Completed solution

account-jsp/src/main/java/com/bobocode/config/AccountWebAppInitializer.java

@@ -12,16 +12,17 @@
 public class AccountWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
     @Override
     protected Class<?>[] getRootConfigClasses() {
-        throw new UnsupportedOperationException("It's your job to implement this method!");
+        return new Class[]{RootConfig.class};
     }
 
     @Override
     protected Class<?>[] getServletConfigClasses() {
-        throw new UnsupportedOperationException("It's your job to implement this method!");
+        return new Class[]{WebConfig.class};
     }
 
     @Override
     protected String[] getServletMappings() {
-        throw new UnsupportedOperationException("It's your job to implement this method!");
+        return new String[]{"/"};
     }
 }
+

account-jsp/src/main/java/com/bobocode/config/RootConfig.java

@@ -1,6 +1,10 @@
 package com.bobocode.config;
 
 import com.bobocode.TestDataGenerator;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.ComponentScan.Filter;
+import org.springframework.context.annotation.Configuration;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 
@@ -12,5 +16,12 @@
  * todo: 3. Exclude web related config and beans (ignore @{@link Controller}, ignore {@link EnableWebMvc})
  * todo: 4. Configure {@link TestDataGenerator} bean with name "dataGenerator" (don't specify name explicitly)
  */
+@Configuration
+@ComponentScan(basePackages = "com.bobocode", excludeFilters = {@Filter(EnableWebMvc.class), @Filter(Controller.class)})
 public class RootConfig {
+    @Bean
+    public TestDataGenerator dataGenerator() {
+        return new TestDataGenerator();
+    }
 }
+

account-jsp/src/main/java/com/bobocode/config/WebConfig.java

@@ -1,5 +1,12 @@
 package com.bobocode.config;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.ViewResolver;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+import org.springframework.web.servlet.view.InternalResourceViewResolver;
+
 /**
  * This class provides web (servlet) related configuration.
  * <p>
@@ -8,6 +15,17 @@
  * todo: 3. Enable component scanning for package "web" using annotation value
  * todo: 4. Configure JPS internal view resolver with prefix = "/WEB-INF/views/" and suffix ".jsp"
  */
+@Configuration
+@ComponentScan("com.bobocode.web")
+@EnableWebMvc
 public class WebConfig {
 
+    @Bean
+    public ViewResolver viewResolver() {
+        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
+        resolver.setPrefix("/WEB-INF/views/");
+        resolver.setSuffix(".jsp");
+        return resolver;
+    }
 }
+

account-jsp/src/main/java/com/bobocode/web/controller/AccountController.java

@@ -2,6 +2,17 @@
 
 import com.bobocode.TestDataGenerator;
 import com.bobocode.model.Account;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+import java.util.List;
+import java.util.stream.Stream;
+
+import static java.util.stream.Collectors.toList;
 
 /**
  * This controller provides endpoint that generates a list of {@link Account} and passes it to the view.
@@ -13,6 +24,17 @@
  * todo: 5. Provide a default value "10" for parameter "size"
  * todo: 6. Pass the list of accounts to the view using model attribute with name "accountList"
  */
+@Controller
+@RequestMapping("/accounts")
 public class AccountController {
+    @Autowired
+    private TestDataGenerator dataGenerator;
 
+    @GetMapping
+    public String getAccounts(@RequestParam(name = "size", defaultValue = "10") int size, Model model) {
+        List<Account> accounts = Stream.generate(dataGenerator::generateAccount).limit(size).collect(toList());
+        model.addAttribute("accountList", accounts);
+        return "accounts";
+    }
 }
+

account-jsp/src/main/java/com/bobocode/web/controller/WelcomeController.java

@@ -1,12 +1,22 @@
 package com.bobocode.web.controller;
 
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
 /**
  * Welcome controller that consists of one method that handles get request to "/" and "/welcome" and respond with a message.
  * <p>
  * todo: 1. Mark this class as Spring controller
  * todo: 2. Configure HTTP GET mapping "/" and "/welcome" for method {@link WelcomeController#welcome()}
  * todo: 3. Forward the request to "welcome.jsp" view
  */
+@Controller
 public class WelcomeController {
 
