用java怎么连MYSQL数据库

//用户名

private String user = "";

//密码

private String password = "";

//主机

private String host = "";

//数据库名字

private String database = "";

/*

private String url="jdbc:mysql://"+host+"/"+"useUnicode=true&characterEncoding=GB2312";

*/

private String url ="";

private Connection con = null;

Statement stmt;

/**

* 根据主机、数据库名称、数据库用户名、数据库用户密码取得连接。

* @param host String

* @param database String

* @param user String

* @param password String

*/

public DBManager(String host, String database, String user, String password) {

this.host = host;

this.database = database;

this.user = user;

this.password = password;

//显示中文

this.url = &q