[BAEL-18365] Spring rest move 2

2019-11-07 17:58:42 +00:00
parent cd609fd907
commit d2d9db6dda
65 changed files with 1001 additions and 23 deletions
@@ -8,3 +8,4 @@ This module contains articles about Spring Boot with Spring Data
 - [Rendering Exceptions in JSON with Spring](https://www.baeldung.com/spring-exceptions-json)
 - [Disable Spring Data Auto Configuration](https://www.baeldung.com/spring-data-disable-auto-config)
 - [Repositories with Multiple Spring Data Modules](https://www.baeldung.com/spring-multiple-data-modules)
+- [Spring Custom Property Editor](https://www.baeldung.com/spring-mvc-custom-property-editor)
@@ -7,4 +7,8 @@ This module contains articles about administering a Spring Boot runtime
 - [Programmatically Restarting a Spring Boot Application](https://www.baeldung.com/java-restart-spring-boot-app)
 - [Logging HTTP Requests with Spring Boot Actuator HTTP Tracing](https://www.baeldung.com/spring-boot-actuator-http)
 - [How to Disable Console Logging in Spring Boot](https://www.baeldung.com/spring-boot-disable-console-logging)
- - [Spring Boot Embedded Tomcat Logs](https://www.baeldung.com/spring-boot-embedded-tomcat-logs) 
+ - [Spring Boot Embedded Tomcat Logs](https://www.baeldung.com/spring-boot-embedded-tomcat-logs) 
+ - [How to Change the Default Port in Spring Boot](https://www.baeldung.com/spring-boot-change-port)
+ - [Project Configuration with Spring](https://www.baeldung.com/project-configuration-with-spring)
+ - [CORS with Spring](https://www.baeldung.com/spring-cors)
+ - [Spring – Log Incoming Requests](https://www.baeldung.com/spring-http-logging)
@@ -32,6 +32,12 @@
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
+        <!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>2.6</version>
+        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
@@ -0,0 +1,15 @@
+package com.baeldung.sampleapp.config;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@EnableAutoConfiguration
+@ComponentScan("com.baeldung.sampleapp")
+public class MainApplication implements WebMvcConfigurer {
+
+    public static void main(final String[] args) {
+        SpringApplication.run(MainApplication.class, args);
+    }
+}
@@ -0,0 +1,29 @@
+package com.baeldung.sampleapp.config;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.util.CollectionUtils;
+import org.springframework.web.client.RestTemplate;
+
+import com.baeldung.sampleapp.interceptors.RestTemplateHeaderModifierInterceptor;
+
+@Configuration
+public class RestClientConfig {
+
+    @Bean
+    public RestTemplate restTemplate() {
+        RestTemplate restTemplate = new RestTemplate();
+
+        List<ClientHttpRequestInterceptor> interceptors = restTemplate.getInterceptors();
+        if (CollectionUtils.isEmpty(interceptors)) {
+            interceptors = new ArrayList<ClientHttpRequestInterceptor>();
+        }
+        interceptors.add(new RestTemplateHeaderModifierInterceptor());
+        restTemplate.setInterceptors(interceptors);
+        return restTemplate;
+    }
+}
@@ -0,0 +1,42 @@
+package com.baeldung.sampleapp.config;
+
+import java.text.SimpleDateFormat;
+import java.util.List;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.converter.HttpMessageConverter;
+import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
+import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+/*
+ * Please note that main web configuration is in src/main/webapp/WEB-INF/api-servlet.xml
+ */
+@Configuration
+@EnableWebMvc
+@ComponentScan({ "com.baeldung.sampleapp.web" })
+public class WebConfig implements WebMvcConfigurer {
+
+    public WebConfig() {
+        super();
+    }
+
+    /*
+    @Override
+    public void configureMessageConverters(final List<HttpMessageConverter<?>> messageConverters) {
+        final Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
+        builder.indentOutput(true)
+            .dateFormat(new SimpleDateFormat("dd-MM-yyyy hh:mm"));
+        messageConverters.add(new MappingJackson2HttpMessageConverter(builder.build()));
+        // messageConverters.add(new MappingJackson2XmlHttpMessageConverter(builder.createXmlMapper(true).build()));
+
+        // messageConverters.add(new MappingJackson2HttpMessageConverter());
+    
+        // messageConverters.add(new ProtobufHttpMessageConverter());
