<!-- session 校驗(yàn)單個(gè)用戶是否多次登錄 -->
<bean id="kickoutSessionFilter"  class="com.sojson.core.shiro.filter.KickoutSessionFilter"> 
  <property name="kickoutUrl" value="/u/login.shtml?kickout"/> 
</bean> 
<!-- 靜態(tài)注入 jedisShiroSessionRepository-->
<bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
  <property name="staticMethod" value="com.sojson.core.shiro.filter.KickoutSessionFilter.setShiroSessionRepository"/>
  <property name="arguments" ref="jedisShiroSessionRepository"/>
</bean>

<bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
 <property name="securityManager" ref="securityManager" />
 <property name="loginUrl" value="/u/login.shtml" />
 <!-- TODO 待提取 -->
<property name="successUrl" value="/" />
<property name="unauthorizedUrl" value="/?login" />
  <property name="filterChainDefinitions" value="#{shiroManager.loadFilterChainDefinitions()}"/>  
  <property name="filters">
    <util:map>
      <entry key="login" value-ref="login"></entry>
      <entry key="role" value-ref="role"></entry>
      <entry key="simple" value-ref="simple"></entry>
      <entry key="permission" value-ref="permission"></entry>
      <entry key="kickout" value-ref="kickoutSessionFilter"></entry>
    </util:map>
  </property>
</bean>

