我在Python中使用JPype,所以我可以调用Java函数。我无法导入自己的jar文件。
我有这个罐子:/home/di/eclipse_plugins/plugins/org.eclipse.birt.report.engine_4.2.1.v20120820.jar
在org.eclipse.birt.report.engine.api
包中有一个EngineConfig
类定义。我试图实例化并使用我在那个罐子里的这个类。在常规Java中,这就是我所拥有的:
import org.eclipse.birt.report.engine.api.EngineConfig;
EngineConfig config = new EngineConfig();
config.setLogConfig("/home/di/logs");
我在Python中有这个:
import jpype
from jpype import *
jvmPath = jpype.getDefaultJVMPath()
jpype.startJVM(jvmPath, "-Djava.class.path=/home/di/eclipse_plugins/plugins/*.jar")
engineConfig = JPackage("org").eclipse.birt.report.engine.api.EngineConfig
engineConfig.setLogConfig("/home/di/logs")
jpype.shutdownJVM()
然而,当我运行它时,我收到此错误:
Traceback (most recent call last):
File "test.py", line 15, in <module>
engineConfig.setLogConfig()
File "/usr/lib64/python2.6/site-packages/jpype/_jpackage.py", line 53, in __call__
raise TypeError, "Package "+self.__name+" is not Callable"
TypeError: Package org.eclipse.birt.report.engine.api.EngineConfig.setLogConfig is not Callable
答案 0 :(得分:1)
我无法重现完全相同的错误(相反,我得到了“RuntimeError:找不到匹配的重载”)。但是,我发现你的Python代码存在问题:
engineConfig = JPackage("org").eclipse.birt.report.engine.api.EngineConfig
您在engineConfig中获得的是一个类。
setLogConfig()不是静态方法,因此您必须首先实例化EngineConfig类:
# Get EngineConfig class
EngineConfig = JPackage("org").eclipse.birt.report.engine.api.EngineConfig
# Instantiate EngineConfig
engineConfig = EngineConfig()
# Call method
engineConfig.setLogConfig("/home/di/logs")