+    
+    }
+    
+    */
+}
@@ -0,0 +1,18 @@
+package com.baeldung.sampleapp.interceptors;
+
+import java.io.IOException;
+
+import org.springframework.http.HttpRequest;
+import org.springframework.http.client.ClientHttpRequestExecution;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.http.client.ClientHttpResponse;
+
+public class RestTemplateHeaderModifierInterceptor implements ClientHttpRequestInterceptor {
+
+    @Override
+    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
+        ClientHttpResponse response = execution.execute(request, body); 
+        response.getHeaders().add("Foo", "bar");
+        return response;
+    }
+}
@@ -0,0 +1,28 @@
+package com.baeldung.sampleapp.repository;
+
+import java.util.Map;
+
+import com.baeldung.sampleapp.web.dto.HeavyResource;
+import com.baeldung.sampleapp.web.dto.HeavyResourceAddressOnly;
+
+public class HeavyResourceRepository {
+
+    public void save(HeavyResource heavyResource) {
+    }
+
+    public void save(HeavyResourceAddressOnly partialUpdate) {
+
+    }
+
+    public void save(Map<String, Object> updates, String id) {
+
+    }
+
+    public void save(HeavyResource heavyResource, String id) {
+
+    }
+
+    public void save(HeavyResourceAddressOnly partialUpdate, String id) {
+
+    }
+}
@@ -0,0 +1,47 @@
+package com.baeldung.sampleapp.web.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+@Controller
+@RequestMapping(value = "/ex")
+public class BarMappingExamplesController {
+
+    public BarMappingExamplesController() {
+        super();
+    }
+
+    // API
+
+    // with @RequestParam
+
+    @RequestMapping(value = "/bars")
+    @ResponseBody
+    public String getBarBySimplePathWithRequestParam(@RequestParam("id") final long id) {
+        return "Get a specific Bar with id=" + id;
+    }
+
+    @RequestMapping(value = "/bars", params = "id")
+    @ResponseBody
+    public String getBarBySimplePathWithExplicitRequestParam(@RequestParam("id") final long id) {
+        return "Get a specific Bar with id=" + id;
+    }
+
+    @RequestMapping(value = "/bars", params = { "id", "second" })
+    @ResponseBody
+    public String getBarBySimplePathWithExplicitRequestParams(@RequestParam("id") final long id) {
+        return "Get a specific Bar with id=" + id;
+    }
+
+    // with @PathVariable
+
+    @RequestMapping(value = "/bars/{numericId:[\\d]+}")
+    @ResponseBody
+    public String getBarsBySimplePathWithPathVariable(@PathVariable final long numericId) {
+        return "Get a specific Bar with id=" + numericId;
+    }
+
+}
@@ -0,0 +1,17 @@
+package com.baeldung.sampleapp.web.controller;
+
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.baeldung.sampleapp.web.dto.Company;
+
+@RestController
+public class CompanyController {
+
+    @RequestMapping(value = "/companyRest", produces = MediaType.APPLICATION_JSON_VALUE)
+    public Company getCompanyRest() {
+        final Company company = new Company(1, "Xpto");
+        return company;
+    }
+}
@@ -0,0 +1,85 @@
+package com.baeldung.sampleapp.web.controller;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.function.Consumer;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.context.request.async.DeferredResult;
+
+@RestController
+public class DeferredResultController {
+
+    private final static Logger LOG = LoggerFactory.getLogger(DeferredResultController.class);
+
+    @GetMapping("/async-deferredresult")
+    public DeferredResult<ResponseEntity<?>> handleReqDefResult(Model model) {
+        LOG.info("Received request");
+        DeferredResult<ResponseEntity<?>> deferredResult = new DeferredResult<>();
+
+        deferredResult.onCompletion(() -> LOG.info("Processing complete"));
+
+        CompletableFuture.supplyAsync(() -> {
+            LOG.info("Processing in separate thread");
+            try {
+                Thread.sleep(6000);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+            return "OK";
+        })
+            .whenCompleteAsync((result, exc) -> deferredResult.setResult(ResponseEntity.ok(result)));
+
+        LOG.info("Servlet thread freed");
+        return deferredResult;
+    }
+
+    @GetMapping("/process-blocking")
+    public ResponseEntity<?> handleReqSync(Model model) {
+        // ...
