解决跨域问题

src/main/java/com/fdkankan/renderer/controller/SceneController.java

@@ -50,7 +50,7 @@ public class SceneController {
      * @return
      */
     @GetMapping("/{num}")
-    public ResultData detail(@PathVariable("num") String num) throws IOException {
+    public ResultData detail(@PathVariable("num") String num) throws Exception {
         return ResultData.ok(sceneService.getDetail(num));
     }