Uploading multiple files does not work in spring boot controller

Uploading multiple files does not work in spring boot controller - java

I can upload one file to a spring boot controller like this:
#RequestMapping(value = "/projects",
produces = { "application/json" },
consumes = { "multipart/form-data" },
method = RequestMethod.POST)
public ResponseEntity<Void> upload(#RequestParam(value="file", required=false) MultipartFile files)) {
//
}
But I can not upload multiple files to the similar spring boot controllers:
#RequestMapping(value = "/projects",
produces = { "application/json" },
consumes = { "multipart/form-data" },
method = RequestMethod.POST)
public ResponseEntity<Void> upload(#RequestParam(value="files", required=false) MultipartFile[] files)) {
//
}
#RequestMapping(value = "/projects",
produces = { "application/json" },
consumes = { "multipart/form-data" },
method = RequestMethod.POST)
public ResponseEntity<Void> upload(#RequestParam(value="files", required=false) List<MultipartFile> files)) {
//
}
*The two controllers above have empty list or array when I try to upload files
Do I need some extra configuration in my spring boot to upload multiple files?

Here're my configs for the test project:
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>2.2.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>multipart-demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>multipart-demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</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-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</pluginRepository>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>
MultipartDemoApplication.java
package com.example.multipartdemo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class MultipartDemoApplication {
public static void main(String[] args) {
SpringApplication.run(MultipartDemoApplication.class, args);
}
}
FileUploadController.java
package com.example.multipartdemo;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
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.multipart.MultipartFile;
import java.util.Arrays;
import java.util.stream.Collectors;
#Controller
public class FileUploadController {
#RequestMapping(value = "/projects",
produces = {"application/json"},
consumes = {"multipart/form-data"},
method = RequestMethod.POST)
public ResponseEntity<String> uploadFiles(#RequestParam(value = "files", required = false) MultipartFile[] files) {
try {
String fileNames = Arrays.stream(files)
.map(MultipartFile::getOriginalFilename)
.collect(Collectors.joining(" : "));
return ResponseEntity.status(HttpStatus.OK).body(fileNames);
} catch (Exception e) {
return ResponseEntity.status(HttpStatus.EXPECTATION_FAILED).body("Unable to download files");
}
}
#RequestMapping(value = "/projects",
produces = {"text/plain"},
method = RequestMethod.GET)
public ResponseEntity<String> uploadFiles() {
return ResponseEntity.status(HttpStatus.EXPECTATION_FAILED).body("OK");
}
}
application.properties
spring.servlet.multipart.max-file-size=100KB
spring.servlet.multipart.max-request-size=500KB
After starting application it works as expected:
Only in case of body absence I got the next response, but it's another story of debugging.
So, can you please check your configs? What're the differences with mine?

Related

Spring boot 404 not found

Hello I am struggling to figure out what is my issue. Teacher did this in eclipse. I am on Intelleji. I made a project with Java 17 and the SDK 17 too. Spring boot 3.0.0 m1
It is basic code but when I try to get it working i get error 404. Driving me nuts. If anyone sees something that I am not seeing i would be extremely grateful.
the link i try in postman is as follow: localhost:8081/restws/services/patientservice/patients
which is what the teacher did in eclipse or string tool suite.
I am in intelleji ultimate.
thank you for any help.
my structure goes as follow:
.
└── restws
├── PatientService.java
├── PatientServiceImpl.java
├── RestwsApplication.java
└── model
└── Patient.java
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-M1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.slinky</groupId>
<artifactId>restws</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>restws</name>
<description>restws</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-spring-boot-starter-jaxrs</artifactId>
<version>3.3.7</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</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>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
PatientService.java
package com.slinky.restws;
import com.slinky.restws.model.Patient;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.Path;
import java.util.List;
#Path("/patientservice")
public interface PatientService {
#Path("/patients")
#GET
List<Patient> getPatient();
}
Patient.java from com.slinky.restws.model
package com.slinky.restws.model;
import jakarta.xml.bind.annotation.XmlRootElement;
#XmlRootElement(name = "Patient")
public class Patient {
private long id;
private String name;
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
application.properties
cxf.jaxrs.classes-scan=true
cxf.jaxrs.classes-scan-packages=org.codehaus.jackson.jaxrs, com.slinky.restws
server.servlet.context-path=/restws
server.port=8081
PatientServiceImpl.java
package com.slinky.restws;
import com.slinky.restws.model.Patient;
import org.springframework.stereotype.Service;
import java.util.*;
#Service
public class PatientServiceImpl implements PatientService{
Map<Long, Patient> patients = new HashMap<>();
long currentId = 123;
public PatientServiceImpl() {
init();
}
public void init() {
Patient patient = new Patient();
patient.setId(currentId);
patient.setName("John");
patients.put(patient.getId(), patient);
}
#Override
public List<Patient> getPatient() {
Collection<Patient> results = patients.values();
List<Patient> response = new ArrayList<>(results);
return response;
}
}
main which was created automatically
package com.slinky.restws;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class RestwsApplication {
public static void main(String[] args) {
SpringApplication.run(RestwsApplication.class, args);
}
}

