Mind.random()

I found this very interesting and thought I could post this here.

Let me jump directly to the code.

On your jsp, you have

<input id="productimage" name="productimage" type="file">

Your ActionForm will have

private FormFile productimage;

public FormFile getProductimage() {
return productimage;
}
public void setProductimage(FormFile productimage) {
this.productimage = productimage;
}

My product.hbm.xml has

<property
name="productimage"
type="blob"
column="productimage"
not-null="true"
length="250"
/>

My ActionClass has

Product product=new Product();
product.setProductimg(

product.toByteArrayImpl(adminForm.getProductimage()));
model.addProduct(factory, product);

And my model.addProduct() has


public boolean addProduct(SessionFactory factory, Product product) {
Session session =null;
try {
session = factory.openSession();
session.save(product);
} catch (Exception e) {
e.printStackTrace();
return false;
}
finally{
session.flush();
session.close();

}

return true;

}

and my ProductVO has

private byte[] productimg;
private Blob productimage;

/** Don't invoke this. Used by Hibernate only. */
public void setProductimage(Blob productimage) {
this.productimg = this.toByteArray(productimage);
}

/** Don't invoke this. Used by Hibernate only. */
public Blob getProductimage() {
return Hibernate.createBlob(this.productimg);
}

public byte[] getProductimg() {
return productimg;
}
public void setProductimg(byte[] productimg) {
this.productimg = productimg;
}

public byte[] toByteArray(Blob fromBlob) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
return toByteArrayImpl(fromBlob, baos);
} catch (SQLException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
if (baos != null) {
try {
baos.close();
} catch (IOException ex) {
}
}
}
}

public byte[] toByteArrayImpl(Blob fromBlob, ByteArrayOutputStream baos)
throws SQLException, IOException {
byte[] buf = new byte[4000];
InputStream is = fromBlob.getBinaryStream();
try {
for (;;) {
int dataSize = is.read(buf);

if (dataSize == -1)
break;
baos.write(buf, 0, dataSize);
}
} finally {
if (is != null) {
try {
is.close();
} catch (IOException ex) {
}
}
}
return baos.toByteArray();
}

public byte[] toByteArrayImpl(FormFile formfile)
throws SQLException, IOException {
byte[] buf = new byte[4000];
InputStream is = formfile.getInputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
for (;;) {
int dataSize = is.read(buf);

if (dataSize == -1)
break;
baos.write(buf, 0, dataSize);
}
} finally {
if (is != null) {
try {
is.close();
} catch (IOException ex) {
}
}
}
return baos.toByteArray();
}

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