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PDF被加密无法打印的解决办法

ivy吖 9小时前 阅读 0

目录

一、测试要求

二、实现效果

三、实现代码


一、测试要求

二、实现效果

数据库中的内容:

使用数据库中的账号登录:

若不是数据库中的内容:

三、实现代码

login.aspx文件:
 

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="login.aspx.cs" Inherits="WebApplication2.login" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
    <link rel="stylesheet" href="StyleSheet1.css"/>

    <style type="text/css">
        .auto-style1 {
            width: 97%;
            height: 115px;
        }
        .auto-style2 {
            width: 137px;
        }
        .auto-style3 {
            height: 33px;
        }
    </style>

</head>
<body>
    <form id="form1" runat="server">
        <div>

            <br />
            <br />
            <div id="login">
                <h1>&nbsp;</h1>
                <h1 class="auto-style3">登录</h1>
                <p>&nbsp;</p>
                <table class="auto-style1">
                    <tr>
                        <td class="auto-style2">用户名</td>
                        <td>
                            <asp:TextBox ID="TextBox1" runat="server" CssClass="txt"></asp:TextBox>
                            <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox1" ErrorMessage="×" ForeColor="Red"></asp:RequiredFieldValidator>
                        </td>
                    </tr>
                    <tr>
                        <td class="auto-style2">密码</td>
                        <td>
                            <asp:TextBox ID="TextBox2" runat="server" CssClass="txt"></asp:TextBox>
                            <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="TextBox2" ErrorMessage="×" ForeColor="Red"></asp:RequiredFieldValidator>
                        </td>
                    </tr>
                </table>
                <br />
                <br />
                <br />
                <br />
                <asp:Button ID="Button3" runat="server" Height="38px" OnClick="Button3_Click" Text="登录" Width="110px" />
                <br />
                <br />
                <br />
                <asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click">没有账号?立即注册</asp:LinkButton>

            </div>
        </div>
    </form>
</body>
</html>

login.aspx.cs文件:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;

namespace WebApplication2
{
    public partial class login : System.Web.UI.Page
    {
        string sqlconn = ConfigurationManager.ConnectionStrings["userConnString"].ToString();
        //建立connection链接对象,这里最好设置成全局变量,否则后面每次都得新建
        SqlConnection myconnection = new SqlConnection();
        protected void Page_Load(object sender, EventArgs e)
        {
            UnobtrusiveValidationMode = UnobtrusiveValidationMode.None;
            myconnection.ConnectionString = sqlconn;
            //Label1.Text = myconnection.State.ToString();

            
        }

        //protected void Button1_Click(object sender, EventArgs e)
        //{
        //    myconnection.Open();
        //    Label1.Text = myconnection.State.ToString();
        //}

        //protected void Button2_Click(object sender, EventArgs e)
        //{
        //    myconnection.Close();
        //    Label1.Text = myconnection.State.ToString();
        //}

        protected void LinkButton1_Click(object sender, EventArgs e)
        {
            Response.Redirect("zhuce.aspx");
        }

        protected void Button3_Click(object sender, EventArgs e)
        {
            myconnection.Open();
            string name = TextBox1.Text;
            string pwd = TextBox2.Text;
            string sqlcmd = "select * from users where name='" + name + "'and pwd='" + pwd + "'";
            SqlCommand mycommand = new SqlCommand(sqlcmd, myconnection);
            SqlDataReader myreader = mycommand.ExecuteReader();
            myreader.Read();
            if (myreader.HasRows)
            {
                Response.Write("<script>alert('欢迎访问');</script>");
                
            }
            else
            {
                Response.Write("<script>alert('账号或密码错误');</script>");
            }
            myreader.Close();
            myconnection.Close();
        }
    }
}

stylesheet1.css文件

body {
    background-color:azure;
}
#login{
    width:600px;
    height:550px;
    border:1px solid black;
    background-color:white;
    margin:50px auto;
    text-align:center;
}
#login table{
    text-align:center;
}

.txt{
    height:30px;
    width:270px;
}

register.aspx文件(zhuce.aspx)