+    @GetMapping({"/", "/welcome"})
+    public String welcome() {
+        return "welcome";
+    }
+
 }
+

account-rest-api/src/main/java/com/bobocode/config/RootConfig.java

@@ -1,5 +1,9 @@
 package com.bobocode.config;
 
+import com.bobocode.TestDataGenerator;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.ComponentScan.Filter;
+import org.springframework.context.annotation.Configuration;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 
@@ -10,5 +14,8 @@
  * todo: 2. Enable component scanning for all packages in "com.bobocode" using annotation property "basePackages"
  * todo: 3. Exclude web related config and beans (ignore @{@link Controller}, ignore {@link EnableWebMvc})
  */
+@Configuration
+@ComponentScan(basePackages = "com.bobocode", excludeFilters = {@Filter(EnableWebMvc.class), @Filter(Controller.class)})
 public class RootConfig {
 }
+

account-rest-api/src/main/java/com/bobocode/config/WebConfig.java

@@ -1,12 +1,21 @@
 package com.bobocode.config;
 
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+
 /**
  * This class provides web (servlet) related configuration.
  * <p>
  * todo: 1. Mark this class as Spring config class
  * todo: 2. Enable web mvc using annotation
  * todo: 3. Enable component scanning for package "web" using annotation value
  */
+@EnableWebMvc
+@Configuration
+@ComponentScan("com.bobocode.web")
 public class WebConfig {
 
 }
+

account-rest-api/src/main/java/com/bobocode/dao/impl/InMemoryAccountDao.java

@@ -3,6 +3,7 @@
 import com.bobocode.dao.AccountDao;
 import com.bobocode.exception.EntityNotFountException;
 import com.bobocode.model.Account;
+import org.springframework.stereotype.Component;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -14,6 +15,7 @@
  * <p>
  * todo: 1. Configure a component with name "accountDao"
  */
+@Component("accountDao")
 public class InMemoryAccountDao implements AccountDao {
     private Map<Long, Account> accountMap = new HashMap<>();
     private long idSequence = 1L;

account-rest-api/src/main/java/com/bobocode/web/controller/AccountRestController.java

@@ -1,6 +1,12 @@
 package com.bobocode.web.controller;
 
 import com.bobocode.dao.AccountDao;
+import com.bobocode.model.Account;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.Objects;
 
 /**
  * <p>
@@ -16,6 +22,46 @@
  * todo: 7. Implement method that handles DELETE request with id as path variable removes an account by id
  * todo:    Configure HTTP response status code 204 - NO CONTENT
  */
+@RestController
+@RequestMapping("/accounts")
 public class AccountRestController {
+    private final AccountDao accountDao;
+
+    public AccountRestController(AccountDao accountDao) {
+        this.accountDao = accountDao;
+    }
+
+    @GetMapping
+    public List<Account> getAll() {
+        return accountDao.findAll();
+    }
+
+    @GetMapping("/{id}")
+    public Account getOne(@PathVariable long id) {
+        return accountDao.findById(id);
+    }
+
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    public Account create(@RequestBody Account account) {
+        return accountDao.save(account);
+    }
+
+    @PutMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    public void update(@PathVariable long id, @RequestBody Account account) {
+        if (!Objects.equals(id, account.getId())) {
+            throw new IllegalStateException("Id parameter does not match account body value");
+        }
+        accountDao.save(account);
+    }
+
+    @DeleteMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    public void remove(@PathVariable long id) {
+        Account account = accountDao.findById(id);
+        accountDao.remove(account);
+    }
 
 }
+

hello-application-context/src/main/java/com/bobocode/config/AppConfig.java

@@ -1,6 +1,9 @@
 package com.bobocode.config;
 
 import com.bobocode.TestDataGenerator;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
 
 /**
  * This class application context configuration.
@@ -10,6 +13,12 @@
  * todo: provide explicit configuration for a bean of type {@link TestDataGenerator} with name "dataGenerator" in this class.
  * todo: Don't specify bean name "dataGenerator" explicitly
  */
+@Configuration
+@ComponentScan(basePackages = {"com.bobocode.dao","com.bobocode.service"})
 public class AppConfig {
 
