C3P0Utils

package utils;

import com.mchange.v2.c3p0.ComboPooledDataSource;

import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class C3P0Utils {
    private static ComboPooledDataSource  dataSource= new ComboPooledDataSource();
    public static DataSource getDataSoure(){
        return  dataSource;
    }
    public  static Connection getConnection() throws SQLException {
        return dataSource.getConnection();
    }
    public static void close(ResultSet rs, Statement stat,Connection con){
        if (rs!=null){
            try {
                rs.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
        if (stat!=null){
            try {
                stat.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
        if (con!=null){
            try {
                con.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }

    }
}
需要配置xml文件 如下

<?xml version="1.0" encoding="UTF-8"?>
<c3p0-config>
    <default-config>
        <property name="driverClass">com.mysql.jdbc.Driver</property>
        <property name="jdbcUrl">jdbc:mysql://localhost:3306/web9502</property>
        <property name="user">root</property>
        <property name="password">root</property>
    </default-config>
</c3p0-config>