python调用java API

// 如过已经安装过，请略过这两步
yum install gcc
yum install gcc-c++

// 安装python-devel ， 避免报错：error: command 'gcc' failed with exit status 1
yum install python-devel 
// 至于pip的安装，请参考：http://blog.csdn.net/xlxxcc/article/details/60958604
pip install jpype1

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

python test.py

Hello World
JVM activity report     :
        classes loaded       : 31
JVM has been shutdown

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

// 编译
javac Test.java

// 打包，必须把整个目录（报名和目录名要对应）打包，否则无法访问类。
jar cvf test.jar com

jarpath = os.path.join(os.path.abspath('.'), 'libs/test.jar')
jpype.startJVM(jpype.getDefaultJVMPath(), "-ea", "-Djava.class.path=%s" % jarpath)
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.run("a")
print res
jpype.shutdownJVM()