Java web.xml URL模式_Java_Html_Servlets_Web.xml_Url Pattern

Java web.xml URL模式

java html servlets

Java web.xml URL模式,java,html,servlets,web.xml,url-pattern,Java,Html,Servlets,Web.xml,Url Pattern,有人能告诉我关于设置URL模式的规则的信息吗？如果我使用/作为索引页，我还需要使用request.getRequestDispatcher/html/file.html.forwardrequest，response File File.html位于war文件夹下的html文件夹中，html文件夹位于WEB-INF的同一文件夹中谁能给我提个建议吗？谢谢您可以在web.xml中定义一个servlet，如下所示，然后使用request.getRequestDispatcherfile.forwa

有人能告诉我关于设置URL模式的规则的信息吗？如果我使用/作为索引页，我还需要使用request.getRequestDispatcher/html/file.html.forwardrequest，response

File File.html位于war文件夹下的html文件夹中，html文件夹位于WEB-INF的同一文件夹中

谁能给我提个建议吗？

谢谢

您可以在web.xml中定义一个servlet，如下所示，然后使用request.getRequestDispatcherfile.forwardrequest，response，本质上，您将请求发送到一个servlet，其映射为/file，该servlet将指向您的资源/html/file.html。请注意，尽管元素名是jsp文件，但您可以从中指向HTML

<servlet>
    <servlet-name>FileServlet</servlet-name>
    <jsp-file>/html/file.html</jsp-file>
</servlet>
<servlet-mapping>
    <servlet-name>FileServlet</servlet-name>
    <url-pattern>/file</url-pattern>
</servlet-mapping>

二,。扩展映射：

如果要创建扩展映射，请使用servlet映射*。。例如：

<servlet-mapping>
    <servlet-name>FileServlet</servlet-name>
    <url-pattern>*.html</url-pattern> <!-- http://localhost:7001/MyTestingApp/index.html would map this servlet. Also, please note that this servlet mapping would also be selected even if the request is `http://localhost:7001/MyTestingApp/foo/index.html` unless you have another servlet mapping as `/foo/*`.  -->
</servlet-mapping>

<servlet-mapping>
    <servlet-name>FileServlet</servlet-name>
    <url-pattern>/</url-pattern> <!-- Suppose you have mapping defined as in above 2 example as well, and request comes for `http://localhost:7001/MyTestingApp/catalog/index.jsp` then it would mapped with servlet  -->
</servlet-mapping>

<servlet-mapping>
    <servlet-name>FileServlet</servlet-name>
    <url-pattern>/catalog</url-pattern> <!-- Only requests with http://localhost:7001/MyTestingApp/catalog will match this servlet   -->
</servlet-mapping>

四,。精确匹配映射：

假设要定义精确匹配映射，则不要使用任何通配符或其他字符，并定义精确匹配，如/catalog。例如：

<servlet-mapping>
    <servlet-name>FileServlet</servlet-name>
    <url-pattern>*.html</url-pattern> <!-- http://localhost:7001/MyTestingApp/index.html would map this servlet. Also, please note that this servlet mapping would also be selected even if the request is `http://localhost:7001/MyTestingApp/foo/index.html` unless you have another servlet mapping as `/foo/*`.  -->
</servlet-mapping>

<servlet-mapping>
    <servlet-name>FileServlet</servlet-name>
    <url-pattern>/</url-pattern> <!-- Suppose you have mapping defined as in above 2 example as well, and request comes for `http://localhost:7001/MyTestingApp/catalog/index.jsp` then it would mapped with servlet  -->
</servlet-mapping>

<servlet-mapping>
    <servlet-name>FileServlet</servlet-name>
    <url-pattern>/catalog</url-pattern> <!-- Only requests with http://localhost:7001/MyTestingApp/catalog will match this servlet   -->
</servlet-mapping>

六,。匹配所有映射：

如果希望将所有请求与一个映射匹配，或者覆盖所有其他servlet映射，那么创建一个映射为/*

以下是JMS规范的汇总图：

您可以在web.xml中定义一个servlet，如下所示，然后使用request.getRequestDispatcherfile.forwardrequest，response，本质上，您将请求发送到一个servlet，该servlet的映射为/file，该servlet将指向您的资源/html/file.html。请注意，尽管元素名是jsp文件，但您可以从中指向HTML

<servlet>
    <servlet-name>FileServlet</servlet-name>
    <jsp-file>/html/file.html</jsp-file>
</servlet>
<servlet-mapping>
    <servlet-name>FileServlet</servlet-name>
    <url-pattern>/file</url-pattern>
</servlet-mapping>