Visual Studio for Mac能否开发ASP MVC 5？存在哪些问题及解决办法？

Absolutely, you can use Visual Studio for Mac to build ASP.NET MVC 5 applications—even though official support is limited, the existing project template means it’s definitely viable. Let’s break down the common issues you’ll face and workarounds to keep your development flowing:

Common Issues & Workarounds #

1. Razor IntelliSense Not Working (As You Noted) #

You mentioned you’re okay with this, but for anyone else hitting it:

• This is the most widespread limitation since VS for Mac’s Razor tooling is optimized for newer frameworks like ASP.NET Core.
• Partial workaround: Manually reference namespaces in your web.config (under the Views folder) to avoid typos. For example:

  <system.web.webPages.razor>
    <pages pageBaseType="System.Web.Mvc.WebViewPage">
      <namespaces>
        <add namespace="YourProject.Models" />
        <add namespace="System.Web.Mvc" />
      </namespaces>
    </pages>
  </system.web.webPages.razor>
  

• You can also use the "Go to Definition" feature to navigate to model/controller code, which helps compensate for missing IntelliSense.

2. Custom Routing Configuration Problems #

Custom routes often fail to behave as expected in VS for Mac’s local debugging environment. Here’s how to fix this:

• First, double-check your RouteConfig.cs syntax—sometimes subtle typos (that go unnoticed without IntelliSense) cause issues. For example, ensure your route constraints are correctly formatted:

  routes.MapRoute(
      name: "CustomRoute",
      url: "products/{category}/{id}",
      defaults: new { controller = "Products", action = "Details", id = UrlParameter.Optional },
      constraints: new { id = @"\d+" } // Ensure regex is properly escaped
  );
  

• If routing still breaks locally, try cleaning your solution (Build > Clean All), deleting the bin and obj folders manually, then rebuilding. This clears cached route configurations that might be conflicting.
• Another trick: Run the application using the built-in Kestrel server instead of IIS Express (VS for Mac’s IIS Express implementation has known quirks with MVC5 routing). You can switch this in the run dropdown at the top of the IDE.

3. Other Potential Hiccups #

• Package Management: NuGet packages for older MVC5 dependencies might not install smoothly. If you get package conflicts, try updating to the latest compatible versions of Microsoft.AspNet.Mvc (up to v5.2.9 is the last stable release) and related packages like Microsoft.AspNet.Razor.
• Debugging Limitations: Sometimes breakpoints in Razor views won’t hit, or variable inspection is inconsistent. Stick to debugging controller logic where possible, and use Debug.WriteLine() to output values from views if needed.
• Publishing: Publishing to IIS or Azure might require manual configuration of the web.config (like setting compilation debug="false"). VS for Mac’s publish wizard for MVC5 is basic, so you may need to tweak settings post-publish.

Final Thoughts #

While it’s not the ideal tool for MVC5 (Visual Studio on Windows has full support), VS for Mac works for building and maintaining MVC5 apps if you’re willing to work around the tooling gaps. Most core development tasks—writing controllers, models, views, and testing business logic—will work fine. The key is to rely on manual configuration checks and workarounds for the tooling limitations.

内容的提问来源于stack exchange，提问作者user5470600