usercreatetheme.aspx.cs

本程序基于 asp.net 2.0 +sql server 2

using System;
using System.Data;
using System.Configuration;
using System.Collections;
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 lalablog;
public partial class user_userCreateTheme : System.Web.UI.Page
{
    int userid;

    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["userid"] == null)
            Response.Redirect("userLogin.aspx");
        else
            this.userid = Convert.ToInt32(Session["userid"].ToString());

        bloguser user1 = new bloguser(this.userid);
        Session["user_level"] = user1.getLevel();

        //<2代表只有推荐用户以上级别才可以自定义主题
        if (Convert.ToInt32(Session["user_level"].ToString()) <2)
        {
            myfunc m1 = new myfunc("只有推荐用户才可以自定义主题，需要用到css+html知识!");
            Response.Write(m1.JavaMsg("user_manage_blog.aspx"));
        }

        if (!IsPostBack && Convert.ToInt32(Session["user_level"].ToString()) >=2)
            creatUserTheme();
    }


    //第二步，上传图片
    protected void Button2_Click(object sender, EventArgs e)
    {
        string path = Server.MapPath("~/app_themes/" + ViewState["newTheme"].ToString() + "/");
        Label2.Text = path;
        if (Directory.Exists(path) && FileUpload1.HasFile)
            upImage();
        // else
        //  Label2.Text = "未能上传文件";
    }

    private void upImage()
    {
        Boolean fileOK = false;

        string path = Server.MapPath("~/app_themes/" + ViewState["newTheme"].ToString() + "/");
        string filename;
        //检验是否指定后缀
        if (FileUpload1.HasFile)
        {
            string fileExtension = System.IO.Path.GetExtension(FileUpload1.FileName).ToLower();
            String[] allowedExtensions =  { ".gif", ".png", ".jpeg", ".jpg" };
            for (int i = 0; i < allowedExtensions.Length; i++)
            {
                if (fileExtension == allowedExtensions[i])
                    fileOK = true;
            }
            int fileSize = FileUpload1.PostedFile.ContentLength;
            //利用postedFile.ContentLength来判断文件长度,检查是否符合文件大小,250000就是250k字节
            if (fileOK && fileSize < 1000000)
                fileOK = true;
            else
                fileOK = false;
        }

        if (fileOK)
        {
            try
            {
                filename = path + FileUpload1.FileName;
                FileUpload1.PostedFile.SaveAs(filename);
                Label2.Text = "成功上传图片至" + filename;
            }
            catch (Exception ex)
            {
                myfunc m1 = new myfunc(ex.Message);
                Response.Write(m1.JavaMsg());
            }
        }
        else
        {
            myfunc m1 = new myfunc("无法上传的文件类型或文件大小超过允许值");
            Response.Write(m1.JavaMsg());
        }
    }

 
    private void loadcss()
    {
        string path = Server.MapPath("~/app_themes/" + ViewState["newTheme"].ToString() + "/");
        string blogcss = path + "\\blog.css";
        try
        {
            tbThemeCss.Text = File.ReadAllText(blogcss);
            Label4.Text = "成功读取css文件于" + blogcss;
        }
        catch (Exception ex)
        {
            Label4.Text = ex.Message;
        }
    }


    private  void creatUserTheme()
    {
        string newThemePath;
        newThemePath = Server.MapPath("~/app_themes/userTheme" + this.userid );
        if (Directory.Exists(newThemePath))
        {
            Label1.Text = "您的自定义主题已存在，将对已存在的主题进行编辑";
            ViewState["newTheme"] = "userTheme"+this.userid ;
            loadcss();
        }
        else
        {
            try
            {
                //新增主题并写入数据库
                Directory.CreateDirectory(newThemePath);
                ViewState["newTheme"] = "userTheme" + this.userid;
                writeToDb();
            }
            catch (Exception ex)
            {
                Label1.Text = ex.Message;
            }
        }
    }

    private void writeToDb()
    {
        string sql = "update users set themeid=0 where userid="+this.userid ;

        openDb o1 = new openDb(sql);
        o1.update();
    }

    //编辑css文件
    protected void Button3_Click(object sender, EventArgs e)
    {
        string path = Server.MapPath("~/app_themes/" + ViewState["newTheme"].ToString() + "/");
        string blogcss = path + "\\blog.css";
        try
        {
            File.WriteAllText(blogcss, Server.HtmlEncode(tbThemeCss.Text));
            Label4.Text = "成功写入css文件于" + blogcss;
        }
        catch (Exception ex)
        {
            Label4.Text = ex.Message;
        }
    }

    //上传skin文件

    protected void Button4_Click(object sender, EventArgs e)
    {
        Boolean fileOK = false;

        string path = Server.MapPath("~/app_themes/" + ViewState["newTheme"].ToString() + "/");
        string filename = path + "\\blog.skin"; ;
        //检验是否指定后缀
        if (FileUpload2.HasFile)
        {
            string fileExtension = System.IO.Path.GetExtension(FileUpload2.FileName).ToLower();
            if (fileExtension == ".skin")
                fileOK = true;
            int fileSize = FileUpload2.PostedFile.ContentLength;
            //利用postedFile.ContentLength来判断文件长度,检查是否符合文件大小,250000就是250k字节
            if (fileOK && fileSize < 10000)
                fileOK = true;
            else
                fileOK = false;
        }

        if (fileOK)
        {
            try
            {
                FileUpload2.PostedFile.SaveAs(filename);
                Label3.Text = "成功上传skin文件至" + filename;
            }
            catch (Exception ex)
            {
                myfunc m1 = new myfunc(ex.Message);
                Response.Write(m1.JavaMsg());
            }
        }
        else
        {
            myfunc m1 = new myfunc("无法上传的文件类型或文件大小超过允许值");
            Response.Write(m1.JavaMsg());
        }

    }

}