首先添加 using System.IO 命名空间。
代码部分：
| 代码如下 |
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public string readfile(string paths)
{
StreamReader sr=new StreamReader(Server.MapPath(paths),System.Text.Encoding.Default);
string input =sr.ReadToEnd();
return input;
}
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上面为核心代码，完整读取文件文件代码
| 代码如下 |
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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.IO;
namespace test
{
public partial class Text : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Response.Write(GetInterIDList("asp.txt"));
}
//读取txt文件的内容
public string GetInterIDList(string strfile)
{
string strout;
strout = "";
if (!File.Exists(System.Web.HttpContext.Current.Server.MapPath(strfile)))
{
}
else
{
StreamReader sr = new StreamReader(System.Web.HttpContext.Current.Server.MapPath(strfile), System.Text.Encoding.Default);
String input = sr.ReadToEnd();
sr.Close();
strout = input;
}
return strout;
}
}
}
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一行一行读取文件本文件
例
| 代码如下 |
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using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Text;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
string Path = Server.MapPath("4.txt");
insertStr(Path);
}
}
public void insertStr(string Path)
{
string strLine = "";
int i = 0;
try
{
StreamReader sr = new StreamReader(Path, Encoding.GetEncoding("GB2312"));
strLine = sr.ReadLine();
while (strLine != null)
{
Response.Write(strLine + "
");
strLine = sr.ReadLine();
i++;
}
Response.Write(i);
sr.Dispose();
sr.Close();
}
catch
{
}
}
}
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