+    @Bean
+    public TestDataGenerator dataGenerator() {
+        return new TestDataGenerator();
+    }
 }

hello-application-context/src/main/java/com/bobocode/dao/FakeAccountDao.java

@@ -3,6 +3,7 @@
 import com.bobocode.TestDataGenerator;
 import com.bobocode.model.Account;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
 
 import java.util.List;
 import java.util.stream.Stream;
@@ -15,9 +16,11 @@
  * todo: configure this class as Spring component with bean name "accountDao"
  * todo: use explicit (with {@link Autowired} annotation) constructor-based dependency injection
  */
+@Component("accountDao")
 public class FakeAccountDao implements AccountDao {
     private List<Account> accounts;
 
+    @Autowired
     public FakeAccountDao(TestDataGenerator testDataGenerator) {
         this.accounts = Stream.generate(testDataGenerator::generateAccount)
                 .limit(20)

hello-application-context/src/main/java/com/bobocode/service/AccountService.java

@@ -2,6 +2,7 @@
 
 import com.bobocode.dao.AccountDao;
 import com.bobocode.model.Account;
+import org.springframework.stereotype.Service;
 
 import java.util.Comparator;
 import java.util.List;
@@ -12,6 +13,7 @@
  * todo: configure {@link AccountService} bean implicitly using special annotation for service classes
  * todo: use implicit constructor-based dependency injection (don't use {@link org.springframework.beans.factory.annotation.Autowired})
  */
+@Service
 public class AccountService {
     private final AccountDao accountDao;
 

hello-spring-mvc/src/main/java/com/bobocode/config/RootConfig.java

@@ -1,5 +1,8 @@
 package com.bobocode.config;
 
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.ComponentScan.Filter;
+import org.springframework.context.annotation.Configuration;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 
@@ -10,5 +13,7 @@
  * todo: enable component scanning for all packages in "com.bobocode"
  * todo: ignore all web related config and beans (ignore @{@link Controller}, ignore {@link EnableWebMvc}) using exclude filter
  */
+@Configuration
+@ComponentScan(basePackages = "com.bobocode", excludeFilters = {@Filter(EnableWebMvc.class), @Filter(Controller.class)})
 public class RootConfig {
 }

hello-spring-mvc/src/main/java/com/bobocode/config/WebAppInitializer.java

@@ -12,16 +12,17 @@
 public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
     @Override
     protected Class<?>[] getRootConfigClasses() {
-        throw new UnsupportedOperationException("Method is not implemented yet!");
+        return new Class[]{RootConfig.class};
     }
 
     @Override
     protected Class<?>[] getServletConfigClasses() {
-        throw new UnsupportedOperationException("Method is not implemented yet!");
+        return new Class[]{WebConfig.class};
+
     }
 
     @Override
     protected String[] getServletMappings() {
-        throw new UnsupportedOperationException("Method is not implemented yet!");
+        return new String[]{"/"};
     }
 }

hello-spring-mvc/src/main/java/com/bobocode/config/WebConfig.java

@@ -1,11 +1,18 @@
 package com.bobocode.config;
 
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+
 /**
  * This class provides web (servlet) related configuration.
  * <p>
  * todo: mark this class as Spring config class
  * todo: enable web mvc using annotation
  * todo: enable component scanning for package "web"
  */
+@Configuration
+@EnableWebMvc
+@ComponentScan(basePackages = "com.bobocode.web")
 public class WebConfig {
 }

hello-spring-mvc/src/main/java/com/bobocode/web/controller/WelcomeController.java

@@ -1,14 +1,21 @@
 package com.bobocode.web.controller;
 
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
 /**
  * Welcome controller that consists of one method that handles get request to "/welcome" and respond with a message.
  * <p>
  * todo: mark this class as Spring controller
  * todo: configure HTTP GET mapping "/welcome" for method {@link WelcomeController#welcome()}
  * todo: tell Spring that {@link WelcomeController#welcome()} method provides response body
  */
+@Controller
 public class WelcomeController {
 
+    @ResponseBody
+    @GetMapping("/welcome")
     public String welcome() {
         return "Welcome to Spring MVC!";
     }