RazorEngine.Templating MVC中View当模板

最近在做一个生成JSON的功能，比较笨的办法就是把需要的数据拆分开，保存到数据库，在从数据库中取出来进行拼接。这种方法比较笨，代码就不贴了。

需要注意拼接的时的转义字符：

"\"smallChapter\"" + ":" +"\""

　　后来想用T4模板生成，但是有个把数据当参数传递的过程，没有克服。把没有克服的代码贴出来，有大神知道的话，可以帮忙解决。(host报错)

public class Testt4
    {
        public class CustomTextTemplatingEngineHost : ITextTemplatingEngineHost, ITextTemplatingSessionHost
        {

            internal string TemplateFileValue;
            public string TemplateFile
            {
                get { return TemplateFileValue; }
            }

            private string fileExtensionValue = ".txt";
            public string FileExtension
            {
                get { return fileExtensionValue; }
            }

            private Encoding fileEncodingValue = Encoding.UTF8;
            public Encoding FileEncoding
            {
                get { return fileEncodingValue; }
            }
            private CompilerErrorCollection errorsValue;
            public CompilerErrorCollection Errors
            {
                get { return errorsValue; }
            }
            public IList<string> StandardAssemblyReferences
            {
                get
                {
                    return new string[]
                    {
                    typeof(System.Uri).Assembly.Location
                    };
                }
            }
            public IList<string> StandardImports
            {
                get
                {
                    return new string[]
                    {
                    "System"
                    };
                }
            }

            public bool LoadIncludeText(string requestFileName, out string content, out string location)
            {
                content = System.String.Empty;
                location = System.String.Empty;

                if (File.Exists(requestFileName))
                {
                    content = File.ReadAllText(requestFileName);
                    return true;
                }
                else
                {
                    return false;
                }
            }

            public object GetHostOption(string optionName)
            {
                object returnObject;
                switch (optionName)
                {
                    case "CacheAssemblies":
                        returnObject = true;
                        break;
                    default:
                        returnObject = null;
                        break;
                }
                return returnObject;
            }

            public string ResolveAssemblyReference(string assemblyReference)
            {
                if (File.Exists(assemblyReference))
                {
                    return assemblyReference;
                }

                string candidate = Path.Combine(Path.GetDirectoryName(this.TemplateFile), assemblyReference);
                if (File.Exists(candidate))
                {
                    return candidate;
                }
                return "";
            }

            public Type ResolveDirectiveProcessor(string processorName)
            {
                if (string.Compare(processorName, "XYZ", StringComparison.OrdinalIgnoreCase) == 0)
                {
                    //return typeof();
                }
                throw new Exception("Directive Processor not found");
            }

            public string ResolvePath(string fileName)
            {
                if (fileName == null)
                {
                    throw new ArgumentNullException("the file name cannot be null");
                }
                if (File.Exists(fileName))
                {
                    return fileName;
                }
                string candidate = Path.Combine(Path.GetDirectoryName(this.TemplateFile), fileName);
                if (File.Exists(candidate))
                {
                    return candidate;
                }
                return fileName;
            }

            public string ResolveParameterValue(string directiveId, string processorName, string parameterName)
            {
                if (directiveId == null)
                {
                    throw new ArgumentNullException("the directiveId cannot be null");
                }
                if (processorName == null)
                {
                    throw new ArgumentNullException("the processorName cannot be null");
                }
                if (parameterName == null)
                {
                    throw new ArgumentNullException("the parameterName cannot be null");
                }
                return String.Empty;
            }

            public void SetFileExtension(string extension)
            {
                fileExtensionValue = extension;
            }

            public void SetOutputEncoding(System.Text.Encoding encoding, bool fromOutputDirective)
            {
                fileEncodingValue = encoding;
            }

            public void LogErrors(CompilerErrorCollection errors)
            {
                errorsValue = errors;
            }

            //public AppDomain ProvideTemplatingAppDomain(string content)
            //{
            //    return AppDomain.CreateDomain("Generation App Domain");
            //}

            public ITextTemplatingSession CreateSession()
            {
                return Session;
            }

            public ITextTemplatingSession Session
            {
                get;
                set;
            }