Unable to fetch values from Spring Cloud Config Server to my Config-Client(limits-service)

After days of search over internet and many tries(out of which nothing worked out for me), i am writing here
I have Project- spring-cloud-config-server which has following files(full project can be accessed from https://github.com/AshishBharadwaj94/spring-cloud-config-server.git)
SpringCloudConfigServerApplication.java
application.properties (under folder- resources)
Link Source Folder- git-config-repo which has limits-service's properties files
pom.xml
and Client Config Project- limits-service which has following files(full project can be accessed from https://github.com/AshishBharadwaj94/limits-service.git)
LimitsServiceApplication.java
LimitConfiguration.java
Configuration.java
LimitsConfigurationController.java
bootstrap.properties (under folder- resources)
pom.xml
Also project- https://github.com/AshishBharadwaj94/git-config-repo.git
Project- spring-cloud-config-server is working fine and has the following output
// http://localhost:8888/limits-service/default
{
"name": "limits-service",
"profiles": [
"default"
],
"label": null,
"version": "8dd340030a5c82a11327bf0d2e55ae3b6434240b",
"state": null,
"propertySources": [
{
"name": "file:///D:/Learn-Java/springboot-workspace/git-config-repo//limits-service.properties",
"source": {
"limits-service.minimum": "11",
"limits-service.maximum": "99"
}
}
]
}
but when running Project- limits-service, i have the following output. It is unable to fetch data from spring-cloud-config-server
// http://localhost:8080/limits
{
"minimum": null,
"maximum": null
}
Below are the files Project wise
spring-cloud-config-server
SpringCloudConfigServerApplication.java
#EnableConfigServer
#SpringBootApplication
public class SpringCloudConfigServerApplication {
public static void main(String[] args) {
SpringApplication.run(SpringCloudConfigServerApplication.class, args);
}
}
application.properties
spring.application.name=spring-cloud-config-server
server.port=8888
spring.cloud.config.server.git.uri=file:///D:/Learn-Java/springboot-workspace/git-config-repo/
spring-cloud-config-server/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>2.4.0-M4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.springboot.microservices</groupId>
<artifactId>spring-cloud-config-server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>spring-cloud-config-server</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>2020.0.0-SNAPSHOT</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</pluginRepository>
</pluginRepositories>
</project>
limits-service.properties
limits-service.minimum=11
limits-service.maximum=99
limits-service
LimitsServiceApplication.java
#SpringBootApplication
public class LimitsServiceApplication {
public static void main(String[] args) {
SpringApplication.run(LimitsServiceApplication.class, args);
}
}
LimitConfiguration.java
#Component
public class LimitConfiguration {
private String minimun;
private String maximun;
public LimitConfiguration() {
super();
}
public LimitConfiguration(String minimun, String maximun) {
super();
this.minimun = minimun;
this.maximun = maximun;
}
public String getMinimun() {
return minimun;
}
public void setMinimun(String minimun) {
this.minimun = minimun;
}
public String getMaximun() {
return maximun;
}
public void setMaximun(String maximun) {
this.maximun = maximun;
}
#Override
public String toString() {
return "LimitConfiguration [minimun=" + minimun + ", maximun=" + maximun + "]";
}
}
Configuration.java
#Component
#ConfigurationProperties("limits-service")
public class Configuration {
private String minimum;
private String maximum;
public String getMinimum() {
return minimum;
}
public void setMinimum(String minimum) {
this.minimum = minimum;
}
public String getMaximum() {
return maximum;
}
public void setMaximum(String maximum) {
this.maximum = maximum;
}
}
LimitsConfigurationController.java
#RestController
public class LimitsConfigurationController {
#Autowired
private Configuration configuration;
#GetMapping(path="/limits")
public LimitConfiguration retrieveLimitsFromConfiguration() {
return new LimitConfiguration(configuration.getMinimum(), configuration.getMaximum());
}
}
bootstrap.properties
spring.application.name=limits-service
spring.cloud.config.uri=http://localhost:8888
spring.cloud.config.enabled=true
limits-service/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>2.4.0-M4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.springboot.microservices</groupId>
<artifactId>limits-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>limits-service</name>
<description>Build microservices with spring cloud</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>2020.0.0-SNAPSHOT</spring-cloud.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-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</pluginRepository>
</pluginRepositories>
</project>