+        return ResponseEntity.ok("ok");
+    }
+
+    @GetMapping("/async-deferredresult-timeout")
+    public DeferredResult<ResponseEntity<?>> handleReqWithTimeouts(Model model) {
+        LOG.info("Received async request with a configured timeout");
+        DeferredResult<ResponseEntity<?>> deferredResult = new DeferredResult<>(500l);
+        deferredResult.onTimeout(() -> deferredResult.setErrorResult(ResponseEntity.status(HttpStatus.REQUEST_TIMEOUT)
+            .body("Request timeout occurred.")));
+
+        CompletableFuture.supplyAsync(() -> {
+            LOG.info("Processing in separate thread");
+            try {
+                Thread.sleep(6000);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+            return "error";
+        })
+            .whenCompleteAsync((result, exc) -> deferredResult.setResult(ResponseEntity.ok(result)));
+        LOG.info("servlet thread freed");
+        return deferredResult;
+    }
+
+    @GetMapping("/async-deferredresult-error")
+    public DeferredResult<ResponseEntity<?>> handleAsyncFailedRequest(Model model) {
+        LOG.info("Received async request with a configured error handler");
+        DeferredResult<ResponseEntity<?>> deferredResult = new DeferredResult<>();
+        deferredResult.onError(new Consumer<Throwable>() {
+            @Override
+            public void accept(Throwable t) {
+                deferredResult.setErrorResult(ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR)
+                    .body("An error occurred."));
+            }
+
+        });
+        LOG.info("servlet thread freed");
+        return deferredResult;
+    }
+
+}
@@ -0,0 +1,42 @@
+package com.baeldung.sampleapp.web.controller;
+
+
+import java.util.Map;
+
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.baeldung.sampleapp.repository.HeavyResourceRepository;
+import com.baeldung.sampleapp.web.dto.HeavyResource;
+import com.baeldung.sampleapp.web.dto.HeavyResourceAddressOnly;
+
+@RestController
+public class HeavyResourceController {
+
+    private HeavyResourceRepository heavyResourceRepository = new HeavyResourceRepository();
+
+    @RequestMapping(value = "/heavyresource/{id}", method = RequestMethod.PUT, consumes = MediaType.APPLICATION_JSON_VALUE)
+    public ResponseEntity<?> saveResource(@RequestBody HeavyResource heavyResource, @PathVariable("id") String id) {
+        heavyResourceRepository.save(heavyResource, id);
+        return ResponseEntity.ok("resource saved");
+    }
+
+    @RequestMapping(value = "/heavyresource/{id}", method = RequestMethod.PATCH, consumes = MediaType.APPLICATION_JSON_VALUE)
+    public ResponseEntity<?> partialUpdateName(@RequestBody HeavyResourceAddressOnly partialUpdate, @PathVariable("id") String id) {
+        heavyResourceRepository.save(partialUpdate, id);
+        return ResponseEntity.ok("resource address updated");
+    }
+
+    @RequestMapping(value = "/heavyresource2/{id}", method = RequestMethod.PATCH, consumes = MediaType.APPLICATION_JSON_VALUE)
+    public ResponseEntity<?> partialUpdateGeneric(@RequestBody Map<String, Object> updates,
+                                                  @PathVariable("id") String id) {
+        heavyResourceRepository.save(updates, id);
+        return ResponseEntity.ok("resource updated");
+    }
+
+}
@@ -0,0 +1,39 @@
+package com.baeldung.sampleapp.web.controller;
+
+import java.util.Date;
+
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.baeldung.sampleapp.web.dto.Item;
+import com.baeldung.sampleapp.web.dto.ItemManager;
+import com.baeldung.sampleapp.web.dto.Views;
+import com.fasterxml.jackson.annotation.JsonView;
+
+@RestController
+public class ItemController {
+
+    @JsonView(Views.Public.class)
+    @RequestMapping("/items/{id}")
+    public Item getItemPublic(@PathVariable final int id) {
+        return ItemManager.getById(id);
+    }
+
+    @JsonView(Views.Internal.class)
+    @RequestMapping("/items/internal/{id}")
+    public Item getItemInternal(@PathVariable final int id) {
+        return ItemManager.getById(id);
+    }
+
+    @RequestMapping("/date")
+    public Date getCurrentDate() throws Exception {
+        return new Date();
+    }
+
+    @RequestMapping("/delay/{seconds}")
+    public void getCurrentTime(@PathVariable final int seconds) throws Exception {
+
+        Thread.sleep(seconds * 1000);
+    }
+}
@@ -0,0 +1,85 @@
+package com.baeldung.sampleapp.web.controller;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.servlet.http.HttpServletResponse;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
+
+import com.baeldung.sampleapp.web.dto.Foo;
+import com.baeldung.sampleapp.web.exception.ResourceNotFoundException;
+
+@Controller
+@RequestMapping(value = "/foos")
