Spring 3 MVC resources and tag mvc:resources /
Found the error: Final xxx-servlet.xml config: Image in src/webapp/resources/logo.png Works!
spring
Spring Hibernate – Could not obtain transaction-synchronized Session for current thread
You must enable the transaction support (<tx:annotation-driven> or @EnableTransactionManagement) and declare the transactionManager and it should work through the SessionFactory. You must add @Transactional into your @Repository With @Transactional in your @Repository Spring is able to apply transactional support into your repository. Your Student class has no the @javax.persistence.* annotations how @Entity, I am assuming … Read more
No mapping found for HTTP request with URI…. in DispatcherServlet with name [duplicate]
You could try and add an @Controller annotation on top of your myController Class and try the following url /<webappname>/my/hello.html. This is because org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping prepends /my to each RequestMapping in the myController class.
No Spring WebApplicationInitializer types detected on classpath
This turned out to be a stupid error. My log4j wasn’t configured to capture my error output. I was throwing configuration errors in the background and once I fixed those I was good to go and my request mappings worked fine.
Facing io.netty.handler.timeout.ReadTimeoutException: null while consuming server sent events
In the Mozilla description for server sent events there is a note: A colon as the first character of a line is in essence a comment, and is ignored. Note: The comment line can be used to prevent connections from timing out; a server can send a comment periodically to keep the connection alive. So periodically sending comments can … Read more
What does java:comp/env/ do?
Quoting https://web.archive.org/web/20140227201242/http://v1.dione.zcu.cz/java/docs/jndi-1.2/tutorial/beyond/misc/policy.html At the root context of the namespace is a binding with the name “comp”, which is bound to a subtree reserved for component-related bindings. The name “comp” is short for component. There are no other bindings at the root context. However, the root context is reserved for the future expansion of the policy, specifically … Read more
SFTP upload file Permission denied
You seemed to upload your local file “C:\Workspace\upload-file\test.xlsx” to remote directory, “/var/www/folder” on SFTP. I guess you have all permissions for reading,writing,executing etc on your local file(“C:\Workspace\upload-file\test.xlsx”), but your remote folder, “/var/www/folder”, might not accept your application’s access including “upload” action. SOLUTION: The most simplest way to solve this issue is just granting all permission for all users to do anything … Read more
Neither BindingResult nor plain target object for bean name available as request attribute
In the controller, you need to add the login object as an attribute of the model: Like this:
Difference between Spring MVC and Spring Boot
Spring MVC is a complete HTTP oriented MVC framework managed by the Spring Framework and based in Servlets. It would be equivalent to JSF in the JavaEE stack. The most popular elements in it are classes annotated with @Controller, where you implement methods you can access using different HTTP requests. It has an equivalent @RestController to implement REST-based APIs. … Read more
Failed to load ApplicationContext from Unit Test: FileNotFound
I added the spring folder to the build path and, after clean&build, it worked.