完成代码

src/main/java/com/shr/controller/IndexController.java

@@ -3,13 +3,15 @@ package com.shr.controller;
 import java.util.Map;
 
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
+@RequestMapping("/index")
 public class IndexController {
 	
     @GetMapping("/")
     public String index(Map<String, Object> model) {
-        return "welcome";
+        return "index";
     }
 }