Tomcat服务器无法启动
[英]Tomcat server failes to start
问题描述
I have searched a lot and tried many solutions but I can't get the server to run. 
我已经搜索了很多并尝试了许多解决方案，但是我无法使服务器运行。 I am trying to make a login app using jsp and servlets . 我正在尝试使用jsp和servlets创建一个登录应用servlets 。 First I created the index.jsp file which looks like this: 首先，我创建了index.jsp文件，如下所示：
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form name="loginform" action="login" method="post">
<p>User Name: <input type="text" name="username"><br>
Password: <input type="password" name="password"><br>
<input type="submit">
</form>
</body>
</html>
When I selected the Run on Server option it worked just fine and displayed the form. 当我选择Run on Server上Run on Server选项时，它运行良好并显示了表格。 After that I created a new servlet named Login : 之后，我创建了一个名为Login的新servlet：
package servlets;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Login
*/
@WebServlet("/Login")
public class Login extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public Login() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
System.out.println("We are in Post method servlet");
String username = "user";
String password = "rood";
String un = request.getParameter(username);
String pw = request.getParameter(password);
String msg = " ";
if (un.equals(username) && pw.equals(password)) {
msg = "Hello " + un + " Your login is sucessful";
} else {
msg = "Hello " + un + "Your login failed";
}
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<font size='6' color=red>" + msg + "</font>");
}
}
and I have configured the web.xml file like this: 并且我已经像这样配置了web.xml文件：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>LoginExample</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>Login</servlet-name>
<servlet-class>servlets.Login</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Login</servlet-name>
<url-pattern>Login</url-pattern>
</servlet-mapping>
</web-app>
Now when I click again Run on server I get an error Server Tomcat v7.0 Server at localhost failed to start. 现在，当我再次单击Run on server出现错误Server Tomcat v7.0 Server at localhost failed to start.
I will post all the output I get in the console. 我将发布在控制台中的所有输出。 I appologise for this post being so long but I said to post everything maybe it will be more easier for someone to figure it out what is wrong. 我对这篇文章发布时间过长表示歉意，但我说要发布所有内容，也许某人更容易找出问题所在。 So: 所以：
Feb 01, 2015 11:24:27 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:LoginExample' did not find a matching property.
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version: Apache Tomcat/7.0.57
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built: Nov 3 2014 08:39:16 UTC
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number: 7.0.57.0
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name: Windows 8.1
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version: 6.3
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture: x86
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JAVA_HOME: C:\Program Files\Java\jre1.8.0_31
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version: 1.8.0_31-b13
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor: Oracle Corporation
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE: C:\Users\W7\Desktop\drept\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME: C:\Users\W7\Desktop\apache-tomcat-7.0.57
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=C:\Users\W7\Desktop\drept\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=C:\Users\W7\Desktop\apache-tomcat-7.0.57
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dwtp.deploy=C:\Users\W7\Desktop\drept\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=C:\Users\W7\Desktop\apache-tomcat-7.0.57\endorsed
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dfile.encoding=Cp1252
Feb 01, 2015 11:24:28 AM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre1.8.0_31\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre1.8.0_31/bin/client;C:/Program Files/Java/jre1.8.0_31/bin;C:/Program Files/Java/jre1.8.0_31/lib/i386;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\MinGW\bin;C:\MinGW\msys\1.0\bin\;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Qt\4.8.4\bin;C:\Users\W7\Documents\mingw\bin;C:\Program Files\Java\jdk1.7.0_17\bin;c:\Program Files\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\;C:\Program Files\Microsoft SQL Server\110\DTS\Binn\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\;C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\PrivateAssemblies\;C:\Program Files\Java\jdk1.8.0\bin;C:\strawberry\c\bin;C:\strawberry\perl\site\bin;C:\strawberry\perl\bin;C:\Dwimperl\perl\bin;C:\Dwimperl\perl\site\bin;C:\Dwimperl\c\bin;C:\Program Files\Rational\common;;C:\Users\W7\Desktop\eclipse-web\eclipse;;.