Cant connect MySQL database to my spring project (despite all post i have read) [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 2 years ago.
Improve this question
i'am building a small APP, with google api and spring boot, and i need to connect mysql db to my project.
First : all my package are in same places (to avoid this kind of issues TT)
So i first try with the doc exemple ( https://spring.io/guides/gs/accessing-data-mysql/) by cloning the project
and its return me : Failed to obtain JDBC Connection.
I try with my own app and i get this :
Error creating bean with name 'entityManagerFactory' defined in + Failed to obtain JDBC Connection too.
application.properties
spring.jpa.hibernate.ddl-auto=none
spring.datasource.url=jdbc:mysql://localhost:8181/testuser
spring.datasource.username=root
spring.datasource.password=root
spring.jpa.properties.hibernate.dialect =
org.hibernate.dialect.MySQL5Dialect
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
dependencies :
<?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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.devoteam.presales</groupId>
<artifactId>testspringsecu</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>testspringsecu</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf</artifactId>
<version>3.0.11.RELEASE</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.2.3.Final</version>
</dependency>
<dependency>
<groupId>com.google.oauth-client</groupId>
<artifactId>google-oauth-client</artifactId>
<version>1.27.0</version>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring5</artifactId>
<version>3.0.11.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security.oauth.boot</groupId>
<artifactId>spring-security-oauth2-autoconfigure</artifactId>
<version>2.1.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</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>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>js-cookie</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>com.google.api-client</groupId>
<artifactId>google-api-client</artifactId>
<version>1.23.0</version>
</dependency>
<dependency>
<groupId>com.google.oauth-client</groupId>
<artifactId>google-oauth-client-jetty</artifactId>
<version>1.23.0</version>
</dependency>
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-sheets</artifactId>
<version>v4-rev493-1.23.0</version>
</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>
<dependency>
<groupId>com.vaadin.external.google</groupId>
<artifactId>android-json</artifactId>
<version>0.0.20131108.vaadin1</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
Entity :
package com.devoteam.presales.testspringsecu;
import javax.persistence.Entity;
#Entity
public class UsersDevo {
private Integer ID;
private String email;
private String nom;
private String prenom;
private String service;
public Integer getId() {
return ID;
}
public void setId(Integer id) {
this.ID = ID;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getNom() {
return nom;
}
public void setNom(String nom) {
this.nom = nom;
}
public String getPrenom() {
return prenom;
}
public void setPrenom(String prenom) {
this.prenom = prenom;
}
public String getService() {
return service;
}
public void setService(String service) {
this.service = service;
}
}
Repository :
package com.devoteam.presales.testspringsecu;
import com.devoteam.presales.testspringsecu.UsersDevo;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
#Repository
public interface UsersRepo extends CrudRepository<UsersDevo, Long> {
}
test controller :
package com.devoteam.presales.testspringsecu;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
#Controller
#RequestMapping(path = "/demo")
public class TestController {
#Autowired
UsersRepo usersRepo;
#GetMapping(path = "/all")
public #ResponseBody Iterable<UsersDevo> getAllUsers() {
return usersRepo.findAll();
}
}
main
package com.devoteam.presales.testspringsecu;
import java.security.Principal;
import java.util.*;
import org.json.JSONException;
import org.json.JSONObject;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.security.oauth2.provider.OAuth2Authentication;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.ModelAndView;
#SpringBootApplication
#RestController
public class TestspringsecuApplication {
#RequestMapping("/user")
public Principal user(Model model, Principal principal) throws
JSONException {
OAuth2Authentication authentication = (OAuth2Authentication)
principal;
return principal;
}
#GetMapping("/user")
public ModelAndView method() {
System.out.println("icila");
return new ModelAndView("redirect:" + "/");
}
public static void main(String[] args) {
SpringApplication.run(TestspringsecuApplication.class, args);
}
}
I also try a bunch of annotation.
EDIT : i fixe the issue witht the doc exemple with :spring.datasource.url=jdbc:mysql://localhost:8181/testuser?serverTimezone=EST5EDT
but i still have : rg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory'
with my app

I did IT ( after looooog investigation).
And the answer ( for noob like me ) is that your entity must be exactly the same as your table.
my mistake was to forget the #Id
#GeneratedValue(strategy= GenerationType.AUTO) on private Integer ID.
SPring could be painfull some times ... ( often..)
and dont forget ?serverTimezone=EST5EDT after database url.
i hope saving some hours to someone.

