Spring Security教程---- 自定义AccessDeniedHandler
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在Spring默认的AccessDeniedHandler中只有对页面请求的处理,而没有对Ajax的处理。而在项目开发是Ajax又是我们要常用的技术,所以我们可以通过自定义AccessDeniedHandler来处理Ajax请求。我们在Spring默认的AccessDeniedHandlerImpl上稍作修改就可以了。
- public class DefaultAccessDeniedHandler implements AccessDeniedHandler {
- /* (non-Javadoc)
- * @see org.springframework.security.web.access.AccessDeniedHandler#handle(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, org.springframework.security.access.AccessDeniedException)
- */
- private String errorPage;
- //~ Methods ========================================================================================================
- public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException accessDeniedException)
- throws IOException, ServletException {
- boolean isAjax = ControllerTools.isAjaxRequest(request);
- if(isAjax){
- Message msg = MessageManager.exception(accessDeniedException);
- ControllerTools.print(response, msg);
- }else if (!response.isCommitted()) {
- if (errorPage != null) {
- // Put exception into request scope (perhaps of use to a view)
- request.setAttribute(WebAttributes.ACCESS_DENIED_403, accessDeniedException);
- // Set the 403 status code.
- response.setStatus(HttpServletResponse.SC_FORBIDDEN);
- // forward to error page.
- RequestDispatcher dispatcher = request.getRequestDispatcher(errorPage);
- dispatcher.forward(request, response);
- } else {
- response.sendError(HttpServletResponse.SC_FORBIDDEN, accessDeniedException.getMessage());
- }
- }
- }
- /**
- * The error page to use. Must begin with a "/" and is interpreted relative to the current context root.
- *
- * @param errorPage the dispatcher path to display
- *
- * @throws IllegalArgumentException if the argument doesn‘t comply with the above limitations
- */
- public void setErrorPage(String errorPage) {
- if ((errorPage != null) && !errorPage.startsWith("/")) {
- throw new IllegalArgumentException("errorPage must begin with ‘/‘");
- }
- this.errorPage = errorPage;
- }
- }
最后在配置文件中配置下
- <sec:http auto-config="true" access-decision-manager-ref="accessDecisionManager">
- <sec:access-denied-handler ref="accessDeniedHandler"/>
- <sec:session-management invalid-session-url="/login.jsp" />
- <sec:intercept-url pattern="/app.jsp" access="AUTH_LOGIN"/>
- <sec:intercept-url pattern="/**" access="AUTH_GG_FBGBGG"/>
- <sec:form-login login-page="/login.jsp" authentication-failure-url="/login.jsp"
- default-target-url="/index.jsp"/>
- </sec:http>
- <!-- 自定义权限不足处理程序 -->
- <bean id="accessDeniedHandler" class="com.zrhis.system.security.RequestAccessDeniedHandler">
- <property name="errorPage" value="/WEB-INF/error/403.jsp"></property>
- </bean>
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