mapping work

spring-mvc/src/main/java/org/baeldung/spring/web/config/MvcConfig.java

@@ -9,8 +9,8 @@ import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 @ComponentScan({ "org.baeldung.spring.web.controller" })
 public class MvcConfig {
 
-	public MvcConfig() {
-		super();
-	}
+    public MvcConfig() {
+        super();
+    }
 
 }

spring-mvc/src/main/java/org/baeldung/spring/web/controller/BarController.java

@@ -0,0 +1,37 @@
+package org.baeldung.spring.web.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+@Controller
+public class BarController {
+
+    public BarController() {
+        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;
+    }
+
+}

spring-mvc/src/main/java/org/baeldung/spring/web/controller/FooController.java

@@ -1,6 +1,7 @@
 package org.baeldung.spring.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.RequestMethod;
 import org.springframework.web.bind.annotation.ResponseBody;
@@ -8,28 +9,74 @@ import org.springframework.web.bind.annotation.ResponseBody;
 @Controller
 public class FooController {
 
-	public FooController() {
-		super();
-	}
+    public FooController() {
+        super();
+    }
 
-	// API
+    // API
 
-	@RequestMapping(value = "/foos")
-	@ResponseBody
-	public String getFoos() {
-		return "Get some Foos";
-	}
+    // by paths
 
-	@RequestMapping(value = "/foos", method = RequestMethod.POST)
-	@ResponseBody
-	public String getFoosPost() {
-		return "Post some Foos";
-	}
+    @RequestMapping(value = "/foos")
+    @ResponseBody
+    public String getFoosBySimplePath() {
+        return "Simple Get some Foos";
+    }
 
-	@RequestMapping(value = "/foos", method = RequestMethod.POST, headers = "key=val")
-	@ResponseBody
-	public String getFoosWithHeader() {
-		return "Get some Foos with Header";
-	}
+    // @RequestMapping(value = "/foos")
+    // @ResponseBody
+    // public String getFoosByAdvancedPath() {
+    // return "Advanced Get some Foos";
+    // }
+
+    // with @PathVariable
+
+    @RequestMapping(value = "/foos/{id}")
+    @ResponseBody
+    public String getFoosBySimplePathWithPathVariable(@PathVariable("id") final long id) {
+        return "Get a specific Foo with id=" + id;
+    }
+
+    // other HTTP verbs
+
+    @RequestMapping(value = "/foos", method = RequestMethod.POST)
+    @ResponseBody
+    public String postFoos() {
+        return "Post some Foos";
+    }
+
+    // with headers
+
+    @RequestMapping(value = "/foos", headers = "key=val")
+    @ResponseBody
+    public String getFoosWithHeader() {
+        return "Get some Foos with Header";
+    }
+
+    @RequestMapping(value = "/foos", headers = { "key1=val1", "key2=val2" })
+    @ResponseBody
+    public String getFoosWithHeaders() {
+        return "Get some Foos with Header";
+    }
+
+    // advanced - multiple mappings
+
+    @RequestMapping(value = { "/advanced/bars", "/advanced/foos" })
+    @ResponseBody
+    public String getFoosOrBarsByPath() {
+        return "Advanced - Get some Foos or Bars";
+    }
+
+    @RequestMapping(value = "*")
+    @ResponseBody
+    public String getFallback() {
+        return "Fallback for GET Requests";
+    }
+
+    @RequestMapping(value = "*", method = { RequestMethod.GET, RequestMethod.POST })
+    @ResponseBody
+    public String allFallback() {
+        return "Fallback for All Requests";
+    }
 
 }