首頁猿問麻煩幫我看下這是哪里出錯(cuò)了，跟教程...

麻煩幫我看下這是哪里出錯(cuò)了，跟教程一模一樣啊

Java

qq_Excalibur_0 2016-06-14 10:25:01

HTTP Status 500 - An exception occurred processing JSP page /details.jsp at line 21type Exception reportmessage An exception occurred processing JSP page /details.jsp at line 21description The server encountered an internal error that prevented it from fulfilling this request.exception org.apache.jasper.JasperException:?An?exception?occurred?processing?JSP?page?/details.jsp?at?line?21 18:???????<tr> 19:????????<% 20:???????????ItemsDAO?itemDao=new?ItemsDAO(); 21:???????????Items?item?=itemDao.getItemsById(Integer.parseInt(request.getParameter("id"))); 22:???????????if(item!=null){ 23:?????????%>? 24:

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4 回答

Qlvver1_0

TA貢獻(xiàn)1條經(jīng)驗(yàn) 獲得超0個(gè)贊

我也出現(xiàn)了這個(gè)錯(cuò)誤。請(qǐng)問你解決了嗎

反對(duì) 回復(fù) 2018-08-01

wwpbjing

TA貢獻(xiàn)20條經(jīng)驗(yàn) 獲得超5個(gè)贊

<%
?????//?看一下request.getParameter("id")取到值了嗎
?????ItemsDAO?itemDao=new?ItemsDAO();
?????String?id?=?request.getParameter("id");
?????if(null?!=?id)?{
??????Items?item?=itemDao.getItemsById(Integer.parseInt(id));
?????}
%>

反對(duì) 回復(fù) 2016-06-15