I wanna store an entity(a String + an image) in PostgresQL using Spring MVC and Hibernate Here is my table. The image is supposed to be the type of oid.
CREATE TABLE document
(
name character varying(200),
id serial NOT NULL,
content oid, // that should be the image
CONSTRAINT document_pkey PRIMARY KEY (id )
)
WITH (
OIDS=FALSE
);
Here is the entity that I want to store.
@Entity
@Table(name = "document")
public class Document {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id")
private Long id;
@Column(name = "name")
private String name;
@Column(name="content")
private Blob content; //this is the image
//getters- setters
You can see the variable "name" is a String, not Long. Still when I submit the form with a value which is not numeric it throws org.postgresql.util.PSQLException: Bad value for type long : x
here is the form:
<form:form method="post" action="save.html" commandName="document" enctype="multipart/form-data">
<form:errors path="*" cssClass="error"/>
<table>
<tr>
<td><form:label path="name">Name</form:label></td>
<td><form:input path="name" /></td>
</tr>
<tr>
<td><form:label path="content">Document</form:label></td>
<td><input type="file" name="file" id="file"></input></td>
</tr>
<tr>
<td colspan="2">
<input type="submit" value="Add Document"/>
</td>
</tr>
</table>
</form:form>
If I enter a numeric value and submit it, OK. But any non-numeric value triggers the above mentioned exception...I read that it might be caused by that I do not use OID properly but I do not know what should I do to eliminate this exception. Actually I do not understand the name of the excpetion either. It says "bad value for type long" . but who wants type long? the variable "name" is type String!!!!
Finally, here is the Controller
@RequestMapping(value = "/save", method = RequestMethod.POST)
public String save(@ModelAttribute("document") Document document, @RequestParam("file") MultipartFile file) {
try {
Blob blob = Hibernate.createBlob(file.getInputStream());
document.setContent(blob);
documentDao.save(document);
} catch (Exception e) {
e.printStackTrace();
}
return "redirect:/index.html";
}
Any advice is appriciated.
oidis used to hold a reference to a large object in thepg_largeobjecttable. – Endopeptidase