Nav修改

src/main/java/com/lovenav/controller/NavController.java

@@ -7,6 +7,7 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 import java.util.HashMap;
+import java.util.List;
 
 @RestController
 public class NavController {
@@ -36,7 +37,7 @@ public class NavController {
     }
 
     @RequestMapping("/selectAllNav")
-    public HashMap<Integer, Object> selectAllNav(){
+    public List<Nav> selectAllNav(){
         return navService.selectAllNav();
     }