VS 2012中的HTTP处理程序和javascript捆绑
作者：互联网
我目前正在尝试设置一个项目来实现javascript文件的本地化(如here所述),但同时我想在项目中捆绑和缩小javascript.我遵循了关于捆绑和缩小here的教程
我已经能够让两者分开工作,但是当我试图让它们一起工作时,我无法使本地化正常工作.我认为这是因为捆绑为它生成的捆绑/缩小的javascript创建了它自己的路由处理,所以我在webconfig中定义的httpHandler被忽略了.我一直收到javascript错误,说“CustomTranslate未定义”.
我试图这样做是因为我们正在使用ExtJS构建一些控件,但我们需要能够将本地化应用于这些控件.关于如何让他们一起工作的任何帮助/想法将不胜感激.
我没有使用MVC,而是在Visual Studio 2012中的asp.net中执行此操作.
这是我的代码：
BundleConfig.cs
namespace TranslationTest
{
public class BundleConfig
{
public static void RegisterBundles(BundleCollection bundles)
{
//default bundles addeed here...
bundles.Add(new ScriptBundle("~/bundles/ExtJS.axd").Include("~/Scripts/ExtJS/ext-all.js", "~/Scripts/ExtJS/TestForm.js"));
}
}
}
web.config中：
<globalization uiCulture="auto" />
<httpHandlers>
<add verb="*" path="/bundles/ExtJS.axd" type="TranslationTest.ScriptTranslator, TranslationTest" />
</httpHandlers>
Default.aspx的
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="TranslationTest._Default" %>
<asp:Content runat="server" ID="BodyContent" ContentPlaceHolderID="MainContent">
<script src="/bundles/ExtJS.axd"></script>
</asp:Content>
TestForm.js：
Ext.require([
'Ext.form.*',
'Ext.layout.container.Column',
'Ext.tab.Panel'
]);
Ext.onReady(function () {
Ext.QuickTips.init();
var bd = Ext.getBody();
bd.createChild({ tag: 'h2', html: 'Form 1' });
var simple = Ext.create('Ext.form.Panel', {
url: 'save-form.php',
frame: true,
title: 'Simple Form',
bodyStyle: 'padding:5px 5px 0',
width: 350,
fieldDefaults: {
msgTarget: 'side',
labelWidth: 75
},
defaultType: 'textfield',
defaults: {
anchor: '100%'
},
items: [{
fieldLabel: CustomTranslate(FirstName),
name: 'first',
allowBlank: false
}, {
fieldLabel: CustomTranslate(LastName),
name: 'last'
}, {
fieldLabel: CustomTranslate(Company),
name: 'company'
}, {
fieldLabel: CustomTranslate(Email),
name: 'email',
vtype: 'email'
}, {
xtype: 'timefield',
fieldLabel: CustomTranslate(Time),
name: 'time',
minValue: '8:00am',
maxValue: '6:00pm'
}],
buttons: [{
text: CustomTranslate(Save)
}, {
text: CustomTranslate(Cancel)
}]
});
simple.render(document.body);
});
目前,FirstName,LastName等都存储在资源文件中,如上面的链接示例所示.
ScriptTranslator.cs
namespace TranslationTest
{
public class ScriptTranslator : IHttpHandler
{
#region IHttpHandler Members
public bool IsReusable
{
get { return false; }
}
public void ProcessRequest(HttpContext context)
{
string relativePath = context.Request.AppRelativeCurrentExecutionFilePath.Replace(".axd", string.Empty);
string absolutePath = context.Server.MapPath(relativePath);
string script = ReadFile(absolutePath);
string translated = TranslateScript(script);
context.Response.Write(translated);
Compress(context);
SetHeadersAndCache(absolutePath, context);
}
#endregion
private void SetHeadersAndCache(string file, HttpContext context)
{
context.Response.AddFileDependency(file);
context.Response.Cache.VaryByHeaders["Accept-Language"] = true;
context.Response.Cache.VaryByHeaders["Accept-Encoding"] = true;
context.Response.Cache.SetLastModifiedFromFileDependencies();
context.Response.Cache.SetExpires(DateTime.Now.AddDays(7));
context.Response.Cache.SetValidUntilExpires(true);
context.Response.Cache.SetCacheability(HttpCacheability.Public);
}
#region Localization
private static Regex REGEX = new Regex(@"CustomTranslate\(([^\))]*)\)", RegexOptions.Singleline | RegexOptions.Compiled);
private string TranslateScript(string text)
{
MatchCollection matches = REGEX.Matches(text);
ResourceManager manager = new ResourceManager(typeof(TranslationTest.App_GlobalResources.text));
foreach (Match match in matches)
{
object obj = manager.GetObject(match.Groups[1].Value);
