JDBC之C3P0连接池

<c3p0-config>
<default-config>
<property name="jdbcUrl">jdbc:mysql://localhost:3306/day20
</property>
<property name="driverClass">com.mysql.jdbc.Driver</property>
<property name="user">root</property>
<property name="password">root</property>
<property name="initialPoolSize">3</property>
<property name="maxPoolSize">6</property>
<property name="maxIdleTime">1000</property>
</default-config>
</c3p0-config>

		@Test//2. XML配置方式，使用C3P0连接池管理连接public void testXML() throws Exception {// 创建c3p0连接池核心工具类// 自动加载src下c3p0的配置文件【c3p0-config.xml】ComboPooledDataSource dataSource = new ComboPooledDataSource();// 使用默认的配置PreparedStatement pstmt = null;// 获取连接Connection con = dataSource.getConnection();for (int i=1; i<11;i++){String sql = "insert into employee(empName,dept_id) values(?,?)";// 执行更新pstmt = con.prepareStatement(sql);pstmt.setString(1, "Rose" + i);pstmt.setInt(2, 1);pstmt.executeUpdate();}pstmt.close();// 关闭con.close();}