...

src/main/java/cn/com/qmth/examcloud/commons/util/DBUtil.java

@@ -46,7 +46,7 @@ public class DBUtil {
 	 * @return
 	 */
 	public static DataSource initDataSource(final String dataSourceName) {
-		Class<?> c;
+		Class<?> c = null;
 		try {
 			c = Class.forName("com.mchange.v2.c3p0.ComboPooledDataSource");
 		} catch (ClassNotFoundException e) {