from jpype import *
startJVM(getDefaultJVMPath(), "-ea")
java.lang.System.out.println("Hello World")
shutdownJVM()

package com;
public class Test {
  public String test(String str){
    return str;
  }
}

jar_path = os.path.join(os.path.abspath('.'), 'libs/test.jar')
jpype.startJVM(jpype.getDefaultJVMPath(), "-ea", "-Djava.class.path=%s" % jar_path)
Test = jpype.JClass('com.Test')
# 或者通过JPackage引用Test类
# com = jpype.JPackage('com')
# Test = com.Test
t = Test()
res = t.test("a")
print res
jpype.shutdownJVM()