C3P0数据库连接池连接Mysql8.0.11的配置问题

在src（类路径）目录下添加配置文件c3p0-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<c3p0-config>
//默认的配置
      <default-config>
         <property name="jdbcUrl">jdbc:mysql://localhost:3306/mydb_02?&amp;useSSL=false&amp;serverTimezone=UTC</property>
         <propertyname="driverClass">com.mysql.cj.jdbc.Driver</property>
         <property name="user">root</property>
         <property name="password">123456</property？
         <property name="acquireIncrement">3</property>
         <property name="initialPoolSize">10</property>
         <property name="minPoolSize">2</property>
         <property name="maxPoolSize">10</property>
         <named-config name="oracle"> 
     </default-config>
</c3p0-config>

package cn.lds.C3P0;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.sql.DataSource;
import com.mchange.v2.c3p0.ComboPooledDataSource;

        public class C3P0Utils { 
   
	private static ComboPooledDataSource dataSource = new ComboPooledDataSource();
              //获得数据源
	public static DataSource getDataSource() { 
   
		return dataSource;
	}
             //获得连接对象
	public static Connection getConnection() { 
   
		try { 
   
			return dataSource.getConnection();
		} catch (SQLException e) { 
   
			throw new RuntimeException(e);
		}
	}
	//释放资源
	public static void release(Connection con, PreparedStatement par, ResultSet re) { 
   
		if (re != null) { 
   
			try { 
   
				re.close();
			} catch (SQLException e) { 
   
				e.printStackTrace();
			}
		}
		if (par != null) { 
   
			try { 
   
				par.close();
			} catch (SQLException e) { 
   
				e.printStackTrace();
			}
		}
		if (con != null) { 
   
			try { 
   
				con.close();
			} catch (SQLException e) { 
   
				e.printStackTrace();
			}
		}

	}
}

package cn.lds.C3P0;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;


public class TestC3P0 { 
   public static void main(String[] args) { 
   
	TestAdd();
					}
	public static  void TestAdd() { 
   
		Connection con =null;
		PreparedStatement ps=null;
		try { 
   
			con=C3P0Utils.getConnection();
			String sql="insert into login_inf values(?,?)";
			ps=con.prepareStatement(sql);
			
			ps.setString(1, "张飞");
			ps.setString(2, "123456");
			int row = ps.executeUpdate();
			if(row>0) { 
   
				System.out.println("插入成功");
				
			}else { 
   
				System.out.println("插入失败");
			}
			
		} catch (SQLException e) { 
   
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{ 
   
			C3P0Utils.release(con, ps, null);
		}
		}