I am getting the following errors while trying my first spring project:
Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'context:component-scan
Here is the applicationContext.xml:
<?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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<context:component-scan base-package="com.xyz" />
</beans>
What is causing the error?
The answer is
This path of the schema location is wrong:
http://www.springframework.org/schema/beans
The correct path should end with /:
http://www.springframework.org/schema/beans/
It's too late but somewhat may useful to others
The matching wildcard is strict, but no declaration can be found for element 'context:component-scan
which Means you have Missed some Declarations or The Required Declarations Not Found in Your XML
In my case i forgot to add the follwoing
After Adding this the Problem Gone away
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
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"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
I was having issues with
Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'security:http'
and for me I had to add the spring-security-config jar to the classpath
http://docs.spring.io/spring-security/site/docs/3.1.x/reference/ns-config.html
EDIT:
It might be that you have the correct dependency in your pom.
But...
If you are using multiple spring dependencies and assembling into a single jar then the META-INF/spring.schemas is probably being overwritten by the spring.schemas of another of your spring dependencies.
(Extract that file from your assembled jar and you'll understand)
Spring schemas is just a bunch of lines that look like this:
http\://www.springframework.org/schema/p=org.springframework.beans.factory.xml.SimplePropertyNamespaceHandler
http\://www.springframework.org/schema/beans/spring-beans-3.0.xsd=org/springframework/beans/factory/xml/spring-beans-3.0.xsd
But if another dependency overwrites that file, then the definition will be retrieved from http, and if you have a firewall/proxy it will fail to get it.
One solution is to append spring.schemas and spring.handlers into a single file.
Check:
<?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: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/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
The above links need to be included
<context:property-placeholder location="classpath:sport.properties" />
<bean id="myFortune" class="com.kiran.springdemo.HappyFortuneService"></bean>
<bean id="myCoach" class="com.kiran.springdemo.setterinjection.MyCricketCoach">
<property name="fortuner" ref="myFortune" />
<property name="emailAddress" value="${ipl.email}" />
<property name="team" value="${ipl.team}" />
</bean>
</beans>
If using STS, you can in Eclipse mark the configuration file as "Bean Configuration" file (you can specify that when creating or on right click on a XML file):
You project has to have Spring Nature (right click on maven project for example):
then spring.xml is opened by default with Spring Config Editor
and this editor has Namespaces tab
Which enables you to specify the namespaces:
Please be aware, that it depends on dependencies (using maven project), so if spring-tx is not defined in maven's pom.xml, option is not there, which prevents you to have The matching wildcard is strict, but no declaration can be found for element 'tx:annotation-driven' 'context:component-scan' problem...
Add This Two Schema locations. That's enough and Efficient instead of adding all the unnecessary schema
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
With namespace declaration and schema location you can also check the syntax of the namespace use for example :-
<beans xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation= http://www.springframework.org/`enter code here`schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<context:annotation-driven/> <!-- This is wrong -->
<context:annotation-config/> <!-- This should work -->
There are 'META-INF/spring.schemas' files in various Spring jars containing the mappings for the URLs that are intercepted for local resolution. If a particular xsd URL is not listed in these files (for example after switching from http to https) Spring tries to load schemas from the Internet and if the system has no Internet connection it fails and causes this error.
This can be the case with Spring Security v5.2 and up where there is no http mapping for the xsd file.
To fix it change
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security.xsd"
to
xsi:schemaLocation="
http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/security
https://www.springframework.org/schema/security/spring-security.xsd"
Note that only actual xsd URL was modified from http to https (only two places above).
when you add context:component-scan for the first time in an xml, the following needs to be added.
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
Add xmlns context with http as shown below
xmlns:context="http://www.springframework.org/schema/context"
This error can also be caused if the jar file that contains the XSD you require is not included in your deployed class path.
Make sure the dependencies are available in your container.
Change http to https of the marked error or all the URL ending with *.xsd extension.
The correct path shouldn't end with "/", I had it wrong that caused the trouble
Right way:
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
Source: Stackoverflow.com