Java tutorial
/* * Copyright 1999-2011 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.benckmark.pool; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.text.NumberFormat; import java.util.concurrent.CountDownLatch; import javax.sql.DataSource; import junit.framework.TestCase; import org.apache.commons.dbcp.BasicDataSource; import org.springframework.util.Assert; import com.alibaba.druid.TestUtil; import com.alibaba.druid.pool.DruidDataSource; import com.alibaba.druid.util.JdbcUtils; public class Oracle_Case4 extends TestCase { private String jdbcUrl; private String user; private String password; private String driverClass; private int maxIdle = 40; private int maxActive = 50; private int maxWait = 5000; private String validationQuery = "SELECT 1 FROM DUAL"; private int threadCount = 1; private int loopCount = 5; final int LOOP_COUNT = 1000 * 1; private boolean testOnBorrow = false; private boolean preparedStatementCache = true; private int preparedStatementCacheSize = 50; private String properties = "defaultRowPrefetch=50"; private String SQL; protected void setUp() throws Exception { // jdbcUrl = "jdbc:oracle:thin:@a.b.c.d:1521:ocnauto"; // user = "alibaba"; // password = "ccbuauto"; // SQL = "SELECT * FROM WP_ORDERS WHERE ID = ?"; jdbcUrl = "jdbc:oracle:thin:@a.b.c.d:1521:ointest3"; user = "alibaba"; password = "deYcR7facWSJtCuDpm2r"; SQL = "SELECT * FROM AV_INFO WHERE ID = ?"; driverClass = "oracle.jdbc.driver.OracleDriver"; } public void test_druid() throws Exception { DruidDataSource dataSource = new DruidDataSource(); dataSource.setMaxActive(maxActive); dataSource.setMaxIdle(maxIdle); dataSource.setMaxWait(maxWait); dataSource.setPoolPreparedStatements(preparedStatementCache); dataSource.setMaxOpenPreparedStatements(preparedStatementCacheSize); dataSource.setDriverClassName(driverClass); dataSource.setUrl(jdbcUrl); dataSource.setUsername(user); dataSource.setPassword(password); dataSource.setValidationQuery(validationQuery); dataSource.setTestOnBorrow(testOnBorrow); dataSource.setConnectionProperties(properties); dataSource.setUseOracleImplicitCache(true); dataSource.init(); // printAV_INFO(dataSource); // printTables(dataSource); // printWP_ORDERS(dataSource); for (int i = 0; i < loopCount; ++i) { p0(dataSource, "druid", threadCount); } System.out.println(); } public void test_dbcp() throws Exception { final BasicDataSource dataSource = new BasicDataSource(); dataSource.setMaxActive(maxActive); dataSource.setMaxIdle(maxIdle); dataSource.setMaxWait(maxWait); dataSource.setPoolPreparedStatements(preparedStatementCache); dataSource.setMaxOpenPreparedStatements(preparedStatementCacheSize); dataSource.setDriverClassName(driverClass); dataSource.setUrl(jdbcUrl); dataSource.setUsername(user); dataSource.setPassword(password); dataSource.setValidationQuery(validationQuery); dataSource.setTestOnBorrow(testOnBorrow); dataSource.setConnectionProperties(properties); // printAV_INFO(dataSource); for (int i = 0; i < loopCount; ++i) { p0(dataSource, "dbcp", threadCount); } System.out.println(); } private void printWP_ORDERS(DruidDataSource dataSource) throws SQLException { Connection conn = dataSource.getConnection(); Statement stmt = conn.createStatement(); ResultSet rs = stmt.executeQuery("SELECT * FROM WP_ORDERS"); JdbcUtils.printResultSet(rs); rs.close(); stmt.close(); conn.close(); } private void printAV_INFO(DataSource dataSource) throws SQLException { String sql = "SELECT DISTINCT ID FROM AV_INFO WHERE ROWNUM <= 10"; Connection conn = dataSource.getConnection(); Statement stmt = conn.createStatement(); ResultSet rs = stmt.executeQuery(sql); JdbcUtils.printResultSet(rs); rs.close(); stmt.close(); conn.close(); } protected void printTables(DruidDataSource dataSource) throws SQLException { Connection conn = dataSource.getConnection(); ResultSet rs = conn.getMetaData().getTables(null, "ALIBABA", null, new String[] { "TABLE" }); JdbcUtils.printResultSet(rs); rs.close(); conn.close(); } private void p0(final DataSource dataSource, String name, int threadCount) throws Exception { final CountDownLatch startLatch = new CountDownLatch(1); final CountDownLatch endLatch = new CountDownLatch(threadCount); for (int i = 0; i < threadCount; ++i) { Thread thread = new Thread() { public void run() { try { startLatch.await(); for (int i = 0; i < LOOP_COUNT; ++i) { Connection conn = dataSource.getConnection(); int mod = i % 500; String sql = SQL; // + " AND ROWNUM <= " + (mod + 1); PreparedStatement stmt = conn.prepareStatement(sql); stmt.setInt(1, 61); ResultSet rs = stmt.executeQuery(); int rowCount = 0; while (rs.next()) { rowCount++; } // Assert.isTrue(!rs.isClosed()); rs.close(); // Assert.isTrue(!stmt.isClosed()); stmt.close(); Assert.isTrue(stmt.isClosed()); conn.close(); Assert.isTrue(conn.isClosed()); } } catch (Exception ex) { ex.printStackTrace(); } endLatch.countDown(); } }; thread.start(); } long startMillis = System.currentTimeMillis(); long startYGC = TestUtil.getYoungGC(); long startFullGC = TestUtil.getFullGC(); startLatch.countDown(); endLatch.await(); long millis = System.currentTimeMillis() - startMillis; long ygc = TestUtil.getYoungGC() - startYGC; long fullGC = TestUtil.getFullGC() - startFullGC; System.out.println("thread " + threadCount + " " + name + " millis : " + NumberFormat.getInstance().format(millis) + ", YGC " + ygc + " FGC " + fullGC); } }