一个简单的一般处理程序

来源：互联网发布：vscode less自动编译编辑：程序博客网时间：2024/04/29 09:26

为了防止电话号码安全，用一般处理程序把电话号码写成了图片：

一般处理程序代码如下：

<%@ WebHandler Language="C#" Class="Handler" %>

using System;
using System.Web;
using System.Drawing;
using System.IO;
using System.Web.SessionState;

public class Handler : IHttpHandler, IRequiresSessionState
{


    public void ProcessRequest (HttpContext context) {
        //context.Response.ContentType = "text/plain";
        //context.Response.Write("Hello World");
        string method=context.Request.QueryString["method"];
        ConvertStringToImage(context, method, 13, 220, Color.FromArgb(0, 0, 0));

    }

    public bool IsReusable {
        get {
            return false;
        }
    }
    public void ConvertStringToImage(HttpContext context,string mystr,int height,int width,Color color) {
        Bitmap image = new Bitmap(width, height);
        Graphics g = Graphics.FromImage(image);
        Font font = new Font("SimHei", 11,FontStyle.Regular);
        SolidBrush brush = new SolidBrush(color);
        g.Clear(Color.White);
        StringFormat format = new StringFormat();
        g.DrawString(mystr, font, brush, 0, 0, format);
        MemoryStream ms = new MemoryStream();
        image.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
        context.Response.ClearContent();
        context.Response.ContentType = "image/pjpeg";
        context.Response.BinaryWrite(ms.ToArray());

    }

}

引用一般处理程序：

电话/手机：<img src=../Handler.ashx?method=<%=lb.Rows[0]["x_tel"] %> />