詳解如何使用Net將HTML簡歷匯出為PDF格式

2023-03-31 06:01:51

正文

現在有許多將HTML匯出PDF的第三方包，這裡介紹使用的是Select.HtmlToPdf.NetCore

使用Select.HtmlToPdf.NetCore

整體思路是將cshtml內容讀出來，然後再轉為Pdf檔案
讀取cshtml內容有兩種方法，第一種使用第三方包 RazorEngine.NetCore，第二種使用官方方法進行讀取。（注意兩種方法的cshtml內容略有不同）

效果圖展示

線上演示地址

我把所有的原始碼都上傳到了我的個人Github，有需要的請自取：github.com/WeiMing0803…

首先使用ChatGPT生成個人簡歷資訊

程式碼部分

HomeController.cs :

public async Task<IActionResult> ToPdf()
{
    PdfDocument pdfDocument = new PdfDocument();
    HtmlToPdf converter = new HtmlToPdf();//範例化一個html到pdf轉換器物件
    converter.Options.PdfPageOrientation = PdfPageOrientation.Portrait;//設定頁面方向
    converter.Options.PdfPageSize = PdfPageSize.A4;//設定頁面大小
    converter.Options.MarginTop = 10;//設定頁邊距
    converter.Options.MarginBottom = 10;
    converter.Options.MarginLeft = 10;
    converter.Options.MarginRight = 10;
    PdfReportModel model = new PdfReportModel { Name = "彭于晏", Email = "pengyuyan@outlook.com" };
    //string htmlResult = readByEngineRazor(model);//第一種方法，使用RazorEngine.NetCore讀取Cshtml檔案
    string htmlResult = await readCshtml(model);//第二種方法
    if (!string.IsNullOrEmpty(htmlResult))
    {
        pdfDocument = converter.ConvertHtmlString(htmlResult);
    }
    string savePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), $@"ExportPDF{DateTime.Now.ToString("yyyyMMdd")}");
    Directory.CreateDirectory(savePath);
    string filename = Path.Combine(savePath, $"{DateTime.Now.ToString("yyyyMMddHHmmssffff")}.pdf");
    pdfDocument.Save(filename);
    byte[] bytes = System.IO.File.ReadAllBytes(filename);
    return File(bytes, "application/pdf", Path.GetFileName(filename));
}
 private string readByEngineRazor(PdfReportModel model)
{
    string template = System.IO.File.ReadAllText("Views/Report/PdfReport.cshtml");
    string htmlResult = Engine.Razor.RunCompile(template, "PdfReport", typeof(PdfReportModel), model);
    return htmlResult;
}
private async Task<string> readCshtml(PdfReportModel model)
{
    string htmlResult = await _viewRenderService.RenderToStringAsync("Report/PdfReport", model);
    return htmlResult;
}

TemplateGadgetProvider.cs :

public class TemplateGadgetProvider
{
    public static TemplateGadgetProvider _instance;
    public static TemplateGadgetProvider Instance
    {
        get
        {
            if (_instance == null)
                _instance = new TemplateGadgetProvider();
            return _instance;
        }
    }
    public string Load(string virtualPath)
    {
        return File.ReadAllText(virtualPath);
    }
}

pdfReport.css :

