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.net中常用的几种页面间传递参数的方法

2024-07-30 05:50:49   213人阅读

1.session方便，但容易丢失；

2.application全局；

3.cookie简单，但是可能不支持，容易被伪造；

4.input type="hide"隐藏域，简单，但容易被伪造

5.url参数简单，显示与地址栏，但是长度有限；

6.数据库稳定，安全，但性能较弱；

 

 

 

表单提交

 

传递页面代码<html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server">    <title>表单提交</title>     <script type="text/javascript" language="javascript">            function post()            {                      forPost.action="DestinationPage.aspx";                        forPost.submit();            }     </script></head><body>        <form id="forPost"  method="post">         方式一：表单提交<br />         <input type="text" id="SourceData2" runat="server"/>         <input type="button" id="btnTransfer1" value="http://www.mamicode.com/提交" onclick="post();" />                     </form>   </body></html>

 

接收页面代码protected void Page_Load(object sender, EventArgs e){    string a = Request.Form["SourceData2"].ToString();    txt1.Value = http://www.mamicode.com/a;              >

 QueryString传值

传入页面代码<html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server">    <title>QueryString</title></head><body>    <form id="form1" runat="server">    <div>        <input type="text" id="txt1" runat="server" />        <input type="text" id="txt2" runat="server" />        <input type="button" id="btn1" value="http://www.mamicode.com/提交" runat="server" onserverclick="btn1_ServerClick" />    </div>    </form></body></html>


protected void btn1_ServerClick(object sender, EventArgs e)    {        string aa = txt1.Value;        string bb = txt2.Value;        string url = "DestinationPage5.aspx?parameter1=" + aa + "&parameter2=" + bb;        Response.Redirect(url, false);          }

 

接收页面代码protected void Page_Load(object sender, EventArgs e)

    {

        txt1.Value = http://www.mamicode.com/Request.QueryString["parameter1"].ToString();

        txt2.Value = http://www.mamicode.com/Request.QueryString["parameter2"].ToString();

    }

 链接地址传值

<a href="http://www.mamicode.com/DestinationPage6.aspx?param1=1111¶m2=2222">跳转</a>

 

接收页面代码protected void Page_Load(object sender, EventArgs e)    {               txt1.Value = http://www.mamicode.com/Request["param1"];        txt2.Value = http://www.mamicode.com/Request["param2"];}

 Context传值

页面代码<html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server">    <title>Context</title></head><body>    <form id="form1" runat="server">    <div>        <input type="text" id="txt1" runat="server" />        <input type="button" id="btn1" value="http://www.mamicode.com/提交" runat="server" onserverclick="btn1_ServerClick" />    </div>    </form></body></html>

protected void btn1_ServerClick(object sender, EventArgs e)

    {

        Context.Items["value"] = txt1.Value;

        Server.Transfer("DestinationPage3.aspx");      

    }

 

接收代码protected void Page_Load(object sender, EventArgs e)    {        string a = Context.Items["value"].ToString();        txt1.Value = http://www.mamicode.com/a;>

 Cookie传值

页面代码<html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server">    <title>Cookie</title></head><body>    <form id="form1" runat="server">    <div>              <input type="text" id="txt1" runat="server" />        <input type="button" id="btn1" value="http://www.mamicode.com/提交" runat="server" onserverclick="btn1_ServerClick" />    </div>    </form></body></html> protected void btn1_ServerClick(object sender, EventArgs e)    {        string aa = txt1.Value;        HttpCookie cookie = new HttpCookie("MyCookie", aa);        Response.Cookies.Add(cookie);        string url = "DestinationPage8.aspx";        Response.Redirect(url, false);    }

 

接收代码protected void Page_Load(object sender, EventArgs e)    {        HttpCookie myCookie = Request.Cookies["MyCookie"];        txt1.Value = http://www.mamicode.com/myCookie.Value;>

 Session传值

通过Session取值，在一个页面中赋值，在其他页面中共享。为避免造成Session值的混乱无序，应尽量少用Session传非公共的变量。Session比较适合用来保存一些公共变量。

页面<html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server">    <title>Session传值</title></head><body>    <form runat="server">        <input type="text" id="txt1" runat="server" />        <input type="button" id="btn1" value="http://www.mamicode.com/提交" runat="server" onserverclick="btn1_ServerClick" />    </form></body></html> protected void btn1_ServerClick(object sender, EventArgs e){          Session["value"] = txt1.Value;    Response.Redirect("DestinationPage2.aspx");}

 

接收值protected void Page_Load(object sender, EventArgs e){   txt1.Value = http://www.mamicode.com/Session["value"].ToString();}

Application传值

此种方法不常使用，因为Application在一个应用程序域范围共享，所有用户可以改变及设置其值，故只应用于计数器等需要全局变量的地方。

页面<html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server">    <title>Application</title></head><body>    <form id="form1" runat="server">    <div>        <input type="text" id="txt1" runat="server" />                <input type="button" id="btn1" value="http://www.mamicode.com/提交" runat="server" onserverclick="btn1_ServerClick" />    </div>    </form></body></html>protected void btn1_ServerClick(object sender, EventArgs e)    {        string aa = txt1.Value;        Application["param1"] = aa;        string url = "DestinationPage7.aspx";        Response.Redirect(url, false);    }

 

接收protected void Page_Load(object sender, EventArgs e)    {        txt1.Value = http://www.mamicode.com/Application["param1"].ToString();    }

 

.net中常用的几种页面间传递参数的方法


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