使用wkhtmltopdf第三方包将HTML转为PDF的程序

微笑小生

1、这里使用的wkhtmltopdf.exe第三方包辅助（下载方式贴到最下方）


2、废话不多少直接上代码（直接运行，帖主亲自试过）

[C#] 纯文本查看 复制代码

public static bool HtmlConvertToPdf(string htmlPath, string savePath)
        {
            bool flag = false;
            CheckFilePath(savePath);

            ///这个路径为程序集的目录，因为我把应用程序 wkhtmltopdf.exe 放在了程序集同一个目录下
string exePath = AppDomain.CurrentDomain.BaseDirectory.ToString() + "wkhtmltopdf.exe";
            if (!File.Exists(exePath))
            {
                throw new Exception("No application wkhtmltopdf.exe was found.");
            }

            try
            {
                ProcessStartInfo processStartInfo = new ProcessStartInfo();
                processStartInfo.FileName = exePath;
                processStartInfo.WorkingDirectory = Path.GetDirectoryName(exePath);
                processStartInfo.UseShellExecute = false;
                processStartInfo.CreateNoWindow = true;
                processStartInfo.RedirectStandardInput = true;
                processStartInfo.RedirectStandardOutput = true;
                processStartInfo.RedirectStandardError = true;
                processStartInfo.Arguments = GetArguments(htmlPath, savePath);
                


                Process process = new Process();
                process.StartInfo = processStartInfo;
                process.Start();
                process.WaitForExit(60000);

                ///用于查看是否返回错误信息
                StreamReader srone = process.StandardError;
                StreamReader srtwo = process.StandardOutput;
                string ss1 = srone.ReadToEnd();
                string ss2 = srtwo.ReadToEnd();
                srone.Close();
                srone.Dispose();
                srtwo.Close();
                srtwo.Dispose();

                process.Close();
                process.Dispose();

                flag = true;
            }
            catch
            {
                flag = false;
            }
            return flag;
        }


private static void CheckFilePath(string savePath)
        {
            string ext = string.Empty;
            string path = string.Empty;
            string fileName = string.Empty;

            ext = Path.GetExtension(savePath);
            if (string.IsNullOrEmpty(ext) || ext.ToLower() != ".pdf")
            {
                throw new Exception("Extension error:This method is used to generate PDF files.");
            }

            fileName = Path.GetFileName(savePath);
            if (string.IsNullOrEmpty(fileName))
            {
                throw new Exception("File name is empty.");
            }

            try
            {
                path = savePath.Substring(0, savePath.IndexOf(fileName));
                if (!Directory.Exists(path))
                {
                    Directory.CreateDirectory(path);
                }
            }
            catch
            {
                throw new Exception("The file path does not exist.");
            }
        }

private static void CheckFilePath(string savePath)
        {
            string ext = string.Empty;
            string path = string.Empty;
            string fileName = string.Empty;

            ext = Path.GetExtension(savePath);
            if (string.IsNullOrEmpty(ext) || ext.ToLower() != ".pdf")
            {
                throw new Exception("Extension error:This method is used to generate PDF files.");
            }

            fileName = Path.GetFileName(savePath);
            if (string.IsNullOrEmpty(fileName))
            {
                throw new Exception("File name is empty.");
            }

            try
            {
                path = savePath.Substring(0, savePath.IndexOf(fileName));
                if (!Directory.Exists(path))
                {
                    Directory.CreateDirectory(path);
                }
            }
            catch
            {
                throw new Exception("The file path does not exist.");
            }
        }
// 在main函数直接调用HtmlConvertToPdf(htmlPath, savePath);

wkhtmltopdf.exe下载方式：
https://wkhtmltopdf.org/downloads.html   点击选择自己的版本，这里帖主选择的是win64的

微笑小生

SoDump 发表于 2021-12-22 19:02
两个 CheckFilePath 函数？

复制多了一个，替换成我下方的

[C#] 纯文本查看 复制代码

  private static string GetArguments(string htmlPath, string savePath)
        {
            if (string.IsNullOrEmpty(htmlPath))
            {
                throw new Exception("HTML local path or network address can not be empty.");
            }

            if (string.IsNullOrEmpty(savePath))
            {
                throw new Exception("The path saved by the PDF document can not be empty.");
            }

            StringBuilder stringBuilder = new StringBuilder();
            stringBuilder.Append(" --page-height 100 ");        //页面高度100mm
            stringBuilder.Append(" --page-width 100 ");         //页面宽度100mm
            stringBuilder.Append(" --header-center 我是页眉 ");  //设置居中显示页眉
            stringBuilder.Append(" --header-line ");         //页眉和内容之间显示一条直线
            stringBuilder.Append(" --footer-center \"Page [page] of [topage]\" ");    //设置居中显示页脚
            stringBuilder.Append(" --footer-line ");       //页脚和内容之间显示一条直线
            stringBuilder.Append(" " + htmlPath + " ");       //本地 HTML 的文件路径或网页 HTML 的URL地址
            stringBuilder.Append(" " + savePath + " ");       //生成的 PDF 文档的保存路径
            return stringBuilder.ToString();
        }

SoDump

微笑小生 发表于 2021-12-23 10:44
复制多了一个，替换成我下方的
[mw_shl_code=csharp,true]  private static string GetArguments(string ...

Good!

yunruifuzhu

支不支持Ajax的网页

微笑小生

yunruifuzhu 发表于 2021-12-22 17:35
支不支持Ajax的网页

应该可以的

SoDump

两个 CheckFilePath 函数？

迷恋自留地

不错哦，很棒

微笑小生

迷恋自留地 发表于 2021-12-23 10:53
不错哦，很棒

谢谢支持

ygx0769

效果图呢，能保存连续不分页的吗

微笑小生

ygx0769 发表于 2021-12-24 22:41
效果图呢，能保存连续不分页的吗

可以自定义的文本的大小，来设置分页