As far as i know this issue appears only for the pathvariable at the end of the requestmapping. We were able to solve that by defining the regex addon in the requestmapping. /somepath/{variable:.+}
@PathVariable is to obtain some placeholder from the URI (Spring call it an URI Template) — see Spring Reference Chapter 16.3.2.2 URI Template Patterns @RequestParam is to obtain a parameter from the URI as well — see Spring Reference Chapter 16.3.3.3 Binding request parameters to method parameters with @RequestParam If the URL http://localhost:8080/MyApp/user/1234/invoices?date=12-05-2013 gets the … Read more
CORS’ preflight request uses HTTP OPTIONS without credentials, see Cross-Origin Resource Sharing: Otherwise, make a preflight request. Fetch the request URL from origin source origin using referrer source as override referrer source with the manual redirect flag and the block cookies flag set, using the method OPTIONS, and with the following additional constraints: Include an … Read more
I think transactions belong on the service layer. It’s the one that knows about units of work and use cases. It’s the right answer if you have several DAOs injected into a service that need to work together in a single transaction.
You’re making a conceptual mistake. JSF is not a view technology. JSF is a MVC framework. Exactly like as Spring MVC, albeit they have both a different ideology; JSF is component based MVC and Spring MVC is request based MVC. Thus they are full competitors. You cannot mix them. You should choose the one or … Read more
This is a big topic. The Spring reference doc devotes multiple chapters to it. I recommend reading the ones on Aspect-Oriented Programming and Transactions, as Spring’s declarative transaction support uses AOP at its foundation. But at a very high level, Spring creates proxies for classes that declare @Transactional on the class itself or on members. … Read more
<context:annotation-config> is used to activate annotations in beans already registered in the application context (no matter if they were defined with XML or by package scanning). <context:component-scan> can also do what <context:annotation-config> does but <context:component-scan> also scans packages to find and register beans within the application context. I’ll use some examples to show the differences/similarities. … Read more
TL;DR The @Autowired annotation spares you the need to do the wiring by yourself in the XML file (or any other way) and just finds for you what needs to be injected where and does that for you. Full explanation The @Autowired annotation allows you to skip configurations elsewhere of what to inject and just … Read more
You’re trying to use Spring MVC’s form tag. This tag renders an HTML form tag and exposes a binding path to inner tags for binding. It puts the command object in the PageContext so that the command object can be accessed by inner tags. [..] Let’s assume we have a domain object called User. It … Read more
First of all, Spring and EJB(+JTA) are competing technologies and usually not to be used together in the same application. Choose the one or the other. Spring or EJB(+JTA). I won’t tell you which to choose, I will only tell you a bit of history and the facts so that you can easier make the … Read more