web.xml

ロード順番：

context-param -> listener -> filter -> servlet

基本

<web-app>

1.アイコン

<icon>

<small-icon>/images/app_small.gif</small-icon>

<large-icon>/images/app_large.gif</large-icon>

</icon>

2.名称

<display-name>Tomcat Example</display-name>

3.説明

<disciption>Tomcat Example servlets and JSP pages.</disciption>

4.初期パラメタ

<context-param>

<param-name>parameter</para-name>

<param-value>test</param-value>

<description>It is a parameter.</description>

</context-param>

5.フィルター

<filter-name>characterEncoding</filter-name>

<filter-class>com.test.EncodingFilter</filter-class>

<init-param>

<param-name>encoding</param-name>

<param-value>UTF-8</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>characterEncoding</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

6.リスナー

<listerner-class>listener.SessionListener</listener-class>

</listener>

7.Servlet

一般

<servlet-name>init</servlet-name>

<servlet-class>InitServlet</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>init</servlet-name>

<url-pattern>/start</url-pattern>

</servlet-mapping>

複雑

<servlet-name>init</servlet-name>

<servlet-class>InitServlet</servlet-class>

<jsp-file>/config.jsp</jsp-file>

<init-param>

<param-name>flg</param-name>

<param-value>true</param-value>

</init-param>

正の数/0：小さい数字からロード；負の数/未定：はじめてアクセス時ロード

<load-on-startup>0</load-on-startup>

<run-as>

<description>anonymous access</description>

<role-name>tomcat</role-name>

</run-as>

</servlet>

<servlet-mapping>

<servlet-name>init</servlet-name>

<url-pattern>/start</url-pattern>

</servlet-mapping>

8.セッションタイムアウト（単位：分）

<session-config>

<session-timeout>120</session-timeout>

</session-config>

9.MIME

<mime-mapping>

<mime-type>text/html</mime-type>

</mime-mapping>

10.ウェルカムページ

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

<welcome-file>index.html</welcome-file>

<welcome-file>index.htm</welcome-file>

</welcome-file-list>

11.エラーページ

方法１：エラーコードにより

<error-page>

<error-code>404</error-code>

<location>/notFound.jsp</location>

</error-page>

方法２：例外の種類により

<error-page>

<exception-type>java.lang.NullException</exception-type>

<location>/error.jsp</location>

</error-page>

12.TLD（タグライブラリ）

<taglib-uri>http://jakarta.apache.org/tomcat/debug-taglib</taglib-uri>

<taglib-location>/WEB-INF/jsp/debug-taglib.tld</taglib-location>

</taglib>

<jsp-config>

<taglib-uri>

http://jakarta.apache.org/tomcat/debug-taglib

</taglib-uri>

<taglib-location>/WEB-INF/pager-taglib.tld</taglib-location>

</taglib>

</jsp-config>

13.リソース

<resource-env-ref>

<resource-env-ref-name>jms/StockQueue</resource-env-ref-name>

</resource-env-ref>

14.リソース参照

<resource-ref>

<res-ref-name>mail/Session</res-ref-name>

<res-type>javax.mail.Session</res-type>

<res-auth>Container</res-auth>

</resource-ref>

<resource-ref>

<description>JNDI JDBC DataSource</description>

<res-ref-name>jdbc/sample_db</res-ref-name>

<res-type>javax.sql.DataSource</res-type>

<res-auth>Container</res-auth>

</resource-ref>

15.セキュリティ

<security-constraint>

<display-name>Example</display-name>

<web-resource-collection>

<web-resource-name>Protected Area</web-resource-name>

<url-pattern>/jsp/security/protected/*</url-pattern>

<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>

<role-name>tomcat</role-name>

<role-name>role1</role-name>

</auth-constraint>

</security-constraint>

16.ログイン

<login-config>

<auth-method>FORM</auth-method>

<realm-name>Authentiation 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>

17.セキュリティロール

<security-role>

<role-name>tomcat</role-name>

</security-role>

18.Web環境

<env-entry>

<env-entry-name>minExample</env-entry-name>

<env-entry-value>1</env-entry-value>

<env-entry-type>java.lang.Integer</env-entry-type>

</env-entry>

19.EJB

<ejb-ref>

<description>EJB reference</decription>

<ejb-ref-name>ejb/Account</ejb-ref-name>

<ejb-ref-type>Entity</ejb-ref-type>

<home>com.test.AccountHome</home>

<remote>com.test.Account</remote>

