package com.dao; import java.sql.ResultSet; import java.sql.SQLException; import com.form.AdminForm; import com.tools.JDBConnection; public class AdminDao { public JDBConnection connection = null; public AdminDao() { connection = new JDBConnection(); } // 根据用户名查看密码信息 public String getAdminPassword(String admin_user) { String admin_password = ""; String sql = "select * from tb_admin where admin_user='" + admin_user + "'"; ResultSet rs = connection.executeQuery(sql); try { while (rs.next()) { admin_password = rs.getString("admin_password"); } } catch (SQLException e) { e.printStackTrace(); } return admin_password; } // 修改管理员密码操作 public boolean operationAdmin(String sql) { return connection.executeUpdate(sql); } }