在一个简单的Jetty/Maven Hello World webapp中找不到404错误

Question

我按照提示创建一个"标准Web应用程序与码头和Maven" 正是作为Eclipse的维基描述:http://wiki.eclipse.org/Jetty/Tutorial/Jetty_and_Maven_HelloWorld#Developing_a_Standard_WebApp_with_Jetty_and_Maven

但是,当我运行webapp(mvn jetty:run)并转到localhost:8080/hello-world/hello时,我最终会遇到"HTTP ERROR 404问题访问/ hello-world/hello.原因:未找到".我已阅读文档,查看了wiki页面的历史记录,探讨了其他论坛和stackoverflow线程,但无法找到这个看似简单的问题的答案.我将发布我的源代码,但它与教程完全相同.

任何帮助,将不胜感激.我真的很想开始玩这种技术,但它仍然沮丧地继续抨击同样的死胡同.

(请注意:创建"JettyMavenHelloWorld"教程的第一部分工作正常.我的问题是第二部分,"JettyMavenHelloWarApp".这一部分标题为"使用Jetty和Maven开发标准WebApp")

JettyMavenHelloWarApp/pom.xml的

<project xmlns="http://maven.apache.org/POM/4.0.0" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

  <modelVersion>4.0.0</modelVersion>
  <groupId>org.example</groupId>
  <artifactId>hello-world</artifactId>
  <version>0.1-SNAPSHOT</version>
  <packaging>jar</packaging>
  <name>Jetty HelloWorld</name>

  <properties>
    <jettyVersion>7.2.0.v20101020</jettyVersion>
  </properties>

  <dependencies>
    <dependency>
      <groupId>org.eclipse.jetty</groupId>
      <artifactId>jetty-server</artifactId>
      <version>${jettyVersion}</version>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <!-- This plugin is needed for the servlet example -->
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>jetty-maven-plugin</artifactId>
        <version>${jettyVersion}</version>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>exec-maven-plugin</artifactId>
        <version>1.1</version>
        <executions>
          <execution><goals><goal>java</goal></goals></execution>
        </executions>
        <configuration>
          <mainClass>org.example.HelloWorld</mainClass>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

JettyMavenHelloWarApp/SRC /主/ JAVA /组织/示例/ HelloServlet.java

package org.example;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HelloServlet extends HttpServlet
{
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
    {
        response.setContentType("text/html");
        response.setStatus(HttpServletResponse.SC_OK);
        response.getWriter().println("<h1>Hello Servlet</h1>");
        response.getWriter().println("session=" + request.getSession(true).getId());
    }
}

JettyMavenHelloWarApp/src目录/主/ web应用/ WEB-INF/web.xml文件

<?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_2_5.xsd" 
   version="2.5">
  <servlet>
    <servlet-name>Hello</servlet-name>
    <servlet-class>org.example.HelloServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>Hello</servlet-name>
    <url-pattern>/hello/*</url-pattern>
  </servlet-mapping>
</web-app>

JettyMavenHelloWarApp/src目录/主/ web应用/ index.html的

<h1>Hello World Webapp</h1>
<a href="/hello">Hello Servlet</a>

Answer 1

你的应用程序上下文仍然是:"/",这样的网址是-该教程给出了不正确的URL http://localhost:8080,并http://localhost:8080/hello分别对静态和动态内容.

maven jetty插件文档确实声称默认上下文的名称与pom.xml中的artifactId相同,但这似乎不起作用.