I have this dependency:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
And I have this config:
#Configuration
public class AppConfig {
#Bean
public RestTemplate restTemplate() {
return new RestTemplate();
}
#Bean
public RestTemplate restTemplate(RestTemplateBuilder restTemplateBuilder) {
return restTemplateBuilder
.setConnectTimeout(ofMillis(3000))
.setReadTimeout(ofMillis(3000))
.build();
}
}
I wonder why Spring does not fail on start. It never inits first restTemplate but inits second one. I would expect Spring to fail.
This is a valid case, you are defining two bean definitions with same name of same bean, then the last bean defined will replace then first one bean defined.
If you want to an exception is thrown when two beans are defined by same name then you can configure by using setAllowBeanDefinitionOverriding(boolean allowBeanDefinitionOverriding) method from DefaultListableBeanFactory is who overrides whether it should be allowed to override bean definitions by registering a different definition with the same name.
Related
I want to provide a specific Bean, so that this Bean overrides the Bean in a Spring Cloud AutoConfiguration class.
First try
Therefore I've created a Configuration class:
#Configuration
public class MyLocalConfig {
#Bean
public ApiClient apiClient() throws IOException {
return ClientBuilder.standard(false).build();
}
}
Prioritizing by using #Primary or #Order annotations does not help.
Second try (EDIT)
I also tried to use an AutoConfiguration. But even the #AutoConfigureBefore Annotation is ignored.
#Configuration
#AutoConfigureBefore(KubernetesClientAutoConfiguration.class)
public class LocalKubeAutoConfiguration {
#Bean
public ApiClient apiClient() throws IOException {
return ClientBuilder.standard(false).build();
}
}
My Configuration class Beans are always instantiated after the Beans in KubernetesClientAutoConfiguration class.
Therefore the AutoConfiguration class does not use my Bean.
The doc says: At any point, you can start to define your own configuration to replace specific parts of the auto-configuration.
Questions:
What's my mistake?
How can I prioritize the configurations?
Here's my other code:
Main Class
#SpringBootApplication
public class SpringBootAdminApp {
public static void main(String[] args) {
SpringApplication.run(SpringBootAdminApp.class, args);
}
}
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 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>2.4.5</version>
<relativePath/>
</parent>
<groupId>com.example</groupId>
<artifactId>testme</artifactId>
<version>1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-kubernetes-client-all</artifactId>
<version>2.0.2</version>
</dependency>
</dependencies>
</project>
In the main class
add #SpringBootApplication(scanBasePackages = ....)
so the customized package will be scanned
this annotation just tell spring where to search.
https://www.baeldung.com/spring-component-scanning
Spring Boot Cloud uses Bootstrap Configuration to load the configurations.
By default, bootstrap properties (not bootstrap.properties but
properties that are loaded during the bootstrap phase) are added with
high precedence, so they cannot be overridden by local configuration.
Therefore I have to add a BootstrapConfiguration:
org.springframework.cloud.bootstrap.BootstrapConfiguration=\
com.demo.LocalKubeConfig
The Bean in the BootstrapConfiguration will be loaded before KubernetesClientAutoConfiguration.
I am using springfox-boot-starter dependency for swagger UI in my spring boot application but when I try to run the application I am getting below error
Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NoSuchMethodError: org.springframework.plugin.core.PluginRegistry.getPluginFor(Ljava/lang/Object;)Ljava/util/Optional;
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:184)
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:52)
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356)
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:157)
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:121)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:885)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:161)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759)
my config file:
#Bean
public Docket productApi() {
return new Docket(DocumentationType.SWAGGER_2)
.select()
.apis(RequestHandlerSelectors.basePackage("com.swagger.demo.controller"))
.paths(regex("/student.*"))
.build()
.enableUrlTemplating(true)
.produces(DEFAULT_PRODUCES_AND_CONSUMES)
.consumes(DEFAULT_PRODUCES_AND_CONSUMES)
.apiInfo(apiEndPointsInfo());
}
private ApiInfo apiEndPointsInfo() {
return new ApiInfoBuilder()
.title("demo")
.description("demo")
.version("1.0")
.build();
}
Below is the dependency which I am using.
pom.xml file:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<dependencies>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-boot-starter</artifactId>
<version>3.0.0</version>
</dependency>
</dependencies>
Why I am getting above error I don't get anything. Any help would be highly appreciated. Thanks in advance.
