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direct_x_34

•Created by direct_x_34 on 11/22/2024 in #java-help

Docker Issue in Spring Boot with Couchbase

I try to run my app as Spring Boot with Couchbase on Docker Here is my docker-compose.yml

version: '3.9'
services:
  couchbase:
    image: couchbase:latest
    container_name: couchbase
    ports:
      - 8091:8091
      - 8092:8092
      - 8093:8093
      - 8094:8094
      - 11210:11210
    environment:
      COUCHBASE_ADMINISTRATOR_USERNAME: ${COUCHBASE_USERNAME:-Administrator}
      COUCHBASE_ADMINISTRATOR_PASSWORD: ${COUCHBASE_PASSWORD:-123456}
      COUCHBASE_BUCKET: ${COUCHBASE_BUCKET:-todo_list}
      COUCHBASE_AUTO_INDEX: true
    volumes:
      - ~/couchbase/node1:/opt/couchbase/var
    healthcheck:
      test: [ "CMD", "curl", "-f", "http://localhost:8091/ui/index.html" ]
      interval: 30s
      timeout: 10s
      retries: 5
    networks:
      - my_network

  todowithcouchbase:
    build: .
    container_name: todowithcouchbase
    ports:
      - 2323:2323
    depends_on:
      couchbase:
        condition: service_healthy
    environment:
      COUCHBASE_BUCKET: ${COUCHBASE_BUCKET:-todo_list}
      COUCHBASE_USER: ${COUCHBASE_USERNAME:-Administrator}
      COUCHBASE_PASSWORD: ${COUCHBASE_PASSWORD:-123456}
      COUCHBASE_PORT: 8091
      COUCHBASE_HOST: "couchbase"
    networks:
      - my_network

networks:
  my_network:
    driver: bridge

version: '3.9'
services:
  couchbase:
    image: couchbase:latest
    container_name: couchbase
    ports:
      - 8091:8091
      - 8092:8092
      - 8093:8093
      - 8094:8094
      - 11210:11210
    environment:
      COUCHBASE_ADMINISTRATOR_USERNAME: ${COUCHBASE_USERNAME:-Administrator}
      COUCHBASE_ADMINISTRATOR_PASSWORD: ${COUCHBASE_PASSWORD:-123456}
      COUCHBASE_BUCKET: ${COUCHBASE_BUCKET:-todo_list}
      COUCHBASE_AUTO_INDEX: true
    volumes:
      - ~/couchbase/node1:/opt/couchbase/var
    healthcheck:
      test: [ "CMD", "curl", "-f", "http://localhost:8091/ui/index.html" ]
      interval: 30s
      timeout: 10s
      retries: 5
    networks:
      - my_network

  todowithcouchbase:
    build: .
    container_name: todowithcouchbase
    ports:
      - 2323:2323
    depends_on:
      couchbase:
        condition: service_healthy
    environment:
      COUCHBASE_BUCKET: ${COUCHBASE_BUCKET:-todo_list}
      COUCHBASE_USER: ${COUCHBASE_USERNAME:-Administrator}
      COUCHBASE_PASSWORD: ${COUCHBASE_PASSWORD:-123456}
      COUCHBASE_PORT: 8091
      COUCHBASE_HOST: "couchbase"
    networks:
      - my_network

networks:
  my_network:
    driver: bridge

I already install couchbase in my local computer. I got this error shown below

This is expected if the there is no DNS SRV record associated with the hostname in the connection string. Will now try to bootstrap directly from the given hostname. To suppress this message, specify an IP address instead of a hostname (for example: 127.0.0.1 instead of localhost), specify more than one hostname, or set the `io.enableDnsSrv` client setting to false.

This is expected if the there is no DNS SRV record associated with the hostname in the connection string. Will now try to bootstrap directly from the given hostname. To suppress this message, specify an IP address instead of a hostname (for example: 127.0.0.1 instead of localhost), specify more than one hostname, or set the `io.enableDnsSrv` client setting to false.

