Q&A
tomcatにeclipseでつくったwebアプリをデプロイしたいです。フォワードして白紙のページを表示するだけのプロジェクトのwarファイルを作成し、tomucatのアプリケーションマネージャーに配備しましたがアプリを開くと404エラーになります。
herokuでもデプロイしましたが、同じく404でした。
実現したいこと
とにかくデプロイしたい。
該当のソースコード
servlet
1 2package servlet; 3 4import java.io.IOException; 5 6import javax.servlet.RequestDispatcher; 7import javax.servlet.ServletException; 8import javax.servlet.annotation.WebServlet; 9import javax.servlet.http.HttpServlet; 10import javax.servlet.http.HttpServletRequest; 11import javax.servlet.http.HttpServletResponse; 12 13/** 14 * Servlet implementation class Servlet 15 */ 16@WebServlet("/Servlet") 17public class Servlet extends HttpServlet { 18 private static final long serialVersionUID = 1L; 19 20 /** 21 * @see HttpServlet#HttpServlet() 22 */ 23 public Servlet() { 24 super(); 25 // TODO Auto-generated constructor stub 26 } 27 28 /** 29 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) 30 */ 31 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 32 // TODO Auto-generated method stub 33 response.getWriter().append("Served at: ").append(request.getContextPath()); 34 35 RequestDispatcher dispatcher=request.getRequestDispatcher("/c/index.jsp"); 36 dispatcher.forward(request, response); 37 } 38 39 /** 40 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) 41 */ 42 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 43 // TODO Auto-generated method stub 44 doGet(request, response); 45 } 46 47} 48
index.jsp
1 2<%@ page language="java" contentType="text/html; charset=UTF-8" 3 pageEncoding="UTF-8"%> 4<!DOCTYPE html> 5<html> 6<head> 7<meta charset="UTF-8"> 8<title>Insert title here</title> 9</head> 10<body> 11 12</body> 13</html>
tomcatのserver.xml
1 2 3<?xml version="1.0" encoding="UTF-8"?> 4 5<!--Licensed to the Apache Software Foundation (ASF) under one or morecontributor license agreements. See the NOTICE file distributed withthis work for additional information regarding copyright ownership.The ASF licenses this file to You under the Apache License, Version 2.0(the "License"); you may not use this file except in compliance withthe License. You may obtain a copy of the License athttp://www.apache.org/licenses/LICENSE-2.0Unless required by applicable law or agreed to in writing, softwaredistributed under the License is distributed on an "AS IS" BASIS,WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.See the License for the specific language governing permissions andlimitations under the License. --> 6 7<!-- Note: A "Server" is not itself a "Container", so you may notdefine subcomponents such as "Valves" at this level.Documentation at /docs/config/server.html --> 8 9-<Server shutdown="SHUTDOWN" port="8005"> 10 11<Listener className="org.apache.catalina.startup.VersionLoggerListener"/> 12 13<!-- Security listener. Documentation at /docs/config/listeners.html<Listener className="org.apache.catalina.security.SecurityListener" /> --> 14 15 16<!-- APR library loader. Documentation at /docs/apr.html --> 17 18 19<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on"/> 20 21<!-- Prevent memory leaks due to use of particular java/javax APIs--> 22 23 24<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener"/> 25 26<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/> 27 28<Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener"/> 29 30<!-- Global JNDI resourcesDocumentation at /docs/jndi-resources-howto.html --> 31 32 33 34-<GlobalNamingResources> 35 36<!-- Editable user database that can also be used byUserDatabaseRealm to authenticate users --> 37 38 39<Resource pathname="conf/tomcat-users.xml" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" description="User database that can be updated and saved" type="org.apache.catalina.UserDatabase" auth="Container" name="UserDatabase"/> 40 41</GlobalNamingResources> 42 43<!-- A "Service" is a collection of one or more "Connectors" that sharea single "Container" Note: A "Service" is not itself a "Container",so you may not define subcomponents such as "Valves" at this level.Documentation at /docs/config/service.html --> 44 45 46 47-<Service name="Catalina"> 48 49<!