add mysql-driver 6.0.x support

pom.xml

@@ -1,13 +1,15 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
+
 <!--
 	<parent>
 		<groupId>com.alibaba</groupId>
 		<artifactId>parent-pom</artifactId>
 		<version>1.0.0-SNAPSHOT</version>
 	</parent>
--->	
+-->
+	
 	<groupId>com.alibaba</groupId>
 	<artifactId>druid</artifactId>
 	<version>1.0.24-SNAPSHOT</version>
@@ -473,7 +475,7 @@
 		<dependency>
 			<groupId>mysql</groupId>
 			<artifactId>mysql-connector-java</artifactId>
-			<version>5.1.38</version>
+			<version>6.0.3</version>
 			<scope>provided</scope>
 		</dependency>
 		<dependency>

src/main/java/com/alibaba/druid/pool/vendor/MySqlValidConnectionChecker.java

@@ -45,6 +45,10 @@ public class MySqlValidConnectionChecker extends ValidConnectionCheckerAdapter i
     public MySqlValidConnectionChecker(){
         try {
             clazz = Utils.loadClass("com.mysql.jdbc.MySQLConnection");
+            if (clazz == null) {
+                clazz = Utils.loadClass("com.mysql.cj.jdbc.ConnectionImpl");
+            }
+
             if (clazz != null) {
                 ping = clazz.getMethod("pingInternal", boolean.class, int.class);
             }

src/test/java/com/alibaba/druid/pool/mysql/MySqlTest.java

@@ -2,8 +2,11 @@ package com.alibaba.druid.pool.mysql;
 
 import com.alibaba.druid.pool.DruidDataSource;
 import junit.framework.TestCase;
+import org.junit.Assert;
 
 import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.Statement;
 
 /**
  * Created by wenshao on 16/8/5.
@@ -13,12 +16,12 @@ public class MySqlTest extends TestCase {
 
     protected void setUp() throws Exception {
         dataSource = new DruidDataSource();
-        dataSource.setUrl("jdbc:mysql://a.b.c.e:3906/");
-        dataSource.setUsername("a");
-        dataSource.setPassword("b");
+        dataSource.setUrl("jdbc:mysql://raspberrypi_mysql:3306/druid_test_db?allowMultiQueries=true");
+        dataSource.setUsername("druid_test");
+        dataSource.setPassword("druid_test");
         dataSource.setFilters("log4j");
         dataSource.setValidationQuery("SELECT 1");
-        dataSource.setTestOnBorrow(false);
+        dataSource.setTestOnBorrow(true);
         dataSource.setTestWhileIdle(true);
     }
 
@@ -28,6 +31,25 @@ public class MySqlTest extends TestCase {
 
     public void test_mysql() throws Exception {
         Connection connection = dataSource.getConnection();
+
+        System.out.println("----------- : " + connection.unwrap(Connection.class).getClass());
+
+        Statement stmt = connection.createStatement();
+        stmt.execute("select 1;select 1");
+
+        ResultSet rs = stmt.getResultSet();
+        Assert.assertFalse(rs.isClosed());
+
+        Assert.assertTrue(stmt.getMoreResults());
+        Assert.assertTrue(rs.isClosed());
+
+        ResultSet rs2 = stmt.getResultSet();
+        Assert.assertFalse(rs2.isClosed());
+        rs2.close();
+        Assert.assertTrue(rs2.isClosed());
+
+        stmt.close();
+
         connection.close();
     }
 }