package com.sojson.core.shiro.filter;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Serializable;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import net.sf.json.JSONObject;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.web.filter.AccessControlFilter;
import org.apache.shiro.web.util.WebUtils;
import com.sojson.common.utils.LoggerUtils;
import com.sojson.core.shiro.cache.VCache;
import com.sojson.core.shiro.session.ShiroSessionRepository;
import com.sojson.core.shiro.token.manager.TokenManager;
/**
 * 
 * 開發(fā)公司：SOJSON在線工具 <p>
 * 版權(quán)所有：© www.sojson.com<p>
 * 博客地址：http://www.sojson.com/blog/ <p>
 * <p>
 * 
 * 相同帳號(hào)登錄控制
 * 
 * <p>
 * 
 * 區(qū)分　責(zé)任人　日期　　　　說明<br/>
 * 創(chuàng)建　周柏成　2016年6月2日 　<br/>
 *
 * @author zhou-baicheng
 * @email so@sojson.com
 * @version 1.0,2016年6月2日 <br/>
 * 
 */
@SuppressWarnings({"unchecked","static-access"})
public class KickoutSessionFilter extends AccessControlFilter {
 //靜態(tài)注入
 static String kickoutUrl;
 //在線用戶
 final static String ONLINE_USER = KickoutSessionFilter.class.getCanonicalName()+ "_online_user";
 //踢出狀態(tài)，true標(biāo)示踢出
 final static String KICKOUT_STATUS = KickoutSessionFilter.class.getCanonicalName()+ "_kickout_status";
 static VCache cache;
 //session獲取
 static ShiroSessionRepository shiroSessionRepository;
 @Override
 protected boolean isAccessAllowed(ServletRequest request,
  ServletResponse response, Object mappedValue) throws Exception {
 HttpServletRequest httpRequest = ((HttpServletRequest)request);
 String url = httpRequest.getRequestURI();
 Subject subject = getSubject(request, response);
 //如果是相關(guān)目錄 or 如果沒有登錄 就直接return true
 if(url.startsWith("/open/") || (!subject.isAuthenticated() && !subject.isRemembered())){
  return Boolean.TRUE;
 }
 Session session = subject.getSession();
 Serializable sessionId = session.getId();
 /**
  * 判斷是否已經(jīng)踢出
  * 1.如果是Ajax 訪問，那么給予json返回值提示。
  * 2.如果是普通請(qǐng)求，直接跳轉(zhuǎn)到登錄頁
  */
 Boolean marker = (Boolean)session.getAttribute(KICKOUT_STATUS);
 if (null != marker && marker ) {
  Map<String, String> resultMap = new HashMap<String, String>();
  //判斷是不是Ajax請(qǐng)求
  if (ShiroFilterUtils.isAjax(request) ) {
  LoggerUtils.debug(getClass(), "當(dāng)前用戶已經(jīng)在其他地方登錄，并且是Ajax請(qǐng)求！");
  resultMap.put("user_status", "300");
  resultMap.put("message", "您已經(jīng)在其他地方登錄，請(qǐng)重新登錄！");
  out(response, resultMap);
  }
  return Boolean.FALSE;
 }
 //從緩存獲取用戶-Session信息 <UserId,SessionId>
 LinkedHashMap<Long, Serializable> infoMap = cache.get(ONLINE_USER, LinkedHashMap.class);
 //如果不存在，創(chuàng)建一個(gè)新的
 infoMap = null == infoMap ? new LinkedHashMap<Long, Serializable>() : infoMap;
 //獲取tokenId
 Long userId = TokenManager.getUserId();
 //如果已經(jīng)包含當(dāng)前Session，并且是同一個(gè)用戶，跳過。
 if(infoMap.containsKey(userId) && infoMap.containsValue(sessionId)){
  //更新存儲(chǔ)到緩存1個(gè)小時(shí)（這個(gè)時(shí)間最好和session的有效期一致或者大于session的有效期）
  cache.setex(ONLINE_USER, infoMap, 3600);
  return Boolean.TRUE;
 }
 //如果用戶相同，Session不相同，那么就要處理了
 /**
  * 如果用戶Id相同,Session不相同
  * 1.獲取到原來的session，并且標(biāo)記為踢出。
  * 2.繼續(xù)走
  */
 if(infoMap.containsKey(userId) && !infoMap.containsValue(sessionId)){
  Serializable oldSessionId = infoMap.get(userId);
  Session oldSession = shiroSessionRepository.getSession(oldSessionId);
  if(null != oldSession){
  //標(biāo)記session已經(jīng)踢出
  oldSession.setAttribute(KICKOUT_STATUS, Boolean.TRUE);
  shiroSessionRepository.saveSession(oldSession);//更新session
  LoggerUtils.fmtDebug(getClass(), "kickout old session success,oldId[%s]",oldSessionId);
  }else{
  shiroSessionRepository.deleteSession(oldSessionId);
  infoMap.remove(userId);
  //存儲(chǔ)到緩存1個(gè)小時(shí)（這個(gè)時(shí)間最好和session的有效期一致或者大于session的有效期）
  cache.setex(ONLINE_USER, infoMap, 3600);
  }
  return Boolean.TRUE;
 }
 if(!infoMap.containsKey(userId) && !infoMap.containsValue(sessionId)){
  infoMap.put(userId, sessionId);
  //存儲(chǔ)到緩存1個(gè)小時(shí)（這個(gè)時(shí)間最好和session的有效期一致或者大于session的有效期）
  cache.setex(ONLINE_USER, infoMap, 3600);
 }
 return Boolean.TRUE;
 }
 @Override
 protected boolean onAccessDenied(ServletRequest request,
  ServletResponse response) throws Exception {
 //先退出
 Subject subject = getSubject(request, response);
 subject.logout();
 WebUtils.getSavedRequest(request);
 //再重定向
 WebUtils.issueRedirect(request, response,kickoutUrl);
 return false;
 }
 private void out(ServletResponse hresponse, Map<String, String> resultMap)
  throws IOException {
 try {
  hresponse.setCharacterEncoding("UTF-8");
  PrintWriter out = hresponse.getWriter();
  out.println(JSONObject.fromObject(resultMap).toString());
  out.flush();
  out.close();
 } catch (Exception e) {
  LoggerUtils.error(getClass(), "KickoutSessionFilter.class 輸出JSON異常，可以忽略。");
 }
 }
 public static void setShiroSessionRepository(
  ShiroSessionRepository shiroSessionRepository) {
 KickoutSessionFilter.shiroSessionRepository = shiroSessionRepository;
 }
 public static String getKickoutUrl() {
 return kickoutUrl;
 }
 public static void setKickoutUrl(String kickoutUrl) {
 KickoutSessionFilter.kickoutUrl = kickoutUrl;
 }
}

try{
 var _href = window.location.href+"";
 if(_href && _href.indexOf('?kickout')!=-1){
 layer.msg('您已經(jīng)被踢出，請(qǐng)重新登錄！');
 }
}catch(e){
}