Css樣式檔案：

html {
    font-family: 'Open Sans', sans-serif;
    background: whitesmoke;
}
a {
    text-decoration: none;
    color: black;
}
hr {
    background: grey;
}
#container {
    position: relative;
    display: flex;
}
#profile {
    flex: 15%;
    display: block;
    position: relative;
    margin: 5% 2% 0 10%;
    width: 100%;
    height: 100%;
}
#info-cards {
    flex: 55%;
    display: block;
    margin-top: 5%;
    margin-right: 10%;
    width: 100%;
    height: 100%;
}
#image {
    position: relative;
    overflow: hidden;
}
#image,
#profile-photo {
    position: relative;
    width: 80px;
    height: 80px;
    border-radius: 10px;
}
    #image > a {
        position: absolute;
        top: 0;
        left: 0;
        background: rgba(0, 0, 0, 0.5) !important;
        height: 100%;
        width: 100%;
        display: none;
    }
        #image > a > i {
            -webkit-text-stroke: 1px #ffffffdd;
            padding: 40%;
        }
    #image:hover a {
        display: block;
    }
#name {
    font-size: 23px !important;
    line-height: 20px !important;
}
#about,
.card > ul > li {
    padding: 0 0 0 15px;
    position: relative;
    display: inline-block;
    width: 100%;
}
#about {
    font-size: 20px !important;
    padding: 0 !important;
}
    #name,
    #about > p {
        font-weight: bolder;
        font-family: 'Open Sans', sans-serif;
    }
#email {
    font-size: 15px !important;
    font-weight: bold !important;
    font-family: 'Cutive Mono', monospace;
}
#college,
#email,
#year-graduation,
#education,
#more-about,
#telephone,
#fax {
    color: #555;
    font-size: 13.5px;
}
strong,
span {
    color: black;
    font-size: 16px;
}
#social-links,
#about {
    display: inline-block;
}
#social-links {
    margin-bottom: 12px;
}
    #social-links a {
        margin: 0 10px;
    }
#edit-intro {
    display: block;
    color: #097bbf;
    font-family: 'Nunito', sans-serif;
}
.fab {
    font-size: 1.1em;
}
.fab,
.fas {
    color: whitesmoke;
}
#about > a {
    top: 4px;
    right: 8px;
}
.edit {
    top: 19px;
    right: 10px;
}
#about > a,
.edit {
    position: absolute;
    font-size: 15px !important;
}
.stroke-transparent {
    -webkit-text-stroke: 1px #000;
    -webkit-text-fill-color: transparent;
}
.blue {
    color: #097bbf !important;
    font-size: 13px;
}
.stroke-transparent-blue {
    -webkit-text-stroke: 1px #097bbf;
    -webkit-text-fill-color: transparent;
}
.card {
    box-shadow: 0 3px 10px 0 rgba(0, 0, 0, .1);
    overflow-x: hidden;
    margin-bottom: 30px;
    padding: 15px 30px 30px 30px;
    background-color: #fff;
}
    .card > p {
        color: #0e141e;
        font-weight: bolder;
        font-size: 18px;
        line-height: 2;
    }
        .card > p > i {
            font-size: 18px;
        }
    .card > a {
        font-weight: 400;
        font-size: 15px;
        margin: 0;
        margin-left: 25px;
        padding: 0;
        border: 0;
        height: auto;
        background: transparent;
        color: #097bbf;
        outline: none;
        cursor: pointer;
    }
    .card > ul {
        list-style-type: none;
    }
.tags {
    font-size: 17px;
    font-weight: bolder;
}
    .tags ~ a {
        display: none !important;
    }
    .tags span {
        font-size: 14px;
        font-weight: normal;
        color: #0e141e;
    }
        .tags span span {
            color: #738f93;
        }
@media screen and (max-width:1090px) {
    #profile {
        margin-left: 5%;
    }
}
@media screen and (max-width:850px) {
    #container {
        display: block;
    }
    #profile {
        width: 90%;
    }
    .card {
        margin: 0 5%;
        margin-bottom: 30px;
    }
}

PdfReport.cshtml :

使用RazorEngine.NetCore需要修改下面兩處地方

刪除 @model PdfReportModel

將@Html.Raw(@style) 修改為 @@Raw(@style)