</ejb-ref>

20.ローカルEJB

<ejb-local-ref>

<description>Loacal EJB reference</decription>

<ejb-ref-name>ejb/Order</ejb-ref-name>

<ejb-ref-type>Session</ejb-ref-type>

<local-home>com.test.OrderHome</local-home>

<local>com.test.Order</local>

</ejb-local-ref>

</web-app>

応用

Struts 1.x

<servlet-name>action</servlet-name>

<servlet-class>

org.apache.struts.action.ActionServlet

</servlet-class>

<init-param>

<param-name>debug</param-name>

<param-value>2</param-value>

</init-param>

<init-param>

<param-name>config</param-name>

<param-value>/WEB-INF/struts-config.xml</param-value>

</init-param>

<load-on-startup>2</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>action</servlet-name>

<url-pattern>*.do</url-pattern>

</servlet-mapping>

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>

<taglib-uri>struts-bean</taglib-uri>

<taglib-location>/WEB-INF/tld/struts-bean.tld</taglib-location>

</taglib>

<taglib-uri>struts-html</taglib-uri>

<taglib-location>/WEB-INF/tld/struts-html.tld</taglib-location>

</taglib>

<taglib-uri>struts-nested</taglib-uri>

<taglib-location>/WEB-INF/tld/struts-nested.tld</taglib-location>

</taglib>

<taglib-uri>struts-logic</taglib-uri>

<taglib-location>/WEB-INF/tld/struts-logic.tld</taglib-location>

</taglib>

<taglib-uri>struts-tiles</taglib-uri>

<taglib-location>/WEB-INF/tld/struts-tiles.tld</taglib-location>

</taglib>

Struts 2.x

<filter-name>struts2</filter-name>

<filter-class>

org.apache.struts2.dispatcher.FilterDispatcher 古いバージョン

org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter 新

</filter-class>

</filter>

<filter-mapping>

<filter-name>struts2</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

JSF

<servlet-name>Faces Servlet</servlet-name>

<servlet-class>

javax.faces.webapp.FacesServelet

</servlet-class>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>Faces Servlet</servlet-name>

<url-pattern>*.jsf</url-pattern> *.xhtml, *.faces

</servlet-mapping>

context-param

javax.faces.CONFIG_FILES

javax.faces.DEFAULT_SUFFIX

javax.faces.FACELETS_BUFFER_SIZE

javax.faces.FACELETS_REFRESH_PERIOD

javax.faces.FACELETS_SKIP_COMMENTS

javax.faces.LIFECYCLE_ID

javax.faces.STATE_SAVEING_METHOD

javax.faces.PROJECT_STAGE Development,UnitTest,SystemTest,Production

javax.faces.DISABLE_FACELET_JSF_VIEWHANDLER

javax.faces.LIBRARIES

Spring

Servletとして

<servlet-name>springServlet</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param>

<param-name>ContextConfigLocation</param-name>

<param-value>/WEB-INF/classes/spring-servlet.xml</param-value>

</init-param>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>springServlet</servlet-name>

<url-pattern>/springServlet/*</url-pattern>

</servlet-mapping>

listenerとして

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>

/WEB-INF/applicationContext.xml, /WEB-INF/action-servlet.xml

</param-value>

<param-value>

classpath:spring/applicationContext*.xml

</param-value>

</context-param>

<listener-class>

org.springframework.web.context.ContextLoaderListener

</listener-class>

</listener>

<listener-class>

org.springframework.web.context.request.RequestContextListener

</listener-class>

</listener>

※classpathは/WEB-INF/classes

★初期化パラメータの設定

方法１．Servlet・Filter単位の初期化パラメータ（特定Servlet・Filterのみ使える）

<init-param>

<param-name>param1</param-name>

<param-value>aaa</param-value>

</init-param>

利用例

ServletConfig sc = getServletConfig();

String param1 = sc.getInitParameter("param1");

方法２．コンテキスト単位の初期化パラメータ（すべてServlet・Filter使える）

<context-param>

<param-name>globel1</param-name>

<param-value>bbb</param-value>

</context-param>

利用例

ServletContext scon = getServletConfig().getServletContext();

String globel1 = scon.getInitParameter("globel1");

方法３．AnnotationによるDI

<env-entry>

<env-entry-name>hello</env-entry-name>

<env-entry-type>java.lang.String</env-entry-type>

<env-entry-value>This is test.</env-entry-value>

</env-entry>

利用例

@Resource(name="hello")

private String hello;