            //https://blog.csdn.net/danielchan2518/article/details/51019083

            public AppDomain ProvideTemplatingAppDomain(string content)
            {
                //Assembly myAssembly = Assembly.GetAssembly(this.GetType());
                //string assemblePath = myAssembly.Location.Substring(0, myAssembly.Location.LastIndexOf("\\"));
                //AppDomainSetup ads = new AppDomainSetup()
                //{
                //    ApplicationName = "Generation App Domain",
                //    ApplicationBase = assemblePath,
                //    DisallowBindingRedirects = false,
                //    DisallowCodeDownload = true,
                //    ConfigurationFile = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile
                //};
                //AppDomain domain = AppDomain.CreateDomain("Generation App Domain", null, ads);
                //return domain;
                return AppDomain.CurrentDomain;
            }

        }

        public static void TestT4()
        {
            CustomTextTemplatingEngineHost host = new CustomTextTemplatingEngineHost();
            string filePath = @"E:\editsoft\t4.txt";
            host.TemplateFileValue = filePath;
            string input = File.ReadAllText(filePath);

//            string input = @"
//<#@template debug=""false"" hostspecific=""false"" language=""C#""#>
//<#@ output extension="".txt"" encoding=""utf-8"" #>
//<#@ parameter type=""Demo_T4.People"" name=""hzx"" #>
//Name:<#= hzx.Name #>  Age:<#= hzx.Age #>   Sex:<#= hzx.Sex #>
//            ";

            host.Session = new TextTemplatingSession();
            host.Session.Add("hzx", new People("韩兆新", 24, "男"));

            string output = new Engine().ProcessTemplate(input, host);
            Console.WriteLine(output);

            StringBuilder errorWarn = new StringBuilder();
            foreach (CompilerError error in host.Errors)
            {
                errorWarn.Append(error.Line).Append(":").AppendLine(error.ErrorText);
            }
            Console.WriteLine( errorWarn.ToString());

        }
    }

    [Serializable]
    public class People
    {
        public People(string name, uint age, string sex)
        {
            this.Name = name;
            this.Age = age;
            this.Sex = sex;
        }
        public string Name
        { set; get; }
        public uint Age
        { set; get; }
        public string Sex
        { set; get; }
    }

　　最后想到了MVC 的视图Rezor，当模板具体代码如下：

在控制器中写方法：通过写一个Ajax跳入这个方法

 public ActionResult GetDataJson()
｛
            string url = Request.Url.ToString(); //获取参数
            string bid = Request.QueryString[""];
            string cid = Request.QueryString[""];
        //获取数据定义成集合
           ArrayList arry = GenerateJsonData();
           ArrayList arrTitle = GetTile();
          ArrayList arrlanmu = GetLanMuContent();

var config = new TemplateServiceConfiguration();
                      GetData(arry, arrTitle, arrlanmu, config);

｝

　　GetData方法：

 private void GetData(ArrayList arry, ArrayList arrTitle, ArrayList arrlanmu, TemplateServiceConfiguration config)
        {
            using (var service = RazorEngine.Templating.RazorEngineService.Create(config))
            {
                var model = new { arrTitle, arry, arrlanmu };

                //获取视图的路径
                string templateFile = Server.MapPath("~/Views/ResolveTemplateJson/PhysicsJson.cshtml");
                //打开文件的内容
                string templateContent = System.IO.File.ReadAllText(templateFile, System.Text.Encoding.UTF8);
                //返回视图中的结果
                string results = service.RunCompile(templateContent, string.Empty, null, model);
                //把结构中的特殊字符进行处理
                results = results.Replace("<", "<").Replace(">", ">")
                   .Replace("&", "&").Replace("'", "'").Replace(""", "\"");

                string filePath = GetFilePath();

                 GetWriteValue(results, filePath);

                //写入txt中
                // string outputTextFile = @"d:\temp.txt";
                // System.IO.File.WriteAllText(outputTextFile, results);
            }
        }