How can I fix it?

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•Created by direct_x_34 on 11/9/2024 in #java-help

Spring Boot with Couchbase running as TestContainer Issue

Can you help me how to fix the issue?

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•Created by direct_x_34 on 9/24/2024 in #java-help

Spring Boot - PrePersist and PreUpdate for Couchbase

I try to implement an example of Spring Boot with the usage Couchbase I have no idea how to implement PrePersist and PreUpdate for Couchbase Here are my codes shown below

@Getter
@Setter
@SuperBuilder
@NoArgsConstructor
@AllArgsConstructor
@Document
public class BaseEntity {

    @Id
    private String id;

    @Field(name = "createdAt")
    private LocalDateTime createdAt;

    @Field(name = "createdBy")
    private String createdBy;

    @Field(name = "updatedAt")
    private LocalDateTime updatedAt;

    @Field(name = "updatedBy")
    private String updatedBy;

    @PrePersist
    public void prePersist() {
        this.createdBy = Optional.ofNullable(SecurityContextHolder.getContext().getAuthentication())
                .map(Authentication::getPrincipal)
                .filter(user -> !"anonymousUser".equals(user))
                .map(Jwt.class::cast)
                .map(jwt -> jwt.getClaim(TokenClaims.USER_EMAIL.getValue()).toString())
                .orElse("anonymousUser");
        this.createdAt = LocalDateTime.now();
    }

    @PreUpdate
    public void preUpdate() {
        this.updatedBy = Optional.ofNullable(SecurityContextHolder.getContext().getAuthentication())
                .map(Authentication::getPrincipal)
                .filter(user -> !"anonymousUser".equals(user))
                .map(Jwt.class::cast)
                .map(jwt -> jwt.getClaim(TokenClaims.USER_EMAIL.getValue()).toString())
                .orElse("anonymousUser");
        this.updatedAt = LocalDateTime.now();
    }

}

@Getter
@Setter
@SuperBuilder
@NoArgsConstructor
@AllArgsConstructor
@Document
public class BaseEntity {

    @Id
    private String id;

    @Field(name = "createdAt")
    private LocalDateTime createdAt;

    @Field(name = "createdBy")
    private String createdBy;

    @Field(name = "updatedAt")
    private LocalDateTime updatedAt;

    @Field(name = "updatedBy")
    private String updatedBy;

    @PrePersist
    public void prePersist() {
        this.createdBy = Optional.ofNullable(SecurityContextHolder.getContext().getAuthentication())
                .map(Authentication::getPrincipal)
                .filter(user -> !"anonymousUser".equals(user))
                .map(Jwt.class::cast)
                .map(jwt -> jwt.getClaim(TokenClaims.USER_EMAIL.getValue()).toString())
                .orElse("anonymousUser");
        this.createdAt = LocalDateTime.now();
    }

    @PreUpdate
    public void preUpdate() {
        this.updatedBy = Optional.ofNullable(SecurityContextHolder.getContext().getAuthentication())
                .map(Authentication::getPrincipal)
                .filter(user -> !"anonymousUser".equals(user))
                .map(Jwt.class::cast)
                .map(jwt -> jwt.getClaim(TokenClaims.USER_EMAIL.getValue()).toString())
                .orElse("anonymousUser");
        this.updatedAt = LocalDateTime.now();
    }

}

4 replies

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•Created by direct_x_34 on 8/10/2024 in #java-help

Spring Boot Cache - Cannot Get the value

Here is my application yaml file

exchange-api:
  cache-name: exchanges
  cache-ttl: 10000 # 10 seconds

exchange-api:
  cache-name: exchanges
  cache-ttl: 10000 # 10 seconds

Here is the method

    @CacheEvict(allEntries = true, cacheNames = "${exchange-api.cache-name}")
    @PostConstruct
    @Scheduled(fixedRateString = "${exchange-api.cache-ttl}")
    public void clearCache() {
        logger.info("Caches are cleared");
    }

