展开全部
importjava.sql.*;
publicclassBaseDao{
publicResultSetrs=null;
publicStatementpstmt=null;
publicConnectionconn=null;
publicstaticfinalStringDRIVER="com.mysql.jdbc.Driver";
publicstaticfinalStringURL="jdbc:mysql://localhost:3306/数据库32313133353236313431303231363533e58685e5aeb931333363353834";
publicstaticfinalStringDBNAME="root";
publicstaticfinalStringDBPASS="密码";
//得到数据库连接
publicstaticConnectiongetCon(){
Connectionconn=null;
try{
Class.forName(DRIVER);
conn=DriverManager.getConnection(URL,DBNAME,DBPASS);
}catch(Exceptione){
e.printStackTrace();
}
if(conn==null)
{
System.err.println("警告：数据库连接失败！");
}
returnconn;
}
//释放资源
publicstaticvoidclose(Connectionconn){
if(conn!=null){
try{
conn.close();
}catch(SQLExceptione){
e.printStackTrace();
}
}
}
publicstaticvoidmain(String[]args)
{
System.out.println(BaseDao.getCon());
}
}
新建一个class类，上面是内容，导入jdbc包，运行打印一串就代表链接成功了
