<%@ page language="java" import="java.util.*,java.io.*"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
</head>
<%
out.clear();
out = pageContext.pushBody();
response.setContentType("application/pdf");
try {
//从后台读回来的文件全路径
String filepath = new String(request.getParameter("lj").getBytes("iso-8859-1"),"utf-8");
String strPdfPath = new String(filepath);
//判断该路径下的文件是否存在
File file = new File(strPdfPath);
if (file.exists()) {
DataOutputStream temps = new DataOutputStream(response
.getOutputStream());
DataInputStream in = new DataInputStream(
new FileInputStream(strPdfPath));
byte[] b = new byte[2048];
while ((in.read(b)) != -1) {