+public class MyFooController {
+
+    private final Map<Long, Foo> myfoos;
+
+    public MyFooController() {
+        super();
+        myfoos = new HashMap<Long, Foo>();
+        myfoos.put(1L, new Foo(1L, "sample foo"));
+    }
+
+    // API - read
+
+    @RequestMapping(method = RequestMethod.GET, produces = { "application/json" })
+    @ResponseBody
+    public Collection<Foo> findAll() {
+        return myfoos.values();
+    }
+
+    @RequestMapping(method = RequestMethod.GET, value = "/{id}", produces = { "application/json" })
+    @ResponseBody
+    public Foo findById(@PathVariable final long id) {
+        final Foo foo = myfoos.get(id);
+        if (foo == null) {
+            throw new ResourceNotFoundException();
+        }
+        return foo;
+    }
+
+    // API - write
+
+    @RequestMapping(method = RequestMethod.PUT, value = "/{id}")
+    @ResponseStatus(HttpStatus.OK)
+    @ResponseBody
+    public Foo updateFoo(@PathVariable("id") final long id, @RequestBody final Foo foo) {
+        myfoos.put(id, foo);
+        return foo;
+    }
+
+    @RequestMapping(method = RequestMethod.PATCH, value = "/{id}")
+    @ResponseStatus(HttpStatus.OK)
+    public void updateFoo2(@PathVariable("id") final long id, @RequestBody final Foo foo) {
+        myfoos.put(id, foo);
+    }
+
+    @RequestMapping(method = RequestMethod.POST)
+    @ResponseStatus(HttpStatus.CREATED)
+    @ResponseBody
+    public Foo createFoo(@RequestBody final Foo foo, HttpServletResponse response) {
+        myfoos.put(foo.getId(), foo);
+        response.setHeader("Location", ServletUriComponentsBuilder.fromCurrentRequest()
+            .path("/" + foo.getId())
+            .toUriString());
+        return foo;
+    }
+
+    @RequestMapping(method = RequestMethod.DELETE, value = "/{id}")
+    @ResponseStatus(HttpStatus.OK)
+    public void deleteById(@PathVariable final long id) {
+        myfoos.remove(id);
+    }
+
+}
@@ -0,0 +1,33 @@
+package com.baeldung.sampleapp.web.controller;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.baeldung.sampleapp.web.dto.PactDto;
+
+@RestController
+public class PactController {
+
+    List<PactDto> pacts = new ArrayList<>();
+
+    @GetMapping(value = "/pact", produces = MediaType.APPLICATION_JSON_VALUE)
+    @ResponseBody
+    public PactDto getPact() {
+        return new PactDto(true, "tom");
+    }
+
+    @PostMapping("/pact")
+    @ResponseStatus(HttpStatus.CREATED)
+    public void createPact(PactDto pact) {
+        pacts.add(pact);
+    }
+
+}
@@ -0,0 +1,74 @@
+package com.baeldung.sampleapp.web.controller;
+
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import com.baeldung.sampleapp.web.dto.Foo;
+
+// used to test HttpClientPostingTest
+@RestController
+public class SimplePostController {
+
+    @RequestMapping(value = "/users", method = RequestMethod.POST)
+    public String postUser(@RequestParam final String username, @RequestParam final String password) {
+        return "Success" + username;
+    }
+
+    @RequestMapping(value = "/users/detail", method = RequestMethod.POST)
+    public String postUserDetail(@RequestBody final Foo entity) {
+        return "Success" + entity.getId();
+    }
+
+    @RequestMapping(value = "/users/multipart", method = RequestMethod.POST)
+    public String uploadFile(@RequestParam final String username, @RequestParam final String password, @RequestParam("file") final MultipartFile file) {
+        if (!file.isEmpty()) {
+            try {
+                final DateFormat dateFormat = new SimpleDateFormat("yyyy_MM_dd_HH.mm.ss");
+                final String fileName = dateFormat.format(new Date());
+                final File fileServer = new File(fileName);
+                fileServer.createNewFile();
+                final byte[] bytes = file.getBytes();
+                final BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(fileServer));
+                stream.write(bytes);
+                stream.close();
+                return "You successfully uploaded " + username;
+            } catch (final Exception e) {
+                return "You failed to upload " + e.getMessage();
+            }
+        } else {
+            return "You failed to upload because the file was empty.";
+        }
+    }
+
+    @RequestMapping(value = "/users/upload", method = RequestMethod.POST)
+    public String postMultipart(@RequestParam("file") final MultipartFile file) {
+        if (!file.isEmpty()) {
+            try {
+                final DateFormat dateFormat = new SimpleDateFormat("yyyy_MM_dd_HH.mm.ss");
+                final String fileName = dateFormat.format(new Date());
+                final File fileServer = new File(fileName);
