shiro报错No SecurityManager accessible to the calling code, either bound to the org.apache.shiro

问题

今天在调试代码的时候，报了这么一个错，排查半天，终于找到解决方法，具体报错如下图

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

16:29:03.059 [http-nio-80-exec-25] ERROR o.a.c.c.C.[.[.[.[dispatcherServlet] - [log,175] - Servlet.service() for servlet [dispatcherServlet] threw exception
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:626)at org.apache.shiro.SecurityUtils.getSubject(SecurityUtils.java:56)at org.apache.shiro.web.servlet.ShiroHttpServletRequest.getSubject(ShiroHttpServletRequest.java:89)at org.apache.shiro.web.servlet.ShiroHttpServletRequest.getSession(ShiroHttpServletRequest.java:154)at org.springframework.web.util.WebUtils.getSessionId(WebUtils.java:359)at org.springframework.web.servlet.FrameworkServlet.publishRequestHandledEvent(FrameworkServlet.java:1145)at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1023)at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)at javax.servlet.http.HttpServlet.service(HttpServlet.java:655)at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)at javax.servlet.http.HttpServlet.service(HttpServlet.java:764)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:711)at org.apache.catalina.core.ApplicationDispatcher.doDispatch(ApplicationDispatcher.java:632)at org.apache.catalina.core.ApplicationDispatcher.dispatch(ApplicationDispatcher.java:600)at org.apache.catalina.core.AsyncContextImpl$AsyncRunnable.run(AsyncContextImpl.java:587)at org.apache.catalina.core.AsyncContextImpl.doInternalDispatch(AsyncContextImpl.java:353)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:194)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)at org.apache.catalina.connector.CoyoteAdapter.asyncDispatch(CoyoteAdapter.java:250)at org.apache.coyote.AbstractProcessor.dispatch(AbstractProcessor.java:241)at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:59)at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890)at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743)at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)at java.lang.Thread.run(Thread.java:748)
16:29:03.060 [http-nio-80-exec-25] ERROR o.a.c.c.C.[.[.[.[dispatcherServlet] - [log,175] - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [java.lang.RuntimeException: Error during asynchronous dispatch] with root cause
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:626)at org.apache.shiro.SecurityUtils.getSubject(SecurityUtils.java:56)at org.apache.shiro.web.servlet.ShiroHttpServletRequest.getSubject(ShiroHttpServletRequest.java:89)at org.apache.shiro.web.servlet.ShiroHttpServletRequest.getSession(ShiroHttpServletRequest.java:154)at org.springframework.web.util.WebUtils.getSessionId(WebUtils.java:359)at org.springframework.web.servlet.FrameworkServlet.publishRequestHandledEvent(FrameworkServlet.java:1145)at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1023)at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)at javax.servlet.http.HttpServlet.service(HttpServlet.java:655)at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)at javax.servlet.http.HttpServlet.service(HttpServlet.java:764)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:711)at org.apache.catalina.core.ApplicationDispatcher.doDispatch(ApplicationDispatcher.java:632)at org.apache.catalina.core.ApplicationDispatcher.dispatch(ApplicationDispatcher.java:600)at org.apache.catalina.core.AsyncContextImpl$AsyncRunnable.run(AsyncContextImpl.java:587)at org.apache.catalina.core.AsyncContextImpl.doInternalDispatch(AsyncContextImpl.java:353)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:194)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)at org.apache.catalina.connector.CoyoteAdapter.asyncDispatch(CoyoteAdapter.java:250)at org.apache.coyote.AbstractProcessor.dispatch(AbstractProcessor.java:241)at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:59)at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890)at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743)at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)at java.lang.Thread.run(Thread.java:748)

问题解析

是因为Apache Shiro无法找到SecurityManager。在Apache Shiro中，SecurityManager是中心安全控制器，所有安全相关的操作都会与它交互。这个错误可能的原因是没有正确地设置或者初始化Shiro的SecurityManager。

解决方案

在调用接口处添加以下代码（初始化一下）

        DefaultSecurityManager securityManager = new DefaultSecurityManager();SecurityUtils.setSecurityManager(securityManager);

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