db.java

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package user;

import java.sql.*;
public class DB {
    private String driverName = "com.microsoft.jdbc.sqlserver.SQLServerDriver";//加载驱动程序
    private String url = "jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=xy";//设置数据库连接串
    private String user = "sa";//数据库登录用户名
    private String password = "a";//数据库登录密码
    
    
    public void setDriverName(String newDriverName) {
        driverName = newDriverName;
    }
    public String getDriverName() {
        return driverName;
    }
    
    public void setUrl(String newUrl) {
        url = newUrl;
    }
    public String getUrl() {
        return url;
    }
    public void setUser(String newUser) {
        user = newUser;
    }
    public String getUser() {
        return user;
    }
    public void setPassword(String newPassword) {
        password = newPassword;
    }
    public String getPassword() {
        return password;
    }
    
    public Connection getConnection() {
        try {
            Class.forName(driverName);
            return DriverManager.getConnection(url, user, password);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
    
    
    
    
    
}