在jsp中使用Scriptlet
[英]Working of Scriptlets in jsp
問題描述
我正在努力維護在JSP中使用scriptlet的舊項目（我知道這不是一個好習慣但不能幫助它）。 JSP頁面包含多個scriptlet（<%%>） - 1.這些scriptlet是在bodyonload之前還是在DOM加載之前處理的2.是否scriptlet的執行順序是從上到下。 3.腳本加載之前是否運行scriptlet
提前致謝 ！
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ page language="java" contentType="text/html; charset=euc-kr"
pageEncoding="euc-kr" %>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=euc-kr">
<title></title>
<style type="text/css">
</style>
<%
String ctxPath = request.getContextPath();
//get goods_name, cus_name from DB
String goods_name = "»ç°ú 5kg";
String cus_name = "È«±æµ¿";
String ord_num = request.getParameter("ord_num");
String carrier_code = request.getParameter("carrier_code");
String carrier_codeOri = request.getParameter("carrier_codeOri");
String prodClass = request.getParameter("prodClass");
String linenumber = request.getParameter("linenumber") == null
|| "".equals(request.getParameter("linenumber"))
? "0" : request.getParameter("linenumber");
String orddate = request.getParameter("orddate");
String ordStatus = request.getParameter("ordStatus");
String OrderTypeItem = request.getParameter("OrderTypeItem");
String venderId = request.getParameter("venderId");
String callcenter = request.getParameter("callcenter")== null ? "" : request.getParameter("callcenter");
String Invoice_Num = request.getParameter("invoice_num")== null ? "" : request.getParameter("invoice_num");
String InvociesNum = Invoice_Num;
String agent = request.getParameter("agent")== null ? "" : request.getParameter("agent");
String strB2BI_FLAG = "";
//change hanjin furniture express to hanjin express
if("HF".equals(agent)){
agent = "HJ";
}
%>
<script language="javascript">
var tid = "";
function onStart() {
var InvociesNum = '<%= InvociesNum%>';
if (InvociesNum != ' ') {
tid=setTimeout(init,0);
} else {
if(tid != undefined && tid != ""){
clearTimeout(tid);
}
alert("Åùè»ç ¿î¼ÛÀå Á¤º¸°¡ ¾ø¾î¼ ¹è¼ÛÇöȲÀ» Á¦°øÇÒ ¼ö ¾ø½À´Ï´Ù.\n\nÀá½ÃÈÄ ´Ù½Ã ½ÃµµÇØ ÁֽʽÿÀ.");
self.close();
}
}
</script>
<%
String pageUrl = ""; // connection page
String scriptStr = ""; // call add on script function
// # if 1
if(InvociesNum != null && !InvociesNum.equals("")) { // if has invoice number
// # if 2
if( "HJ".equals(agent)) {
pageUrl = ctxPath+"/jsp/jseig_viewGoods.jsp";
} else if ("DH".equals(agent) || "DZ".equals(agent) || "CV".equals(agentd)) {
pageUrl = ctxPath+"/jsp/jseig_viewGoodsT.jsp";
// hyundai, CJHTH , CJGLS , logen
} else if("HD".equals(agent) || "HT".equals(agent) || "CJ".equals(agent) || "KG".equals(agent)) {
pageUrl = ctxPath+"/jsp/jseig_viewGoodsTra.jsp";
// KGB express, yellow cap, dongbu, post office ...
