这篇文章主要为大家展示了“Jython 2.7.2中提示URI is not hierarchical怎么办”，内容简而易懂，条理清晰，希望能够帮助大家解决疑惑，下面让小编带领大家一起研究并学习一下“Jython 2.7.2中提示URI is not hierarchical怎么办”这篇文章吧。
由于需要使用Jython。但是发现一个诡异的现象IDE使用没有问题，但是打包jar报错。
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Properties props = new Properties();
props.put("python.home","D:\\jython2.7.2");
props.put("python.path","D:\\jython2.7.2\\Lib\\site-packages");
props.put("python.console.encoding", "UTF-8"); // Used to prevent: console: Failed to install '': java.nio.charset.UnsupportedCharsetException: cp0.
props.put("python.security.respectJavaAccessibility", "false"); //don't respect java accessibility, so that we can access protected members on subclasses
props.put("python.import.site","false");
//props.put("python.cachedir.skip","true");
props.put("org.python.netty.noUnsafe","true");
Properties preprops = System.getProperties();
PythonInterpreter.initialize(preprops, props, new String[0]);// 此处报异常
PythonInterpreter pyInterp = new PythonInterpreter();java.lang.IllegalArgumentException: URI is not hierarchical
at java.io.File.<init>(File.java:418)
at org.python.core.PrePy.getJarFileNameFromURL(PrePy.java:427)
at org.python.core.PrePy._getJarFileName(PrePy.java:362)
at org.python.core.PrePy.getJarFileName(PrePy.java:345)
at org.python.core.PySystemState.doInitialize(PySystemState.java:1195)
at org.python.core.PySystemState.initialize(PySystemState.java:1130)
at org.python.core.PySystemState.initialize(PySystemState.java:1085)
at org.python.core.PySystemState.initialize(PySystemState.java:1080)
at org.python.util.PythonInterpreter.initialize(PythonInterpreter.java:63)
at com.langtutu.ncs.api.robot.core.Test.<init>(Test.java:34)
at com.langtutu.ncs.api.service.impl.HomestaySchedulingServiceImpl.DownOrderTest(HomestaySchedulingServiceImpl.java:90)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)使用IDE和远程调用分别调试跟踪了一下jython，定位到代码报错行： 
IDE调试 发现url是如下的： jar:file:/D:/maven/apache-maven-3.3.9/repository/org/python/jython/2.7.2/jython-2.7.2.jar!/org/python/core/PrePy.class
远程调试
嵌套不能用。
maven打包时候将jython剔除；运行时候加载外部jar包即可。
剔除：
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.2.10.RELEASE</version>
<configuration>
<layout>ZIP</layout>
<!--去除在生产环境中不变的依赖 多个用逗号隔开,-->
<excludeGroupIds>
org.python
</excludeGroupIds>
</configuration>
</plugin>
</plugins>
</build>运行：
java -Dloader.path="lib/" -jar .\ncsapi-0.0.1-SNAPSHOT.jarlib里面就是jar包。此时运行完全正常
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原文链接：https://my.oschina.net/u/169565/blog/4633433