+                fileServer.createNewFile();
+                final byte[] bytes = file.getBytes();
+                final BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(fileServer));
+                stream.write(bytes);
+                stream.close();
+                return "You successfully uploaded ";
+            } catch (final Exception e) {
+                return "You failed to upload " + e.getMessage();
+            }
+        } else {
+            return "You failed to upload because the file was empty.";
+        }
+    }
+}
@@ -0,0 +1,25 @@
+package com.baeldung.sampleapp.web.controller.mediatypes;
+
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.baeldung.sampleapp.web.dto.BaeldungItem;
+import com.baeldung.sampleapp.web.dto.BaeldungItemV2;
+
+@RestController
+@RequestMapping(value = "/", produces = "application/vnd.baeldung.api.v1+json")
+public class CustomMediaTypeController {
+
+    @RequestMapping(method = RequestMethod.GET, value = "/public/api/items/{id}", produces = "application/vnd.baeldung.api.v1+json")
+    public @ResponseBody BaeldungItem getItem(@PathVariable("id") String id) {
+        return new BaeldungItem("itemId1");
+    }
+
+    @RequestMapping(method = RequestMethod.GET, value = "/public/api/items/{id}", produces = "application/vnd.baeldung.api.v2+json")
+    public @ResponseBody BaeldungItemV2 getItemSecondAPIVersion(@PathVariable("id") String id) {
+        return new BaeldungItemV2("itemName");
+    }
+}
@@ -0,0 +1,68 @@
+package com.baeldung.sampleapp.web.controller.redirect;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.ModelMap;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.servlet.ModelAndView;
+import org.springframework.web.servlet.View;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
+import org.springframework.web.servlet.view.RedirectView;
+
+@Controller
+@RequestMapping("/")
+public class RedirectController {
+
+    @RequestMapping(value = "/redirectWithXMLConfig", method = RequestMethod.GET)
+    public ModelAndView redirectWithUsingXMLConfig(final ModelMap model) {
+        model.addAttribute("attribute", "redirectWithXMLConfig");
+        return new ModelAndView("RedirectedUrl", model);
+    }
+
+    @RequestMapping(value = "/redirectWithRedirectPrefix", method = RequestMethod.GET)
+    public ModelAndView redirectWithUsingRedirectPrefix(final ModelMap model) {
+        model.addAttribute("attribute", "redirectWithRedirectPrefix");
+        return new ModelAndView("redirect:/redirectedUrl", model);
+    }
+
+    @RequestMapping(value = "/redirectWithRedirectAttributes", method = RequestMethod.GET)
+    public RedirectView redirectWithRedirectAttributes(final RedirectAttributes redirectAttributes) {
+        redirectAttributes.addFlashAttribute("flashAttribute", "redirectWithRedirectAttributes");
+        redirectAttributes.addAttribute("attribute", "redirectWithRedirectAttributes");
+        return new RedirectView("redirectedUrl");
+    }
+
+    @RequestMapping(value = "/redirectWithRedirectView", method = RequestMethod.GET)
+    public RedirectView redirectWithUsingRedirectView(final ModelMap model) {
+        model.addAttribute("attribute", "redirectWithRedirectView");
+        return new RedirectView("redirectedUrl");
+    }
+
+    @RequestMapping(value = "/forwardWithForwardPrefix", method = RequestMethod.GET)
+    public ModelAndView forwardWithUsingForwardPrefix(final ModelMap model) {
+        model.addAttribute("attribute", "redirectWithForwardPrefix");
+        return new ModelAndView("forward:/redirectedUrl", model);
+    }
+
+    @RequestMapping(value = "/redirectedUrl", method = RequestMethod.GET)
+    public ModelAndView redirection(final ModelMap model, @ModelAttribute("flashAttribute") final Object flashAttribute) {
+        model.addAttribute("redirectionAttribute", flashAttribute);
+        return new ModelAndView("redirection", model);
+    }
+
+    @RequestMapping(value = "/redirectPostToPost", method = RequestMethod.POST)
+    public ModelAndView redirectPostToPost(HttpServletRequest request) {
+        request.setAttribute(View.RESPONSE_STATUS_ATTRIBUTE, HttpStatus.TEMPORARY_REDIRECT);
+        return new ModelAndView("redirect:/redirectedPostToPost");
+    }
+
+    @RequestMapping(value = "/redirectedPostToPost", method = RequestMethod.POST)
+    public ModelAndView redirectedPostToPost() {
+        return new ModelAndView("redirection");
+    }
+
+}
@@ -0,0 +1,13 @@
+package com.baeldung.sampleapp.web.dto;
+
+public class BaeldungItem {
+    private final String itemId;
+
+    public BaeldungItem(String itemId) {
+        this.itemId = itemId;
+    }
+
+    public String getItemId() {
+        return itemId;
+    }
+}
--- a/Show More
+++ b/Show More