<login-config><auth-method>BASIC</auth-method></login-config>

[b]web实现basic与FORM验证 [/b]
在web应用中,要经常对用户的身份进行验证的,但其实TOMCAT下配合SERVLET的话,也可以实现一些简单的验证,以往
可能大家都会忽略之,现再简单总结学习之。

1、BASIC验证机制
这有点象WINDOWS集成验证机制,就是验证时弹出一个窗口,要你输入用户名和密码。做法如下
首先建立在webapps下建立目录member,下面放一个需要假设要权限才能查看的页面test.html,
然后在tomcat的\conf目录下找到tomcat-users.xml文件,在其中增加
<user username="test" password="test" roles="member"/>
这里我们定义了角色member

然后再在web.xml里,如下定义
<web-app>
<security-constraint>
<web-resource-collection>
<web-resource-name>
Member Area
</web-resource-name>
<description>
Only registered members can access this area.
</description>
<url-pattern>/member/*</url-pattern>
<http-method>GET</http-method>
<http-method>POST</http-method>
</web-resource-collection>
<auth-constraint>
<role-name>member</role-name>
</auth-constraint>
</security-constraint>
<login-config>
<auth-method>BASIC</auth-method>
</login-config>
<security-role>
<role-name>member</role-name>
</security-role>
</web-app>

这里用<login-config>
<auth-method>BASIC</auth-method>
</login-config>
指出采用basic验证方式,并指出了对于访问/member/*下的文件时,都需要获得 member角色的授权。

2、form表单验证
这里首先搞一个要输入用户名和密码的页面a.html,再搞一个当出错时显示的页面error.html,注意用户名和密码的文本框的设计中,
要规定name='j_username' name='j_password',,并要设定<form action='j_security_check' method='POST'>

然后在tomcat-users.html中设定用户帐号member(同上),web.xml设定如下
<web-app>
<security-constraint>
<web-resource-collection>
<web-resource-name>
Member Area
</web-resource-name>
<description>
Only registered members can access this area.
</description>
<url-pattern>/member/*</url-pattern>
<http-method>GET</http-method>
<http-method>POST</http-method>
</web-resource-collection>
<auth-constraint>
<role-name>member</role-name>
</auth-constraint>
</security-constraint>
<login-config>
<auth-method>FORM</auth-method>
<form-login-config>
<form-login-page>/login/a.html
</form-login-page>
<form-error-page>/login/error.html
</form-error-page>
</form-login-config>
</login-config>
<security-role>
<role-name>member</role-name>
</security-role>
</web-app>
最后设定web.xml
<?xml version="1.0" encoding="UTF-8"?> <!--<web-app xmlns="http://java.sun.com/xml/ns/j2ee"--> <!-- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"--> <!-- xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"--> <!-- version="2.4">--> <web-app xmlns="https://jakarta.ee/xml/ns/jakartaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/web-app_5.xsd" version="5.0"> <display-name>howie2</display-name> <filter> <filter-name>hmvc</filter-name> <filter-class>com.howie.hmvc.DispatcherFilter</filter-class> </filter> <filter-mapping> <filter-name>hmvc</filter-name> <url-pattern>*.jsp</url-pattern> </filter-mapping> <filter-mapping> <filter-name>hmvc</filter-name> <url-pattern>*.html</url-pattern> </filter-mapping> <filter-mapping> <filter-name>hmvc</filter-name> <url-pattern>*.jhtml</url-pattern> </filter-mapping> <filter-mapping> <filter-name>hmvc</filter-name> <url-pattern>*.aj</url-pattern> </filter-mapping> <filter-mapping> <filter-name>hmvc</filter-name> <url-pattern>*.ar</url-pattern> </filter-mapping> <jsp-config> <taglib> <taglib-uri>asy</taglib-uri> <taglib-location>/WEB-INF/anshuyun.tld</taglib-location> </taglib> </jsp-config> <error-page> <error-code>404</error-code> <location>/error/404.jsp</location> </error-page> <error-page> <error-code>500</error-code> <location>/error/500.jsp</location> </error-page> <session-config> <session-timeout>20</session-timeout> <!-- <cookie-config> <secure>true</secure> </cookie-config> --> </session-config> <security-constraint> <web-resource-collection> <url-pattern>/*</url-pattern> <http-method>PUT</http-method> <http-method>DELETE</http-method> <http-method>HEAD</http-method> <http-method>OPTIONS</http-method> <http-method>TRACE</http-method> </web-resource-collection> <au
最新发布
03-20
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