Servlet如何可以向JSP传值 如何把servlet的数据传递给JSP页面

Servlet如何可以向JSP传值？

,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    HttpSession session = request.getSession(),    String name1 = request.getParameter("name"),    List arrlist1 = new ArrayList(),    arrlist1=Arrylistdb.Arr(),    request.setAttribute("userList", arrlist1)//将整个结果集放入request，没必要放到session，耗资源,    //for(int i=0i,,<% Userbean user = (Userbean)userList.get(i) %>,<%=user.getId() %>,<%=user.getUname() %>,,,<% } %>,,

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,,/********queryById.do所对应的Servlet**********/,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    String userId = request.getParameter("userId"),    List userlist = Arrylistdb.queryById(userId),    request.setAttribute("userlist", userlist)//将整个结果集放入request,    response.sendRedirect("userinfo.jsp"),} ,, 0,,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    HttpSession session = request.getSession(),    String name1 = request.getParameter("name"),    List arrlist1 = new ArrayList(),    arrlist1=Arrylistdb.Arr(),    request.setAttribute("userList", arrlist1)//将整个结果集放入request，没必要放到session，耗资源,    //for(int i=0i,,<% Userbean user = (Userbean)userList.get(i) %>,<%=user.getId() %>,<%=user.getUname() %>,,,<% } %>,,

,    ,    ,

,,/********queryById.do所对应的Servlet**********/,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    String userId = request.getParameter("userId"),    List userlist = Arrylistdb.queryById(userId),    request.setAttribute("userlist", userlist)//将整个结果集放入request,    response.sendRedirect("userinfo.jsp"),} ,, 0,,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    HttpSession session = request.getSession(),    String name1 = request.getParameter("name"),    List arrlist1 = new ArrayList(),    arrlist1=Arrylistdb.Arr(),    request.setAttribute("userList", arrlist1)//将整个结果集放入request，没必要放到session，耗资源,    //for(int i=0i,,<% Userbean user = (Userbean)userList.get(i) %>,<%=user.getId() %>,<%=user.getUname() %>,,,<% } %>,,

,    ,    ,

,,/********queryById.do所对应的Servlet**********/,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    String userId = request.getParameter("userId"),    List userlist = Arrylistdb.queryById(userId),    request.setAttribute("userlist", userlist)//将整个结果集放入request,    response.sendRedirect("userinfo.jsp"),} ,, 0,,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    HttpSession session = request.getSession(),    String name1 = request.getParameter("name"),    List arrlist1 = new ArrayList(),    arrlist1=Arrylistdb.Arr(),    request.setAttribute("userList", arrlist1)//将整个结果集放入request，没必要放到session，耗资源,    //for(int i=0i,,<% Userbean user = (Userbean)userList.get(i) %>,<%=user.getId() %>,<%=user.getUname() %>,,,<% } %>,,

,    ,    ,

,,/********queryById.do所对应的Servlet**********/,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    String userId = request.getParameter("userId"),    List userlist = Arrylistdb.queryById(userId),    request.setAttribute("userlist", userlist)//将整个结果集放入request,    response.sendRedirect("userinfo.jsp"),} ,, 0,,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    HttpSession session = request.getSession(),    String name1 = request.getParameter("name"),    List arrlist1 = new ArrayList(),    arrlist1=Arrylistdb.Arr(),    request.setAttribute("userList", arrlist1)//将整个结果集放入request，没必要放到session，耗资源,    //for(int i=0i,,<% Userbean user = (Userbean)userList.get(i) %>,<%=user.getId() %>,<%=user.getUname() %>,,,<% } %>,,

,    ,    ,

,,/********queryById.do所对应的Servlet**********/,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    String userId = request.getParameter("userId"),    List userlist = Arrylistdb.queryById(userId),    request.setAttribute("userlist", userlist)//将整个结果集放入request,    response.sendRedirect("userinfo.jsp"),} ,, 0,,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    HttpSession session = request.getSession(),    String name1 = request.getParameter("name"),    List arrlist1 = new ArrayList(),    arrlist1=Arrylistdb.Arr(),    request.setAttribute("userList", arrlist1)//将整个结果集放入request，没必要放到session，耗资源,    //for(int i=0i,,<% Userbean user = (Userbean)userList.get(i) %>,<%=user.getId() %>,<%=user.getUname() %>,,,<% } %>,,

,    ,    ,

,,/********queryById.do所对应的Servlet**********/,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    String userId = request.getParameter("userId"),    List userlist = Arrylistdb.queryById(userId),    request.setAttribute("userlist", userlist)//将整个结果集放入request,    response.sendRedirect("userinfo.jsp"),} ,, 0,,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    HttpSession session = request.getSession(),    String name1 = request.getParameter("name"),    List arrlist1 = new ArrayList(),    arrlist1=Arrylistdb.Arr(),    request.setAttribute("userList", arrlist1)//将整个结果集放入request，没必要放到session，耗资源,    //for(int i=0i,,<% Userbean user = (Userbean)userList.get(i) %>,<%=user.getId() %>,<%=user.getUname() %>,,,<% } %>,,

,    ,    ,

,,/********queryById.do所对应的Servlet**********/,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    String userId = request.getParameter("userId"),    List userlist = Arrylistdb.queryById(userId),    request.setAttribute("userlist", userlist)//将整个结果集放入request,    response.sendRedirect("userinfo.jsp"),} ,, 0,,public void doPost(HttpServletRequest request, HttpServletResponse response),throws ServletException, IOException {,    HttpSession session = request.getSession(),    String name1 = request.getParameter("name"),    List arrlist1 = new ArrayList(),    arrlist1=Arrylistdb.Arr(),    request.setAttribute("userList", arrlist1)//将整个结果集放入request，没必要放到session，耗资源,    //for(int i=0i,,<% Userbean user = (Userbean)userList.get(i) %>,<%=user.

如何把servlet的数据传递给JSP页面

1、利用ServletContext这个web全局上下文来共享数据 servlet中getServletContext()可以获得一个ServletContext对象，利用这个对象的getAttribute()/setAttribute()方法可以在整个WEB应该里共享数据，可以实现servlet和jsp之间的数据互传

如何将servlet中的变量传入jsp中

可以用Request将结果放在attribute里,
Request.setAttribute("key","value")
然后在JSP中取出
getAttribute("key")

你也可以把处理的结构封装称类,然后在JSP中调用