Java ClassNotFoundException：org.springframework.context.support.AbstractApplicationContext
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ClassNotFoundException: org.springframework.context.support.AbstractApplicationContext
提问by Introspective
I am trying to follow this Apache CXF – JAX-WS – Simple Tutorialbut building the downloadedsample (out of the box!) creates a client that upon invocation refuses to run, issuing this error:
我正在尝试遵循此Apache CXF – JAX-WS – 简单教程，但构建下载的示例（开箱即用！）会创建一个在调用时拒绝运行的客户端，并发出以下错误：
Failed to load Main-Class manifest attribute from SampleWSCxfClient-0.0.1-SNAPSHOT.jar
无法从 SampleWSCxfClient-0.0.1-SNAPSHOT.jar 加载主类清单属性
I searched to find out more about this problem and found out this SO answerwhich prompted me to hack SampleWSCxfClient-0.0.1-SNAPSHOT.jar by opening it using 7-zipand adding into a file name META-INF/MANIFEST.MFthe following line:
我搜索以了解有关此问题的更多信息，并找到了这个 SO 答案，这促使我通过使用以下行打开它7-zip并将其添加到文件名中来破解 SampleWSCxfClient-0.0.1-SNAPSHOT.jar META-INF/MANIFEST.MF：
Main-Class: com.areyes.sample.client.SampleWSClient
I figured out that main class by simply looking at the only Java file in the project:
我通过简单地查看项目中唯一的 Java 文件来找出主类：
package com.areyes.sample.client;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.sample.service.SampleWebService;
public class SampleWSClient {
public SampleWSClient() {
ClassPathXmlApplicationContext classPathXmlAppContext = new ClassPathXmlApplicationContext("classpath:META-INF/beans.xml");
classPathXmlAppContext.start();
SampleWebService sampleWebService = (SampleWebService)classPathXmlAppContext.getBean("client");
System.out.println(sampleWebService.getDataFromWebService().getName());
System.out.println(sampleWebService.getDataFromWebService().getDescription());
System.out.println(sampleWebService.getDataFromWebService().getAge());
}
public static void main(String[] args){
new SampleWSClient();
}
}
I then tried to invoke SampleWSCxfClient-0.0.1-SNAPSHOT.jar again, but this time it fails with:
然后我尝试再次调用 SampleWSCxfClient-0.0.1-SNAPSHOT.jar，但这次它失败了：
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/context/support/AbstractApplicationContext
Caused by: java.lang.ClassNotFoundException: org.springframework.context.support.AbstractApplicationContext
at java.net.URLClassLoader.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: com.areyes.sample.client.SampleWSClient. Program will exit.
How do I make this sample work?
我如何使这个示例工作？
For your convenience, the entire sample package ZIP can be downloaded from here.
为方便起见，可以从这里下载整个示例包 ZIP 。
采纳答案by Withheld
I once came across a similar problem and after being unable to decipher the magic of running "a jar with many dependencies" from the command line, I worked around it by running it through Maven.
我曾经遇到过类似的问题，在无法解读从命令行运行“具有许多依赖项的 jar”的魔力之后，我通过 Maven 运行它来解决它。
Try this:
尝试这个：
mvn exec:java -Dexec.mainClass=com.areyes.sample.client.SampleWSClient
回答by sayan
for maven based projects, please follow the below link to create runnable jar. For maven based project, making jar using export->jar option doesnt work. It work for me successfully.
对于基于 maven 的项目，请按照以下链接创建可运行的 jar。对于基于 maven 的项目，使用 export->jar 选项制作 jar 不起作用。它成功地为我工作。
回答by Vivek Sen
I had the same problem but it got fixed after I updated the classpathPrefix in my pom.xml. Support_lib/ .
我有同样的问题，但在我更新 pom.xml 中的 classpathPrefix 后它得到了修复。支持_lib/。
After you build the project using maven, the 'target' folder had this Support_lib/ dir with all the spring jar files in it. so I used this dir name in the classpathPrefix and it worked.
使用 maven 构建项目后，'target' 文件夹中有这个 Support_lib/ 目录，其中包含所有 spring jar 文件。所以我在 classpathPrefix 中使用了这个目录名称并且它起作用了。
