【优化】使用Thymeleaf渲染

src/main/java/com/corewing/app/modules/admin/SysMainController.java

@@ -0,0 +1,24 @@
+package com.corewing.app.modules.admin;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
+@Controller
+public class SysMainController {
+
+    @GetMapping({"/", "/index.html"})
+    public String loading() {
+        return "/admin/loading";
+    }
+
+    @GetMapping("/admin/login.html")
+    public String login() {
+        return "/admin/login";
+    }
+
+    @GetMapping("/admin/index.html")
+    public String adminIndex() {
+        return "/admin/index";
+    }
+
+}