MOD: change var name

mooctest-site-server/src/main/java/cn/iselab/mooctest/site/web/ctrl/CaseController.java

@@ -99,8 +99,8 @@ public class CaseController extends BaseController {
     }
 
     @RequestMapping(value = UrlConstants.API+"cases", method = RequestMethod.GET)
-    public List<CaseExtendsVO> getCases(@RequestParam(name = "examId", required = false) Long examId) {
-        return caseLogic.getCasesByTaskId(examId);
+    public List<CaseExtendsVO> getCases(@RequestParam(name = "paperId", required = false) Long paperId) {
+        return caseLogic.getCasesByTaskId(paperId);
     }
 
     //--------------------------------------------case 数据迁移---------------------------------------------------------------