谁知道怎么在javascript里调用jsp参数啊？

Question

失恋之后，特别想回答问题！祝福所有的人好运！我不懂jsp，连一眼都没看过. 至少有一种方法可以解决,
<%
response.write "<script>
response.write "var str='"&request("name")&"';"
response.write "alert(str);"
response.write "</script>"
%>
这是asp语法，我不知道jsp是什么样，意思是一样的，这样可以把服务器端的参数传给客户端，虽然有点土，很实用。注意别忘了分号；

Answer 1

不太明白你的意思，需要调什么参数啊？
用method=post方式提交表单，参数不会显示在地址栏

Answer 2

<script language="javaScript">
window.location="delGcs.jsp?str="+dept_id+"&flag=<%=flag%>";
</script>

Answer 3

不能调用jsp的函数，只能获得jsp的变量值。
var name=<%=name%>;
这样就可以了。

Answer 4

<%jspValue=request.getAttribute("result") ;%>
<script>
stringValue=<%=jspValue%>
</script>

Answer 5

<script lanugage="javascript">
function linktopage()
{
  IDCARD=document.form1.test1.value;
  pageCount=document.from1.pageCount.value;
  sqlcount=document.form1.sqlcount.value;
  currPage=document.form1.currPage.value;
   document.form1.submit();
}
</script>
<script lanugage="javascript">
function form2()
{
  IDCARD=document.form2.test1.value;
  pageCount=document.form2.pageCount.value;
  sqlcount=document.form2.sqlcount.value;
  currPage=document.form2.currPage.value;
    currPage=currPage-1+2;
}
</script>
 <%if(currPage>1){%>
  <a href="javascript:form1()">上一页</a> 
  <%}%>
  <%if(currPage<pageCount){%>
  <a href="javascript:form2()"> 
  下一页</a> 
  <%}%>
为什么点下一页好用?上一页错误:不支持此方法呢?还有,为什么必须用 window.location="mytest.jsp?IDCARD="+IDCARD+"&page="+page+"&sqlcount="+sqlcount+"";可用?而document.form.submit();却查不到信息呢?
其实我用form的目的就是隐藏参数,如果用window.location的话就失去意义了!急!!!!

Answer 6

代码不全，没法帮你，把完整的贴上来吧，比如function form1()在哪里啊
form提交应该可以取到的呀

Answer 7

好的!<%@page contentType="text/html; charset=gb2312" language="java" import="java.sql.*"%>
<%@ page import="java.util.Date"%>
<%@ page language="java"%>
<script lanugage="javascript">
function form1()
{
  IDCARD=document.form1.test1.value;
  pageCount=document.from1.pageCount.value;
  sqlcount=document.form1.sqlcount.value;
  currPage=document.form1.currPage.value;
   document.form1.submit();
  // window.location="mytest.jsp?IDCARD="+IDCARD+"&page="+page+"&sqlcount="+sqlcount+"";
  //window.event.returnValue=false;
}
</script>
<script lanugage="javascript">
function form2()
{
  IDCARD=document.form2.test1.value;
  pageCount=document.form2.pageCount.value;
  sqlcount=document.form2.sqlcount.value;
  currPage=document.form2.currPage.value;
    currPage=currPage-1+2;

 // document.write(currPage);
   //document.form2.submit();
  window.location="mytest.jsp?IDCARD="+IDCARD+"&page="+currPage+"&sqlcount="+sqlcount+"";
  //window.event.returnValue=false;
}
</script><%
Class.forName("oracle.jdbc.driver.OracleDriver"); //设置数据库连接字符串  String sConn = "jdbc:oracle:thin:@clgl:1521:carweb"; //连接数据库 Connection   conn = java.sql.DriverManager.getConnection(sConn,"carmanager","car"); //创建SQL语句对象 Statement  sqlStmt = conn.createStatement(); 
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE); Statement stmtcount=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE); String Rsdriver__MMColParam = "-1";
if (request.getParameter("IDCARD") !=null) {Rsdriver__MMColParam = (String)request.getParameter("IDCARD");}
ResultSet rs=stmt.executeQuery("select * from driver where idcard like '"+Rsdriver__MMColParam+"%' ");
boolean rs_isEmpty = !rs.next();
boolean rs_hasData = !rs_isEmpty;
%>
<%
int currPage;
String sqlcount;
ResultSet rscount=null;
 
if(request.getParameter("page")==null)
{ sqlcount="select count(*) from driver where idcard like '"+Rsdriver__MMColParam+"%'"; 
rscount=stmtcount.executeQuery(sqlcount); 
 
}else {
   sqlcount=request.getParameter("sqlcount"); }int pageSize=10;int rowCount=0; //总的记录数 
if(request.getParameter("page")==null)
{
while (rscount.next()){ 
rowCount=rscount.getInt(1); 
sqlcount=(new Integer(rowCount)).toString();
}
} 
else {
rowCount=Integer.parseInt(sqlcount);
// out.println("rowcount   "+rowCount);
}int pageCount; //总的页数 
String strPage; 
strPage=request.getParameter("page"); 
if (strPage==null){ 
currPage=1; 
} 
else{ currPage=Integer.parseInt(strPage); if (currPage<1) currPage=1; } pageCount=(rowCount+pageSize-1)/pageSize; if (currPage>pageCount) currPage=pageCount; 
int thepage=(currPage-1)*pageSize; 
%><html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head><body bgcolor="#FFFFFF" text="#000000">
<form name="form1" method="post" action="mytest.jsp">
  <input type="hidden" name="test1" value="<%=request.getParameter("IDCARD")%>">
  <input type="text" name="IDCARD">
  <input type="submit" name="Submit" value="Submit">
  <input type="hidden" name="pageCount" value="<%=request.getParameter("pageCount")%>">
  <input type="hidden" name="sqlcount" value="<%=sqlcount%>">
  <input type="hidden" name="currPage" value="<%=request.getParameter("currPage")+1%>">
</form>
<p><br>
 
