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Tomcatサーバー（V7.0.72）でJavaサーブレットを実行する際に問題が発生しました。 問題は、Tomcat Serverがすでに存在するファイルを扱うことですが、新しいWebアプリケーションを作成すると「ファイルが見つかりません」と表示されます。examples/HelloWorld作業するためTomcatサーバー上のJavaサーブレット（ファイルが見つかりませんエラー）
：
についてservlets/HelloWorldを働いていない：
ディレクトリ構造は次のとおりです。
ののtomcat
|
+-- webapps
|
+- servlets
|
+- WEB-INF
|
+- classes
| |
| +- HelloWorld.class
| |
| +- HelloWorld.java
|
+- web.xml
内容：HelloWorld.javaの
<?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_3_0.xsd"
version="3.0"
metadata-complete="true">
<description>
Servlet and JSP Examples.
</description>
<display-name>Servlet and JSP Examples</display-name>
<!-- Define example filters -->
<filter>
<filter-name>Timing filter</filter-name>
<filter-class>filters.ExampleFilter</filter-class>
<init-param>
<param-name>attribute</param-name>
<param-value>filters.ExampleFilter</param-value>
</init-param>
</filter>
<filter>
<filter-name>Request Dumper Filter</filter-name>
<filter-class>org.apache.catalina.filters.RequestDumperFilter</filter-class>
</filter>
<!-- Example filter to set character encoding on each request -->
<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>org.apache.catalina.filters.SetCharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>EUC_JP</param-value>
</init-param>
<init-param>
<param-name>ignore</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter>
<filter-name>Compression Filter</filter-name>
<filter-class>compressionFilters.CompressionFilter</filter-class>
<init-param>
<param-name>compressionThreshold</param-name>
<param-value>128</param-value>
</init-param>
<init-param>
<param-name>compressionBuffer</param-name>
<param-value>8192</param-value>
</init-param>
<init-param>
<param-name>compressionMimeTypes</param-name>
<param-value>text/html,text/plain,text/xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
</filter>
<!-- Define filter mappings for the timing filters -->
<!--
<filter-mapping>
<filter-name>Timing Filter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
-->
<!-- Example filter mapping to apply the "Set Character Encoding" filter
to *all* requests processed by this web application -->
<!--
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
-->
<!--
<filter-mapping>
<filter-name>Compression Filter</filter-name>
<url-pattern>/CompressionTest</url-pattern>
</filter-mapping>
-->
<!--
<filter-mapping>
<filter-name>Request Dumper Filter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
-->
<!-- Define example application events listeners -->
<listener>
<listener-class>listeners.ContextListener</listener-class>
</listener>
<listener>
<listener-class>listeners.SessionListener</listener-class>
</listener>
<!-- Define servlets that are included in the example application -->
<servlet>
<servlet-name>ServletToJsp</servlet-name>
<servlet-class>ServletToJsp</servlet-class>
</servlet>
<servlet>
<servlet-name>ChatServlet</servlet-name>
<servlet-class>chat.ChatServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>CompressionFilterTestServlet</servlet-name>
<servlet-class>compressionFilters.CompressionFilterTestServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>HelloWorld</servlet-name>
<servlet-class>HelloWorld</servlet-class>
</servlet>
<servlet>
<servlet-name>RequestInfoExample</servlet-name>
<servlet-class>RequestInfoExample</servlet-class>
</servlet>
<servlet>
<servlet-name>RequestHeaderExample</servlet-name>
<servlet-class>RequestHeaderExample</servlet-class>
</servlet>
<servlet>
<servlet-name>RequestParamExample</servlet-name>
<servlet-class>RequestParamExample</servlet-class>
</servlet>
<servlet>
