Question

I am using hibernate. When I try to insert values into my db I am getting error.

Here is the stack trace

Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'postalCode' in 'field list'
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

Here is a overview of my Pojo class

 @Entity 
    public class HeadOffice implements java.io.Serializable 
{


private Long officeId;  
private String name;    
private String addr1;   
private String addr2;   
private String postalCode;  
private String country;     
private String email;   
private String tel1;    
private String tel2;

public HeadOffice() { }

public String getPostalCode() 
{       
   return this.postalCode;  
}

public void setPostalCode(String postalCode) 
 {      
    this.postalCode = postalCode;   
     }
}

And this is the corresponding entry for the postal code property in the hbm.xml file

<property name="postalCode" type="string">
            <column name="postal_code" length="24" not-null="true" />
        </property>

during sql query exceqution the field name is taken as postalCode instead of postal_code

How can I correct this?
Thanks

Answer 1

You seem to be mixing up annotation-style configuration and XML-style configuration. While this is possible, it’s rarely the intention.

I suspect that your configuration is simply ignoring the .hbm.xml file and taking the config from your annotated class instead.

Try either:

1. removing @Entity from your class, or
2. adding @Column(name="postal_code") to the getPostalCode() method.