    @CacheEvict(allEntries = true, cacheNames = "${exchange-api.cache-name}")
    @PostConstruct
    @Scheduled(fixedRateString = "${exchange-api.cache-ttl}")
    public void clearCache() {
        logger.info("Caches are cleared");
    }

Here is the error
java.lang.IllegalArgumentException: Cannot find cache named '${exchange-api.cache-name}' for Builder[public void com.example.demo.controller.Controller.clearCache()] caches=[${exchange-api.cache-name}] | key='' | keyGenerator='' | cacheManager='' | cacheResolver='' | condition='',true,false

Here is the error
java.lang.IllegalArgumentException: Cannot find cache named '${exchange-api.cache-name}' for Builder[public void com.example.demo.controller.Controller.clearCache()] caches=[${exchange-api.cache-name}] | key='' | keyGenerator='' | cacheManager='' | cacheResolver='' | condition='',true,false

How can I fix it as I get the value as ${exchange-api.cache-name} from application.yaml file? I hope you can help me?

4 replies

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•Created by direct_x_34 on 7/16/2024 in #java-help

Spring Boot Microservices with JWT Issues

I try to implement an example of Spring Boot Microservices with JWT. I have some problems following: 1 ) I cannot run all integration tests of product service even if I defined bearer token 2 ) After login and get access token, I cannot send any request to product service. I got 500 Internal Server Error. How can I fix it? I hope you can help me? Here is the repo : https://github.com/Rapter1990/springbootmicroserviceswithsecurity

140 replies

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•Created by direct_x_34 on 3/20/2024 in #java-help

Spring Security - Cannot run logout Integration Test returns 404

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•Created by direct_x_34 on 3/11/2024 in #java-help

Cannot set any value LocalDateTime in Entity of Spring Boot Example

I have a problem to set LocalDateTime.now to the entity of Spring Boot Example Here is the entity shown below

    @Getter
    @Setter
    @EqualsAndHashCode(callSuper = true)
    @SuperBuilder
    @NoArgsConstructor
    @AllArgsConstructor
    @Entity
    @Table(name = "PARK")
    public class ParkEntity extends BaseEntity {
    
       ...
    
       @Column(name = "CHECK_IN")
       private LocalDateTime checkIn;
    
    
       ....
    }

    @Getter
    @Setter
    @EqualsAndHashCode(callSuper = true)
    @SuperBuilder
    @NoArgsConstructor
    @AllArgsConstructor
    @Entity
    @Table(name = "PARK")
    public class ParkEntity extends BaseEntity {
    
       ...
    
       @Column(name = "CHECK_IN")
       private LocalDateTime checkIn;
    
    
       ....
    }

Here is the BaseEntity shown below

    @Getter
    @Setter
    @SuperBuilder
    @NoArgsConstructor
    @AllArgsConstructor
    @MappedSuperclass
    public abstract class BaseEntity {
    
        @Column(name = "CREATED_USER")
        protected String createdUser;
    
        @Column(name = "CREATED_AT")
        protected LocalDateTime createdAt;
    
        @Column(name = "UPDATED_USER")
        protected String updatedUser;
    
        @Column(name = "UPDATED_AT")
        protected LocalDateTime updatedAt;
    
        @PrePersist
    public void prePersist() {
        this.createdUser = getUsernameFromAuthentication();
        this.createdAt = LocalDateTime.now();
    }

    @PreUpdate
    public void preUpdate() {
        this.updatedUser = getUsernameFromAuthentication();
        this.updatedAt = LocalDateTime.now();
    }
    
    ...
    }

    @Getter
    @Setter
    @SuperBuilder
    @NoArgsConstructor
    @AllArgsConstructor
    @MappedSuperclass
    public abstract class BaseEntity {
    
