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I'm trying to reproduce the solution given in this question but I'm still getting the same error.

Tomcat 7 keeps giving me a 404. What am I doing wrong?

This is the servlet code:

edu@ubuntu:~/ch1$ cat ch1servlet.java
package com.example;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class ch1servlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
    PrintWriter out = response.getWriter();
    java.util.Date today = new java.util.Date();
    out.println("<html> " +"<body>" +"<h1 align=center>HF\'s Chapter1 Servlet</h1>" +" " + "<br>" + today + "</body>" + "</html>");
    }
}

Which was compiled with:

edu@ubuntu:~/ch1/WEB-INF$ javac -classpath /usr/share/tomcat7/lib/servlet-api.jar -d classes ../ch1servlet.java
edu@ubuntu:~/ch1/WEB-INF$ ls classes/com/example/ch1servlet.class
classes/com/example/ch1servlet.class

This is the content of web.xml

edu@ubuntu:~/ch1/WEB-INF$ cat web.xml
<?xml version="1.0" encoding="UTF-8"?>
<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"
>
    <servlet>
        <servlet-name>Chapter1 Servlet</servlet-name>
        <servlet-class>com.example.ch1servlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>Chapter1 Servlet</servlet-name>
        <url-pattern>/Serv1</url-pattern>
    </servlet-mapping>
</web-app>

Then I copied the ch1 directory to $CATALINA_HOME/webapps

edu@ubuntu:~/ch1$ cd ..
edu@ubuntu:~$ ps -aux | grep tomcat
tomcat7   1053  0.3 11.3 2557684 85272 ?       Sl   03:12   0:51 /usr/lib/jvm/java-8-oracle/bin/java -Djava.util.logging.config.file=/var/lib/tomcat7/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.awt.headless=true -Xmx128m -XX:+UseConcMarkSweepGC -Djava.endorsed.dirs=/usr/share/tomcat7/endorsed -classpath /usr/share/tomca 7/bin/bootstrap.jar:/usr/share/tomcat7/bin/tomcat-juli.jar -Dcatalina.base=/var/lib/tomcat7 -Dcatalina.home=/usr/share/tomcat7 -Djava.io.tmpdir=/tmp/tomcat7-tomcat7-tmp org.apache.catalina.startup.Bootstrap start
edu       2259  0.0  0.1  11744   916 pts/1    S+   07:24   0:00 grep --color=auto tomcat
edu@ubuntu:~$ sudo mkdir /usr/share/tomcat7/webapps
edu@ubuntu:~$ sudo cp -rf ch1/ /usr/share/tomcat7/webapps/
edu@ubuntu:~$ ls /usr/share/tomcat7/webapps/
ch1
edu@ubuntu:~$

When I try to access 192.168.1.45:8080/ch1/Serv1

I get the infamous 404 "The requested resource (/ch1/Serv1/) is not available"

This is the version of java I'm using:

edu@ubuntu:~$ java -version
java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)

I repeated quite the same process from different tutorials about a dozen of times and I always get stuck in the same point.

4

2 回答 2

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复制文件并修改 web.xml 后，您必须重新启动 tomcat 以加载新的 web.xml 文件。

于 2014-04-21T14:56:30.143 回答
0

好的，这有点令人讨厌。

我复制了 CATALINA_BASE/webapps 中的目录，而不是 CATALINA_HOME/webapps 我找到的每个教程都告诉我的目录。

有效。我只是想知道为什么。

我想知道为什么 CATALINA_HOME 中没有 webapps 目录而我必须创建它。

于 2014-04-22T04:19:12.610 回答