列了J2EE中的一些xml配置，當然并不全。
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配置servlet映射關系：
<web-app>
??
......
?? <servlet>
??? ???
<servlet-name>ServletName</servlet-name>
??? ???
<servlet-class>com.jj.ServletClass</servlet-class>
??? ???
<!-- servlet初始化參數 -->
??? ??? <init-param>
??? ??? ???
<param-name>parameterName</param-name>
??? ??? ???
<param-value>parameterValue</param-value>
??? ???
</init-param>
??? </servlet>
???
<servlet-mapping>
??? ???
<servlet-name>ServletName</servlet-name>
??? ???
<url-pattern>/*.do</url-pattern>
???
</servlet-mapping>
???
......
</web-app>
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配置監聽器：
<web-app>
???
........
??? <listener>
??? ???
<listener-class>com.jj.MyServletContextListener</listener-class>
???
</listener>
???
........
</web-app>
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設置session超時：
<web-app>
???
........
??? <session-config>
??? ??? <!-- 以分鐘為單位 -->
???
??? <session-timeout>15</session-timeout>
???
</session-config>
???
........
</web-app>
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配置應用上下文參數：
<web-app>
???
........
???? <context-param>
??? ???
<param-name>parameterName</param-name>
??? ???
<param-value>parameterValue</param-value>
???
</context-param>
???
........
</web-app>
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禁用scriptlet：
<web-app>
???
........
??? <jsp-config>
??? ??? <jsp-property-group>
???
??? ??? <url-pattern>*.jsp</url-pattern>
??? ??? ???
<scripting-invalid>true</scripting-invalid>
??? ???
</jsp-property-group>
??? </jsp-config>
???
........
</web-app>
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忽略EL表達式語言：
<web-app>
???
........
??? <jsp-config>
??? ??? <jsp-property-group>
???
??? ??? <url-pattern>*.jsp</url-pattern>
??? ??? ???
<el-ignored>true</el-ignored>
??? ???
</jsp-property-group>
??? </jsp-config>
???
........
</web-app>
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EL函數配置：
TLD(標記庫描述文件)：
<taglib>
???
<uri>DiceFunctions</uri>
???
<function>
??? ??? <name>rollIt</name>
??? ??? <function-class>foo.DiceRoller</function-class>
??? ???
<function-signature>
??? ??? ??? int
rollDice()
??? ??? </function-signature>
???
</function>
</taglib>
有函數的類：
package foo;
public
class DiceRoller{
??? public
static int rollerDice(){
??? ?? return
(int)((Math.random()*6)+1);
??? }
}
JSP中調用
<%@ tiglib
prefix="mine" uri="DiceFunctions"
%>
<html><body>
${mine:rollIt()}
</body></html>
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定制錯誤頁面：
根據異常類型定制錯誤頁面：
<web-app>
???
......
??? <error-page>
??? ???
<exception-type>java.lang.Throwable</exception-type>
??? ???
<location>/error.jsp</location>
??? </error-page>
???
......
</web-app>
根據HTTP狀態碼定制錯誤頁面：
<web-app>
???
......
??? <error-page>
??? ???
<error-code>404</error-code>
??? ???
<location>/error.jsp</location>
??? </error-page>
???
......
</web-app>
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定制標記：
tld：
<taglib>
???
......
??? <tag>
??? ??? <name>loop</name>
??? ???
<tag-class>com.pandajj.tag.LoopTag</tag-class>
??? ??? <!--
四個值可選：empty,scriptless,tagdependent,JSP -->
??? ???
<body-content>JSP</body-content>
??? ??? <attribute>
???
??? ??? <name>times</name>
??? ??? ???
<required>true</required>
??? ??? ???
<rtexpralue>true</rtexpralue>
??? ??? </attribute>
???
</tag>
???
......
</taglib>
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定制歡迎頁面：
<web-app>
???
......
??? <welcome-file-list>
??? ???
<welcome-file>hello.html</welcome-file>
???
</welcome-file-list>
???
......
</web-app>
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EJB相關和MIME映射：
<web-app>
???
......
??? <!-- 本地Bean的引用 -->
??? <ejb-local-ref>
??? ???
<ejb-ref-name>ejb/customer</ejb-ref-name>
??? ???
<ejb-ref-type>Entity</ejb-ref-type>
??? ???
<local-home>com.jj.CustomerHome</local-home>
??? ???
