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-mvc
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.
model.addAttribute() parameters
I’m new to Spring MVC Framework. I’m doing some self study to extend my knowledge in Java. This is how I understand the getProducts() code definition from a tutorial I’m following but please correct me if I’m wrong. Controller requests something from the Data Access Object > Data Access Object gets the data from a … Read more
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.
Spring boot: Unable to start embedded Tomcat servlet container
Try to change the port number in application.yaml (or application.properties) to something else.
RestClientException: Could not extract response. no suitable HttpMessageConverter found
The main problem here is content type [text/html;charset=iso-8859-1] received from the service, however the real content type should be application/json;charset=iso-8859-1 In order to overcome this you can introduce custom message converter. and register it for all kind of responses (i.e. ignore the response content type header). Just like this
How to upload a file and JSON data in Postman?
In postman, set method type to POST. Then select Body -> form-data -> Enter your parameter name (file according to your code) and on right side next to value column, there will be dropdown “text, file”, select File. choose your image file and post it. For rest of “text” based parameters, you can post it like normally you do with … Read more
The request sent by the client was syntactically incorrect.-Spring MVC + JDBC Template
I think the issue is that Spring doesn’t know how to deserialize the date your browser client sends when submitting the following input field in Spring doesn’t know how to take the value that you enter into that field and convert it into a Date object. You need to register a PropertyEditor for that. For … Read more
How to solve the “failed to lazily initialize a collection of role” Hibernate exception
If you know that you’ll want to see all Comments every time you retrieve a Topic then change your field mapping for comments to: Collections are lazy-loaded by default, take a look at this if you want to know more.