当我项目启动后，去访问登录页面就会直接报这个错误，登录成功或者失败也会报同样的错误。并且登录的页面也炸掉了，jquery失效了，报 $ is not defined的错误
拜托大神帮忙看看是什么原因，很急很急，拜托

报错信息：

org.apache.shiro.authc.UnknownAccountException: Realm [com.rn.Filter.UserRealm@55c2fb78] was unable to find account data for the submitted AuthenticationToken [org.apache.shiro.authc.UsernamePasswordToken - null, rememberMe=false].
	at org.apache.shiro.authc.pam.ModularRealmAuthenticator.doSingleRealmAuthentication(ModularRealmAuthenticator.java:184)
	at org.apache.shiro.authc.pam.ModularRealmAuthenticator.doAuthenticate(ModularRealmAuthenticator.java:267)
	at org.apache.shiro.authc.AbstractAuthenticator.authenticate(AbstractAuthenticator.java:198)
	at org.apache.shiro.mgt.AuthenticatingSecurityManager.authenticate(AuthenticatingSecurityManager.java:106)
	at org.apache.shiro.mgt.DefaultSecurityManager.login(DefaultSecurityManager.java:270)
	at org.apache.shiro.subject.support.DelegatingSubject.login(DelegatingSubject.java:256)
	at com.rn.service.impl.UserServiceImpl.doLogin(UserServiceImpl.java:57)
	at com.rn.service.impl.UserServiceImpl$$FastClassBySpringCGLIB$$30adad5a.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:700)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:633)
	at com.rn.service.impl.UserServiceImpl$$EnhancerBySpringCGLIB$$90515f43.doLogin(<generated>)
	at com.rn.controller.ManagerController.loginback(ManagerController.java:48)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:743)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:672)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:82)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:919)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:851)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:844)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
	at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
	at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
	at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
	at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
	at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:745)

UserRealm.java

public class UserRealm extends AuthorizingRealm {

	@Autowired
	private UserService userSer;

	/**
	 * 每次验证权限执行
	 */
	@Override
	protected AuthorizationInfo doGetAuthorizationInfo(
			PrincipalCollection principal) {
		
		System.out.println("权限验证");
		Subject subject = SecurityUtils.getSubject();
		Session session = subject.getSession();
		User user = (User) session.getAttribute(Constants.SESSION_USER);
		List<String> roleIds = userSer.getUserRoleIds(user.getUser_Code());
		if (roleIds != null && roleIds.size() > 0) {
			SimpleAuthorizationInfo info= new SimpleAuthorizationInfo();
			for (String roleId : roleIds) {
				info.addRole(roleId);
			}
			return info;
		}
		return null;
	}

	/**
	 * 每次登陆验证
	 */
	@Override
	protected AuthenticationInfo doGetAuthenticationInfo(
			AuthenticationToken authenticationToken)
			throws AuthenticationException {
		String user_Name = (String) authenticationToken.getPrincipal();
		User user = userSer.getpassword(user_Name);
		if (user != null) {
			return new SimpleAuthenticationInfo(user_Name, user.getPassword(),
					null, getName());
		}
		
		return null;
		
	}

}

UserServiceImpl.java

@Override
	public User doLogin(String user_Name, String password) {
		Subject subject = SecurityUtils.getSubject();
		UsernamePasswordToken token = new UsernamePasswordToken(user_Name,
				password);
		try {
			subject.login(token);
			Session session=subject.getSession();
			User user=getpassword(user_Name);
			session.setAttribute(Constants.SESSION_USER,user);
			return user;
		} catch (AuthenticationException e) {
			e.printStackTrace();
			return null;
		}
		
	}

Controller

@RequestMapping("login")
	public String loginback(
			@RequestParam(value = "user_Name", required = false) String user_Name,
			@RequestParam(value = "password", required = false) String password,
			HttpServletRequest request) {
		
		
		User user = userService.doLogin(user_Name, password);
		if (user == null) {
			request.setAttribute("error", "用户名或密码错误");
			return "back/login";
		}
		return "back/index";
	}