/*
* 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.Statement;
import org.junit.Assert;
import junit.framework.TestCase;
import com.alibaba.druid.util.JdbcUtils;
public class TestRollBack extends TestCase {
private DruidDataSource dataSource;
protected void setUp() throws Exception {
dataSource = new DruidDataSource();
dataSource.setUrl("jdbc:mysql://a.b.c.d/druid?useUnicode=true&characterEncoding=UTF-8");
dataSource.setUsername("dragoon_test");
dataSource.setPassword("dragoon_test");
dataSource.setFilters("stat,trace,encoding");
dataSource.setDefaultAutoCommit(false);
createTable();
}
protected void tearDown() throws Exception {
dropTable();
dataSource.close();
}
public void test_druid() throws Exception {
Connection conn = null;
try {
conn = dataSource.getConnection();
insert(conn, 1, "abc");
insert(conn, 2, "1234567");
} catch (Exception e) {
conn.rollback();
} finally {
JdbcUtils.close(conn);
}
Assert.assertEquals(0, count());
}
public int count() throws Exception {
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try {
conn = dataSource.getConnection();
stmt = conn.createStatement();
rs = stmt.executeQuery("SELECT COUNT(*) FROM T_0");
rs.next();
return rs.getInt(1);
} finally {
JdbcUtils.close(rs);
JdbcUtils.close(stmt);
JdbcUtils.close(conn);
}
}
private void insert(Connection conn, int id, String value) throws Exception {
String sql = "insert into T_0 (ID, NAME) VALUES (?, ?)";
PreparedStatement stmt = null;
try {
stmt = conn.prepareStatement(sql);
stmt.setInt(1, id);
stmt.setString(2, value);
stmt.execute();
} finally {
JdbcUtils.close(stmt);
}
}
private void dropTable() throws Exception {
String ddl = "DROP TABLE T_0";
Connection conn = dataSource.getConnection();
Statement stmt = conn.createStatement();
stmt.execute(ddl);
stmt.close();
conn.close();
}
private void createTable() throws Exception {
String ddl = "CREATE TABLE T_0 (ID INT PRIMARY KEY, NAME VARCHAR(5))";
Connection conn = dataSource.getConnection();
Statement stmt = conn.createStatement();
stmt.execute(ddl);
stmt.close();
conn.close();
}
}