} else if( "KL".equals(agent) || "AJ".equals(agent) || "KT".equals(agent) || "KR".equals(agent)
|| "EP".equals(agent) || "ER".equals(agent) || "YC".equals(agent) || "TR".equals(agent)
|| "SG".equals(agent) || "FA".equals(agent) || "ND".equals(agent) || "IN".equals(agent)
|| "DS".equals(agent) || "CI".equals(agent) || "IY".equals(agent) || "KD".equals(agent) ) {
pageUrl = ctxPath+"/jsp/jseig_viewGoodsTrackingPHSC2.jsp";
} else if("DM".equals(agent)) { // dongyang magic
pageUrl = "http://www.tymg.co.kr/scripts/wgate/zs84a/!?VBKD-BSTKD_M="+ ord_num+";
scriptStr ="window.resizeTo(626,580);";
}else if("WW".equals(agent)) { //wizwid
pageUrl ="http://www.wizwid.com/CSW/handler/wizwid/kr/PopupDeliveryStatus-Start?JID=012861&JOrderID="+ord_num;
scriptStr = "window.resizeTo(650,640);";
} else {
if("3100".equals(carrier_codeOri) && ("A01".equals(prodClass) || "A03".equals(prodClass) || "A05".equals(prodClass) || "A07".equals(prodClass) || "A11".equals(prodClass) || "A25".equals(prodClass))) {
scriptStr ="window.resizeTo(626,580);";
scriptStr += "document.location.replace('"+ctxPath+"/jsp/jseig_viewInstallGoodsInfo.jsp?returnOrdNum="+ord_num+"')";
} else {
scriptStr ="document.location.replace('"+ctxPath+"/jsp/viewMyBuy_popup4.jsp')";
}
} // # if 2 END
} else { // have not invoice number
if ("DM".equals(agent)){ //dongyang magic
pageUrl ="http://www.tymg.co.kr/scripts/wgate/zs84a/!?VBKD-BSTKD_M="+ ord_num +"&ITSID=500784&ITSPW=4725";
}else{
if("3100".equals(carrier_codeOri) && ("A01".equals(prodClass) || "A03".equals(prodClass) || "A05".equals(prodClass) || "A07".equals(prodClass) || "A11".equals(prodClass) || "A25".equals(prodClass))) {
scriptStr = "document.location.replace('"+ctxPath+"/jsp/jseig_viewInstallGoodsInfo.jsp?returnOrdNum="+ord_num+"')";
} else {
scriptStr = "document.location.replace('"+ctxPath+"/jsp/viewMyBuy_popup4.jsp')";
}
} // end if from DM
} // # if 1 END
%>
<script language="javascript">
function init(){
<% if( !"GT".equals(agent) ) {
out.print(scriptStr);
if(!"".equals(pageUrl) && pageUrl.length()>0) { out.print("goPage('"+ pageUrl +"');"); }
} else {
out.print("window.open("+pageUrl+");");
} %>
}
function goPage(url){
document.invoiceForm.action = url;
document.invoiceForm.submit();
}
</script>
</head>
<body onload="onStart()">
<form name="invoiceForm" method="post">
<input type="hidden" name="invoiceNum" value="<%= InvociesNum %>">
<input type="hidden" name="invoice_num" value="<%= InvociesNum %>">
<input type="hidden" name="ord_num" value="<%= ord_num %>">
<input type="hidden" name="goods_name" value="<%= goods_name %>">
<input type="hidden" name="cus_name" value="<%= cus_name %>">
<input type="hidden" name="agent" value="<%= agent %>">
<input type="hidden" name="reqFlag" value="Y">
<input type="hidden" name="ordNum" value="<%= ord_num %>">
<input type="hidden" name="lineNum" value="<%= linenumber %>">
<%
session.setAttribute("callcenter", callcenter);
%>
</form>
<div style="height:600" align="center" valign="center">ó¸®ÁßÀÔ´Ï´Ù. Àá½Ã¸¸ ±â´Ù·Á fgfg.</div>
</body>
</html>
1 個解決方案
解決方案1
2 2014-04-21 18:18:24
在瀏覽器發生任何事情之前很久就處理了scriplet。 它們是服務器端功能，一旦內容到達瀏覽器，就不會留下任何痕跡（好吧，沒有明確的跟蹤）。 執行順序從上到下，但scriptlet中的Java代碼可以包含控制流指令。
JSP和scriptlet
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