JDBC链接数据库-创新互联

package util;

import java.sql.Connection;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

import javax.sql.DataSource;

import com.mchange.v2.c3p0.ComboPooledDataSource;

public class JDBCUtils {

private static DataSource dataSource = null;

static{

dataSource = new ComboPooledDataSource("mvcApp");

}

public static Connection getConnection() throws Exception

{

return dataSource.getConnection();

}

public static void releaseDB(ResultSet resultSet,Statement statement,Connection connection)

{

if(resultSet != null)

{

try {

resultSet.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

if(statement != null)

{

try {

statement.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

if(connection != null)

{

try {

connection.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

}

}

c3p0文档

  com.mysql.jdbc.Driver

  jdbc:mysql://localhost:3306/test

root

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