.

src/main/java/com/bookinfo/rest/ProductPageController.java

@@ -3,10 +3,12 @@ package com.bookinfo.rest;
 import com.bookinfo.client.DetailsClient;
 import com.bookinfo.client.ReviewsClient;
 import com.bookinfo.entity.Product;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.MediaType;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
+import org.springframework.util.CollectionUtils;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.client.HttpClientErrorException;
 import org.springframework.web.client.RestClientException;
@@ -15,8 +17,10 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 @Controller
+@Slf4j
 public class ProductPageController {
     @Autowired
     private DetailsClient detailsClient;
@@ -58,6 +62,8 @@ public class ProductPageController {
 
         response.setHeader("end-user",user);
 
+
+
         return "productpage";
     }
 
@@ -82,10 +88,13 @@ public class ProductPageController {
 
     private void getDetails(int idProduct, Model model) {
         try {
-            model.addAttribute("details", detailsClient.getDetail(idProduct));
+            Object detail = detailsClient.getDetail(idProduct);
+            log.info("[bowen-bookinfo-app]-[productpage/getDetails], resp={}", Objects.isNull(detail) ? "detail is empty" : detail.toString());
+            model.addAttribute("details", detail);
             model.addAttribute("detailsStatus", 200);
         }
         catch (RestClientException ex){
+            log.error("[bowen-bookinfo-app]-[productpage/getDetails], exception={}", ex.getMessage());
             if(ex instanceof HttpClientErrorException){
                 model.addAttribute("detailsStatus", ((HttpClientErrorException) ex).getStatusCode());
             }
@@ -100,12 +109,15 @@ public class ProductPageController {
 
             String user = (request.getSession() == null)? "" : (String) request.getSession().getAttribute("user");
 
-            model.addAttribute("reviews", reviewsClient.getReviews(idProduct,user));
+            List<Object> reviews = reviewsClient.getReviews(idProduct, user);
+            model.addAttribute("reviews", reviews);
+
+            log.info("[bowen-bookinfo-app]-[productpage/getReviews], resp={}", CollectionUtils.isEmpty(reviews) ? "reviews is empty" : reviews.toString());
             model.addAttribute("reviewsStatus", 200);
 
         }
         catch (RestClientException ex){
-            System.out.println(ex);
+            log.error("[bowen-bookinfo-app]-[productpage/getReviews], exception={}", ex.getMessage());
             if(ex instanceof HttpClientErrorException){
                 model.addAttribute("reviewsStatus", ((HttpClientErrorException) ex).getStatusCode());
             }