/*
* Copyright 1999-2017 Alibaba Group Holding Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.alibaba.druid.pool;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Random;
import junit.framework.TestCase;
import com.alibaba.druid.util.JdbcUtils;
public class TestPoolStatement extends TestCase {
private DruidDataSource dataSource;
protected void setUp() throws Exception {
dataSource = new DruidDataSource();
dataSource.setUrl("jdbc:oracle:thin:@a.b.c.d:1521:testconn");
dataSource.setInitialSize(1);
dataSource.setMaxActive(14);
dataSource.setMaxIdle(14);
dataSource.setMinIdle(1);
dataSource.setMinEvictableIdleTimeMillis(300 * 1000); // 300 / 10
dataSource.setTimeBetweenEvictionRunsMillis(180 * 1000); // 180 / 10
dataSource.setTestWhileIdle(false);
dataSource.setTestOnBorrow(false);
dataSource.setValidationQuery("SELECT 1");
dataSource.setFilters("stat");
dataSource.setPoolPreparedStatements(true);
dataSource.setUsername("alibaba");
dataSource.setPassword("alibaba");
}
public void test_0() throws Exception {
stat();
long startMillis = System.currentTimeMillis();
for (int i = 0; i < 1000 * 5; ++i) {
exec();
}
long millis = System.currentTimeMillis() - startMillis;
stat();
System.out.println();
System.out.println("millis : " + millis);
}
private void stat() throws SQLException {
Connection conn = dataSource.getConnection();
String sql = "SELECT sysdate,name,value FROM V$SYSSTAT WHERE NAME IN ('parse count (total)', 'execute count')";
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(sql);
JdbcUtils.printResultSet(rs);
rs.close();
stmt.close();
conn.close();
}
private void exec() throws SQLException {
Connection conn = dataSource.getConnection();
String sql = "select * from ALIBABA.ORDER_MAIN WHERE ID = ?";
PreparedStatement stmt = conn.prepareStatement(sql);
stmt.setLong(1, new Random().nextInt(1000 * 100));
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
}
rs.close();
stmt.close();
conn.close();
}
}