找不到Spring Application上下文
[英]Spring Application context not found
问题描述
I'm having an issue with reading the application context of my application. 
我在阅读应用程序的应用程序上下文时遇到问题。 I'm doing experiments with Vaadin . 我正在和Vaadin做实验。 My configuration class, which is annotated in a way I've used before in other projects and always works is annotated with: 我的配置类以我之前在其他项目中使用过的方式进行注释，并且始终可以使用以下方式进行注释：
@ImportResource("classpath:applicationContext.xml")
What makes this so odd is that no matter what I do, even using it to explicitly find the file, for example: 这么奇怪的是，无论我做什么，甚至用它来明确地找到文件，例如：
@ImportResource("/tmp/classpath:applicationContext.xml")
It still does not work! 它仍然无法正常工作！ I'm using Spring 3 at the moment (for historical reasons...) 我现在正在使用Spring 3（由于历史原因......）
2016/05/17 13:39 ContextLoader.initWebApplicationContext:319 - Context initialization failed java.lang.IllegalArgumentException at org.springframework.asm.ClassReader.(Unknown Source) at org.springframework.asm.ClassReader.(Unknown Source) at org.springframework.asm.ClassReader.(Unknown Source) at org.springframework.core.type.classreading.SimpleMetadataReader.(SimpleMetadataReader.java:52) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:80) at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:102) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:76) at org.springframework.context.annotation.ConfigurationClassUtils.checkConfigurationClassCandidate(ConfigurationClassUtils.java:70) at org.springframework.context.annotation.ConfigurationClassPostProcessor.processCon
1 个解决方案
解决方案1
0 已采纳 2016-05-20 20:48:46
After a lot of research we finally found what was going on. 经过大量的研究，我们终于找到了正在发生的事情。 Very tricky this one but it makes sense: 这个非常棘手，但它有道理：
Java 1.8 ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet Java 1.8 ASM ClassReader无法解析类文件 - 可能是由于尚未支持的新Java类文件版本
Essentially the new ASM is not reading classes the same way as it used to, and Spring 3 is reading them with the old ASM compatibility. 本质上，新的ASM不像以前那样读取类，而Spring 3正在使用旧的ASM兼容性读取它们。 This results in that I can run the application in Java 8 only if I change to Spring 4. Spring does guarantee compatibility between Spring 4 and any old java version since Java 6: 这导致我只有在更改为Spring 4时才能在Java 8中运行应用程序.Spring确保Spring 4与Java 6之后的任何旧Java版本之间的兼容性：
https://spring.io/blog/2015/04/03/how-spring-achieves-compatibility-with-java-6-7-and-8 https://spring.io/blog/2015/04/03/how-spring-achieves-compatibility-with-java-6-7-and-8
The oposite is not true which means that I cannot run Spring 3 with Java 8, and so we now have a good migration work to do :). oposite不正确，这意味着我无法使用Java 8运行Spring 3，因此我们现在有一个很好的迁移工作:)。
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