python通过JPype调用java

1、安装JPype

   pip install jpype1

2、java代码如下：

文件位置：com/JpypeDemo.java

package com;
public class JpypeDemo {
    private String str = "";
    public JpypeDemo() {
        this.str = "JpypeDemo Init";
    }
    public String getStr() {
        return str;
    }
    public void setStr(String str) {
        this.str = str;
    }
}

在com目录下执行编译 javac JpypeDemo.java 生成 JpypeDemo.class

runJava.py文件和com在同一个目录下：

import jpype  
from jpype import *  
jarpath = r'\home\yumh\test2'  
startJVM(jpype.getDefaultJVMPath(),"-ea", "-Djava.class.path=%s" % jarpath)  
JpypeDemo = jpype.JClass('com.JpypeDemo')
test = JpypeDemo()
res = test.getStr()
print res
jpype.shutdownJVM()

然后在和com同级目录下执行python runJava.py

测试环境可参考这边博客

https://www.cnblogs.com/mumuli/p/5806963.html