Detailed explanation of Python's sample code for calling Java

This article mainly introduces Python Detailed explanation of calling Java instances. Friends in need can refer to

Detailed explanation of Python calling Java instances

Foreword:

Python is not as good as Java for server-side programming, so Java code may need to be called in this regard

Prerequisite:

Linux Environment

1 Installation jpype1

Test code after installation ：

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

2 Call the non-jdk jar package, test.jar

The package contains the com.Test class

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

Python calls the jar package

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()

note: Pay attention to permission issues under Linux

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