update

mec-student/src/main/java/com/ym/mec/student/controller/StudentDemoGroupController.java

@@ -37,7 +37,7 @@ public class StudentDemoGroupController extends BaseController {
 
     @ApiOperation(value = "试听课列表获取")
     @PostMapping("/queryStudentDemoGroups")
-    public Object queryStudentDemoGroups(StudentDemoGroupQueryInfo queryInfo){
+    public Object queryStudentDemoGroups(@RequestBody StudentDemoGroupQueryInfo queryInfo){
         return succeed(demoGroupService.queryStudentDemoGroups(queryInfo));
     }