Shiro無權限，不進行unauthorizedUr無權限l跳轉，而是沒有權限的錯誤

（zlt尼瑪銀行），原創文章，轉發請註明出處：http://write.blog.csdn.net/postedit

源碼ShiroFilterFactoryBean.java

private void applyUnauthorizedUrlIfNecessary(Filter filter) {  
        String unauthorizedUrl = getUnauthorizedUrl();  
        if (StringUtils.hasText(unauthorizedUrl) && (filter instanceof AuthorizationFilter)) {  
            AuthorizationFilter authzFilter = (AuthorizationFilter) filter;  
            //only apply the unauthorizedUrl if they haven't explicitly configured one already:  
            String existingUnauthorizedUrl = authzFilter.getUnauthorizedUrl();  
            if (existingUnauthorizedUrl == null) {  
                authzFilter.setUnauthorizedUrl(unauthorizedUrl);  
            }  
        }  
    }  

定義的filter必須滿足filter instanceof AuthorizationFilter，只有perms，roles，ssl，rest，port纔是屬於AuthorizationFilter，而anon，authcBasic，auchc，user是AuthenticationFilter，所以unauthorizedUrl設置後頁面不跳轉
解決方法要麼就使用perms，roles，ssl，rest，port，要不請看如下解決辦法

<!-- 沒有權限時跳轉的url -->

<property name="unauthorizedUrl" value="/Manage/Unauth/unauth.do"></property>

解決辦法

自定義異常類Reslover 捕捉異常，如果異常爲無權限異常就手動就是轉發到無權頁面。

/**
 * 
* 類名稱：MyExceptionResolver.java
* 類描述： 
* @author lsq
* 作者單位： 
* 聯繫方式：QQ237442461
* @version 1.0
 */
public class MyExceptionResolver implements HandlerExceptionResolver{

	public ModelAndView resolveException(HttpServletRequest request,
			HttpServletResponse response, Object handler, Exception ex) {
		// TODO Auto-generated method stub
		System.out.println("==============異常開始=============");
		//如果是shiro無權操作，因爲shiro 在操作auno等一部分不進行轉發至無權限url
		if(ex instanceof UnauthorizedException){
			ModelAndView mv = new ModelAndView("manage/unauth/index");
			return mv;
		}
		ex.printStackTrace();
		System.out.println("==============異常結束=============");
		ModelAndView mv = new ModelAndView("error");
		mv.addObject("exception", ex.toString().replaceAll("\n", "<br/>"));
		return mv;
	}

}

Spring-mvc 配置自定義異常

<!-- 自定義異常處理-->
    <bean id="exceptionResolver" class="com.ljy.manage.resolver.MyExceptionResolver"></bean>