        @Column(name = "CREATED_USER")
        protected String createdUser;
    
        @Column(name = "CREATED_AT")
        protected LocalDateTime createdAt;
    
        @Column(name = "UPDATED_USER")
        protected String updatedUser;
    
        @Column(name = "UPDATED_AT")
        protected LocalDateTime updatedAt;
    
        @PrePersist
    public void prePersist() {
        this.createdUser = getUsernameFromAuthentication();
        this.createdAt = LocalDateTime.now();
    }

    @PreUpdate
    public void preUpdate() {
        this.updatedUser = getUsernameFromAuthentication();
        this.updatedAt = LocalDateTime.now();
    }
    
    ...
    }

Here is the method shown below

    private Park parkMethod(....) {
            ParkEntity parkEntity = ....
            parkEntity.setCheckIn(LocalDateTime.now());
            ParkEntity savedPark = parkRepository.save(parkEntity);
            return parkEntityToParkMapper.map(savedPark);
    }

    private Park parkMethod(....) {
            ParkEntity parkEntity = ....
            parkEntity.setCheckIn(LocalDateTime.now());
            ParkEntity savedPark = parkRepository.save(parkEntity);
            return parkEntityToParkMapper.map(savedPark);
    }

I have also other entities extending from BaseEntity. I get null value in checkIn of savedPark . I have to manually set the LocalDateTime.now() instead of using @Builder.Default How can I do that?

6 replies

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•Created by direct_x_34 on 3/10/2024 in #java-help

Cannot set any value LocalDateTime in Entity of Spring Boot Example

I have a problem to set LocalDateTime.now to the entity of Spring Boot Example Here is the entity shown below

    @Getter
    @Setter
    @EqualsAndHashCode(callSuper = true)
    @SuperBuilder
    @NoArgsConstructor
    @AllArgsConstructor
    @Entity
    @Table(name = "PARK")
    public class ParkEntity extends BaseEntity {
    
       ...
    
       @Column(name = "CHECK_IN")
       private LocalDateTime checkIn;
    
    
       ....
    }

    @Getter
    @Setter
    @EqualsAndHashCode(callSuper = true)
    @SuperBuilder
    @NoArgsConstructor
    @AllArgsConstructor
    @Entity
    @Table(name = "PARK")
    public class ParkEntity extends BaseEntity {
    
       ...
    
       @Column(name = "CHECK_IN")
       private LocalDateTime checkIn;
    
    
       ....
    }

Here is the method shown below

    private Park parkMethod(....) {
            ParkEntity parkEntity = ....
            parkEntity.setCheckIn(LocalDateTime.now());
            ParkEntity savedPark = parkRepository.save(parkEntity);
            return parkEntityToParkMapper.map(savedPark);
    }

    private Park parkMethod(....) {
            ParkEntity parkEntity = ....
            parkEntity.setCheckIn(LocalDateTime.now());
            ParkEntity savedPark = parkRepository.save(parkEntity);
            return parkEntityToParkMapper.map(savedPark);
    }

I get null value in checkIn of savedPark . I have to manually set the LocalDateTime.now() instead of using @Builder.Default How can I do that?

12 replies

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•Created by direct_x_34 on 2/20/2024 in #java-help

How to get array info from column in Spring Boot JPA (exception Dialect mapping for JDBC type Error)

I have a problem to get ["role1","role2","role3"] from roles column. Here is the entity shown below

@Entity
public class User {
    //...

    @Column(columnDefinition = "text[]")
    @Type(type = "com.baeldung.hibernate.arraymapping.CustomStringArrayType")
    private String[] roles;

    // getters and setters
}

@Entity
public class User {
    //...

