CheckLogin.cs

最新推荐文章于 2022-09-28 20:53:01 发布

原创最新推荐文章于 2022-09-28 20:53:01 发布 · 397 阅读

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CC 4.0 BY-SA版权

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#string #thread #system #class #产品

本文介绍了一个用户登录验证及管理员权限检查的实现方法，通过SQL查询来确认用户名和密码的有效性，并进一步判断用户是否为管理员身份。此外，还提供了获取特定用户类型的功能。

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using System;
2using System.Data;
3using System.Data.SqlClient;
4using System.Configuration;
5using System.Web;
6using System.Web.Security;
7using System.Web.UI;
8using System.Web.UI.WebControls;
9using System.Web.UI.WebControls.WebParts;
10using System.Web.UI.HtmlControls;
11
12/**//// <summary>
13/// CheckLogin 的摘要说明
14/// </summary>
15public class CheckLogin
16...{
17    public CheckLogin()
18    ...{
19        //
20        // TODO: 在此处添加构造函数逻辑
21        //
22    }
23    public int GiveID(string UserName, string PassWord)
24    ...{
25        SqlDataBase ThisB = new SqlDataBase();
26        string CheckSql = "select count(*) from UserList where UserName = '" + UserName + "' and PassWord = '" + PassWord + "'";
27        int ThisNum = Convert.ToInt32(ThisB.ReturnSQL(CheckSql));
28        if (ThisNum > 0)
29        ...{
30            string SqlType = "select * from UserList where UserName = '" + UserName + "' and PassWord = '" + PassWord + "'";
31            SqlDataReader ThRead = ThisB.GRead(SqlType);
32            while (ThRead.Read())
33            ...{
34                return Convert.ToInt32(ThRead["ID"]);
35            }
36        }
37        return 0;
38    }
39    public static bool CheckAdmin(int UserID)
40    ...{
41        SqlDataBase MyDb = new SqlDataBase();
42        string Log = Convert.ToString(MyDb.ReturnSQL("select UserType from UserList Where ID = '" + UserID + "'"));
43        if (Log == "1")
44        ...{
45            return true;
46        }
47        else
48        ...{
49            return false;
50        }
51    }
52    public static int GiveCheckAd(int UserID)
53    ...{
54        SqlDataBase MyDb = new SqlDataBase();
55        int Log = Convert.ToInt32(MyDb.ReturnSQL("select GoodsType from UserList Where ID = '" + UserID + "'"));
56        return Log;
57    }
58    public static DataTable GiveMsgGod(int UserID) //返回对应仓库的数量超限产品
59    ...{
60        SqlDataBase MyDb = new SqlDataBase();
61        int Log = Convert.ToInt32(MyDb.ReturnSQL("select Controls from UserList Where ID = '" + UserID + "'"));
62        string SqlString = "";
63        if (Log == 0)
64        ...{
65            SqlString = "select * from View_GoodMsg";
66        }
67        else
68        ...{
69            SqlString = "select * from View_GoodMsg where ID = '"+Log+"'";
70        }
71        return MyDb.DT(SqlString);
72    }
73    public static bool CheckKeepAdmin(int UserID)
74    ...{
75        SqlDataBase MyDb = new SqlDataBase();
76        string Log = Convert.ToString(MyDb.ReturnSQL("select GoodsType from UserList Where ID = '" + UserID + "'"));
77        if (Log == "0")
78        ...{
79            return true;
80        }
81        else
82        ...{
83            return false;
84        }
85    }
86}