Merge pull request #5671 from Doha2012/master

RequestParam annotation

spring-mvc-simple/pom.xml

@@ -20,10 +20,6 @@
             <artifactId>spring-oxm</artifactId>
             <version>${spring-oxm.version}</version>
         </dependency>
-        <dependency>
-    <groupId>org.springframework</groupId>
-    <artifactId>spring-context-support</artifactId>
-</dependency>
 <dependency>
     <groupId>com.sun.mail</groupId>
     <artifactId>javax.mail</artifactId>

spring-mvc-simple/src/main/java/com/baeldung/spring/configuration/ApplicationConfiguration.java

@@ -1,7 +1,9 @@
 package com.baeldung.spring.configuration;
 
-import com.baeldung.spring.controller.rss.ArticleRssFeedViewResolver;
-import com.baeldung.spring.controller.rss.JsonChannelHttpMessageConverter;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
+
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
@@ -21,13 +23,12 @@ import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 import org.springframework.web.servlet.view.ContentNegotiatingViewResolver;
 import org.springframework.web.servlet.view.InternalResourceViewResolver;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Properties;
+import com.baeldung.spring.controller.rss.ArticleRssFeedViewResolver;
+import com.baeldung.spring.controller.rss.JsonChannelHttpMessageConverter;
 
 @Configuration
 @EnableWebMvc
-@ComponentScan(basePackages = { "com.baeldung.springmvcforms", "com.baeldung.spring.controller", "com.baeldung.spring.validator", "com.baeldung.spring.mail" })
+@ComponentScan(basePackages = { "com.baeldung.springmvcforms", "com.baeldung.spring.controller", "com.baeldung.spring.validator", "com.baeldung.spring.mail", "com.baeldung.spring.service" })
 public class ApplicationConfiguration implements WebMvcConfigurer {
 
     @Override

spring-mvc-simple/src/main/java/com/baeldung/spring/configuration/PushConfiguration.java

@@ -8,9 +8,10 @@ import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 import org.springframework.web.servlet.view.InternalResourceViewResolver;
 
+// needs HTTP 2 https://github.com/spring-projects/spring-framework/wiki/HTTP-2-support
 @Configuration
 @EnableWebMvc
-@ComponentScan(basePackages = "com.baeldung.spring.controller.push")
+@ComponentScan(basePackages = "com.baeldung.spring.push.controller")
 public class PushConfiguration implements WebMvcConfigurer {
 
     @Bean

spring-mvc-simple/src/main/java/com/baeldung/spring/controller/RequestParamController.java

@@ -0,0 +1,79 @@
+package com.baeldung.spring.controller;
+
+import java.util.List;
+import java.util.Map;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+
+@Controller
+public class RequestParamController {
+
+    @GetMapping("/api/foos")
+    @ResponseBody
+    public String getFoos(@RequestParam String id){
+        return "ID: " + id;
+    }
+    
+    @PostMapping("/api/foos")
+    @ResponseBody
+    public String addFoo(@RequestParam(name = "id") String fooId, @RequestParam String name){ 
+        return "ID: " + fooId;
+    }
+    
+    @GetMapping("/api/foos2")
+    @ResponseBody
+    public String getFoos2(@RequestParam(required = false) String id){ 
+        return "ID: " + id;
+    }
+    
+    @GetMapping("/api/foos3")
+    @ResponseBody
+    public String getFoos3(@RequestParam(defaultValue = "test") String id){
+        return "ID: " + id;
+    }
+    
+    @PostMapping("/api/foos1")
+    @ResponseBody
+    public String updateFoos(@RequestParam Map<String,String> allParams){
+        return "Parameters are " + allParams.entrySet();
+    }
+    
+    @GetMapping("/api/foos4")
+    @ResponseBody
+    public String getFoos4(@RequestParam List<String> id){
+        return "ID are " + id;
+    }
+    
+    @GetMapping("/foos/{id}")
+    @ResponseBody
+    public String getFooById(@PathVariable String id){
+        return "ID: " + id;
+    }
+    
+    @GetMapping("/foos")
+    @ResponseBody
+    public String getFooByIdUsingQueryParam(@RequestParam String id){
+        return "ID: " + id;
+    }
+    
+    @GetMapping({"/myfoos/optional", "/myfoos/optional/{id}"})
+    @ResponseBody
+    public String getFooByOptionalId(@PathVariable(required = false) String id){
+        return "ID: " + id;
+    }
+    
+    @GetMapping("/myfoos/optionalParam")
+    @ResponseBody
+    public String getFooByOptionalIdUsingQueryParam(@RequestParam(required = false) String id){
+        return "ID: " + id;
+    }
+    
+    
+    
+}

spring-mvc-simple/src/main/java/com/baeldung/spring/push/controller/PushController.java

@@ -1,4 +1,4 @@
-package com.baeldung.spring.controller.push;
+package com.baeldung.spring.push.controller;
 
 import javax.servlet.http.PushBuilder;