2 Reasons of org.springframework.beans.factory.BeanCreationException: Error crea...
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2 Reasons of org.springframework.beans.factory.BeanCreationException: Error creating bean with name [Solution]
In short, you should always give a detailed look at the stack trace of your error message and find out the exact cause of "org.springframework.beans.factory.BeanCreationException: Error creating a bean with name" error.
In this article, I'll share two of the most common reasons for "org.springframework.beans.factory.BeanCreationException: Error creating a bean with name" error in Spring-based Java application and their solutions.
By the way, if you are new to the Spring framework then I also suggest you join a comprehensive and up-to-date course to learn Spring in depth. If you need recommendations, I highly suggest you take a look at these best Spring Framework courses, these are online, comprehensive and hands-on resource to learn modern Spring.
1. No default constructor on Spring Bean
One of the common mistakes Java programmers make is they forget to define a no-argument constructor in their Spring Bean. If you remember, a spring bean is nothing but a Java class instantiated and managed by Spring.Many Java programmer defines a constructor which accepts one or two-argument and forget about the default no-argument constructor, which result in org.springframework.beans.factory.BeanCreationException: Error creating bean with the name at runtime as shown below:
ERROR: org.springframework.web.servlet.DispatcherServlet - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'InterestRateController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.abc.project.model.service.InterestRateServiceImpl com.abc.project.controller.InterestRateController.InterestRateServ; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'InterestRateServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void com.abc.project.model.service.InterestRateServiceImpl.setInterestRateDAO(com.abc.project.model.dao.InterestRateDAO); nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'InterestRateDAO' defined in file [C:\Users\zouhair\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\TESTER\WEB-INF\classes\com\abc\project\model\dao\InterestRateDAO.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.abc.project.model.dao.InterestRateDAO]: No default constructor found; nested exception is java.lang.NoSuchMethodException: com.abc.project.model.dao.InterestRateDAO.()
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
The most important line in this stack trace is
"No default constructor found; nested exception is java.lang.NoSuchMethodException: com.abc.project.model.dao.InterestRateDAO.()"
which is often overlooked by Java programmers. So, either don't provide any constructor so that compiler can add the default constructor for you, and if you do provide parameterized constructor then don't forget to add a no-argument, default constructor in your bean to solve this error.
2) Spring Bean dependent on third party library
If your Spring bean is using a third party library and that library is not available in the classpath at runtime, Spring will again throw"org.springframework.beans.factory.BeanCreationException: Error creating a bean with name" error.
Here is a code snippet which defines beans in Spring configuration and how one single bean is used as a dependency for several other beans. The bean is created and maintained by the Spring IOC container.
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4 comments :
Unknown said...
Nice Article.
Most of the times we use place holders in our application, missing of place holders while bean creation also cause this issue. In other words unable to find the dependencies during object creation will lead to this error.
Ss said...
How to resolve bean factory errors
chouhan said...
some time java version is not proper
Anonymous said...
How to solve this problem please tell me
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