GetFilePath

private string GetFilePath()
        {
            string filePath = "";
            if (Session["chapterNum"] != null)
            {
                int zhang = Convert.ToInt32(Session["chapterNum"]);
                int jie = Convert.ToInt32(Session["sectionNum"]);
                int xiaojie = Convert.ToInt32(Session["smallSectionNum"]);
                string jcName = Session["jcName"].ToString();
                string xkName = Session["xkName"].ToString();
                string NjName = Session["NjName"].ToString();
                string gradeTerm = Session["gradeTerm"].ToString();
                string webConfigFilePath = ConfigurationManager.AppSettings["FilePathConnectionString"].ToString();
                filePath = string.Format(webConfigFilePath + "{0}{1}{2}{3}/{4:00}/{5:00}{6:00}/",
            NjName, xkName, jcName, gradeTerm, zhang, jie, xiaojie);
            }

            return filePath;
        }

GetWriteValue()

private void GetWriteValue(string results, string filePath)
        {
            string webMapFilePath = ConfigurationManager.AppSettings["FilePath"].ToString();
            string Path = Server.MapPath(webMapFilePath + filePath);
            if (!Directory.Exists(Path))
            {
                Directory.CreateDirectory(Path);
            }
            string FileName = "bookData";

            if (!System.IO.File.Exists(Path + FileName + ".js"))
            {
                FileStream fsCreate = new FileStream(Path + FileName + ".js", FileMode.Create, FileAccess.Write);//创建写入文件
                StreamWriter sw = new StreamWriter(fsCreate);
                sw.WriteLine(results);//开始写入值
                sw.Close();
                fsCreate.Close();
            }
            else
            {
                FileStream fsCreate = new FileStream(Path + FileName + ".js", FileMode.Create, FileAccess.Write);//创建写入文件
                StreamWriter sw = new StreamWriter(fsCreate);
                sw.WriteLine(results);//开始写入值
                sw.Close();
                fsCreate.Close();
            }
        }

　　跳转视图的Ajax：

function ResolveTemplateJson() {
        var url = "/ResolveTemplateJson/GetDataJson/?csid=@ViewData[""]&bid=@ViewData[""]";
        $.ajax({
            url: url,
            type: "POST",
            success: function (data) {
                if (data == "ok") {
                    alert("保存成功！！");
                    window.location.href = "/UEditor/Index/?csid=@ViewData[""]&bid=@ViewData[""]";
                } else if (data == "error") {
                    alert("保存失败");
                }
            }
        });
    }

　　视图的代码：

@for (int i = 0; i < Model.arrTitle.Count; i++)
{
    if (Model.arrTitle[i].titles != null)
    {
        @:{
        @:"smallChapter": "@Model.arrTitle[i].titles",
        @:"isActive":false,
        @://当前用户选择的小节
        @:"ifstudy":false
        @:},
    }
}
],
 //全解版的内容
 "content":  [
 //第一小节的内容 一小结有n个知识点 知识点里面包含小知识点
@for (int j = 0; j < Model.arrlanmu.Count; j++)
{
    @:{
    @:"id":"@Model.arrlanmu[j].id",
    @:"knowledge":"@Model.arrlanmu[j].knowledge",
    @:"process":
    @:"Introduction":"@Model.arrlanmu[j].Introduction",
    for (int m = 0; m < Model.arry.Count; m++)
    {
        if (@Model.arrlanmu[j].id == @Model.arry[m].id)
        {
            @:smallKnowledge:[{
                 @:"id":"@Model.arry[m].smallID",
                 @:"fullVersion":[
                 @:"type":"textIntroduction",
                 @:"smalltitle":"@Model.arry[m].smallTitle",
                 @:"content":"@Model.arry[m].smallContent",
                 @:},
                 @Model.arry[m].smallSubjectJson
                 @:],
                 @:}
            @:]
        }
    }

    @:}
}

　　

　　引入的命名空间：

using RazorEngine.Configuration;
using RazorEngine.Templating;

　　Negut安装：