<local>com.jj.Customer</local>
??? </ejb-local-ref>
???
??? <!-- 遠程Bean的引用 -->
??? <ejb-ref>
??? ???
<ejb-ref-name>ejb/LocalCustomer</ejb-ref-name>
??? ???
<ejb-ref-type>Entity</ejb-ref-type>
??? ???
<home>com.jj.CustomerHome</home>
??? ???
<remote>com.jj.Customer</remote>
??? </ejb-ref>
???
??? <!-- 聲明應用的JNDI環境項 -->
??? <env-entry>
??? ???
<env-entry-name>rates/discountRate</env-entry-name>
??? ???
<env-entry-type>java.lang.Integer</env-entry-type>
??? ???
<env-entry-value>10</env-entry-value>
???
</env-entry>
???
??? <!-- 配置擴展名和MIME類型之間的映射 -->
???
<mime-mapping>
??? ??? <extension>mpg</extension>
???
??? <mime-type>video/mpeg</mime-type>
???
</mime-mapping>
???
......
</web-app>
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過濾器映射：
<web-app>
???
......
??? <filter>
??? ???
<filter-name>FilterName</filter-name>
??? ???
<filter-class>com.jj.FilterClass</filter-class>
??? ???
<init-param>
??? ??? ???
<param-name>parameterName</param-name>
??? ??? ???
<param-value>parameterValue</param-value>
??? ???
</init-param>
??? </filter>
???
??? <!--
聲明相應URL模式的過濾器映射 -->
??? <filter-mapping>
??? ???
<filter-name>FilterName</filter-name>
??? ???
<url-pattern>*.do</url-pattern>
???
</filter-mapping>
???
??? <!-- 聲明對應servlet名的過濾器映射 -->
???
<filter-mapping>
??? ???
<filter-name>FilterName</filter-name>
??? ???
<servlet-name>ServletName</servlet-name>
???
</filter-mapping>
???
......
</web-app>
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授權：
<web-app>
???
......
??? <security-role>
??? ??? <!--
對應Tomcat的tomcat-users.xml中設置的角色名 -->
??? ???
<role-name>admin</role-name>
???
</security-role>
??? <login-config>
??? ??? <!-- 四種方式可選
-->
??? ??? <auth-method>BASIC</auth-method>
???
</login-config>
??? <security-constraint>
??? ???
<web-resource-collection>
??? ??? ??? <web-resource-name>Web
Security</web-resource-name>
??? ??? ???
<url-pattern>/index.jsp</url-pattern>
??? ??? ???
<http-method>GET</http-method>
??? ???
</web-resource-collection>
??? ??? <auth-constraint>
??? ???
??? <role-name>admin</role-name>
??? ???
</auth-constraint>
??? ??? <user-data-constraint>
??? ??? ???
<!-- 數據在傳輸過程中不被別人看到 -->
??? ??? ???
<transport-guarantee>CONFIDENTIAL</transport-guarantee>
??? ???
</user-data-constraint>
??? </security-constraint>
???
......
</web-app>
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四種認證類型：
BASIC：HTTP規范，Base64
<web-app>
???
......
??? <login-config>
??? ???
<auth-method>BASIC</auth-method>
???
</login-config>
???
......
</web-app>
DIGEST:HTTP規范，數據完整性強一些，但不是SSL
<web-app>
???
......
??? <login-config>
??? ???
<auth-method>DIGEST</auth-method>
???
</login-config>
???
......
</web-app>
CLIENT-CERT：J2EE規范，數據完整性很強，公共鑰匙（PKC）
<web-app>
???
......
??? <login-config>
??? ???
<auth-method>CLIENT-CERT</auth-method>
???
</login-config>
???
......
</web-app>
FORM：J2EE規范，數據完整性非常弱，沒有加密，允許有定制的登陸界面。
<web-app>
???
......
??? <login-config>
??? ???
<auth-method>FORM</auth-method>
??? ???
<form-login-config>
??? ??? ???
<form-login-page>/login.jsp</form-login-page>
??? ??? ???
<form-error-page>/error.jsp</form-error-page>
??? ???
</form-login-config>
??? </login-config>
???
......
</web-app>
登陸頁面表單的action，用戶名，密碼要用統一的名字：
<form
action="j_security_check">
??? <input type="text"
name="j_username" />
??? <input type="password"
name="j_password" />
??? <input type="submit"
value="enter" />
</form>
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