if (obj != null)
{
text = text.Replace(match.Value, CleanText(obj.ToString()));
}
}
return text;
}
private static string CleanText(string text)
{
text = text.Replace("'", "\\'");
text = text.Replace("\\", "\\\\");
return text;
}
private static string ReadFile(string absolutePath)
{
if (File.Exists(absolutePath))
{
using (StreamReader reader = new StreamReader(absolutePath))
{
return reader.ReadToEnd();
}
}
return null;
}
#endregion
#region Compression
private const string GZIP = "gzip";
private const string DEFLATE = "deflate";
private static void Compress(HttpContext context)
{
if (IsEncodingAccepted(DEFLATE, context))
{
context.Response.Filter = new DeflateStream(context.Response.Filter, CompressionMode.Compress);
SetEncoding(DEFLATE, context);
}
else if (IsEncodingAccepted(GZIP, context))
{
context.Response.Filter = new GZipStream(context.Response.Filter, CompressionMode.Compress);
SetEncoding(GZIP, context);
}
}
private static bool IsEncodingAccepted(string encoding, HttpContext context)
{
return context.Request.Headers["Accept-encoding"] != null && context.Request.Headers["Accept-encoding"].Contains(encoding);
}
private static void SetEncoding(string encoding, HttpContext context)
{
context.Response.AppendHeader("Content-encoding", encoding);
}
#endregion
}
}
的global.asax.cs
namespace TranslationTest
{
public class Global : HttpApplication
{
void Application_Start(object sender, EventArgs e)
{
Microsoft.Web.Optimization.BundleTable.Bundles.EnableDefaultBundles();
BundleConfig.RegisterBundles(System.Web.Optimization.BundleTable.Bundles);
AuthConfig.RegisterOpenAuth();
}
}
}
我希望我已经涵盖了所有内容,但如果有任何遗漏,请告诉我.提前致谢！！
解决方法:
好的,我已经在你的例子中设置了所有东西,我已经让它工作但你需要使用IBundleTransform接口.我所做的每件事的细节都发布在下面..
我必须创建一个类来处理bundle转换(即转换),而不是允许默认行为.
public class JsLocalizationTransform : IBundleTransform
{
public JsLocalizationTransform(){}
#region IBundleTransform Members
public void Process(BundleContext context, BundleResponse response)
{
string translated = TranslateScript(response.Content);
response.Content = translated;
}
#endregion
#region Localization
private static Regex REGEX = new Regex(@"CustomTranslate\(([^\))]*)\)", RegexOptions.Singleline | RegexOptions.Compiled);
private string TranslateScript(string text)
{
MatchCollection matches = REGEX.Matches(text);
ResourceManager manager = new ResourceManager(typeof(TranslationTest.App_GlobalResources.text));
foreach (Match match in matches)
{
object obj = manager.GetObject(match.Groups[1].Value);
if (obj != null)
{
text = text.Replace(match.Value, CleanText(obj.ToString()));
}
}
return text;
}
private static string CleanText(string text)
{
//text = text.Replace("'", "\\'");
text = text.Replace("\\", "\\\\");
return text;
}
#endregion
}
然后在BundleConfig.RegisterBundles方法中,您需要创建并添加如下所示的包：
var extjsBundle = new Bundle("~/bundles/ExtJS").Include("~/Scripts/ExtJS/ext-all.js", "~/Scripts/ExtJS/TestForm.js");
extjsBundle.Transforms.Clear();
extjsBundle.Transforms.Add(new JsLocalizationTransform());
extjsBundle.Transforms.Add(new JsMinify());
bundles.Add(extjsBundle);
然后,我可以从web.config中删除HttpHandler,因为它会通过bundler自动配置.我还必须对global.asax.cs中的Application_Start方法进行一些更改
void Application_Start(object sender, EventArgs e)
{
//Microsoft.Web.Optimization.BundleTable.Bundles.EnableDefaultBundles();
BundleTable.EnableOptimizations = true; //Added this line..
BundleConfig.RegisterBundles(System.Web.Optimization.BundleTable.Bundles);
AuthConfig.RegisterOpenAuth();
}
因为JSLocalisationTransform类正在处理bundle转换和转换,所以我完全删除了ScriptTranslator类.
希望有所帮助.
标签：javascript,asp-net,localization,bundling-and-minification,httphandler 来源： https://codeday.me/bug/20190520/1142270.html