upgrade druid version

Author: SunPengWan

dss-appconn/appconns/dss-datachecker-appconn/pom.xml

@@ -101,7 +101,6 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
-            <version>1.0.28</version>
         </dependency>
         <dependency>
             <groupId>com.webank.wedatasphere.dss</groupId>

dss-appconn/appconns/dss-eventchecker-appconn/pom.xml

@@ -86,7 +86,6 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
-            <version>1.0.28</version>
         </dependency>
 
         <dependency>

dss-apps/dss-data-api/dss-data-api-server/pom.xml

@@ -111,7 +111,6 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
-            <version>1.1.9</version>
         </dependency>
         <dependency>
             <groupId>com.webank.wedatasphere.dss</groupId>

dss-apps/dss-data-governance/dss-data-asset-server/pom.xml

@@ -144,7 +144,6 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
-            <version>1.1.9</version>
         </dependency>
     </dependencies>
 

dss-apps/dss-data-governance/dss-data-governance-common/pom.xml

@@ -60,7 +60,6 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
-            <version>1.1.9</version>
         </dependency>
     </dependencies>
 

pom.xml

@@ -62,6 +62,7 @@
         <commons.lang.version>2.6</commons.lang.version>
         <xstream.version>1.4.20</xstream.version>
         <jersey.version>2.30.1</jersey.version>
+        <druid.version>1.2.4</druid.version>
     </properties>
 
     <dependencyManagement>
@@ -116,6 +117,13 @@
                 <groupId>com.thoughtworks.xstream</groupId>
                 <version>${xstream.version}</version>
             </dependency>
+
+            <dependency>
+                <groupId>com.alibaba</groupId>
+                <artifactId>druid</artifactId>
+                <version>${druid.version}</version>
+            </dependency>
+
         </dependencies>
     </dependencyManagement>
     <build>