Spring and RESTfull ConcurrentModel does not support null attribute value

I m experimenting with Spring and Rest in order to build and Web app for representing a simple list of the cryptocurrencies.
The controller:
package jasmin.merusic.cryptocurrency.controllers;
import jasmin.merusic.cryptocurrency.services.ApiService;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
#Controller
public class DataController {
private final ApiService apiService;
public DataController(ApiService apiService) {
this.apiService = apiService;
}
#RequestMapping({"", "/", "/index","cryptos"})
public String index(Model model){
model.addAttribute("cryptos",apiService.getCrypto(10));
return "index";
}
}
And then i have the services package where i have the interface for the Api and the implementation for this service right here(where i m overriding a method ):
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;
import java.util.List;
#Service
public class ApiServiceImpl implements ApiService{
private RestTemplate restTemplate;
#Autowired
public ApiServiceImpl(RestTemplate restTemplate) {
this.restTemplate = restTemplate;
}
#Override
public List<Crypto> getCrypto(Integer limit) {
CryptoData crypto = restTemplate.getForObject("https://api.coinmarketcap.com/v2/ticker/?limit=" + limit , CryptoData.class);
return crypto.getCryptos();
}
}
Here is the code of The RestTamplateConfig class
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
#Configuration
public class RestTemplateConfig {
#Bean
public RestTemplate restTemplate(RestTemplateBuilder builder){
return builder.build();
}
}
And here is the class where i m trying to map from the API: `
public class CryptoData {
private List<Crypto> data;
public List<Crypto> getCryptos() {
return data;
}
public void setCryptos(List<Crypto> data) {
this.data = data;
}
}
public class Crypto implements Serializable
{
private Integer id;
private String name;
private String symbol;
private String websiteSlug;
private Integer rank;
private Double circulatingSupply;
private Double totalSupply;
private Double maxSupply;
private Quotes quotes;
private Integer lastUpdated;
private final static long serialVersionUID = 362556439034076810L;
//getters and setter
`
My POM File looks 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>jasmin.merusic</groupId>
<artifactId>cryptocurrency</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>cryptocurrency</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.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-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</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>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
The problem is that i cannot bind the data to the POJO and i have a error that is
2018-10-19 10:39:35.251 ERROR 14188 --- [ctor-http-nio-2] .a.w.r.e.DefaultErrorWebExceptionHandler : Failed to handle request [GET http://localhost:8080/index]
java.lang.IllegalArgumentException: ConcurrentModel does not support null attribute value
at org.springframework.util.Assert.notNull(Assert.java:193) ~[spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
at org.springframework.ui.ConcurrentModel.addAttribute(ConcurrentModel.java:75) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
at org.springframework.ui.ConcurrentModel.addAttribute(ConcurrentModel.java:39) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
at jasmin.merusic.cryptocurrency.controllers.DataController.index(DataController.java:20) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
any help? i m a newvie to this and i m following something in order to this.

You are doing right, but the problem might be due to the lack of a proper setter/getter for the data field in the CryptoData class. By "proper" I mean getData() and setData(List<Crypto>).
If you look closer at the JSON snippet you are receiving, you would notice that the structure is a bit different from yours. It's actually a Map<Integer, Crypto>, not a List<Crypto>.
class CryptoData {
private Map<Integer, Crypto> data;
public Map<Integer, Crypto> getData() {
return data;
}
public void setData(Map<Integer, Crypto> data) {
this.data = data;
}
}

