstructor
public class ExampleController {
#Autowired
private final ExampleService exampleService;
#GetMapping("/all")
public List<Example> getAllExample(#RequestParam(required = false) String ORT)
{
return exampleService.getAllExample();
}
}
The Problem
The build and the connection to MongoDB was ok, but when I tried to test the API in localhost:8080/api/all, there is an error in the terminal:
java.lang.NumberFormatException: For input string: "102,3"
...
Based on my educated guess, it should be caused by a contradiction between the int type on the model and the string type on the database entry. Again, we are not allowed to modify the entries of database
Question
Are there any way that I could extract entries from MongoDB with different data types on a property with Spring Boot?
Another Paraphrase of the question: are there any way to extract the database entries in MongoDB as raw JSON?
Thank you :)

you can replace the data type from Integer to String and add new method to get list Integer to your entity (convert String to Integer):
public List<Interger> getListNumber(){
return Arrays.stream(this.Number.split(",")).map(number -> Integer.valueOf(number)).collect(Collectors.toList());
}
And please reading java code conventions

How to wire classes and objects in SpringBoot

Have SpringBoot Java app with different classes. I am not able to inject the dependencies and initialize/access the object of one class into another . Have seen the spring doc and used the annotations (#component,#Autowired etc. ), still there is an issue.
following are the classes.
Main Class ()
package com.test;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.stereotype.Component;
#SpringBootApplication
public class CostmanagementApplication {
public static void main(String[] args) {
SpringApplication.run(CostmanagementApplication.class, args);
}
}
Controller class
package com.test;
import javax.swing.text.rtf.RTFEditorKit;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
#Component
#Controller
public class HighChartsController {
#Autowired
private RequestToken rt;
#GetMapping("/costdata")
public static String customerForm(Model model) {
//here not able to access the getToken() method
model.addAttribute("costdata", new CostDataModel());
return "costdata";
}
}
RequestToken Class
package com.test;
import java.io.IOException;
import java.net.URI;
import java.net.URLEncoder;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpRequest.BodyPublishers;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandlers;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
import java.util.HashMap;
import java.util.stream.Collectors;
import org.json.JSONObject;
import org.springframework.stereotype.Component;
#Component
public class RequestToken {
public String getToken() throws IOException, InterruptedException {
// TODO Auto-generated method stub
// code to get the token
return token;
}
}
now eventhough , I have all annotation in place , not getting why the getToken() method is not accessible in controller class using rt object. please suggest

Okay, let's go in order.
First of all, all the annotations #Service, #Controller and #Repository are specifications from #Component, so you don't need to specify #Component and #Controller in your HighChartsController.
Actually, if you check what the annotation #Controller definition is, you'll find this:
#Component
public #interface Controller {
...
}
Secondly, I don't really know what do you mean with that you aren't able to access the getToken() method, but as you wrote it seems you tried to access to that method as an static method.
You're injecting the object, so you use the methods of the objects like in plain Java: rt.getToken(). The only difference is that the RequestToken object will be already initialized at the moment you call it.
package com.test;
import javax.swing.text.rtf.RTFEditorKit;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
#Controller
public class HighChartsController {
#Autowired
private RequestToken rt;
#GetMapping("/costdata")
public static String customerForm(Model model) {
String token = rt.getToken();
...
model.addAttribute("costdata", new CostDataModel());
return "costdata";
}
}