I had a similar issue and found the solution here.
Basically you have to include in the file application.properties the following configuration:
spring.mvc.pathmatch.matching-strategy=ant-path-matcher
As it seems Spring Boot 2+ set as default the PathPathern-based matcher, while Spring Fox expects the Ant-based matcher.
The problem with this solution is that you cannot use Spring Actuator, since it uses PathPattern based URL matching. In this case, check this Spring Fox issue.
SwaggerConfig.java
#Configuration
//Enable Swagger
#EnableSwagger2
public class SwaggerConfig
{
//creating bean
#Bean
public Docket api()
{
//creating constructor of Docket class that accepts parameter DocumentationType
return new Docket(DocumentationType.SWAGGER_2).select().apis(RequestHandlerSelectors.basePackage("com.example.demo.controller")).paths(PathSelectors.regex("/api.*")).build();
}
}
And Application.properties file :
spring.mvc.pathmatch.matching-strategy=ant-path-matcher
I am trying to create an "employee" Region and put some data into it. But, I am getting Exception below:
[warn 2018/12/27 17:15:46.518 IST tid=0x1] Exception
encountered during context initialization - cancelling refresh
attempt: org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'gemfireConfiguration': Injection of
resource dependencies failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'gemfireCache': FactoryBean threw exception on
object creation; nested exception is java.lang.NoClassDefFoundError:
it/unimi/dsi/fastutil/ints/Int2ObjectOpenHashMap
[warn 2018/12/27 17:15:46.519 IST tid=0x1] Invocation of
destroy method failed on bean with name 'gemfireCache':
org.apache.geode.cache.CacheClosedException: A cache has not yet been
created.
[error 2018/12/27 17:15:46.522 IST tid=0x1] Caught exception
while allowing TestExecutionListener
[org.springframework.test.context.web.ServletTestExecutionListener#c667f46]
to prepare test instance
[com.gemfire.demo.Gemfire1ApplicationTests#48bfb884]
Domain class
#Region("employee")
public class Employee {
#Id
public String name;
public double salary;
...
}
Repository class
#Repository
public interface EmployeeRepository extends CrudRepository<Employee, String> {
Employee findByName(String name);
}
Configuration class
#Configuration
#ComponentScan
#EnableGemfireRepositories(basePackages = "com.gemfire.demo")
public class GemfireConfiguration {
#Autowired
EmployeeRepository employeeRepository;
#Bean
Properties gemfireProperties() {
Properties gemfireProperties = new Properties();
gemfireProperties.setProperty("name", "SpringDataGemFireApplication");
gemfireProperties.setProperty("mcast-port", "0");
gemfireProperties.setProperty("log-level", "config");
return gemfireProperties;
}
#Bean
#Autowired
CacheFactoryBean gemfireCache() {
CacheFactoryBean gemfireCache = new CacheFactoryBean();
gemfireCache.setClose(true);
gemfireCache.setProperties(gemfireProperties());
return gemfireCache;
}
#Bean(name="employee")
#Autowired
LocalRegionFactoryBean<String, Employee> getEmployee(final GemFireCache cache) {
LocalRegionFactoryBean<String, Employee> employeeRegion = new LocalRegionFactoryBean<String, Employee>();
employeeRegion.setCache(cache);
employeeRegion.setClose(false);
employeeRegion.setName("employee");
employeeRegion.setPersistent(false);
employeeRegion.setDataPolicy(DataPolicy.PRELOADED);
return employeeRegion;
}
}
POM.XML
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cache</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-to-slf4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-core</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.data</groupId>
<artifactId>spring-data-gemfire</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.9.0</version>
</dependency>
Adding additional tips with your above GemFire/Spring JavaConfig configuration class above.
Given you are using Spring Data Kay (implied by your use of the Spring Boot 2.0.x parent POM, i.e. org.springframework.boot:spring-boot-dependencies; see here), then you could be using Spring Data GemFire's (relatively) new and convenient Annotation-based configuration model.
By doing so, your GemfireConfiguration class above would become...
