src/main/java/com/example/demo/Controller/Controllers.java

@@ -1,35 +0,0 @@
-
-
-package com.example.demo.Controller;
-
-import org.springframework.web.bind.annotation.*;
-
-@RestController
-@CrossOrigin
-public class Controllers {
-    @GetMapping("/plus")
-    public @ResponseBody Integer Plus (@RequestParam (required = false, defaultValue = "0") int val1,
-                                       @RequestParam (required = false, defaultValue = "0") int val2){
-        return val1 + val2;
-    }
-
-    @GetMapping("/minus")
-    public @ResponseBody Integer Minus (@RequestParam (required = false, defaultValue = "0") int val1,
-                                        @RequestParam (required = false, defaultValue = "0") int val2){
-        return val1 - val2;
-    }
-
-    @GetMapping("/mult")
-    public @ResponseBody Integer Mult (@RequestParam (required = false, defaultValue = "0") int val1,
-                                       @RequestParam (required = false, defaultValue = "0") int val2){
-        return val1 * val2;
-    }
-
-    @GetMapping("/div")
-    public @ResponseBody Integer Div (@RequestParam (required = false, defaultValue = "0") int val1,
-                                      @RequestParam (required = false, defaultValue = "1") int val2){
-        return val1 / val2;
-    }
-
-
-}

src/main/java/com/example/demo/Controller/Main.java

@@ -0,0 +1,17 @@
+package com.example.demo.Controller;
+
+
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+@Controller
+public class Main {
+
+    @GetMapping
+    public String helloWorld(@RequestParam(name = "name", required = false, defaultValue = "World") String name, Model model){
+        model.addAttribute( "name", name);
+        return "hello-world!";
+    }
+}