通过调用其中的方法可以获取到request和session，调用方式如下：
HttpServletRequest request = ContextHolderUtils.getRequest();
HttpSession session = ContextHolderUtils.getSession();
ContextHolderUtils，这个类的源码如下：
package org.jeecgframework.core.util; import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes; /**
* @ClassName: ContextHolderUtils
* @Description: TODO(上下文工具类) */
public class ContextHolderUtils {
/**
* SpringMvc下获取request
*
* @return
*/
public static HttpServletRequest getRequest() {
HttpServletRequest request = null;
if (RequestContextHolder.getRequestAttributes()!=null) {
request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
}
return request; } /**
* SpringMvc下获取session
*
* @return
*/
public static HttpSession getSession() {
HttpServletRequest request = getRequest();
String tempSessionId = request.getParameter("sessionId");
HttpSession session = request.getSession();
String sessionId = session.getId();
if(StringUtil.isNotEmpty(tempSessionId) && !tempSessionId.equals(sessionId)){
sessionId = tempSessionId;
if(sessionMap.containsKey(sessionId)){
session = sessionMap.get(sessionId);
}
}
if(!sessionMap.containsKey(sessionId)){
sessionMap.put(sessionId, session);
}
return session;
} private static final Map<String, HttpSession> sessionMap = new HashMap<String, HttpSession>(); public static HttpSession getSession(String sessionId){
HttpSession session = sessionMap.get(sessionId);
return session == null ? getSession() : session;
} public static void removeSession(String sessionId){
if(sessionMap.containsKey(sessionId)){
sessionMap.remove(sessionId);
}
} }