#PeerCacheApplication
#EnableGemfireRepositories(basePackages = "com.gemfire.demo")
class GemfireConfiguration {
#Bean(name="employee")
LocalRegionFactoryBean<String, Employee> getEmployee(GemFireCache cache) {
LocalRegionFactoryBean<String, Employee> employeeRegion =
new LocalRegionFactoryBean<String, Employee>();
employeeRegion.setCache(cache);
employeeRegion.setClose(false);
employeeRegion.setDataPolicy(DataPolicy.PRELOADED);
return employeeRegion;
}
}
A few things to keep in mind:
#PeerCacheApplication is meta-annotated with #Configuration so you do not need the explicit Spring #Configuration annotation on the configuration class.
#PeerCacheApplication allows you to adjust the GemFire log-level (along with other logging configuration) using the logLevel annotation attribute. Similarly, you can set the log-level using the corresponding property, spring.data.gemfire.cache.log-level in a Spring Boot application.properties file (see here). There are many other attributes and corresponding properties (e.g. name) you can use to adjust and customize other configuration.
While String-based package names are supported on #EnableGemfireRepositories and similar annotations, we generally prefer and recommend users to use the type-safe variant basePacakgeClasses. You only need to refer to a single type from each top-level package where your application Repositories are kept.
The explicit #Autowired annotation is not needed on your bean definitions. You do not need to explicit inject the EmployeeRepository in the configuration class to have it initialized; just inject it into the #Service class where it will be used.
For convenience, the name ("employee") of the Region bean definition on your LOCAL "employee" Region, will also be used as the name of the Region, so employeeRegion.setName("employee") is unnecessary.
You should not combine LocalRegionFactoryBean.setPersistent(:boolean) with LocalRegionFactoryBean.setDataPolicy(:DataPolicy) since the DataPolicy is going to take precedence.
While #ComponentScan is perfectly acceptable and even convenient in development, I generally do not prefer nor recommend users to use component-scanning. It is usually always better to be explicit.
As stated in the comments, you chould remove <relativePath/> from your parent definition in your application Maven POM file.
Final note, as of this post, Spring Boot 2.0.8.RELEASE is the latest release.
As for your classpath issues, if you are using Maven correctly, then Maven should take care of pulling in the correct transitive dependencies.
You can refer to the many examples I have in this repo for further clarification.
Hope this helps!
As mentioned in comments, the error shows some dependencies (java.lang.NoClassDefFoundError: it/unimi/dsi/fastutil/ints/Int2ObjectOpenHashMap) are missing. Please add corresponding dependencies in your pom.xml
I only want to test mongo related code. This is my test code snippet:
#RunWith(SpringRunner.class)
#ContextConfiguration(classes = {MongoConfig.class})
#SpringBootTest
public class ModelTest {
#Autowired
private MongoTemplate mongoTemplate;
As you can see I'm using #ContextConfiguration in order to only load Mongo related configuration:
#Configuration
public class MongoConfig {
#Bean
public CustomConversions customConversions(){
List<Converter<?, ?>> converters = new ArrayList<Converter<?, ?>>();
converters.add(new ReferenceWriterConverter());
return new MongoCustomConversions(converters);
}
}
As you can see it's only intented to load custom converters are going to be used by mongoTemplate in order to serialize objects to mongodb database.
Also, src/test/resources/application.properties is:
spring.data.mongodb.host: localhost
spring.data.mongodb.port: 27017
The problem is that when I'm trying to run test it's getting me an Unsatisfied dependency expressed through field 'mongoTemplate':
UnsatisfiedDependencyException: Error creating bean with name 'net.gencat.transversal.repositori.digital.mongo.ModelTest': Unsatisfied dependency expressed through field 'mongoTemplate'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.data.mongodb.core.MongoTemplate' available
Related project dependencies:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</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-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
Any ideas?
Seems issue you are trying to load custom mongo configuration #Bean client here or extend AbstractMongoConfiguration.
change your database name here instead of demo
#Configuration
public class MongoConfig extends AbstractMongoConfiguration {
#Override
protected String getDatabaseName() {
return "demo";
}
#Override
public MongoClient mongoClient() {
return new MongoClient("localhost", 27017);
}
#Bean
public CustomConversions customConversions(){
List<Converter<?, ?>> converters = new ArrayList<Converter<?, ?>>();
converters.add(new ReferenceWriterConverter());
return new MongoCustomConversions(converters);
}
}
When I tried to create relationship using spring code,
I am getting Transaction manager error. I am using Mysql and Neo4j database in my project. I tries different solution but not able to resolve.
org.springframework.beans.factory.NoSuchBeanDefinitionException: No
bean named 'transactionManager' available: No matching
PlatformTransactionManager bean found for qualifier
'transactionManager' - neither qualifier match nor bean name match!