    @Column(columnDefinition = "text[]")
    @Type(type = "com.baeldung.hibernate.arraymapping.CustomStringArrayType")
    private String[] roles;

    // getters and setters
}

Here is the JPARepository shown below

public interface UserRepository extends JpaRepository<User, Long> {

    @Query(value = "SELECT DISTINCT unnest(u.roles)::text FROM User u", nativeQuery = true)
    List<String> findDistinctRoles();
}

public interface UserRepository extends JpaRepository<User, Long> {

    @Query(value = "SELECT DISTINCT unnest(u.roles)::text FROM User u", nativeQuery = true)
    List<String> findDistinctRoles();
}

I got nested exception Dialect mapping for JDBC type? How can I fix it?

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•Created by direct_x_34 on 12/29/2023 in #java-help

Spring Boot with Kubernetes Java Client API - Edit Namespace

Here is the EditNamespaceRequest shown below

@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
@JsonIgnoreProperties(ignoreUnknown = true)
public class EditNamespaceRequest {
    private String name;
}

@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
@JsonIgnoreProperties(ignoreUnknown = true)
public class EditNamespaceRequest {
    private String name;
}

Here is the updateNamespace method of my Service

public V1Namespace updateNamespace(String currentName, EditNamespaceRequest editNamespaceRequest) throws ApiException {

try {
            // Retrieve the existing namespace
            V1Namespace existingNamespace = coreV1Api.readNamespace(currentName, null);

            // Update the existing namespace with the new values
            existingNamespace.metadata(new V1ObjectMeta().name(editNamespaceRequest.getName()));

            // Perform the update
            coreV1Api.replaceNamespace(currentName, existingNamespace, null, null, null,null);

            return existingNamespace;
        } catch (ApiException e) {
            // Handle API exception (e.g., namespace not found, permission issues, etc.)
            throw new RuntimeException("Failed to update namespace: " + e.getResponseBody(), e);
        }

    }

public V1Namespace updateNamespace(String currentName, EditNamespaceRequest editNamespaceRequest) throws ApiException {

try {
            // Retrieve the existing namespace
            V1Namespace existingNamespace = coreV1Api.readNamespace(currentName, null);

            // Update the existing namespace with the new values
            existingNamespace.metadata(new V1ObjectMeta().name(editNamespaceRequest.getName()));

            // Perform the update
            coreV1Api.replaceNamespace(currentName, existingNamespace, null, null, null,null);

            return existingNamespace;
        } catch (ApiException e) {
            // Handle API exception (e.g., namespace not found, permission issues, etc.)
            throw new RuntimeException("Failed to update namespace: " + e.getResponseBody(), e);
        }

    }

I have a problem to update Namespace by name through Kubernetes Java Client API. this error message is shown below when I run

 {"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"the name of the object (kupeteer-namespace-update) does not match the name on the URL (kupeteer-namespace-new)","reason":"BadRequest","code":400}

 {"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"the name of the object (kupeteer-namespace-update) does not match the name on the URL (kupeteer-namespace-new)","reason":"BadRequest","code":400}

How can I fix it?

4 replies

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•Created by direct_x_34 on 12/5/2023 in #java-help

How to use OAuth2 in Spring Cloud Gateway as a best practise

I've done some research on the topic. After connecting to the Kubernetes environment with a token and URL, I thought I could integrate OAuth2 with Spring Cloud Gateway directly. What is the best practice for this? Should I structure it as an Auth Service, User Service, and Gateway to progress more easily? Do you know any resources related to this?

4 replies

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•Created by direct_x_34 on 12/1/2023 in #java-help

Spring Cloud OAuth2 with Kubernetes

Hi, How's it going? I have a question to you if you can help me. I'm using the Kubernetes Java Client API to connect to your company's Kubernetes environment. I have URL and token information in that connection. I want to manage authentication and authorization using Spring OAuth2 Server in a microservices-based application. How can I achieve this?

