Shiro在Web.xml中shiroFilter的Mapping配置错误

org.apache.shiro.UnavailableSecurityManagerException: No SecurityManager accessible to the calling code, either bound to the org.apache.shiro.util.ThreadContext or as a vm static singleton.  This is an invalid application configuration.

at org.apache.shiro.SecurityUtils.getSecurityManager(SecurityUtils.java:123)

at org.apache.shiro.subject.Subject$Builder.<init>(Subject.java:627)

at org.apache.shiro.SecurityUtils.getSubject(SecurityUtils.java:56)

at com.feinno.module.security.web.JsonLoginController.login(JsonLoginController.java:41)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

出现上面的问题，是我在修改springMVC整体的URL后缀（原来是MVC）为html的时候出现，我忘记修改shiroFilter的入口mapping的配置为.html造成的错误。

<!-- Shiro Security filter -->
<filter>
<filter-name>shiroFilter</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>shiroFilter</filter-name>
<url-pattern>*.jsp</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>
<filter-mapping>
<filter-name>shiroFilter</filter-name>
<url-pattern>*.mvc</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>

</filter-mapping>

修改为

<filter-mapping>
<filter-name>shiroFilter</filter-name>
<url-pattern>*.html</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>