Spring Boot - Connect to Neo4j and MySQL datasources

I'm trying to connect to two datasources, MySQL and Neo4j.
I tried following this example but I have different versions of dependencies.
<?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>com.example</groupId>
<artifactId>easy-notes</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>easy-notes</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.M7</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>
<neo4j-ogm.version>3.0.0</neo4j-ogm.version>
<spring-data-releasetrain.version>Kay-RELEASE</spring-data-releasetrain.version>
</properties>
<dependencies>
<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>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-neo4j</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<!-- -->
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j-ogm-bolt-driver</artifactId>
<version>${neo4j-ogm.version}</version>
</dependency>
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j-jdbc-driver</artifactId>
<version>3.0</version>
</dependency>
<!-- -->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>
my DatastoresConfiguration class:
#Configuration
#EnableJpaRepositories(basePackages = "com.example.easynotes.repository.relational")
#EnableNeo4jRepositories(basePackages = "com.example.easynotes.repository.graph")
#EnableTransactionManagement
public class DatastoresConfiguration {
#Bean
public org.neo4j.ogm.config.Configuration configuration(){
return new org.neo4j.ogm.config.Configuration.Builder().uri("bolt://127.0.0.1")
.credentials("neo4j","123456").build();
}
#Bean
public SessionFactory sessionFactory(){
return new SessionFactory(configuration(), "com.example.easynotes.models.graph");
}
#Bean
public Neo4jTransactionManager neo4jTransactionManager(){
return new Neo4jTransactionManager(sessionFactory());
}
#Bean
public Session getSession() {
return neo4jTransactionManager().getSessionFactory().openSession();
}
#Primary
#Bean(name = "dataSource")
#ConfigurationProperties(prefix = "spring.datasource")
public DataSource dataSource() {
return DataSourceBuilder
.create()
.driverClassName("com.mysql.jdbc.Driver")
.build();
}
#Primary
#Bean
#Autowired
public LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource) {
LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
entityManagerFactory.setDataSource(dataSource);
entityManagerFactory.setPackagesToScan("com.example.easynotes.repository.relational");
entityManagerFactory.setJpaDialect(new HibernateJpaDialect());
Map<String, String> jpaProperties = new HashMap<>();
jpaProperties.put("hibernate.connection.charSet", "UTF-8");
jpaProperties.put("spring.jpa.hibernate.ddl-auto", "none");
jpaProperties.put("spring.jpa.hibernate.naming-strategy", "org.springframework.boot.orm.jpa.SpringNamingStrategy");
jpaProperties.put("hibernate.bytecode.provider", "javassist");
jpaProperties.put("hibernate.dialect", "org.hibernate.dialect.MySQL5InnoDBDialect");
jpaProperties.put("hibernate.hbm2ddl.auto", "none");
jpaProperties.put("hibernate.order_inserts", "true");
jpaProperties.put("hibernate.jdbc.batch_size", "50");
entityManagerFactory.setJpaPropertyMap(jpaProperties);
entityManagerFactory.setPersistenceProvider(new HibernatePersistenceProvider());
return entityManagerFactory;
}
#Autowired
#Primary
#Bean(name = "mysqlTransactionManager")
public JpaTransactionManager mysqlTransactionManager(LocalContainerEntityManagerFactoryBean entityManagerFactory)
throws Exception {
return new JpaTransactionManager(entityManagerFactory.getObject());
}
#Autowired
#Bean(name = "transactionManager")
public PlatformTransactionManager transactionManager(Neo4jTransactionManager neo4jTransactionManager,
JpaTransactionManager mysqlTransactionManager) {
return new ChainedTransactionManager(
mysqlTransactionManager,
neo4jTransactionManager
);
}
}
first of all I'm getting an error here
#Autowired
#Primary
#Bean(name = "mysqlTransactionManager")
public JpaTransactionManager mysqlTransactionManager(LocalContainerEntityManagerFactoryBean entityManagerFactory)
throws Exception {
return new JpaTransactionManager(entityManagerFactory.getObject());
}
Could not autowire, no beans of 'LocalContainerEntityManagerFactoryBean' type found
Full project is on github

Change your entityManagerFactory method as below.
#Primary
#Bean
#Autowired
public EntityManagerFactory entityManagerFactory(DataSource dataSource) {
LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
entityManagerFactory.setDataSource(dataSource);
entityManagerFactory.setPackagesToScan("com.example.easynotes.repository.relational");
entityManagerFactory.setJpaDialect(new HibernateJpaDialect());
Map<String, String> jpaProperties = new HashMap<>();
jpaProperties.put("hibernate.connection.charSet", "UTF-8");
jpaProperties.put("spring.jpa.hibernate.ddl-auto", "none");
jpaProperties.put("spring.jpa.hibernate.naming-strategy", "org.springframework.boot.orm.jpa.SpringNamingStrategy");
jpaProperties.put("hibernate.bytecode.provider", "javassist");
jpaProperties.put("hibernate.dialect", "org.hibernate.dialect.MySQL5InnoDBDialect");
jpaProperties.put("hibernate.hbm2ddl.auto", "none");
jpaProperties.put("hibernate.order_inserts", "true");
jpaProperties.put("hibernate.jdbc.batch_size", "50");
entityManagerFactory.setJpaPropertyMap(jpaProperties);
entityManagerFactory.setPersistenceProvider(new HibernatePersistenceProvider());
entityManagerFactory.afterPropertiesSet();
return (EntityManagerFactory) entityManagerFactory.getObject();
}

Develop Reference

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