oracle sql plus,先用sys登录失败,再用system登录仍失败;重新打开sql plus,直接用system登录成功
请求的cookie或parameter中带有jsessionid值,后台调用request.getSession()时,先从context找相应的session,没找到则create
struts2: <action name="" class=""><result name="" type="">/a.jsp</result></action>
result的type(跳转类型)默认为dispatcher
设置session超时,在tomcat/conf/web.xml中添加<session-config><session-timeout>30</session-timeout></session-config>
extjs combobox, getValue()是hidden value,getRawValue()是显示值