Spring Boot Interceptor | Handler Interceptor | Web MVC Configuration Support

You will learn how can use an interceptor to add the request header before sending the request to the controller and add the response header before sending the response to the client.
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[@ashok4harsha]

Very useful lectures,simple and easy to understand

[@hello-again6994]

Succinct to-the-point presentation. 👍

[@user-fn2er6ro3y]

This very important source.Thankyou

[@Anushaaa_]

Very informative 👏👏

[@bojrajr3473]

Thanks man❤, that's a useful one

[@ashu7pathak]

Thanks. Also, you could have told about when to use interceptors, but in your description I read - to add request header or response header.
I'm assuming that we can useinterceptor.preHandle() - for adding request headers and interceptor.postHandle() or interceptor.afterCompletion() for adding response headers.

[@oluwatosinobatoyinbo5024]

Thanks for sharing

[@poojashegokar2635]

Nice info

[@ayushgarg5929]

ye overridden method dekhne k liye konsi key press key thi?

[@suryanarayansubudhi9439]

If possible attach your code git URL in the video description

[@robinmathew8828]

Hi I have a doubt please respond as soon as possible ,which annotations implementing filter design pattern? @Secured,@Enable@,@Preauthorize

[@zenhsuld]

Thanks for the tutorial. How to write all request log to database(IP, USER_ID etc..,) ?

[@abhinavsharma7818]

Create a filter which extends OncePerRequestFilter , you can save the request and response as well

[@technotowntechie9732]

You can either use OncePerRequestFilter or CommonsRequestLoggingFilter.

[@bhaskarudaya6889]

Thanks for all the work, can you help us with spring boot with rabbit mq impl

[@technotowntechie9732]

Sure, I will do it soon.

[@technotowntechie9732]

I have created spring boot with rabbitmq example. th-cam.com/video/YLsG0mew2dU/w-d-xo.html

[@Iam_Goutam]

Please please help how we can configure EndPointInterceptor , pleas help to do that

[@technotowntechie9732]

Create an EndpointInterceptor Implementation:
Create a class that implements the HandlerInterceptor interface or extends the HandlerInterceptorAdapter class. This class will define the pre- and post-processing logic for intercepting requests.
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class CustomEndpointInterceptor implements HandlerInterceptor {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
// Pre-processing logic before the request is handled by the controller
return true; // Return true to proceed with the handling of the request
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
// Post-processing logic after the request has been handled by the controller
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
// After completion logic (e.g., resource cleanup)
}
}
Configure the EndpointInterceptor in your Spring Boot application by overriding the addInterceptors method of WebMvcConfigurerAdapter or WebMvcConfigurer.
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@Configuration
public class WebMvcConfig implements WebMvcConfigurer {
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new CustomEndpointInterceptor())
.addPathPatterns("/**"); // Add path patterns for which this interceptor should be invoked
}
}
You can specify path patterns for the interceptor to apply to specific endpoints. In this example, we've used "/**" to apply the interceptor to all endpoints. Modify the path pattern as needed for your use case.
registry.addInterceptor(new CustomEndpointInterceptor())
.addPathPatterns("/api/**"); // Apply to endpoints under the "/api" path

[@Iam_Goutam]

@@technotowntechie9732 Many many thanks for your detailed reply, so when I will give a soap call request with this url pattern it will invoke automatically? I am using Jaxws-spring api for webservice and spring mvc

[@technotowntechie9732]

For SOAP web services using JAX-WS and Spring, you might want to look into using JAX-WS handlers. Handlers in JAX-WS allow you to intercept and manipulate messages at the SOAP message level, which is appropriate for SOAP-based web services.
Create a class that implements javax.xml.ws.handler.soap.SOAPHandler interface.
import javax.xml.ws.handler.soap.*;
import javax.xml.ws.handler.MessageContext;
import java.util.Set;
public class CustomSOAPHandler implements SOAPHandler {
@Override
public boolean handleMessage(SOAPMessageContext context) {
// Handle the SOAP message
return true;
}
@Override
public boolean handleFault(SOAPMessageContext context) {
// Handle faults in SOAP message
return true;
}
@Override
public void close(MessageContext context) {
// Clean up resources
}
@Override
public Set getHeaders() {
// Return the set of QNames for headers
return null;
}
}
Configure the Handler in the Spring context:


Use the handler in your JAX-WS web service implementation.
@WebService
@HandlerChain(file="handler-chain.xml") // You can specify the handler chain in an XML file
public class MyWebService {
// Web service methods
}