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plurals

POUpload image to PostgreSQL using Java
primarykey
Id
19224004
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19224846
AnswerCount
3
ClosedDate
CommentCount
5
CommunityOwnedDate
CreationDate
2013-10-07T11:43:42.870
FavoriteCount
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2013-10-07T12:24:22.110
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2013-10-07T12:04:50.110
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text
Body
I'm trying to write a JSP web app that allows to upload images to a PostgreSQL database. I was following <a href="http://jdbc.postgresql.org/documentation/head/binary-data.html" rel="nofollow">this</a> as a guide, but the image is not uploaded to the DB and the method (below) enters the catch. This is my code so far: <pre><code>public boolean upIm() { try { File file = new File("bg.jpg"); FileInputStream fis = new FileInputStream(file); PreparedStatement ps = con.prepareStatement("INSERT INTO images VALUES (?, ?)"); ps.setString(1, "background"); ps.setBinaryStream(2, fis, (int) file.length()); ps.executeUpdate(); ps.close(); fis.close(); return true; } catch (Exception e) { e.printStackTrace(); return false; } } </code></pre> There seems to be a problem with the FileInputStream, because the statement that goes to the db is <code>INSERT INTO images VALUES ('background', ?)</code> , and I've tested file.length() and it works fine. That's it; if you need more info or more code please let me know. EDIT: I get this stacktrace: <pre><code>org.postgresql.util.PSQLException: ERROR: relation "images" does not exist Position: 13 at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2157) at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1886) at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255) at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:555) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:417) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:363) at bd.provaImg.upIm(provaImg.java:50) at bd.prova2.main(prova2.java:14) </code></pre> I think position 13 is the line in the class (not shown here) that simply instances the class in which there is this method.
Tags
<java><sql><jsp><postgresql><jdbc>
Title
Upload image to PostgreSQL using Java
singulars
PostAcceptedAnswerId
1. PO
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 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USmustieles
UserOwnerUserId
1. USmustieles
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PostLinksPostIdRelatedPostId
1. PL
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2. PL
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PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
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 PTAnswer
2. PO
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 PTAnswer
3. PO
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1. VO
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 POUpload image to PostgreSQL using Java
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 This table or related slice is empty.
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 VTDownMod
2. VO
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 POUpload image to PostgreSQL using Java
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 This table or related slice is empty.
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CommentsPostId

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