<servlet-name>CookieExample</servlet-name>
<servlet-class>CookieExample</servlet-class>
</servlet>
<servlet>
<servlet-name>SessionExample</servlet-name>
<servlet-class>SessionExample</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ChatServlet</servlet-name>
<url-pattern>/servlets/chat/chat</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>CompressionFilterTestServlet</servlet-name>
<url-pattern>/CompressionTest</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>/HelloWorld</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>RequestInfoExample</servlet-name>
<url-pattern>/servlets/servlet/RequestInfoExample/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>RequestHeaderExample</servlet-name>
<url-pattern>/servlets/servlet/RequestHeaderExample</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>RequestParamExample</servlet-name>
<url-pattern>/servlets/servlet/RequestParamExample</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>CookieExample</servlet-name>
<url-pattern>/servlets/servlet/CookieExample</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>SessionExample</servlet-name>
<url-pattern>/servlets/servlet/SessionExample</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ServletToJsp</servlet-name>
<url-pattern>/servletToJsp</url-pattern>
</servlet-mapping>
<jsp-config>
<taglib>
<taglib-uri>
http://tomcat.apache.org/debug-taglib
</taglib-uri>
<taglib-location>
/WEB-INF/jsp/debug-taglib.tld
</taglib-location>
</taglib>
<taglib>
<taglib-uri>
http://tomcat.apache.org/example-taglib
</taglib-uri>
<taglib-location>
/WEB-INF/jsp/example-taglib.tld
</taglib-location>
</taglib>
<taglib>
<taglib-uri>
http://tomcat.apache.org/jsp2-example-taglib
</taglib-uri>
<taglib-location>
/WEB-INF/jsp2/jsp2-example-taglib.tld
</taglib-location>
</taglib>
<jsp-property-group>
<description>
Special property group for JSP Configuration JSP example.
</description>
<display-name>JSPConfiguration</display-name>
<url-pattern>/jsp/jsp2/misc/config.jsp</url-pattern>
<el-ignored>true</el-ignored>
<page-encoding>ISO-8859-1</page-encoding>
<scripting-invalid>true</scripting-invalid>
<include-prelude>/jsp/jsp2/misc/prelude.jspf</include-prelude>
<include-coda>/jsp/jsp2/misc/coda.jspf</include-coda>
</jsp-property-group>
</jsp-config>
<security-constraint>
<display-name>Example Security Constraint</display-name>
<web-resource-collection>
<web-resource-name>Protected Area</web-resource-name>
<!-- Define the context-relative URL(s) to be protected -->
<url-pattern>/jsp/security/protected/*</url-pattern>
<!-- If you list http methods, only those methods are protected -->
<http-method>DELETE</http-method>
<http-method>GET</http-method>
<http-method>POST</http-method>
<http-method>PUT</http-method>
</web-resource-collection>
<auth-constraint>
<!-- Anyone with one of the listed roles may access this area -->
<role-name>tomcat</role-name>
<role-name>role1</role-name>
</auth-constraint>
</security-constraint>
<!-- Default login configuration uses form-based authentication -->
<login-config>
<auth-method>FORM</auth-method>
<realm-name>Example Form-Based Authentication Area</realm-name>
<form-login-config>
<form-login-page>/jsp/security/protected/login.jsp</form-login-page>
<form-error-page>/jsp/security/protected/error.jsp</form-error-page>
</form-login-config>
</login-config>
<!-- Security roles referenced by this web application -->
<security-role>
<role-name>role1</role-name>
</security-role>
<security-role>
<role-name>tomcat</role-name>
</security-role>
<!-- Environment entry examples -->
<!--env-entry>
<env-entry-description>
The maximum number of tax exemptions allowed to be set.
