大约有 40,000 项符合查询结果（耗时：0.0402秒） [XML]
No serializer found for class org.hibernate.proxy.pojo.javassist.Javassist?
...causes it (it might also be a field in some nested object, not only in the root entity you are fetching).
If do not need the object in JSON, annotate the getter of this field (or the field itself, if you do not need to accept incoming values either) with @JsonIgnore, for example:
// this field wi...
What's the easiest way to install a missing Perl module?
...for installing. This is much safer, since it means that tests don't run as root.
If you have an old CPAN shell, simply install the new cpan ("install CPAN") and when you reload the shell, it should prompt you to configure these new directives.
Nowadays, when I'm on a system with an old CPAN, the f...
What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
...;
}
But there were also buggy JDBC drivers, starting with the org.gjt.mm.mysql.Driver as well known example, which incorrectly registers itself inside the Constructor instead of a static block:
package com.dbvendor.jdbc;
import java.sql.Driver;
import java.sql.DriverManager;
public class BadDri...
GitHub Error Message - Permission denied (publickey)
...sent from an account other than the one with the ssh keys (e.g. running as root).
– David LeBauer
Jul 20 '16 at 18:58
1
...
How do you use “git --bare init” repository?
... user.email adelphus@example.com
> git commit -m "added afile"
[master (root-commit) 614ab02] added afile
1 file changed, 1 insertion(+)
create mode 100644 afile.txt
The git config commands are only needed if you haven't already told git who you are. Note that if you now run git branch, you'l...
Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
...
Using these addresses, create a file /etc/docker/daemon.json:
$ sudo su root
# cd /etc/docker
# touch daemon.json
Put this in /etc/docker/daemon.json:
{
"dns": ["10.0.0.2", "10.0.0.3"] ...
Set a DateTime database field to “Now”
...
Oops yes NOW() is Mysql, sorry. But the questions remains.
– Thibault Witzig
Dec 20 '10 at 9:38
...
A cron job for rails: best practices?
... How do you call this from the console? I did load "#{Rails.root}/lib/tasks/cron.rake" and rake cron, but got NameError: undefined local variable or method `cron' for main:Object
– B Seven
Jul 22 '11 at 15:40
...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
... to look for a file that matches the URL on the hard disk. If the document root of the server is set to, say, /var/www, it may look whether the file /var/www/foo/bar.html exists and serve it if so. If the file ends in ".php" it will invoke the PHP interpreter and then return the result. All this ass...
Browse orphaned commits in Git
...ommit 7949837, 06 Jul 2016)
reflog: continue walking the reflog past root commits
If a repository contains more than one root commit, then its HEAD reflog may contain multiple "creation events", i.e. entries whose "from" value is the null sha1.
Listing such a reflog currently stops prem...