Updating oracle db using servlet

Servlet Exception; import javax.servlet.annotation.

Before inserting into BLOB field you have to convert the file object into one format and while retrieving also you have to revert back into file format.

If you won't do like this then while retrieving you will get error. To retrieve it you do the similar that reads the data from BLOB column the output the binary stream to a file then give the appropriate file extension.

This works not only on Word and PDF files but all types of files such as images, etc." id="ctl00_m_m_i_ctl00_gr_ctl05_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="4723018" / To do that you need to read the file as binary an do not perform any conversions on the in stream data then insert the binary stream to database column of BLOB type.

Thanks in advance, Neha" id="ctl00_m_m_i_ctl00_gr_ctl13_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="5139328" / computer and you store just the reference/path to the pdf file in the database" id="ctl00_m_m_i_ctl00_gr_ctl15_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="5139943" / Below is java method for Oracle: In Oracle column is taken as blob Before opening it for update insert EMPTY_BLOB() into it. You can get Input Stream object from file like File pdf File = new File(" File Path"); Input Stream is = new File Input Stream(file); *** public void save CAGAnomaly Details(Input Stream input Stream, int document Id) throws Exception catch(Exception ex) finally } *** Below is servlet method to download it: private void download Reply Attachement(Http Servlet Request request, Http Servlet Response response)throws IOException, Servlet Exception" id="ctl00_m_m_i_ctl00_gr_ctl17_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="5139957" / Hi neha, Below is java method for Oracle: In Oracle column is taken as blob Before opening it for update insert EMPTY_BLOB() into it. It's hard to find a professional web site today that doesn't have some sort of database connectivity.Webmasters have hooked online front ends to all manner of legacy systems, including package tracking and directory databases, as well as many newer systems like online messaging, storefronts, and search engines.This method will work with Servlet 3.0 and My SQL 5.5 and higher versions. Also Read: How to Connect Java (JDBC) with My SQL or Oracle Database Create a table in mysql database with following schema.

Leave a Reply