Feb 01, 2015 11:24:28 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Feb 01, 2015 11:24:28 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Feb 01, 2015 11:24:28 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1466 ms
Feb 01, 2015 11:24:28 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Feb 01, 2015 11:24:28 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.57
Feb 01, 2015 11:24:29 AM org.apache.catalina.util.SessionIdGenerator createSecureRandom
INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [142] milliseconds.
Feb 01, 2015 11:24:29 AM org.apache.catalina.core.ContainerBase startInternal
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/LoginExample]]
at java.util.concurrent.FutureTask.report(Unknown Source)
at java.util.concurrent.FutureTask.get(Unknown Source)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:816)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/LoginExample]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
... 6 more
Caused by: java.lang.IllegalArgumentException: Invalid <url-pattern> Login in servlet mapping
at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3300)
at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3275)
at org.apache.catalina.deploy.WebXml.configureContext(WebXml.java:1438)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1357)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:889)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:386)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5380)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 6 more
Feb 01, 2015 11:24:29 AM org.apache.catalina.core.ContainerBase startInternal
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
at java.util.concurrent.FutureTask.report(Unknown Source)
at java.util.concurrent.FutureTask.get(Unknown Source)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:739)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.startup.Catalina.start(Catalina.java:689)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:321)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:816)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 6 more
Feb 01, 2015 11:24:29 AM org.apache.catalina.startup.Catalina start
SEVERE: The required Server component failed to start so Tomcat is unable to start.
org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.startup.Catalina.start(Catalina.java:689)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:321)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:739)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 7 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 9 more
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 11 more
Feb 01, 2015 11:24:29 AM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["http-bio-8080"]
Feb 01, 2015 11:24:29 AM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["ajp-bio-8009"]
Feb 01, 2015 11:24:29 AM org.apache.catalina.core.StandardService stopInternal
INFO: Stopping service Catalina
Feb 01, 2015 11:24:29 AM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["http-bio-8080"]
Feb 01, 2015 11:24:29 AM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["ajp-bio-8009"]
I will be really greatful if someone could help me solve my problem, so that I can move on.Thanks! 如果有人可以帮助我解决我的问题，让我继续前进，我将非常感激。谢谢！
3 个解决方案
解决方案1
2 2015-02-01 09:35:08
That is the root cause of the error: 这是错误的根本原因：
Caused by: java.lang.IllegalArgumentException: Invalid <url-pattern> Login in servlet mapping
Think you have to change: 认为您必须更改：
<servlet-mapping>
<servlet-name>Login</servlet-name>
<url-pattern>Login</url-pattern>
</servlet-mapping>
To: 至：
<servlet-mapping>
<servlet-name>Login</servlet-name>
<url-pattern>/Login</url-pattern>
</servlet-mapping>
解决方案2
1 已采纳 2015-02-01 09:36:59
Since you have added @WebServlet("/Login") ,
so no need to map url pattern again in web.xml
remove this tags from web.xml and run again or remove @WebServlet("/Login") and keep tags in web.xml and change action in form as action="/Login".
<servlet>
<servlet-name>Login</servlet-name>
<servlet-class>servlets.Login</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Login</servlet-name>
<url-pattern>Login</url-pattern>
</servlet-mapping>
解决方案3
0 2015-02-02 17:13:29
You are using web.xml version 3.0 http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" **version="3.0"**> 您正在使用web.xml 3.0版http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd“ id =” WebApp_ID“ **版本=” 3.0“ **>
Its not mandatory to make ur servlets entry in web.xml. 在web.xml中输入您的servlet是非强制性的。 Just try to remove it from web.xml. 只需尝试将其从web.xml中删除。 and put this line before class defination starts. 并将此行放在课程定义之前。 @WebServlet("/Login") @WebServlet（“ /登录”）
now try to hit url: 现在尝试点击网址：
localhost:port on which ur server is running (Default is 8080)/project_name/Login 运行您的服务器的localhost：port（默认为8080）/ project_name / Login
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