diff --git a/pom.xml b/pom.xml
index b66f69d..aaa6cb5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -138,6 +138,13 @@
             <version>1.1.71.android</version>
         </dependency>
 
+        <dependency>
+            <groupId>org.mariadb.jdbc</groupId>
+            <artifactId>mariadb-java-client</artifactId>
+            <version>2.5.4</version>
+        </dependency>
+
+
     </dependencies>
 
     <build>
diff --git a/src/main/java/com/codesdream/ase/component/permission/ASEUsernamePasswordAuthenticationFilter.java b/src/main/java/com/codesdream/ase/component/permission/ASEUsernamePasswordAuthenticationFilter.java
index 7c78ae6..d09f9d2 100644
--- a/src/main/java/com/codesdream/ase/component/permission/ASEUsernamePasswordAuthenticationFilter.java
+++ b/src/main/java/com/codesdream/ase/component/permission/ASEUsernamePasswordAuthenticationFilter.java
@@ -40,7 +40,7 @@ public class ASEUsernamePasswordAuthenticationFilter extends UsernamePasswordAut
         String timestamp =  request.getHeader("timestamp");
 
         // 检查时间戳是否合理(60秒内)
-        if(!timestampExpiredChecker.checkTimestampBeforeMaxTime(timestamp, 60)){
+        if(timestamp == null || !timestampExpiredChecker.checkTimestampBeforeMaxTime(timestamp, 60)){
             throw new AuthenticationServiceException("Timestamp Expired.");
         }
 
diff --git a/src/main/java/com/codesdream/ase/controller/LoginController.java b/src/main/java/com/codesdream/ase/controller/LoginController.java
index db99311..e9c539c 100644
--- a/src/main/java/com/codesdream/ase/controller/LoginController.java
+++ b/src/main/java/com/codesdream/ase/controller/LoginController.java
@@ -61,11 +61,11 @@ public class LoginController {
             // 构造返回对象
             UserLoginCheckerJSONRespond respond = new UserLoginCheckerJSONRespond();
             respond.setUserExist(existStatus);
-            return jsonParameter.getJSONString(respond);
+            return jsonParameter.getJSONStandardRespond200(respond);
         }
         else {
             // 返回失败对象
-            return jsonParameter.getJSONString(new JSONStandardFailedRespond());
+            return jsonParameter.getJSONStandardRespond500("Error");
         }
     }
 
@@ -82,11 +82,11 @@ public class LoginController {
         if(loginChecker.getCheckType().equals("UIDGeneratorChecker")) {
             UserLoginCheckerJSONRespond respond = new UserLoginCheckerJSONRespond();
             respond.setRespondInformation(userService.getUsernameByStudentId(loginChecker.getUsername()));
-            return jsonParameter.getJSONString(respond);
+            return jsonParameter.getJSONStandardRespond200(respond);
         }
         else {
             // 返回失败对象
-            return jsonParameter.getJSONString(new JSONStandardFailedRespond());
+            return jsonParameter.getJSONStandardRespond500("Error");
         }
 
 
diff --git a/src/main/java/com/codesdream/ase/controller/RegisterController.java b/src/main/java/com/codesdream/ase/controller/RegisterController.java
index 01a4835..62ce6b3 100644
--- a/src/main/java/com/codesdream/ase/controller/RegisterController.java
+++ b/src/main/java/com/codesdream/ase/controller/RegisterController.java
@@ -16,10 +16,10 @@ import java.util.Map;
 @Controller
 public class RegisterController {
     @Resource
-    UserService userService;
+    private UserService userService;
 
     @Resource
-    BaseInformationService baseInformationService;
+    private BaseInformationService baseInformationService;
 
     @RequestMapping(value = "/register")
     String registerView(Model model){
diff --git a/src/main/java/com/codesdream/ase/service/BaseInformationService.java b/src/main/java/com/codesdream/ase/service/BaseInformationService.java
index 870a816..072ec94 100644
--- a/src/main/java/com/codesdream/ase/service/BaseInformationService.java
+++ b/src/main/java/com/codesdream/ase/service/BaseInformationService.java
@@ -20,25 +20,25 @@ import java.util.Vector;
 public class BaseInformationService implements IBaseInformationService {
 
     @Resource
-    BaseAdministrativeDivisionRepository administrativeDivisionRepository;
+    private BaseAdministrativeDivisionRepository administrativeDivisionRepository;
 
     @Resource
-    BaseCandidateCategoryRepository candidateCategoryRepository;
+    private BaseCandidateCategoryRepository candidateCategoryRepository;
 
     @Resource
-    BaseCollegeRepository collegeRepository;
+    private BaseCollegeRepository collegeRepository;
 
     @Resource
-    BaseEthnicRepository ethnicRepository;
+    private BaseEthnicRepository ethnicRepository;
 
     @Resource
-    BaseMajorRepository majorRepository;
+    private BaseMajorRepository majorRepository;
 
     @Resource
-    BasePoliticalStatusRepository politicalStatusRepository;
+    private BasePoliticalStatusRepository politicalStatusRepository;
 
     @Resource
-    BaseStudentInfoRepository studentInfoRepository;
+    private BaseStudentInfoRepository studentInfoRepository;
 
     @Override
     public boolean checkAdministrativeDivision(String name) {
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 41c87dc..8693bdc 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -7,14 +7,15 @@ spring.thymeleaf.encoding=UTF-8
 
 spring.jpa.generate-ddl=false
 spring.jpa.show-sql=true
-spring.jpa.hibernate.ddl-auto=none
-spring.jooq.sql-dialect=org.hibernate.dialect.MySQL5InnoDBDialect
+spring.jpa.hibernate.ddl-auto=update
+spring.jooq.sql-dialect=org.hibernate.dialect.MariaDB102Dialect
 spring.jpa.open-in-view=true
 spring.jpa.properties.hibernate.enable_lazy_load_no_trans=true
 
-spring.datasource.url=jdbc:mysql://${MYSQL_HOST:39.100.94.111}:3306/ase?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
+spring.datasource.url=jdbc:mariadb://39.100.94.111:3306/ase?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
 spring.datasource.username=codedream
-spring.datasource.password=zP1+LKi?,{Kyv)uyYgd8
+spring.datasource.password=codedreampasswd
+spring.datasource.driver-class-name=org.mariadb.jdbc.Driver
 
 server.error.whitelabel.enabled=false