Java 在Jetty中通过默认servlet提供静态资源
我的Servlet(在Jetty上运行)还应该部署静态目录中的静态内容 目录结构:Java 在Jetty中通过默认servlet提供静态资源,java,servlets,jetty,servlet-filters,Java,Servlets,Jetty,Servlet Filters,我的Servlet(在Jetty上运行)还应该部署静态目录中的静态内容 目录结构: / - static/ - [static files] - WEB-INF/ - [my servlet .class files and the web.xml] My web.xml <?xml version="1.0" encoding="ISO-8859-1"?> <web-app xmlns="http://java.sun.com/xml/ns/
/
- static/
- [static files]
- WEB-INF/
- [my servlet .class files and the web.xml]
My web.xml
<?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"
version="3.0">
<filter>
<filter-name>filter</filter-name>
<filter-class>com.example.StaticFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>filter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
和我的过滤器:
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
public class StaticFilter implements Filter {
@Override
public void init(FilterConfig fc) throws ServletException {
}
@Override
public void destroy() {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
String path = req.getRequestURI().substring(req.getContextPath().length());
if (path.startsWith("/static")) {
request.getRequestDispatcher(path).forward(request, response);
} else {
chain.doFilter(request, response);
}
}
}
现在,如果调用/static/style.css,我希望从/static获取文件,而不是重定向到servlet
服务器:Jetty 9.1.0 RC1您在
“/*”
的路径规范中定义的@WebServlet
正在阻止执行默认servlet
你基本上是说,“我知道我在做什么,我希望所有的请求,所有的路径,都能通过我”
考虑在路径规范中设置Servlet,路径为“/sample”
,或者“/sample/*”
,或者类似的东西。除了“/”
或“/*”
之外的任何内容都可以捕获所有内容
@WebServlet(“/sample/*”)
否则,您可以在任何容器中引用default
servlet,而不仅仅是Jetty(它是servlet规范的一个必需特性),就像这样
getServletContext().getNamedDispatcher(“默认”).forward(请求、响应);
您有一个定义为过滤器的HttpServlet?抱歉,我忘记了过滤器的代码,编辑了问题您知道静态内容将由DefaultServlet提供,根据servlet规范,对吗?是的,(现在)我知道。但是我如何调用DefaultServlet呢?通过在web.xml中定义一个Servlet,classorg.eclipse.jetty.Servlet.DefaultServlet
?在哪个Servlet规范中指定了这个强制的“默认”Servlet?Servlet3.0规范只说“许多容器为服务内容提供了一个隐式的默认Servlet。”
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
public class StaticFilter implements Filter {
@Override
public void init(FilterConfig fc) throws ServletException {
}
@Override
public void destroy() {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
String path = req.getRequestURI().substring(req.getContextPath().length());
if (path.startsWith("/static")) {
request.getRequestDispatcher(path).forward(request, response);
} else {
chain.doFilter(request, response);
}
}
}