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@@ -0,0 +1,21 @@
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+package name;
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+import java.sql.*;
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+
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+public class DBConn {
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+ static Connection conn=null;
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+ //连接数据库,返回 connection conn；
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+ public static Connection getConn(){
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+ String driverClassName="com.mysql.jdbc.Driver";//数据库驱动
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+ String url="jdbc:mysql://localhost:3306/management";//数据库名称 management
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+ String username="root";
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+ String password="001011";
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+ try{
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+ Class.forName("com.mysql.jdbc.Driver");
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+ conn= DriverManager.getConnection(url, username, password);
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+ }catch (Exception e){
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+ e.printStackTrace();
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+ }
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+ return conn;
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+ }
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+
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+}
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