public static void renderFile(
HttpServletResponse resp,
String filename,
InputStream cont_stream,
boolean showpic,
boolean ignorespace)
throws IOException {
if (cont_stream == null) return;
if (ignorespace) filename = filename.replace(" ", "");
if (!showpic)
resp.addHeader(
"Content-Disposition",
"attachment; filename=" + new String(filename.getBytes(), "iso8859-1"));
resp.setContentType(Mime.getContentType(filename));
ServletOutputStream os = resp.getOutputStream();
byte[] buf = new byte[1024];
int len = 0;
while ((len = cont_stream.read(buf)) != -1) {
os.write(buf, 0, len);
}
os.flush();
}
protected void service(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, java.io.IOException {
String p = req.getParameter("r");
if (p == null || (p = p.trim()).equals("")) {
String pi = req.getPathInfo();
return;
}
byte[] cont = res2cont.get(p);
if (cont != null) {
resp.setContentType(Mime.getContentType(p));
ServletOutputStream os = resp.getOutputStream();
os.write(cont);
os.flush();
return;
}
InputStream is = null;
try {
is = appCL.getResourceAsStream(p); // getInputStreamByPath(p) ;
if (is == null) {
is = new Object().getClass().getResourceAsStream(p);
if (is == null) return;
}
byte[] buf = new byte[1024];
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int len;
while ((len = is.read(buf)) >= 0) {
baos.write(buf, 0, len);
}
cont = baos.toByteArray();
res2cont.put(p, cont);
resp.setContentType(Mime.getContentType(p));
ServletOutputStream os = resp.getOutputStream();
os.write(cont);
os.flush();
return;
} finally {
if (is != null) is.close();
}
}
public static void renderXormFile(
HttpServletRequest req,
HttpServletResponse resp,
Class xormc,
String xormprop,
long pkid,
String filename,
boolean showpic,
Date lastmodify)
throws ClassNotFoundException, Exception {
filename = filename.replace(" ", "");
if (!showpic)
resp.addHeader(
"Content-Disposition",
"attachment; filename=" + new String(filename.getBytes(), "iso8859-1"));
if (lastmodify != null) {
resp.setDateHeader("Last-Modified", lastmodify.getTime());
}
if (req != null) {
long l = req.getDateHeader("If-Modified-Since");
if (l > 0) {
if (lastmodify != null
&& lastmodify.getTime() / 1000 <= l / 1000) { // 由于文件系统的最后修改时间精确到秒,所以需要去除毫秒以便于计算
resp.setStatus(304); // not modify
return;
}
}
}
GDB g = GDB.getInstance();
long filelen = g.getXORMFileContLength(xormc, xormprop, pkid);
if (filelen < 0) return;
resp.setContentLength((int) filelen);
resp.setContentType(Mime.getContentType(filename));
ServletOutputStream os = resp.getOutputStream();
GDB.getInstance().loadXORMFileContToOutputStream(xormc, xormprop, pkid, os);
os.flush();
}
public static void renderFile(
HttpServletRequest req,
HttpServletResponse resp,
String filename,
byte[] file_cont,
boolean showpic,
Date lastmodify)
throws IOException {
if (file_cont == null) return;
// if(!showpic)
// resp.addHeader("Content-Disposition", "attachment;
// filename=\""+MimeUtility.encodeText(filename,"UTF-8",null)+"\"");
filename = filename.replace(" ", "");
if (!showpic)
resp.addHeader(
"Content-Disposition",
"attachment; filename=" + new String(filename.getBytes(), "iso8859-1"));
if (lastmodify != null) {
resp.setDateHeader("Last-Modified", lastmodify.getTime());
}
if (req != null) {
long l = req.getDateHeader("If-Modified-Since");
if (l > 0) {
if (lastmodify != null
&& lastmodify.getTime() / 1000 <= l / 1000) { // 由于文件系统的最后修改时间精确到秒,所以需要去除毫秒以便于计算
resp.setStatus(304);
return;
}
}
}
resp.setContentType(Mime.getContentType(filename));
ServletOutputStream os = resp.getOutputStream();
os.write(file_cont);
os.flush();
}
