c3p0 get data source

getDataSourcec3p0Resource

    private static void f3Resource() throws Exception {
        Connection conn = getDataSourcec3p0Resource().getConnection();
        int res = executeUpdate(conn);
        System.out.println(res);
    }

    private static DataSource getDataSourcec3p0Resource() throws Exception {
        ComboPooledDataSource c3p0 = new ComboPooledDataSource("test");
        return  c3p0;
    }

    private static void f3() throws Exception {
        Connection conn = getDataSourceC3p0().getConnection();
        int res = executeUpdate(conn);
        System.out.println(res);
    }

    public static DataSource getDataSourceC3p0() throws Exception {
        ComboPooledDataSource c3p0 = new ComboPooledDataSource();
        c3p0.setDriverClass("com.mysql.jdbc.Driver");
        c3p0.setJdbcUrl("jdbc:mysql://localhost:3306/jdbc");
        c3p0.setUser("root");
        c3p0.setPassword("root1010");
        return c3p0;
    }
    
    private static int executeUpdate(Connection conn) {
        String sql = "UPDATE `user` set money=666 where id=?";
        Object[] objs = new Object[]{"1"};
        return JdbcUtils.executeUpdate(conn, sql, objs);
    }

11

<? Xml Version = "1.0" encoding = "UTF-8" ?> 
< C3p0-config > 
    <-! Default configuration, if not specified using this configuration -> 
    < default-config > 
        < Property name = "the User " > the root </ Property > 
        < Property name =" password " > XXX </ Property > 
        < Property name =" the jdbcUrl " > JDBC: MySQL: // localhost: 3306 / JDBC </ Property > 
        <property name="driverClass">com.mysql.jdbc.Driver</property>
        <property name="checkoutTimeout">30000</property>
        <property name="idleConnectionTestPeriod">30</property>
        <property name="initialPoolSize">3</property>
        <property name="maxIdleTime">30</property>
        <property name="maxPoolSize">100</ Property > 
        < Property name = "minPoolSize" > 2 </ Property > 
        < Property name = "maxStatements" > 200 is </ Property > 
    </ default-config > 
    <-! Named configuration can be achieved by a method call - -> 
    < the named config- name = "Test" > 
        < Property name = "User" > the root </ Property > 
        < Property name = "password">xxx</Property > 
        < Property name = "jdbcUrl" > jdbc: MySQL: // localhost: 3306 / jdbc </ Property > 
        < Property name = "driverClass" > com.mysql.jdbc.Driver </ Property > 
        ! <- if the pool once the data is not enough growth in the number of connection -> 
        < Property name = "acquireIncrement" > 5 </ Property > 
        <-! the number of connections when you initialize the database connection pool -> 
        < Property name = "initialPoolSize" >20</property>
        <! - a database connection pool maximum number of database connections -> 
        < Property name = "the maxPoolSize" > 25 </ Property > 
        <! - a database connection pool minimum number of database connections -> 
        < Property name = "minPoolSize" > . 5 </ Property > 
    </ the named-config > 
</ the c3p0-config >