学步园

解读webapps/jello/web.xml,以及用户登录的过程:<br /> 1.请求：http://localhost:8080<br /> 到ROOT/index.jsp<br /> index.jsp:<br /> <%response.sendRedirect("jello/portal/");%></p> <p>2.即index.jsp发送请求http://localhost:8080/jello/portal/<br /> 由于/jello/web.xml中：<br /> <security-constraint>(安全域)的url-pattern配置的是/*<br /> 即：所有匹配http://localhost:8080/jello/*的请求都要经过身份认证。<br /> 由于：<br /> <login-config><br /> <auth-method>FORM</auth-method><br /> <form-login-config><br /> <form-login-page>/login.jsp</form-login-page><br /> <form-error-page>/error.jsp</form-error-page><br /> </form-login-config><br /> </login-config><br /> 所以：从login.jsp登录。<br /> 经过DataSourceRealm的认证，才能转到请求：</p> <p>http://localhost:8080/jello/*</p> <p>如：http://localhost:8080/jello/portal<br /> 由于servlet得配置：<br /> <servlet-mapping><br /> <servlet-name>portal</servlet-name><br /> <url-pattern>/portal/*</url-pattern><br /> </servlet-mapping><br /> <servlet><br /> <servlet-name>portal</servlet-name><br /> <servlet-class>com.x4ee.soa.portal.impl.PortalServlet</servlet-class><br /> </servlet><br /> 所以请求最后发送到了：<br /> com.x4ee.soa.portal.impl.PortalServlet<br /> PortalServlet通过读取数据库Profile跳转到相应的页面。<br /> --------------------------------------------------------------------------------------------</p> <p>web.xml:<br /> <?xml version="1.0" encoding="UTF-8"?></p> <p><web-app xmlns="http://java.sun.com/xml/ns/j2ee"<br /> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"<br /> xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"<br /> version="2.4"></p> <p> <display-name>jello</display-name><br /> <icon><br /> <small-icon>/logo16x16.ico</small-icon><br /> <large-icon>/logo32x32.ico</large-icon><br /> </icon></p> <p> <listener><br /> <listener-class>com.x4ee.soa.portal.impl.PortalStartupListener</listener-class><br /> </listener></p> <p> <servlet><br /> <servlet-name>portal</servlet-name><br /> <servlet-class>com.x4ee.soa.portal.impl.PortalServlet</servlet-class><br /> </servlet></p> <p> <servlet><br /> <servlet-name>profle</servlet-name><br /> <servlet-class>com.x4ee.soa.portal.impl.ProfleServlet</servlet-class><br /> </servlet></p> <p> <servlet-mapping><br /> <servlet-name>portal</servlet-name><br /> <url-pattern>/portal/*</url-pattern><br /> </servlet-mapping></p> <p> <servlet-mapping><br /> <servlet-name>profle</servlet-name><br /> <url-pattern>/profile/*/*</url-pattern><br /> </servlet-mapping></p> <p> <security-constraint><br /> <web-resource-collection><br /> <web-resource-name>security</web-resource-name><br /> <url-pattern>/*</url-pattern><br /> </web-resource-collection><br /> <auth-constraint><br /> <role-name>*</role-name><br /> </auth-constraint><br /> </security-constraint></p> <p> <login-config><br /> <auth-method>FORM</auth-method><br /> <form-login-config><br /> <form-login-page>/login.jsp</form-login-page><br /> <form-error-page>/error.jsp</form-error-page><br /> </form-login-config><br /> </login-config></p> <p> <security-role><br /> <role-name>*</role-name><br /> </security-role></p> <p> <error-page><br /> <error-code>404</error-code><br /> <location>/login.jsp</location><br /> </error-page></p> <p></web-app></p> <p>********************************************************************************************