自定义URL重写

时间:2018-03-06 13:13:06

标签: asp.net-core-2.0 razor-pages

我想通过使用UseRewriter Middleware来重写一个简单的url。

var rewrite = new RewriteOptions()
    .AddRedirect("Page1From", "Page1To")        // Redirect
    .AddRewrite("Page2From", "Page2To", true);  // Rewrite

app.UseRewriter(rewrite);

这将导致网址“/ Page1From”重定向到“Page1To”,网址“Page2From”将显示“/ Page2To”的内容而不重定向。

我想通过使用数据库中的数据来实现AddRewrite方法,但我只找到了如何使用自定义规则重定向。

var rewrite = new RewriteOptions()
    .AddRedirect("Page1From", "Page1To")        // Redirect
    .AddRewrite("Page2From", "Page2To", true);  // Rewrite
    .Add(new MoviesRedirectRule(                // Custom Rule
        matchPaths: new[] { "/Page3From1", "/Page3From2", "/Page3From3" },
        newPath: "/Page3To"));

app.UseRewriter(rewrite);

,规则如下:

public class MoviesRedirectRule : IRule
{
    private readonly string[] matchPaths;
    private readonly PathString newPath;

    public MoviesRedirectRule(string[] matchPaths, string newPath)
    {
        this.matchPaths = matchPaths;
        this.newPath = new PathString(newPath);
    }

    public void ApplyRule(RewriteContext context)
    {
        var request = context.HttpContext.Request;

        // if already redirected, skip
        if (request.Path.StartsWithSegments(new PathString(this.newPath)))
        {
            return;
        }

        if (this.matchPaths.Contains(request.Path.Value))
        {
            var newLocation = $"{this.newPath}{request.QueryString}";

            var response = context.HttpContext.Response;
            response.StatusCode = StatusCodes.Status302Found;
            context.Result = RuleResult.EndResponse;
            response.Headers[HeaderNames.Location] = newLocation;
        }
    }
}

这将重定向以下网址:

  • / Page3From1
  • / Page3From2
  • / Page3From3

到/ Page3To

我想创建类似的东西,但不会重定向,但我想重写网址,以便网址保持不变,但会显示指定网址的内容。

有人可以告诉我我必须对响应对象做些什么更改才能使其正常工作?

1 个答案:

答案 0 :(得分:2)

致电adb -e emu finger touch <finger_id> 时添加的

RewriteRule只是替换请求中的URI部分(link to source code):

AddRewrite()

在您的情况下,由于您只替换request.Scheme = scheme; request.Host = host; request.Path = pathString; request.QueryString = query.Add(request.QueryString); 部分,Path方法将非常简单:

ApplyRule