--The connectors can use a shared executor, you can define one or more named thread pools--> 50 51 52<!--<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"maxThreads="150" minSpareThreads="4"/> --> 53 54 55<!-- A "Connector" represents an endpoint by which requests are receivedand responses are returned. Documentation at :Java HTTP Connector: /docs/config/http.htmlJava AJP Connector: /docs/config/ajp.htmlAPR (HTTP/AJP) Connector: /docs/apr.htmlDefine a non-SSL/TLS HTTP/1.1 Connector on port 8080 --> 56 57 58<Connector port="8080" redirectPort="8443" connectionTimeout="20000" protocol="HTTP/1.1"/> 59 60<!-- A "Connector" using the shared thread pool--> 61 62 63<!--<Connector executor="tomcatThreadPool"port="8080" protocol="HTTP/1.1"connectionTimeout="20000"redirectPort="8443" /> --> 64 65 66<!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443This connector uses the NIO implementation. The defaultSSLImplementation will depend on the presence of the APR/nativelibrary and the useOpenSSL attribute of the AprLifecycleListener.Either JSSE or OpenSSL style configuration may be used regardless ofthe SSLImplementation selected. JSSE style configuration is used below. --> 67 68 69<!--<Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"maxThreads="150" SSLEnabled="true"><SSLHostConfig><Certificate certificateKeystoreFile="conf/localhost-rsa.jks"type="RSA" /></SSLHostConfig></Connector> --> 70 71 72<!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443 with HTTP/2This connector uses the APR/native implementation which always usesOpenSSL for TLS.Either JSSE or OpenSSL style configuration may be used. OpenSSL styleconfiguration is used below. --> 73 74 75<!--<Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol"maxThreads="150" SSLEnabled="true" ><UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" /><SSLHostConfig><Certificate certificateKeyFile="conf/localhost-rsa-key.pem"certificateFile="conf/localhost-rsa-cert.pem"certificateChainFile="conf/localhost-rsa-chain.pem"type="RSA" /></SSLHostConfig></Connector> --> 76 77 78<!-- Define an AJP 1.3 Connector on port 8009 --> 79 80 81<!--<Connector protocol="AJP/1.3"address="::1"port="8009"redirectPort="8443" /> --> 82 83 84<!-- An Engine represents the entry point (within Catalina) that processesevery request. The Engine implementation for Tomcat stand aloneanalyzes the HTTP headers included with the request, and passes themon to the appropriate Host (virtual host).Documentation at /docs/config/engine.html --> 85 86 87<!-- You should set jvmRoute to support load-balancing via AJP ie :<Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1"> --> 88 89 90 91-<Engine name="Catalina" defaultHost="localhost"> 92 93<!--For clustering, please take a look at documentation at:/docs/cluster-howto.html (simple how to)/docs/config/cluster.html (reference documentation) --> 94 95 96<!--<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/> --> 97 98 99<!-- Use the LockOutRealm to prevent attempts to guess user passwordsvia a brute-force attack --> 100 101 102 103-<Realm className="org.apache.catalina.realm.LockOutRealm"> 104 105<!-- This Realm uses the UserDatabase configured in the global JNDIresources under the key "UserDatabase". Any editsthat are performed against this UserDatabase are immediatelyavailable for use by the Realm. --> 106 107 108<Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/> 109 110</Realm> 111 112 113-<Host name="localhost" autoDeploy="true" unpackWARs="true" appBase="webapps"> 114 115<!-- SingleSignOn valve, share authentication between web applicationsDocumentation at: /docs/config/valve.html --> 116 117 118<!--<Valve className="org.apache.catalina.authenticator.SingleSignOn" /> --> 119 120 121<!-- Access log processes all example.Documentation at: /docs/config/valve.htmlNote: The pattern used is equivalent to using pattern="common" --> 122 123 124<Valve className="org.apache.catalina.valves.AccessLogValve" pattern="%h %l %u %t "%r" %s %b" suffix=".txt" prefix="localhost_access_log" directory="logs"/> 125 126</Host> 127 128</Engine> 129 130</Service> 131 132</Server> 133 134
補足情報(FW/ツールのバージョンなど)
jvm 17.0.4+8
tomcat 9.0.59