从 Java 启动 Spring 应用程序的异常

java spring maven-2 maven-assembly-plugin

2022-09-03 12:37:20

我能够使用Maven编译并开始我的Spring项目：

mvn -e clean compile exec:java -Dexec.mainClass=de.fraunhofer.fkie.tet.vmware.manager.Test

但是，当我使用（包括）将所有jar组装到单个文件中时，我总是在执行期间得到一个：maven-assembly-pluginapplicationContext.xmlExceptionjava

java -cp target/test-jar-with-dependencies.jar:. de.fraunhofer.fkie.tet.vmware.manager.Test

  INFO: Loading XML bean definitions from class path resource [applicationContext.xml]
  Sep 6, 2010 10:37:21 AM org.springframework.util.xml.SimpleSaxErrorHandler warning
  WARNING: Ignored XML validation warning
  org.xml.sax.SAXParseException: schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/context/spring-context.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>.
  ...
  Exception in thread "main" org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: 
  Line 10 in XML document from class path resource [applicationContext.xml] is invalid; nested exception is org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: 
  The matching wildcard is strict, but no declaration can be found for element 'context:annotation-config'.
  ...
  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:annotation-config'.

我还尝试附加架构定义，即等，直接到类路径，但没有任何成功。spring-context.xsd

less src/main/resources/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: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">

      <context:annotation-config />   <!-- wegen '@PostConstruct' -->
  <!--<context:component-scan base-package="de.fraunhofer" />     -->
  ...
  </beans>

答案 1

Spring 命名空间处理程序使用 files 和 .由于具有这些名称的文件存在于不同的 Spring jar 中，因此可能只有一个文件保留在之后的目标 jar 中。/META-INF/spring.schemas/META-INF/spring.handlersmaven-assembly-plugin

也许您可以手动合并这些文件，并以某种方式配置为使用此合并文件覆盖目标jar中的文件。maven-assembly-plugin

答案 2

我怀疑你的spring配置文件缺少XML命名空间。它应该被添加到你的spring配置文件的根元素中，如下所示：context

<?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">

    <context:annotation-config />
    <context:component-scan base-package="com.abc.xyz" />

</beans>