求教这个问题：This is class jsp04.Zj04_sj1_reply, using the POST method
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悬赏园豆：20
[已解决问题]
解决于 2015-11-24 19:23
由jsp页面跳转到servlet的时候，浏览器中出现了这行文字，求教原因（PS：servlet中已经重写了doGet和doPost方法）
servlet代码如下：
1 package jsp04; 2 3 import java.io.IOException; 4 import java.io.PrintWriter; 5 import java.text.SimpleDateFormat; 6 import java.util.Date; 7 import java.util.Map; 8 9 import javax.servlet.ServletException; 10 import javax.servlet.http.HttpServlet; 11 import javax.servlet.http.HttpServletRequest; 12 import javax.servlet.http.HttpServletResponse; 13 import javax.servlet.jsp.jstl.sql.Result; 14 15 public class Zj04_sj1_reply extends HttpServlet { 16 17 public void doGet(HttpServletRequest request, HttpServletResponse response) 18 throws ServletException, IOException { 19 this.doPost(request, response); 20 } 21 22 public void doPost(HttpServletRequest request, HttpServletResponse response) 23 throws ServletException, IOException { 24 25 response.setContentType("text/html;charset=gbk"); 26 PrintWriter out = response.getWriter(); 27 28 //获取用户、时间 29 String userName=request.getSession().getAttribute("userName").toString(); 30 Date now=new Date(); 31 SimpleDateFormat sdf=new SimpleDateFormat("yyy-MM-dd HH:mm:ss"); 32 String commentTime=sdf.format(now); 33 34 //获取页面数据 35 String theme=request.getParameter("theme"); 36 String reply=request.getParameter("reply"); 37 38 //更新comment表 39 String sql="insert into comment values(?,?,?)"; 40 Object params[]={userName,commentTime,reply}; 41 DBHelp.runSelectSql2(sql, params); 42 43 //更新news表 44 //先查询作者和创建日期 45 String sql2="select * from news where title=?"; 46 Object params2[]={theme}; 47 Result result=DBHelp.runSelectSql(sql2, params2); 48 Map row=result.getRows()[0]; 49 int answerNumber=Integer.parseInt(row.get("answerNumber").toString()); 50 int visitNumber=Integer.parseInt(row.get("visitNumber").toString()); 51 //更改 52 answerNumber=answerNumber+1; 53 visitNumber=visitNumber+1; 54 String sql3="update news set answerNumber=?" + 55 " and visitNumber=? and finalCommentator=? and finalCommentTime=? " + 56 "where title=?"; 57 Object params3[]={answerNumber,visitNumber,userName,commentTime,theme}; 58 DBHelp.runSelectSql2(sql3, params3); 59 60 //更新forum表 61 //从session中获取话题 62 String topic=request.getAttribute("topic").toString(); 63 String sql4="update forum set answerNumber=(1+(select answerNumber from forum where topic=?)) where topic=?"; 64 Object params4[]={topic,topic}; 65 DBHelp.runSelectSql2(sql4, params4); 66 67 //转发到Zj04_sj1_theme.jsp 68 request.getRequestDispatcher("jsp04/Zj04_sj1_theme.jsp"); 69 } 70 71 }
jsp代码如下：
1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> 2 <% 3 String path = request.getContextPath(); 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 5 %> 6 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 8 <html> 9 <head> 10 <base href="<%=basePath%>"> 11 12 <title>主题回复</title> 13 14 <meta http-equiv="pragma" content="no-cache"> 15 <meta http-equiv="cache-control" content="no-cache"> 16 <meta http-equiv="expires" content="0"> 17 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> 18 <meta http-equiv="description" content="This is my page"> 19 <!-- 20 <link rel="stylesheet" type="text/css" href="styles.css"> 21 --> 22 <style> 23 #main{ 24 width:768px; 25 height:500px; 26 border:1px dashed black; 27 background-color:#FFF3D9; 28 } 29 #top{ 30 31 text-align:center; 32 height:30px;; 33 border:1px dashed black; 34 margin:7px; 35 } 36 #content{ 37 height:400px; 38 border:1px dashed black; 39 margin:7px; 40 } 41 #c1{ 42 width:25%; 43 height:400px; 44 border:1px dashed black; 45 background-color:#FFF3D9; 46 float:left; 47 text-align:center; 48 } 49 #span{ 50 vertical-align:middle; 51 margin-top:150px; 52 } 53 #c2{ 54 width:72%; 55 height:400px; 56 border:1px dashed black; 57 background-color:white; 58 float:right; 59 } 60 #reply{ 61 width:100%; 62 height:400px; 63 } 64 #footer{ 65 height:35; 66 border:1px dashed black; 67 margin:7px; 68 } 69 #btn{ 70 float:right; 71 margin-right:10px; 72 margin-top:4px; 73 } 74 </style> 75 </head> 76 77 <body> 78 <form name="form5" method="post" action="Zj04_sj1_reply"> 79 <div id="main"> 80 <div id="top"><span name="theme" values="浙江首条高速铁路通车">浙江首条高速铁路通车</span> 主题回复</div> 81 <div id="content"> 82 <div id="c1"><div id="span" >回复内容</div></div> 83 <div id="c2"><textarea name="reply" id="reply" name="reply"></textarea></div> 84 </div> 85 <div id="footer"> 86 <div id="btn"> 87 <input type="submit" value="提交"/> 88 <input type="reset" value="重置"/> 89 </div> 90 </div> 91 </div> 92 </form> 93 </body> 94 </html>
最佳答案
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Restart server
收获园豆：20
其他回答(1)
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doPost前面要加上@Override，然后重启试试