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="zhuce.aspx.cs" Inherits="WebApplication2.zhuce" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
    <link href="StyleSheet2.css" rel="stylesheet"/>
    <style type="text/css">
        .auto-style1 {
            width: 95%;
            height: 164px;
        }
        .auto-style2 {
            height: 54px;
        }
        .auto-style3 {
            height: 54px;
            width: 235px;
        }
        .auto-style4 {
            width: 235px;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
        <div id="zhuce">
            <h1>&nbsp;</h1>
            <h1>注册</h1>
            <table class="auto-style1">
                <tr>
                    <td class="auto-style3">用户名</td>
                    <td class="auto-style2">
                        <asp:TextBox ID="TextBox1" runat="server" CssClass="txt1"></asp:TextBox>
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox1" ErrorMessage="×" ForeColor="Red"></asp:RequiredFieldValidator>
                    </td>
                </tr>
                <tr>
                    <td class="auto-style4">密码</td>
                    <td>
                        <asp:TextBox ID="TextBox2" runat="server" CssClass="txt1"></asp:TextBox>
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="TextBox2" ErrorMessage="×" ForeColor="#FF3300"></asp:RequiredFieldValidator>
                    </td>
                </tr>
                <tr>
                    <td class="auto-style4">确认密码</td>
                    <td>
                        <asp:TextBox ID="TextBox3" runat="server" CssClass="txt1"></asp:TextBox>
                        <asp:CompareValidator ID="CompareValidator1" runat="server" ControlToCompare="TextBox2" ControlToValidate="TextBox3" ErrorMessage="×" ForeColor="Red"></asp:CompareValidator>
                    </td>
                </tr>
            </table>
            <br />
            <br />
            <asp:Button ID="Button1" runat="server" Height="46px" OnClick="Button1_Click" Text="注册" Width="133px" />
            <br />
            <br />
            <br />
            <asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click">已有帐号?立即登录</asp:LinkButton>
            <br />
            <br />
            <br />
            <br />
            <br />
            <br />

        </div>
    </form>
</body>
</html>

register.aspx.cs文件(zhuce.aspx.cs)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;

namespace WebApplication2
{
    public partial class zhuce : System.Web.UI.Page
    {
        string sqlconn = ConfigurationManager.ConnectionStrings["userConnString"].ToString();
        //建立connection链接对象,这里最好设置成全局变量,否则后面每次都得新建
        SqlConnection myconnection = new SqlConnection();
        protected void Page_Load(object sender, EventArgs e)
        {
            UnobtrusiveValidationMode = UnobtrusiveValidationMode.None;
            myconnection.ConnectionString = sqlconn;
            //Label1.Text = myconnection.State.ToString();
        }



        protected void LinkButton1_Click(object sender, EventArgs e)
        {
            Response.Redirect("login.aspx");
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            myconnection.ConnectionString = sqlconn;
            myconnection.Open();
            string name = TextBox1.Text;
            string pwd = TextBox3.Text;
            string sqlcmd = "insert into users(name,pwd) values ('" + name + "','" + pwd + "')";
            SqlCommand mycommand = new SqlCommand(sqlcmd, myconnection);
            mycommand.ExecuteNonQuery();
            Response.Write("<script>alert('添加成功');</script>");
    
            myconnection.Close();
        }

        //protected void Button2_Click(object sender, EventArgs e)
        //{
        //    myconnection.Open();
        //    Label1.Text = myconnection.State.ToString();
        //}

        //protected void Button3_Click(object sender, EventArgs e)
        //{
        //    myconnection.Close();
        //    Label1.Text = myconnection.State.ToString();
        //}
    }
}

stylesheet2.css文件

body {
    background-color:azure;
}
#zhuce {
    width: 600px;
    height: 550px;
    border: 1px solid black;
    background-color: white;
    margin: 30px auto;
    text-align: center;
}
.txt1 {
    height: 30px;
    width: 270px;
}

这次的测试我觉得我完成的也是可以的,首先通过配置参数将网页与数据库进行了相连,然后使用一个label和两个button(一个是打开数据库,一个是关闭数据库)来验证配置参数的正确性,验证完成之后,按照题目的要求,设置相应的格式。

后面有时间的话再完善一下。

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