In Spring config xml we have tag and in that tag we have xmlns, xsi etc..
what all these details means ? When and how these details matters?
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
</beans>
thanks,
You can find the nice answer of xsi:schema use here Use of xsi:schemaLocation
And this spring document will help you understand the spring configuration in details XML Schema-based configuration
Related
I have a lot of errors in my project and they won't go off and I know that they are related to Dependency related stuff but I'm confused. Can someone tell me how to fix this if you have also faced the same kind of issue?
Try out this one in your XML:
We use JPA namespace for XML based enabling like below:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/data/jpa
https://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
<jpa:repositories base-package="path.to.repository.package" />
</beans>
Could anybody help on this.
I am getting below exception not sure why?
Exception while starting server
Configuration problem: You cannot use a spring-security-2.0.xsd or
spring-security-3.0.xsd or spring-security-3.1.xsd schema with Spring
Security 3.2. Please update your schema declarations to the 3.2
schema.
could anybody help in this please. I am using 3.0.5.RELEASE in Pom.xml and giving spring-security-3.0.xsd in security-context.
<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.0.xsd">
**Please update your schema declarations to the 3.2 schema.**
Change schema declaration to 3.2..because you may be using Spring security 3.2 jar( exception ..or spring-security-3.1.xsd schema with Spring Security 3.2.)
http://www.springframework.org/schema/security/spring-security-3.2.xsd"
Or don't mention the version,it will automatically take the higher version provided.
http://www.springframework.org/schema/security/spring-security.xsd"
In Spring there is a XML configuration for bean right?
What is the difference between:
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
and
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
Also i'm a bit curious with the difference between SpringMVC, MVC and just Spring
Difference is in formats of documents definitions. First is called DTD, second - XSD. Both are used to describe possible contents of xml document. DTD is older than XSD. XSD is more flexible and powerful than DTD. More differences you can see here.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN"
"http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
<!-- bean definitions here -->
</beans>
The equivalent file in the XML Schema-style would be…
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- bean definitions here -->
</beans>
The above Spring XML configuration fragment is boilerplate that you can copy and paste (!) and then plug definitions into like you have always done.
Differences between an XML Schema Definition (XSD) and Document Type Definition (DTD) include: XML schemas are written in XML while DTD are derived from SGML syntax. XML schemas define datatypes for elements and attributes while DTD doesn't support datatypes. ... XML schemas are extensible while DTD is not extensible.
I have use a .dtd to my applicationContext.xml, but now i want to use Spring's AOP based on annotation. I've been told to add a in my applicationContext.xml.
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<aop:aspectj-autoproxy />
...
But something wrong happens. It seems that the file doesn't recognize the aop node, so i think i should import one more .dtd file, and i find this:
<!DOCTYPE aspectj PUBLIC
"-//AspectJ//DTD//EN" "http://www.eclipse.org/aspectj/dtd/aspectj.dtd">
but can i use both .dtd togeter? how?
thx
You don't have to use DOCTYPE here, better declare xml namespaces like this:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<beans>
<aop:aspectj-autoproxy />
...
xmlns="http://www.springframework.org/schema/beans" means that beans will be root namespace (you don't have to use <beans:bean>) and aop will be accesible as desired.
The two DTDs you cite are not constructed in a way that allows them to be used together. In particular, the definition of beans in http://www.springframework.org/dtd/spring-beans.dtd is just
<!ELEMENT beans (
description?,
(import | alias | bean)*
)>
It does not provide for a child named aop:aspectj-autoproxy, and it doesn't provide any mechanism for later users like you to add new things to the content of beans.
DTDs can be built for extensibility and to support the integration of elements from multiple namespaces, though it requires a bit of forethought and planning. When extension points are not included, it's typically pretty hard or impossible to extend the DTD without just rewriting it.
I've implemented my Application using SecurityContextImpl as SecurityContext. anything works well (Authentication and Authorization).
Now I want to use Spring Security Annotations (#Secured , ...) , I my searched result in a single comment :"USE in your context.xml file"
is there any other way to embed security annotations using non-file-based ContextImpls?
Here's the config snippet you need. Not sure why you don't want to enable via XML.
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans
xmlns:security="http://www.springframework.org/schema/security"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.0.xsd">
<security:global-method-security secured-annotations="enabled" />
</beans:beans>