Jetty'{servlet} / {parameter}'url路由 [英] Jetty '{servlet}/{parameter}' url routing

问题描述

我正在使用jetty 9.0.3。

I'm using jetty 9.0.3.

如何将URL（如www.myweb.com/{servlet}/{parameter}）映射到给定的servlet和参数？

How to map an URL such as www.myweb.com/{servlet}/{parameter} to the given servlet and parameter?

例如，URL/ client / 12312将路由到clientServlet及其 doGet 方法将收到12312作为参数。

For example, the URL '/client/12312' will route to clientServlet and its doGet method will receive 12312 as a parameter.

推荐答案

您将有两个部分来担心。

You'll have 2 parts to worry about.

1. 您的 WEB-INF / web.xml


2. 中的pathSpec HttpServletRequest.getPathInfo（）在您的servlet中。

1. The pathSpec in your WEB-INF/web.xml
2. The HttpServletRequest.getPathInfo() in your servlet.

pathSpec

code> WEB-INF / web.xml 你必须声明你的Servlet和你的url模式（也称为pathSpec）。

The pathSpec

In your WEB-INF/web.xml you have to declare your Servlet and your url-patterns (also known as the pathSpec).

示例：

<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app 
   xmlns="http://java.sun.com/xml/ns/javaee" 
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
   metadata-complete="false"
   version="3.0"> 

  <display-name>Example WebApp</display-name>

  <servlet>
    <servlet-name>clientServlet</servlet-name>
    <servlet-class>com.mycompany.ClientServlet</servlet-class>
  </servlet>

  <servlet-mapping>
    <servlet-name>clientServlet</servlet-name>
    <url-pattern>/client/*</url-pattern>
  </servlet-mapping>
</web-app>

这将设置实现为类的servlet com.mycompany.ClientServlet client code clientCvlet 然后指定用于传入请求URL的 / client / * 的url模式

This sets up the servlet implemented as class com.mycompany.ClientServlet on the name clientServlet then specifies the url-pattern of /client/* for incoming request URLs.

url-pattern结尾处的额外 / * 允许以 / client / 被接受，这对于pathInfo部分很重要。

The extra /* at the end of the url-pattern allows any incoming pattern that starts with /client/ to be accepted, this is important for the pathInfo portion.

接下来我们进入我们的Servlet实现。

Next we get into our Servlet implementation.

在你的 doGet（HttpServletRequest req，HttpServletResponse resp） / a>在ClientServlet上实现，您应该访问 req.g etPathInfo（）值，它将接收url模式上 / client 之后的请求URL部分。

In your doGet(HttpServletRequest req, HttpServletResponse resp) implementation on ClientServlet you should access the req.getPathInfo() value, which will receive the portion of the request URL that is after the /client on your url-pattern.

示例：

Request URL        Path Info
----------------   ------------
/client/           /
/client/hi         /hi
/client/world/     /world/
/client/a/b/c      /a/b/c

您可以根据路径信息

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