spring-4 - w3toppers.com

AbstractMethodError on deploying Spring 4.0 in Tomcat 6

The error has nothing to do with the EL. It has all to do with the javax.validation api and hibernate. java.lang.AbstractMethodError: org.hibernate.validator.internal.engine.ConfigurationImpl.getDefaultParameterNameProvider()Ljavax/validation/ParameterNameProvider Hibernate validator 4.3.x is an implementation of javax.validation 1.0 (JSR-303). However you are including the 1.1 API version. Either downgrade the included javax.validation version or upgrade your hibernate validator to 5.0.x.

How to return JSON data from spring Controller using @ResponseBody

I was facing same issue. I did not put @ResponseBody since I was using @RestController. But still I was getting error because I did not put the getter/setter method for the Company class. So after putting the getter/setter my problem was resolved.

Spring 4 RestController JSON: characteristics not acceptable according to the request “accept” headers

The trick with this error is that it can be very miss-leading. In the situation as with the OP, where you see the error resulting from a browser GET request (with accept header */*), and the proper configuration (in the OPs case a default minimal working configuration) , the cause is very likely the exception … Read more

WebSocket with Sockjs & Spring 4 but without Stomp

Spring supports STOMP over WebSocket but the use of a subprotocol is not mandatory, you can deal with the raw websocket. When using a raw websocket, the message sent lacks of information to make Spring route it to a specific message handler method (we don’t have any messaging protocol), so instead of annotating your controller, … Read more

When use ResponseEntity and @RestController for Spring RESTful applications

ResponseEntity is meant to represent the entire HTTP response. You can control anything that goes into it: status code, headers, and body. @ResponseBody is a marker for the HTTP response body and @ResponseStatus declares the status code of the HTTP response. @ResponseStatus isn’t very flexible. It marks the entire method so you have to be … Read more

Spring 4 – addResourceHandlers not resolving the static resources

this worked, registry.addResourceHandler(“/resources/**”).addResourceLocations(“/resources/”); and in the jsp files I referred to the static resources like <link href=”https://stackoverflow.com/questions/25061237/resources/css/bootstrap.css” rel=”stylesheet” media=”screen”>