我已按照Eclipse wiki 上的说明完全按照说明创建“带有 Jetty 和 Maven 的标准 WebApp”: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“访问 /hello-world/hello 的 HTTP 错误 404 问题。原因:未找到”。我通读了文档,查看了 wiki 页面的历史,浏览了其他论坛和 stackoverflow 线程,但找不到这个看似简单问题的答案。我将发布我的源代码,但它实际上与教程相同。
任何帮助,将不胜感激。我真的很想开始使用这项技术,但是不断地撞到同样的死胡同令人沮丧。
(请注意:教程的第一部分创建“JettyMavenHelloWorld”工作正常。我的问题是第二部分“JettyMavenHelloWarApp”。本节标题为“使用 Jetty 和 Maven 开发标准 WebApp”)
JettyMavenHelloWarApp/pom.xml
<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/main/java/org/example/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/main/webapp/WEB-INF/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_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/main/webapp/index.html
<h1>Hello World Webapp</h1>
<a href="/hello">Hello Servlet</a>