如何把servlet的参数传递给JSP servlet向JSP传参数的方法有多少种
如何把servlet的参数传递给JSP
servlet中传值到JSP有几种方式：
1. 使用request对象的setAttribute
2. 使用request.getSession().setAttribute()
3. 使用request.getSession().getServletContext().setAttribute()
servlet向JSP传参数的方法有多少种
1.servlet中session.setAttribute("name",Object)
JSP页面中用session.getAttribute("name")获得Object
2.
JSP页面中用request.getParameter("name")得到属性值
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 javascript中获取servlet参数的方法：,<% Userbean user = (Userbean)userList.get(i) %>, ,<% } %>,,,,/********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<%=user.getId() %> ,<%=user.getUname() %> ,, ,<% Userbean user = (Userbean)userList.get(i) %>, ,<% } %>,,,,/********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<%=user.getId() %> ,<%=user.getUname() %> ,, ,<% Userbean user = (Userbean)userList.get(i) %>, ,<% } %>,,,,/********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<%=user.getId() %> ,<%=user.getUname() %> ,, ,<% Userbean user = (Userbean)userList.get(i) %>, ,<% } %>,,,,/********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<%=user.getId() %> ,<%=user.getUname() %> ,, ,<% Userbean user = (Userbean)userList.get(i) %>, ,<% } %>,,,,/********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<%=user.getId() %> ,<%=user.getUname() %> ,, ,<% Userbean user = (Userbean)userList.get(i) %>, ,<% } %>,,,,/********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<%=user.getId() %> ,<%=user.getUname() %> ,, ,<% Userbean user = (Userbean)userList.get(i) %>, ,<% } %>,,,,/********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<%=user.getId() %> ,<%=user.getUname() %> ,, ,<% Userbean user = (Userbean)userList.get(i) %>, <%=user. javascript的函数怎么调由servlet传给jsp的参数
第一种写法：
if(${method}=="add"){js代码段1}else{js代码段2}
第二种写法：
<%if(request.getAttribute("method")!= null&&request.getAttribute("method").equals("add")){%>
js代码段 <%}else{%>
js代码段 <%}%>最新文章
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