refactor mysql dependency to test scope for core

sharding-jdbc-core/pom.xml

@@ -42,20 +42,6 @@
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
         </dependency>
-        <dependency>
-            <groupId>commons-dbcp</groupId>
-            <artifactId>commons-dbcp</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>commons-pool</groupId>
-            <artifactId>commons-pool</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>mysql</groupId>
-            <artifactId>mysql-connector-java</artifactId>
-        </dependency>
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
@@ -72,6 +58,21 @@
             <groupId>io.dropwizard.metrics</groupId>
             <artifactId>metrics-core</artifactId>
         </dependency>
+        <dependency>
+            <groupId>commons-dbcp</groupId>
+            <artifactId>commons-dbcp</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>commons-pool</groupId>
+            <artifactId>commons-pool</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>

sharding-jdbc-core/src/test/java/com/dangdang/ddframe/rdb/sharding/jdbc/adapter/PreparedStatementAdapterTest.java

@@ -20,7 +20,6 @@ package com.dangdang.ddframe.rdb.sharding.jdbc.adapter;
 import com.dangdang.ddframe.rdb.integrate.db.AbstractShardingDataBasesOnlyDBUnitTest;
 import com.dangdang.ddframe.rdb.sharding.jdbc.ShardingConnection;
 import com.dangdang.ddframe.rdb.sharding.jdbc.ShardingPreparedStatement;
-import com.mysql.jdbc.Blob;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -32,6 +31,7 @@ import java.io.Reader;
 import java.io.Serializable;
 import java.io.StringReader;
 import java.math.BigDecimal;
+import java.sql.Blob;
 import java.sql.Clob;
 import java.sql.Date;
 import java.sql.PreparedStatement;