数据连接建立时，执行validateConnection操作

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@207 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/pool/DruidDataSource.java

@@ -17,7 +17,6 @@ package com.alibaba.druid.pool;
 
 import java.sql.Connection;
 import java.sql.Driver;
-import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.ArrayList;
@@ -181,30 +180,6 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
         return this.activeConnections.keySet();
     }
 
-    private boolean testConnection(Connection conn) {
-        String query = getValidationQuery();
-        if (query == null || query.length() == 0) {
-            return true;
-        }
-
-        Statement stmt = null;
-        ResultSet rs = null;
-        try {
-            stmt = conn.createStatement();
-            rs = stmt.executeQuery(query);
-            if (rs.next()) {
-                return true;
-            } else {
-                return false;
-            }
-        } catch (SQLException e) {
-            return false;
-        } finally {
-            JdbcUtils.close(rs);
-            JdbcUtils.close(stmt);
-        }
-    }
-
     @Override
     public Connection getConnection() throws SQLException {
         init();