I've looked at similar problems:
how to intercept all requests in spring REST controllers?
spring boot adding http request interceptors
And still can't figure out the solution. I have a Spring Boot app that runs a bunch of Rest Controllers and want to intercept calls and perform some business logic before the request is passed to the controllers. I have this:
My Application class for Sprint Boot:
package com.amazonaws.lambda.keefinty.application;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
@SpringBootApplication(scanBasePackages="com.amazonaws.lambda.keefinty.controllers")
public class Application extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
My Configuration class in same package a Application:
package com.amazonaws.lambda.keefinty.application;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import com.amazonaws.lambda.keefinty.interceptors.MyInterceptor;
@Configuration
public class MyConfiguration extends WebMvcConfigurerAdapter {
@Bean
public MyInterceptor getInterceptor() {
return new MyInterceptor();
}
@Override
public void addInterceptors (InterceptorRegistry registry) {
System.out.println("\n\nAdding interceptors\n\n");
registry.addInterceptor(getInterceptor()).addPathPatterns("/**");
}
}
And finally the interceptor class:
package com.amazonaws.lambda.keefinty.interceptors;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
@Component
public class MyInterceptor extends HandlerInterceptorAdapter {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
System.out.print("\\n\\nIn MyInterceptor.preHandle\\n\\n");
String token = request.getParameter("token");
if (StringUtils.isBlank(token)) {
throw new Exception("Invalid User Id or Password. Please try again.");
}
return true;
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
Exception exception) throws Exception {
// TODO Auto-generated method stub
System.out.print("\n\nIn MyInterceptor.afterCompletion\\n\\n");
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
ModelAndView modelAndView) throws Exception {
// TODO Auto-generated method stub
System.out.print("\\n\\nIn MyInterceptor.postHandle\\n\\n");
}
}
The Configuration class never seems to get called to register the interceptors nor does MyInterceptor.
