用print就行啦,给你一段带有javascript的jsp程序你看看就知道啦<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<%
request.setCharacterEncoding("GB2312");
%>
<jsp:useBean id="admin" scope="request" class="dsp.web.Admin"/>
<jsp:setProperty name="admin" property="username" param="username"/>
<jsp:setProperty name="admin" property="password" param="password"/>
<%
admin.validUser();
if(admin.isValid())
{
if(admin.getFlag()==2){
session.setAttribute("reply", "true");
response.sendRedirect("leaveword.jsp");
}
else{
out.println("<script language=javascript> alert('对不起,您没有此权限!'); location.href='leaveword.jsp';</script>");
}
}
else
{
out.println("<script language=javascript> alert('"+ admin.getMsg() + "'); location.href='leaveword.jsp';</script>");
}
%>