檢視檔案：點選檢視詳細內容

@using exportPdf.common
@model PdfReportModel   
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    @{
        string style = TemplateGadgetProvider.Instance.Load(@"wwwrootcsspdfReport.css");
    }
    <style>@Html.Raw(@style)</style>
</head>
<body>
    <div id="inner-nav"></div>
    <div id="container">
        <div id="profile">
            <div id="image">
                <img id="profile-photo" src="https://img2023.cnblogs.com/blog/233608/202303/233608-20230308165653594-2049775608.jpg" alt="Profile-Image">
                <a href="#" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ><i class="fas fa-pen stroke-transparent"></i></a>
            </div>
            <p id="name">@Model.Name<br><span id="email">@Model.Email</span></p>
            <p id="designation">前端開發工程師<br><span id="college">天將降大任於斯人也，必先苦其心志，勞其筋骨，餓其體膚，空乏其身，行拂亂其所為也，所以動心忍性，增益其所不能。——《孟子》 </span></p>
            <div id="social-links"><a href="#" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ><i class="fab fa-facebook-f stroke-transparent"></i></a><a><i
                        class="fab fa-twitter stroke-transparent"></i></a><a><i
                        class="fab fa-linkedin-in stroke-transparent"></i></a><a><i
                        class="fab fa-github stroke-transparent"></i></a></div>
            <a id="edit-intro" href="#" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ><i class="fas fa-pen-alt blue"></i>  </a>
            <hr width="100%">
            <div id="about">
                <p style="display:inline;">個人詳情</p>
                <a href="#" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ><i class="fas fa-pen stroke-transparent-blue"></i></a>
            </div>
            <p id="year-graduation">預計畢業年份<br><strong>2023年6月</strong></p>
            <p id="education">學歷<br><strong>湖南大學 本科</strong></p>
            <p id="more-about">專業<br><strong> 電腦科學與技術專業</strong></p>
            <p id="telephone">電話<br><strong>0532-2271351</strong></p>
            <p id="fax">傳真<br><strong>+91-532-25453441</strong></p>
        </div>
        <div id="info-cards">
            <div class="card">
                <p><i class="fas fa-briefcase stroke-transparent"></i>   專業技能</p>
                <ul>
                    <li>
                        <p class="tags">1. 熟練掌握HTML、CSS、JavaScript等前端基礎技術</p>
                    </li>
                    <li>
                        <p class="tags">2. 熟悉jQuery、Bootstrap等常用前端框架和庫</p>
                    </li>
                    <li>
                        <p class="tags">3. 瞭解Node.js、Express等後端開發技術</p>
                    </li>
                    <li>
                        <p class="tags">4. 掌握Git、Webpack等常用開發工具</p>
                    </li>
                    <li>
                        <p class="tags">5. 具備良好的編碼風格和檔案習慣</p>
                    </li>
                </ul>
            </div>
            <div class="card">
                <p><i class="fas fa-briefcase stroke-transparent"></i>   工作檢驗</p>
                <ul>
                    <li>
                        <p class="tags">1. 依帆網站首頁製作（個人專案）<br>
    - 使用HTML、CSS、JavaScript實現了一個響應式的網站首頁<br>
    - 使用Bootstrap進行佈局和樣式美化，使用jQuery實現輪播圖和導航欄效果<br>
    - 使用Webpack進行打包和優化，使用Git進行版本控制和部署</p>
                    </li>
                    <li>
                        <p class="tags">2. 藝風網站後臺管理系統（實習專案）<br>
    - 參與了一個基於Node.js和Express的後臺管理系統的開發<br>
    - 負責前端頁面的編寫，使用EJS模板引擎渲染資料<br>
    - 使用Ajax和Fetch進行資料互動，使用Element UI元件庫提升使用者體驗<br>
    - 遵循MVC架構，使用Mongoose操作MongoDB資料庫</p>
                    </li>
                </ul>
            </div>
            <div class="card">
                <p><i class="fas fa-graduation-cap stroke-transparent"></i>   自我評價</p>
                <ul>
                    <li>
                        <p class="tags">具備較強的學習能力和邏輯思維能力，喜歡接觸新技術和新知識</p>
                    </li>
                    <li>
                        <p class="tags">具備良好的溝通能力和團隊共同作業能力，能夠積極配合團隊完成任務</p>
                    </li>
                    <li>
                        <p class="tags">具備一定的創新能力和解決問題能力，能夠針對不同需求提出合理方案</p>
                    </li>
                </ul>
                <a href="#" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >+ Add new</a>
            </div>
        </div>
    </div>
</body>
</html>

ViewRenderService :

public class ViewRenderService
{
    private readonly IRazorViewEngine _razorViewEngine;
    private readonly ITempDataProvider _tempDataProvider;
    private readonly IServiceProvider _serviceProvider;
    public ViewRenderService(IRazorViewEngine razorViewEngine,
        ITempDataProvider tempDataProvider,
        IServiceProvider serviceProvider)
    {
        _razorViewEngine = razorViewEngine;
        _tempDataProvider = tempDataProvider;
        _serviceProvider = serviceProvider;
    }
    public async Task&lt;string&gt; RenderToStringAsync(string viewName, object model)
    {
        var httpContext = new DefaultHttpContext { RequestServices = _serviceProvider };
        var actionContext = new ActionContext(httpContext, new RouteData(), new ActionDescriptor());
        using (var sw = new StringWriter())
        {
            var viewResult = _razorViewEngine.FindView(actionContext, viewName, false);
            if (viewResult.View == null)
            {
                throw new ArgumentNullException($"{viewName} does not match any available view");
            }
            var viewDictionary = new ViewDataDictionary(new EmptyModelMetadataProvider(), new ModelStateDictionary())
            {
                Model = model
            };
            var viewContext = new ViewContext(
                actionContext,
                viewResult.View,
                viewDictionary,
                new TempDataDictionary(actionContext.HttpContext, _tempDataProvider),
                sw,
                new HtmlHelperOptions()
            );
            await viewResult.View.RenderAsync(viewContext);
            return sw.ToString();
        }
    }
}

Program.cs :

builder.Services.AddTransient<ViewRenderService>();

以上就是使用Select.HtmlToPdf.NetCore將HTML匯出為PDF的全部內容！

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