【发布时间】：2014-06-09 14:34:04
【问题描述】：
我按照此页面的教程进行操作。http://www.coreservlets.com/Apache-Tomcat-Tutorial/tomcat-7-with-eclipse.html 并下载了 test-app zip 文件。该文件运行良好。但是，当我尝试创建一个简单的 helloworld Servlet 时，它会出现 404 错误。我也在论坛上看到过相关的问题，但似乎没有一个能解决这个问题。我正在使用 tomcat7 和 java6 ee。 我能够添加链接并访问静态网页纯 HTML 页面，但是当我尝试访问 servlet 时得到 404。 这是我的 servlet 代码。
@WebServlet(name="LoginServlet1",urlPatterns={"/LoginServlet1"})
public class LoginServlet1 extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println
("<!DOCTYPE html>\n" +
"<html>\n" +
"<head><title>A Test Servlet</title></head>\n" +
"<body bgcolor=\"#fdf5e6\">\n" +
"<h1>Test</h1>\n" +
"<p>Simple servlet for testing.</p>\n" +
"</body></html>");
}
}
这是我的 index.html
<!DOCTYPE html>
<html>
<head><title>Test Web App for Tomcat 7 or Other Servlet 3.0 Container</title>
<link rel="stylesheet"
href="./css/styles.css"
type="text/css"/>
</head>
<body>
<table class="title">
<tr><th>Test Web App for Tomcat 7</th></tr>
</table>
<p/>
<fieldset>
<ul>
<li><a href="LoginServlet1">hello</a> The HelloWorld servlet that
generates plain text.</li>
</ul>
</fieldset>
<p/>
</body></html>
这是启动期间的控制台日志。
Jun 08, 2014 11:00:55 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib
Jun 08, 2014 11:00:55 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:test-app' did not find a matching property.
Jun 08, 2014 11:00:55 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Jun 08, 2014 11:00:55 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Jun 08, 2014 11:00:55 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 989 ms
Jun 08, 2014 11:00:55 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Jun 08, 2014 11:00:55 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.47
Jun 08, 2014 11:00:56 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /home/karan/tomcat eclipse/webapps/SensorWebApplication4
Jun 08, 2014 11:00:58 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /home/karan/tomcat eclipse/webapps/examples
Jun 08, 2014 11:00:58 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
Jun 08, 2014 11:00:58 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
Jun 08, 2014 11:00:58 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@6c814dbd')
Jun 08, 2014 11:00:58 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /home/karan/tomcat eclipse/webapps/SensorWebApplication1
Jun 08, 2014 11:01:00 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /home/karan/tomcat eclipse/webapps/SensorWebApplication9
Jun 08, 2014 11:01:01 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /home/karan/tomcat eclipse/webapps/ROOT
Jun 08, 2014 11:01:01 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /home/karan/tomcat eclipse/webapps/host-manager
Jun 08, 2014 11:01:01 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /home/karan/tomcat eclipse/webapps/manager
Jun 08, 2014 11:01:01 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Jun 08, 2014 11:01:01 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Jun 08, 2014 11:01:01 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 6144 ms
【问题讨论】：
-
它给出 404 在哪里？应用部署成功了吗？
-
yes 部署成功。当我尝试导航到页面 localhost:8080/test-app/LoginServlet1 时出现错误
-
tomcat statup 是否有错误？
-
上下文路径的名称是什么？在 tomcat 中，它由战争名称表示。应该是
test-app。 -
@Dennis 我在安装过程中收到警告，这可能是问题的一部分吗？
标签： java eclipse tomcat servlets