diff --git a/.github/workflows/jacoco_report.yml b/.github/workflows/jacoco_report.yml
new file mode 100644
index 0000000..3cd3280
--- /dev/null
+++ b/.github/workflows/jacoco_report.yml
@@ -0,0 +1,31 @@
+# A Github action that publishes the JaCoCo report as a comment
+
+name: Measure coverage
+
+on:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK 17
+        uses: actions/setup-java@v1
+        with:
+          java-version: '17'
+      - name: Build with Maven
+        run: mvn --batch-mode --update-snapshots test
+
+      - name: Jacoco Report to PR
+        id: jacoco
+        uses: madrapps/jacoco-report@v1.6.1
+        with:
+          paths: ${{ github.workspace }}/build/site/jacoco/jacoco.xml
+          token: ${{ secrets.GITHUB_TOKEN }}
+          min-coverage-overall: 40
+          min-coverage-changed-files: 60
+          title: Code Coverage
+          update-comment: true
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index be5acb5..5cc290c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -41,6 +41,15 @@
       <artifactId>spring-security-test</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-validation</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>javax.validation</groupId>
+      <artifactId>validation-api</artifactId>
+      <version>2.0.1.Final</version>
+    </dependency>
     <dependency>
       <groupId>org.postgresql</groupId>
       <artifactId>postgresql</artifactId>
diff --git a/src/main/java/ru/job4j/cars/controller/PostController.java b/src/main/java/ru/job4j/cars/controller/PostController.java
index 2292e3a..0d9a61e 100644
--- a/src/main/java/ru/job4j/cars/controller/PostController.java
+++ b/src/main/java/ru/job4j/cars/controller/PostController.java
@@ -5,6 +5,7 @@
 import lombok.AllArgsConstructor;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
+import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 import ru.job4j.cars.dto.ImageDto;
@@ -13,6 +14,7 @@
 import ru.job4j.cars.model.CarModel;
 import ru.job4j.cars.model.Post;
 import ru.job4j.cars.service.*;
+import ru.job4j.cars.utilities.SearchValidator;
 
 @Controller
 @RequestMapping("/posts")
@@ -29,14 +31,13 @@ public class PostController {
     private final FuelTypeService fuelTypeService;
     private final TransmissionService transmissionService;
 
+    private final SearchValidator searchValidator;
+
     @GetMapping("/all")
-    public String getAllPosts(Model model, @ModelAttribute PostSearchDto searchDto) {
+    public String getAllPosts(Model model, @ModelAttribute PostSearchDto searchDto, BindingResult br) {
         addFormAttributesToModel(model);
-        boolean searchActive = searchDto.getCar() != null
-                || searchDto.getHighestPrice() > 0
-                || searchDto.getLowestPrice() > 0
-                || searchDto.getPostCreatedBeforeDays() > 0
-                || searchDto.isImageExists();
+        searchValidator.validate(searchDto, br);
+        boolean searchActive = searchIsActiveCheck(br);
         if (!searchActive) {
             model.addAttribute("posts", postService.findAllNotSold());
         } else {
@@ -75,32 +76,24 @@ public String getEditPage(Model model, @PathVariable int id) {
     }
 
     @PostMapping("/create")
-    public String createPost(@ModelAttribute Post post, @RequestParam MultipartFile file, Model model) {
-        try {
-            Optional<Post> savedPost = postService.save(post,
-                    new ImageDto(file.getOriginalFilename(), file.getBytes()));
-            if (savedPost.isEmpty()) {
-                model.addAttribute("message", "Произошла ошибка при создании объявления.");
-                return "errors/404";
-            }
-        } catch (IOException e) {
-            model.addAttribute("message", "Ошибка при создании объявления!");
+    public String createPost(@ModelAttribute Post post, @RequestParam MultipartFile file, Model model)
+            throws IOException {
+        Optional<Post> savedPost = postService.save(post,
+                new ImageDto(file.getOriginalFilename(), file.getBytes()));
+        if (savedPost.isEmpty()) {
+            model.addAttribute("message", "Произошла ошибка при создании объявления.");
             return "errors/404";
         }
         return "redirect:/posts/all";
     }
 
