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如何用servlet跳轉(zhuǎn)到一個(gè)jsp萌新很多不懂，求大神詳解？

Html5 JavaScript

守著陽(yáng)光守著你 2016-07-26 11:01:08

就類(lèi)似與?reg.jsp->servlet->show.jsp后面兩個(gè)的過(guò)程是什么呢？在線等。多謝了

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漢娜之眼

TA貢獻(xiàn)42條經(jīng)驗(yàn) 獲得超27個(gè)贊

有很多種方式，最常見(jiàn)用頁(yè)面重定向request.getRequestDispatcher("/xxxxx.jsp").forward(request,
?? ??? ??? ??? ?response);//跳向評(píng)論頁(yè)面并發(fā)送參數(shù)

反對(duì) 回復(fù) 2016-07-26

守著陽(yáng)光守著你
請(qǐng)問(wèn)具體怎么寫(xiě)呢？

回復(fù) 2016-07-26
漢娜之眼
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String foodId = request.getParameter("foodcommentId");//獲取評(píng)論食物的id//這個(gè)地方要在前臺(tái)設(shè)置參數(shù) Food commentfood = dao.getFoods(foodId);//調(diào)用工具類(lèi)得到食物對(duì)象 //dao是操作數(shù)據(jù)庫(kù)對(duì)象，不用管 request.setAttribute("commentfood", commentfood);//設(shè)置發(fā)送參數(shù)和發(fā)送屬性 request.getRequestDispatcher("/food_comment.jsp").forward(request, response);//跳向評(píng)論頁(yè)面并發(fā)送參數(shù) } //這是我之前寫(xiě)的一個(gè)例子，主要就是設(shè)置參數(shù)和發(fā)送參數(shù)那一段

回復(fù) 2016-07-26
守著陽(yáng)光守著你
呃.....不太明白，剛接觸編程沒(méi)多久我的意思就是： public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String sno=request.getParameter("Id"); String sno1=request.getParameter("userid"); String sno2=request.getParameter("sex"); String sno3=request.getParameter("city"); String [] sno4=request.getParameterValues("aihao"); response.setContentType("text/html"); PrintWriter out = response.getWriter(); out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">"); out.println("<HTML>"); out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>"); out.println(" <BODY>"); out.print(sno + " "); out.print(sno1 + " "); out.print(sno2 + " "); out.print(sno3 + " "); for(String b:sno4){ out.print(b + " "); } out.print(this.getClass()); out.println(", using the POST method"); out.println(" </BODY>"); out.println("</HTML>"); out.flush(); out.close(); } 是不是加在這里面，加在什么位置，代碼的含義是什么？多謝啦

回復(fù) 2016-07-26