Готова

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

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+
+
+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;
+    }
+
+
+}