Pom.xml file as below
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.5.10.RELEASE</version>
</dependency>
<!-- For Neo4J Graph Database -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-neo4j</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.9-rc</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
<version>1.5.10.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
</dependencies>
<properties>
<java.version>1.8</java.version>
<thymeleaf.version>3.0.2.RELEASE</thymeleaf.version>
<thymeleaf-layout-dialect.version>2.1.1</thymeleaf-layout-dialect.version>
</properties>
</project>
Application.class
#SpringBootApplication
#EnableTransactionManagement
#EntityScan("projectone.entities")
public class Application {
public static void main(String[] args) {
//For Starting application
ApplicationContext applicationContext=SpringApplication.run(Application.class, args);
}
}
Database Configuration file:
#Configuration
#EnableJpaRepositories(basePackages = {"projectone.mysql"},
entityManagerFactoryRef = "dbEntityManager",
transactionManagerRef = "dbTransactionManager")
#EnableTransactionManagement
public class DatabaseConfiguration {
#Autowired
private Environment env;
#Bean
#Primary
public LocalContainerEntityManagerFactoryBean dbEntityManager() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(dbDatasource());
em.setPackagesToScan(new String[]{"projectone.mysql"});
em.setPersistenceUnitName("dbEntityManager");
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
HashMap<String, Object> properties = new HashMap<>();
properties.put("hibernate.dialect",env.getProperty("hibernate.dialect"));
properties.put("hibernate.show-sql",env.getProperty("jdbc.show-sql"));
em.setJpaPropertyMap(properties);
return em;
}
#Primary
#Bean
public DataSource dbDatasource() {
DriverManagerDataSource dataSource
= new DriverManagerDataSource();
dataSource.setDriverClassName(
env.getProperty("spring.datasource.driverClassName"));
dataSource.setUrl(env.getProperty("spring.datasource.url"));
dataSource.setUsername(env.getProperty("spring.datasource.username"));
dataSource.setPassword(env.getProperty("spring.datasource.password"));
return dataSource;
}
#Primary
#Bean
public PlatformTransactionManager dbTransactionManager() {
JpaTransactionManager transactionManager
= new JpaTransactionManager();
transactionManager.setEntityManagerFactory(
dbEntityManager().getObject());
return transactionManager;
}
}
I tried minimal configuration by removing the database configuration class. After that my application is not running and I am getting Person is not a managed Bean error.
If I use only #SpringBootApplication annotation then I am getting following Exception:
It is throwing
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'mappingController': Unsatisfied dependency expressed through field 'branchService';
nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'branchServiceImplementaion': Unsatisfied dependency expressed through field 'branchRepository';
nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'branchRepository': Unsatisfied dependency expressed through method 'setSession' parameter 0;
nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.data.neo4j.transaction.SharedSessionCreator#0': Cannot resolve reference to bean 'sessionFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/neo4j/Neo4jDataAutoConfiguration.class]: Bean instantiation via factory method failed;
nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.neo4j.ogm.session.SessionFactory]: Factory method 'sessionFactory' threw exception; nested exception is NullPointerException
Finally I found the mistake:
#Bean
public PlatformTransactionManager dbTransactionManager() {
JpaTransactionManager transactionManager
= new JpaTransactionManager();
transactionManager.setEntityManagerFactory(
dbEntityManager().getObject());
return transactionManager;
}
This section has mistake that caused the above issue.
change #Bean to #Bean(name="transactionManager") and this solved the issue.
I had the same issue, but I was missing the transactionManagerRef = "dbTransactionManager" configuration in #EnableJpaRepositories
resolve: to change a name of function from:
public PlatformTransactionManager dbTransactionManager(){}
to:
public PlatformTransactionManager transactionManager(){}
Checke transactionManager this name JPAConfig class.
#Bean
public PlatformTransactionManager transactionManager(EntityManagerFactory emf){
return new JpaTransactionManager(emf);
}
I had the same problem and I noticed that there is an extra space where while specifying the transaction-manager as specified in the image.