     @PostMapping("/edit")
-    public String editPost(@ModelAttribute Post post, @RequestParam MultipartFile file, Model model) {
-        try {
-            boolean isUpdated = postService.update(post,
-                    new ImageDto(file.getOriginalFilename(), file.getBytes()));
-            if (!isUpdated) {
-                model.addAttribute("message", "Произошла ошибка при обновлении объявления.");
-                return "errors/404";
-            }
-        } catch (IOException e) {
-            model.addAttribute("message", "Ошибка при обновлении объявления!");
+    public String editPost(@ModelAttribute Post post, @RequestParam MultipartFile file, Model model)
+            throws IOException {
+        boolean isUpdated = postService.update(post,
+                new ImageDto(file.getOriginalFilename(), file.getBytes()));
+        if (!isUpdated) {
+            model.addAttribute("message", "Произошла ошибка при обновлении объявления.");
             return "errors/404";
         }
         return "redirect:/users/posts";
@@ -123,4 +116,8 @@ private Model addFormAttributesToModel(Model model) {
         return model;
     }
 
+    private boolean searchIsActiveCheck(BindingResult bindingResult) {
+        return bindingResult.getErrorCount() < PostSearchDto.class.getDeclaredFields().length;
+    }
+
 }
\ No newline at end of file
diff --git a/src/main/java/ru/job4j/cars/handler/MultipartFileGlobalExceptionHandler.java b/src/main/java/ru/job4j/cars/handler/MultipartFileGlobalExceptionHandler.java
new file mode 100644
index 0000000..a146459
--- /dev/null
+++ b/src/main/java/ru/job4j/cars/handler/MultipartFileGlobalExceptionHandler.java
@@ -0,0 +1,20 @@
+package ru.job4j.cars.handler;
+
+import java.io.IOException;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+@ControllerAdvice
+@Slf4j
+public class MultipartFileGlobalExceptionHandler {
+
+    @ExceptionHandler (value = {IOException.class})
+    public String ioExceptionHandle(Exception e, Model model) {
+        log.error(e.getMessage(), e);
+        model.addAttribute("message", "Ошибка при работе с объявлением!");
+        return "errors/404";
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/java/ru/job4j/cars/utilities/SearchValidator.java b/src/main/java/ru/job4j/cars/utilities/SearchValidator.java
new file mode 100644
index 0000000..9febc65
--- /dev/null
+++ b/src/main/java/ru/job4j/cars/utilities/SearchValidator.java
@@ -0,0 +1,36 @@
+package ru.job4j.cars.utilities;
+
+import org.springframework.stereotype.Component;
+import org.springframework.validation.Errors;
+import org.springframework.validation.Validator;
+import ru.job4j.cars.dto.PostSearchDto;
+
+@Component
+public class SearchValidator implements Validator {
+
+    @Override
+    public boolean supports(Class<?> clazz) {
+        return PostSearchDto.class.equals(clazz);
+    }
+
+    @Override
+    public void validate(Object target, Errors errors) {
+        PostSearchDto dto = (PostSearchDto) target;
+        if (dto.getCar() == null) {
+            errors.rejectValue("car", "Car is null");
+        }
+        if (dto.getHighestPrice() <= 0) {
+            errors.rejectValue("highestPrice", "highest price is less than 1");
+        }
+        if (dto.getLowestPrice() <= 0) {
+            errors.rejectValue("lowestPrice", "lowest price is less than 1");
+        }
+        if (dto.getPostCreatedBeforeDays() <= 0) {
+            errors.rejectValue("postCreatedBeforeDays", "created before is less than 1");
+        }
+        if (!dto.isImageExists()) {
+            errors.rejectValue("imageExists", " only image exists is false");
+        }
+    }
+
+}
\ No newline at end of file