Mapping two #GetMapping to same #RestController into Spring Boot

I need to mapping two GET methods look like:
GET /tickets - Retrieves a list of tickets
GET /tickets/12 - Retrieves a specific ticket
But when I mapped this, the Spring got confused!
When I hit http://localhost:8080/tickets in the Chrome, the result on server is:
DefaultHandlerExceptionResolver : Resolved [org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'java.lang.Long'; nested exception is java.lang.NumberFormatException: For input string: "tickets"]
When I hit http://localhost:8080/tickets/12 in the Chrome, the result on server is:
QueryTranslatorFactoryInitiator : HHH000397: Using ASTQueryTranslatorFactory
My Spring controller is:
package wendelsilverio.api.ticket;
import java.util.List;
import java.util.Optional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
#RestController("tickets")
public class TicketController {
#Autowired
private TicketRepository repository;
#GetMapping
public List<TicketEntity> getTickets() {
return repository.findAll();
}
#GetMapping("/{id}")
public Optional<TicketEntity> getTicket(#PathVariable("id") Long id) {
return repository.findById(Long.valueOf(id));
}
}
My unit test is:
package wendelsilverio.api.ticket;
import static org.hamcrest.CoreMatchers.is;
import static org.mockito.BDDMockito.given;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import java.util.Arrays;
import java.util.Optional;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
#SpringBootTest
#AutoConfigureMockMvc
#RunWith(SpringRunner.class)
public class TicketControllerRestfulTest {
#Autowired
private MockMvc mockMvc;
#MockBean
private TicketController mockTicketController;
#Test
public void getTickets() throws Exception {
given(mockTicketController.getTickets())
.willReturn(Arrays.asList(new TicketEntity(1L, "First ticket"), new TicketEntity(2L, "Second ticket")));
mockMvc.perform(get("tickets").contentType(MediaType.APPLICATION_JSON)).andExpect(status().isOk())
.andExpect(jsonPath("$[0].content", is("First ticket")))
.andExpect(jsonPath("$[1].content", is("Second ticket")));
}
#Test
public void getTicket12() throws Exception {
Optional<TicketEntity> twelveTicket = Optional.of(new TicketEntity(12L, "Twelve ticket"));
given(mockTicketController.getTicket(12L)).willReturn(twelveTicket);
mockMvc.perform(get("tickets/12").contentType(MediaType.APPLICATION_JSON)).andExpect(status().isOk())
.andExpect(jsonPath("$.id", is(12L))).andExpect(jsonPath("$.content", is("Twelve ticket")));
}
}
I'm using Java 11 and Spring Boot 2.1.6

Use
#RestController
#RequestMapping("/tickets")
...
#GetMapping
...
#GetMapping("{id}")
In your code
1) #RestController("tickets") means 'create bean named "tickets"'
2) second URL (#GetMapping("/{id}")) tells 'put ID at root' (http://localhost:8080/ID) - so controller cannot convert 'tickets' to long.

Cannot resolve .andExpect() method even after implementing Stackoverflow answer

I am aware a question with the exact same title exists but the answer doesn't help me any further.
I am using WebMvcTest to test my controller class. However when it comes to comparing the result using .andExpect, my IDEA (intellij) can't resolve it.
The question with the same title as this one's solution is included in my imports and is unused. I also looked at the spring docs and used the 2 implements needed.
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
Below you will find my entire class and in this case all my imports.
package be.pxl.backend.restapi;
import be.pxl.backend.restapi.controller.UserController;
import be.pxl.backend.restapi.domain.User;
import be.pxl.backend.restapi.manager.UserManager;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import static org.hamcrest.Matchers.*;
import static org.mockito.BDDMockito.given;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
//stackoverflow try == unused
import org.springframework.test.web.servlet.ResultActions;
#RunWith(SpringRunner.class)
#WebMvcTest(UserController.class)
public class UserControllerIntegrationTest {
#Autowired
private MockMvc mockMvc;
#MockBean
private UserManager userManager;
#Test
public void givenUser_WhenGetUser_ThenReturnUser() throws Exception{
User bjorn = new User();
bjorn.setUsername("Bjorn");
bjorn.setPassword("Wachtwoord");
bjorn.setEmail("test#email.be");
given(userManager.getUserById(1L)).willReturn(bjorn);
mockMvc.perform(get("/user/1")
.contentType(MediaType.APPLICATION_JSON)
.andExpect(status().isOk())
.andExpect(jsonPath("$", hasSize(1)))
.andExpect(jsonPath("$[0].username", is(bjorn.getUsername()))));
}
}

First of all, according to the Checkstyle, you should avoid star imports.
Secondly, you have misplaced two closing parentheses, one in contentType() and the other one in the last call of andExpect(). Below is a working code.
imports:
import static org.hamcrest.Matchers.hasSize;
import static org.hamcrest.Matchers.is;
import static org.mockito.BDDMockito.given;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import be.pxl.backend.restapi.controller.UserController;
import be.pxl.backend.restapi.domain.User;
import be.pxl.backend.restapi.manager.UserManager;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
Note the imports are ordered as per Google Java Style.
mock test:
mockMvc.perform(get("/user/1")
.contentType(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(jsonPath("$", hasSize(1)))
.andExpect(jsonPath("$[0].username", is(bjorn.getUsername())));