传递value值

action------>页面

Map mp = (Map) ActionContext.getContext().get("request");     //在action的方法中包装信息
mp.put(key,value);

${requestScope.key}                   //页面获取值

 

页面--------->action

(前提是:在action类有private Teacher teacher 且 set/get(..))

 <form action="/school2/teacher/teacherAction_getInfo" method="post">
         teacher_id:<input type="text" name="teacher.id"><br>
         teacher_name:<input type="text" name="teacher.name"><br>
         teacher_age:<input type="text" name="teacher.age"><br><br>
         <button>提交</button><br>
    </form>

<input type="hidden" name="SliceInfo">

Request.Params["SliceInfo"]       //后台取值

 

 

 

页面1------>页面2

(前提是:在action类有private Teacher teacher 且 set/get(..))

 <input type="hidden" name="pageNum"  value="1">    //页面1的表单中,action指向action类方法,方法再指向页面2

${requestScope.pageNum1}                   //页面2获取值