Open MS Word or Excel Stream in JSP Program
Posted by office viewer on May 8th, 2008In order to avoid the temporary file in the server, edraw office viewer component provided a httpopenfilefromstream method to open the office document from file stream directly. It works in the JSP environment.
For example:
Getfile.jsp example code:
String downloadDirName = request.getSession().getServletContext().getRealPath(DOWNLOAD_RELATIVE_PATH);
String downloadFileName = downloadDirName + “/” + fileMap.get(PARAM_DOCUMENT_ID).getString();
File downloadFile = new File(downloadFileName);
if (downloadFile.exists()) {
byte[] buffer = new byte[4096];
BufferedOutputStream output = null;
BufferedInputStream input = null;
try {
output = new BufferedOutputStream(response.getOutputStream());
input = new BufferedInputStream(new FileInputStream(downloadFileName));
output.write(“EDA_STREAMBOUNDARY”.getBytes());
int n = -1;
while ((n = input.read(buffer, 0, buffer.length)) > -1) {
output.write(buffer, 0, n);
}
output.write(“EDA_STREAMBOUNDARY”.getBytes());
output.flush();
} catch(Exception e) {
e.printStackTrace();
} finally {
if (output != null) output.close();
if (input != null) input.close();
}
}
else {
System.out.println(“[OfficeViewer Error] 404 File not found!”);
System.out.println(fileItemList.toString());
}
Open example code:
$(“OA1″).HttpInit();
$(“OA1″).HttpAddpostString(“DocumentID”, “sample.doc”);
$(“OA1″).HttpOpenFileFromStream(“http://192.168.1.1:8020/path/getfile.jsp“);
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