</env-entry-description>
<env-entry-name>maxExemptions</env-entry-name>
<env-entry-type>java.lang.Integer</env-entry-type>
<env-entry-value>15</env-entry-value>
</env-entry-->
<env-entry>
<env-entry-name>minExemptions</env-entry-name>
<env-entry-type>java.lang.Integer</env-entry-type>
<env-entry-value>1</env-entry-value>
</env-entry>
<env-entry>
<env-entry-name>foo/name1</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>value1</env-entry-value>
</env-entry>
<env-entry>
<env-entry-name>foo/bar/name2</env-entry-name>
<env-entry-type>java.lang.Boolean</env-entry-type>
<env-entry-value>true</env-entry-value>
</env-entry>
<env-entry>
<env-entry-name>name3</env-entry-name>
<env-entry-type>java.lang.Integer</env-entry-type>
<env-entry-value>1</env-entry-value>
</env-entry>
<env-entry>
<env-entry-name>foo/name4</env-entry-name>
<env-entry-type>java.lang.Integer</env-entry-type>
<env-entry-value>10</env-entry-value>
</env-entry>
<!-- Async examples -->
<servlet>
<servlet-name>async0</servlet-name>
<servlet-class>async.Async0</servlet-class>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>async0</servlet-name>
<url-pattern>/async/async0</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>async1</servlet-name>
<servlet-class>async.Async1</servlet-class>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>async1</servlet-name>
<url-pattern>/async/async1</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>async2</servlet-name>
<servlet-class>async.Async2</servlet-class>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>async2</servlet-name>
<url-pattern>/async/async2</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>async3</servlet-name>
<servlet-class>async.Async3</servlet-class>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>async3</servlet-name>
<url-pattern>/async/async3</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>stock</servlet-name>
<servlet-class>async.AsyncStockServlet</servlet-class>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>stock</servlet-name>
<url-pattern>/async/stockticker</url-pattern>
</servlet-mapping>
<!-- WebSocket Examples using Deprecated Tomcat 7 API-->
<servlet>
<servlet-name>wsEchoStream</servlet-name>
<servlet-class>websocket.tc7.echo.EchoStream</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>wsEchoStream</servlet-name>
<url-pattern>/websocket/tc7/echoStream</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>wsEchoMessage</servlet-name>
<servlet-class>websocket.tc7.echo.EchoMessage</servlet-class>
<!-- Uncomment the following block to increase the default maximum
WebSocket buffer size from 2MB to 20MB which is required for the
Autobahn test suite to pass fully. -->
<!--
<init-param>
<param-name>byteBufferMaxSize</param-name>
<param-value>20971520</param-value>
</init-param>
<init-param>
<param-name>charBufferMaxSize</param-name>
<param-value>20971520</param-value>
</init-param>
-->
</servlet>
<servlet-mapping>
<servlet-name>wsEchoMessage</servlet-name>
<url-pattern>/websocket/tc7/echoMessage</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>wsChat</servlet-name>
<servlet-class>websocket.tc7.chat.ChatWebSocketServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>wsChat</servlet-name>
<url-pattern>/websocket/tc7/chat</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>wsSnake</servlet-name>
<servlet-class>websocket.tc7.snake.SnakeWebSocketServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>wsSnake</servlet-name>
<url-pattern>/websocket/tc7/snake</url-pattern>
</servlet-mapping>
<!-- Websocket examples -->
<listener>
<listener-class>websocket.drawboard.DrawboardContextListener</listener-class>
</listener>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.xhtml</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
内容：
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ResourceBundle;
public class HelloWorld extends HttpServlet {
private static final long serialVersionUID = 1L;
@Override
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
ResourceBundle rb =
ResourceBundle.getBundle("LocalStrings", request.getLocale());
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
String title = rb.getString("helloworld.title");
out.println("<title>" + title + "</title>");
out.println("</head>");
out.println("<body bgcolor=\"white\">");
// note that all links are created to be relative. this
// ensures that we can move the web application that this
// servlet belongs to to a different place in the url
// tree and not have any harmful side effects.
// XXX
// making these absolute till we work out the
// addition of a PathInfo issue
out.println("<a href=\"../helloworld.html\">");
out.println("<img src=\"../images/code.gif\" height=24 " +
"width=24 align=right border=0 alt=\"view code\"></a>");
out.println("<a href=\"../index.html\">");
out.println("<img src=\"../images/return.gif\" height=24 " +
"width=24 align=right border=0 alt=\"return\"></a>");
out.println("<h1>" + title + "</h1>");
out.println("</body>");
out.println("</html>");
}
}
の任意の提案を歓迎いたします。 ありがとうございます。
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