RolePermission.Bll/SMUSERTBService.cs

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using RolePermission.Common;
using RolePermission.Common.HtmlHelpers;
using RolePermission.IBLL;
using RolePermission.Model;
using RolePermission.Model.SearchParam;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
using System.Transactions;
using RolePermission.IDAL;

namespace RolePermission.BLL
{
    public partial class SMUSERTBService : BaseService<SMUSERTB>, ISMUSERTBService
    {
        /// <summary>
        /// 验证用户名和密码是否正确
        /// </summary>
        /// <param name="userName">用户名</param>
        /// <param name="password">密码</param>
        /// <returns>登录成功后的用户信息</returns>
        public SMUSERTB ValidateUser(string userName, string password)
        {
            if (String.IsNullOrWhiteSpace(userName) || String.IsNullOrWhiteSpace(password))
                return null;

            //获取用户信息,请确定web.config中的连接字符串正确
            return LoadEntities(x => x.U_ID == userName &&x.U_PASSWORD == password && x.STATUS == "Y").FirstOrDefault();
        }
        /// <summary>
        /// 修改密码
        /// </summary>
        /// <param name="personName">用户名</param>
        /// <param name="oldPassword">旧密码</param>
        /// <param name="newPassword">新密码</param>
        /// <returns>修改密码是否成功</returns>
        public bool ChangePassword(string personName, string oldPassword, string newPassword)
        {
            if (!string.IsNullOrWhiteSpace(personName) && !string.IsNullOrWhiteSpace(oldPassword) && !string.IsNullOrWhiteSpace(newPassword))
            {
                try
                {
                    var person = LoadEntities(p => p.U_ID ==personName && p.U_PASSWORD == oldPassword).FirstOrDefault();
                    person.U_PASSWORD = newPassword;
                    this.GetCurrentDbSession.SaveChanges();
                    return true;
                }
                catch (Exception ex)
                {
                    throw new Exception(ex.ToString());
                }
            }
            return false;
        }
        /// <summary>
        /// 多条件搜索用户信息
        /// </summary>