Java 连接数据库需要与数据库对应的驱动包，MY SQL 的话可以通过http://dev.mysql.com/downloads/connector/j/ 来下载对应版本的jar包。下载完成之后拷贝mysql-connector-java-*-bin.jar 到项目lib目录,如果是Maven项目则在pom 里面添加对应的依赖关系就可以了。如下：

[code language=”xml”]

mysql mysql-connector-java 5.1.28 
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JDBC 连接 MySQL 数据库：

[code language="java"]

package com.devnp.util;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class DBConnection {
 private static String driver = "com.mysql.jdbc.Driver";
 private static String url = "jdbc:mysql://127.0.0.1:3306/test?characterEncoding=utf8";
 private static String userName = "root"; // base on your login user name
 private static String password = "!qaz2wsx"; // base on your login user

public static Connection getConnection() {
 Connection connection = null;
 try {
  Class.forName(driver);
  connection = DriverManager.getConnection(url, userName, password);
 } catch (ClassNotFoundException e) {
  e.printStackTrace();
 } catch (SQLException e) {
  e.printStackTrace();
}
  return connection;
}

public static void connectionClose(Connection connection) {
 if (connection != null) {
 try {
   connection.close();
 } catch (SQLException e) {
  e.printStackTrace();
 }
 }
}

}