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•Created by direct_x_34 on 11/30/2023 in #java-help

Spring Cloud with OAuth2 in Kubernetes

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•Created by direct_x_34 on 5/21/2023 in #java-help

Cannot detect API key from .env in my Spring Boot App

I want to create an app to use API Layer for currency exchange. I used a API key of Exchange Rates Data API in apilayer.com. When I send a request to Get Rates defined in postman_collection in my repo. I get this error message shown below

com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "message" (class com.exchangeapi.currencyexchange.exception.RestTemplateError), not marked as ignorable (4 known properties: "error", "status", "path", "timestamp"])  at [Source: (String)"{"message":"No API key found in request"}"; line: 1, column: 42] (through reference chain: com.exchangeapi.currencyexchange.exception.RestTemplateError["message"])

com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "message" (class com.exchangeapi.currencyexchange.exception.RestTemplateError), not marked as ignorable (4 known properties: "error", "status", "path", "timestamp"])  at [Source: (String)"{"message":"No API key found in request"}"; line: 1, column: 42] (through reference chain: com.exchangeapi.currencyexchange.exception.RestTemplateError["message"])

Here is the link : https://stackoverflow.com/questions/76300394/cannot-detect-api-key-from-env-in-my-spring-boot-app How can I fix it?

4 replies

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•Created by direct_x_34 on 5/19/2023 in #java-help

Cannot invoke "org.springframework.data.domain.Page.getContent()" for Junit Test with the usage of S

I couldn't solve the issue. Can you help me? Here is the link : https://stackoverflow.com/questions/76285005/cannot-invoke-org-springframework-data-domain-page-getcontent-for-junit-test

4 replies

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•Created by direct_x_34 on 5/4/2023 in #java-help

How to write Integration Test with the usage of Bearer Token in Spring Boot (throw An Authentication

I have a problem to write Integration Test in my Spring Boot example. In my UserController class, every methods are defined with PreAuthorize with roles. Here is the link : https://stackoverflow.com/questions/76172699/how-to-write-integration-test-with-the-usage-of-bearer-token-in-spring-boot-thr

6 replies

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•Created by direct_x_34 on 5/4/2023 in #java-help

How to write Integration Test with the usage of Bearer Token in Spring Boot (throw An Authentication

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•Created by direct_x_34 on 4/1/2023 in #java-help

com.google.zxing.NotFoundException Spring Boot QR Code Example JUnit Tests

I tried to implement an example of QR Code Generator in Spring Boot. I have a problem in Service Test and Controller Test. In Service Test, I cannot decode the byte values in QRCodeReader().decode(binaryBitmap) I get this error message shown below when I run any test method com.google.zxing.NotFoundException In Controller Test, I get this error message shown below when I run any test method

MockHttpServletResponse:
           Status = 400
    Error message = null
          Headers = [Content-Type:"application/problem+json"]
     Content type = application/problem+json
             Body = {"type":"about:blank","title":"Bad Request","status":400,"detail":"Required part 'text' is not present.","instance":"/api/v1/qr-generator"}
    Forwarded URL = null
   Redirected URL = null
          Cookies = []

java.lang.AssertionError: Status expected:<201> but was:<400>
Expected :201
Actual   :400

MockHttpServletResponse:
           Status = 400
    Error message = null
          Headers = [Content-Type:"application/problem+json"]
     Content type = application/problem+json
             Body = {"type":"about:blank","title":"Bad Request","status":400,"detail":"Required part 'text' is not present.","instance":"/api/v1/qr-generator"}
    Forwarded URL = null
   Redirected URL = null
          Cookies = []

java.lang.AssertionError: Status expected:<201> but was:<400>
Expected :201
Actual   :400

How can I fix it? Here is the link : https://github.com/Rapter1990/qr-generator-example

5 replies

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•Created by direct_x_34 on 3/31/2023 in #java-help

Cannot send requestbody and Multipartfile in Controller of Spring Boot from Postman

Here is the link : https://stackoverflow.com/questions/75903123/cannot-send-requestbody-and-multipartfile-in-controller-of-spring-boot-from-post

6 replies

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