jsp 500 内部错误 请问这56 行到底有什么错误
descriptionTheserverencounteredaninternalerror()thatpreventeditfromfulfillingthisrequ...
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /ch04/index.jsp at line 56
53: <!-- 主版块 -->
54: <%
55: List listMainBoard = (List)mapBoard.get(0);
56: for( int i=0; i<listMainBoard.size(); i++ ) {
57: Board mainBoard = ((Board)listMainBoard.get(i)); // 循环取得主版块
58: %>
59: <TR class="tr3"> 展开
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /ch04/index.jsp at line 56
53: <!-- 主版块 -->
54: <%
55: List listMainBoard = (List)mapBoard.get(0);
56: for( int i=0; i<listMainBoard.size(); i++ ) {
57: Board mainBoard = ((Board)listMainBoard.get(i)); // 循环取得主版块
58: %>
59: <TR class="tr3"> 展开
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