<form name="form2" method="post" action="">
  <input type="hidden" name="test1" value="<%=request.getParameter("IDCARD")%>">
  <input type="hidden" name="pageCount" value="<%=pageCount%>">
  <input type="hidden" name="sqlcount" value="<%=sqlcount%>">
  <input type="hidden" name="currPage" value="<%=currPage%>">
</form>
<p><br>
</p>     <%
if (!rs_isEmpty ) { int n=0; 
rs.absolute(thepage+1); while (n<(pageSize)&&!rs.isAfterLast()){

%>
<table width="75%" border="1" align="center">
  <tr> 
    <td><%=rs.getString("drivername")%></td>
    <td><%=rs.getString("idcard")%></td>
    <td><%=rs.getString("drivercard")%></td>
  </tr>
</table>
<div align="center">
  <% rs.next(); n++; } 
}
%>
  <%if(currPage>1){%>
  <a href="insertdriver.jsp?IDCARD=<%=Rsdriver__MMColParam%>"> 
  首页</a> 
  <%}%>
  <%if(currPage>1){%>
  <a href="javascript:form1()">上一页</a> 
  <%}%>
  <%if(currPage<pageCount){%>
  <a href="javascript:form2()"> 
  下一页</a> 
  <%}%>
  <%if(currPage<pageCount){%>
  
  尾页
  <%}%>
</div>
</body>
</html>
<%
if (rs!=null)
rs.close();
if (rscount!=null)
rscount.close(); 
if (stmt!=null)
stmt.close(); 
if (stmtcount!=null)
stmtcount.close(); 
if (conn!=null)
conn.close(); 
%>

Answer 8

document.form.submit(); 为什么不好用？ 
<script lanugage="javascript">
function linktopage()
{
IDCARD=document.form1.test1.value;
pageCount=document.from1.pageCount.value;
sqlcount=document.form1.sqlcount.value;
currPage=document.form1.currPage.value;
document.form1.submit();
}
</script><a href="java script:form1()">上一页</a> 
<a href="java script:form2()"> 
下一页</a> 
为什么点下一页时页面为空了呢？除非用window.location="...?.."
呢？但我不能用这种方法。

Answer 9

1.拼写问题pageCount=document.form1.pageCount.value;
2.form提交是可以取到参数的，将代码节选了一些，看看就可明白
为调试方便，将hidden暂显示为text刚才被类型转换的问题纠缠了一会儿，哎，java还是不熟啊
mytest.jsp
<%@ page contentType="text/html; charset=gb2312"%>
<script lanugage="javascript">
function form1()
{
  //IDCARD=document.form1.test1.value;
  /////////////////////////////
  pageCount=document.form1.pageCount.value;
  //////////////////////////////
  //sqlcount=document.form1.sqlcount.value;
  //currPage=document.form1.currPage.value;
  document.form1.submit();
}
function form2()
{
  //IDCARD=document.form2.test1.value;
  //pageCount=document.form2.pageCount.value;
  //sqlcount=document.form2.sqlcount.value;
  currPage=document.form2.currPage.value;
  currPage=currPage-1+2;
  document.form2.submit();
}
</script><%
int sqlcount=5;
int pageCount=4;
int currPage=2;
int Rsdriver__MMColParam=3;
String currPagestr="";
%><html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head><body bgcolor="#FFFFFF" text="#000000">
<form name="form1" method="post" action="">
<%
currPagestr=request.getParameter("currPage");
if(currPagestr!=null)
currPage=Integer.parseInt(currPagestr)-1;
else 
currPage=0;
%>
  IDCARD<input type="text" name="IDCARD" value="<%=request.getParameter("IDCARD")%>">
  <input type="submit" name="Submit" value="Submit">
  pageCount<input type="text" name="pageCount" value="<%=request.getParameter("pageCount")%>">
  sqlcount<input type="text" name="sqlcount" value="<%=sqlcount%>">
  currPage<input type="text" name="currPage" value="<%=currPage%>">
</form>
<p><br>
 
<form name="form2" method="post" action="">
<%
currPagestr=request.getParameter("currPage");
if(currPagestr!=null)
currPage=Integer.parseInt(currPagestr)+1;
else 
currPage=0;
%>
  IDCARD<input type="text" name="IDCARD" value="<%=request.getParameter("IDCARD")%>">
  <input type="submit" name="Submit" value="Submit">
  pageCount<input type="text" name="pageCount" value="<%=request.getParameter("pageCount")%>">
  sqlcount<input type="text" name="sqlcount" value="<%=sqlcount%>">
  currPage<input type="text" name="currPage" value="<%=currPage%>">
</form>
<p><br>
</p><div align="center">
  <%if(currPage>1){%>
  <a href="insertdriver.jsp?IDCARD=<%=Rsdriver__MMColParam%>"> 
  首页</a> 
  <%}%>
  <%if(currPage>1){%>
  <a href="javascript:form1()">上一页</a> 
  <%}%>
  <%if(currPage<pageCount){%>
  <a href="javascript:form2()"> 
  下一页</a> 
  <%}%>
  <%if(currPage<pageCount){%>
  尾页
  <%}%>
</div>
</body>
</html>