使用Guice Servlet和Jetty将路径映射到servlet而不使用web.xml
作者:互联网
我正在努力让Guice Servlet工作来配置Jetty如何在这个简单的情况下为静态页面提供Web请求.
我创建了一个简单的应用程序,它应该映射两个不同的请求,一个使用GuiceServlet,另一个不使用.后者工作,而GuiceServlet映射一个返回404错误.
有小费吗?我正在使用:JDK 1.7.0_15; eclipse.jetty.jetty-servlet 8.1.9.v20130131; guice-servlet 3.0.谢谢.
public class Main {
public static void main(String... args) {
Guice.createInjector().getInstance(Main.class).start();
}
public void start() {
Server server = new Server(8080);
ServletContextHandler handler = new ServletContextHandler(server, "/", ServletContextHandler.SESSIONS);
handler.addEventListener(new MyGuiceServletConfig());
handler.addServlet(MyServlet.class, "/non-guice");
server.setHandler(handler);
try {
server.start();
server.join();
} catch (Exception e) {
e.printStackTrace();
}
}
}
public class MyGuiceServletConfig extends GuiceServletContextListener {
@Override
protected Injector getInjector() {
return Guice.createInjector(new ServletModule() {
@Override
protected void configureServlets() {
System.out.println("MyGSC->getInjector->configureServlets"); //I'm seeing this in the console...
serve("/guice").with(MyServlet.class);
}
});
}
}
@Singleton
public class MyServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.getWriter().print("Hello!\nYour path is: " + request.getServletPath());
}
}
除此之外,创建各种喷射器的最佳方法是什么?我有这样的main(..)结构,所以我可以插入其他模块,让我在MyGuiceServletConfig中指定MyServletModule,就像我在某处看到的那样 – 这是正确的吗?
解决方法:
我最终能够以一种有效的方式更简单.为“/”路径添加DefaultServlet是必要的:
public class MyMain {
public static void main(String... args) throws Exception {
Guice.createInjector(new MyServletModule());
Server server = new Server(8080);
ServletContextHandler handler =
new ServletContextHandler(server, "/", ServletContextHandler.SESSIONS);
handler.addFilter(GuiceFilter.class, "/*", allOf(DispatcherType.class));
handler.addServlet(DefaultServlet.class, "/");
server.start();
}
}
@Singleton
public class MyServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.getWriter().print("Hello!\nYour path is: " + request.getServletPath());
}
}
public class MyServletModule extends ServletModule {
@Override
protected void configureServlets() {
serve("/guice").with(MyServlet.class);
}
}
标签:java,jetty,guice,embedded-jetty,guice-servlet 来源: https://codeday.me/bug/20190625/1285597.html