简介
pyjnius是一个用于访问java类的python库。
适用场景：极个别的加密算法等内容，用python不方便实现或者实现较耗时，可基于pyjnius把java类当做python库使用。
文档：
下载地址：https://pypi.python.org/pypi?%3aaction=search&term=jnius&submit=search
注意jnius的版本管理有点混乱，目前看来选择jniusx比较好。
git地址：
安装
先安装java jdk 和jre、cython
# pip3 install cython # pip3 install jniusx collecting jniusx downloading jniusx - 1.0.5. tar.gz requirement already satisfied: six >= 1.7.0 in /opt/python 3.5 / lib / python3.5 / site - packages( from jniusx) requirement already satisfied: cython in /opt/python 3.5 / lib / python3.5 / site - packages( from jniusx) installing collected packages: jniusx running setup.py install for jniusx...done successfully installed jniusx - 1.0.5
注意：jnius安装的坑比较多，请参考http://stackoverflow.com/search?q=jnius
如果出现importerror，一般是java环境变量或者path没有配置好。
jnius/jnius.c:4:20: fatal error: python.h 一般为缺python-dev, yum -y install python-devel
pip 安装不成功可以尝试 setup.py方式。
jnius/jnius.c: no such file or directory 需要利用原来保存的clone。
快速入门
hello world 实例：
我要评论
#!/usr/bin/env python
#- * -coding: utf - 8 - * -
#jnius_quick2.py
# author rongzhong xu 2016 - 08 - 02 wechat:
pythontesting
# https: //bitbucket.org/china-testing/python-chinese-library/src
""
"
jnius demo
tested in python2.7
""
"
from jnius
import autoclass
system = autoclass('java.lang.system')
system.out.println('hello world')
堆栈实例：
#!/usr/bin/env python
#- * -coding: utf - 8 - * -
#jnius_quick1.py
# author rongzhong xu 2016 - 08 - 02 wechat:
pythontesting
# https: //bitbucket.org/china-testing/python-chinese-library/src
""
"
jnius demo
tested in python2.7
""
"
from jnius
import autoclass
stack = autoclass('java.util.stack')
stack = stack()
stack.push('hello')
stack.push('world')
print(stack.pop())# -- > 'world'
print(stack.pop())# -- > 'hello'
调用java string的hashcode
#!/usr/bin/env python
#- * -coding: utf - 8 - * -
#jnius_quick3.py
# author rongzhong xu 2016 - 08 - 02 wechat:
pythontesting
# https: //bitbucket.org/china-testing/python-chinese-library/src
""
"
jnius demo: call java string 's hashcode
tested in python2.7
""
"
from jnius
import autoclass
string = autoclass('java.lang.string')
print(string("hello").hashcode())
调用jar包
#!python
#
vi com / sample / beach.java
package com.sample;
public class beach {
private string name;
private string city;
public beach(string name, string city) {
this.name = name;
this.city = city;
}
public string getname() {
return name;
}
public void setname(string name) {
this.name = name;
}
public string getcity() {
return city;
}
public void setcity(string city) {
this.city = city;
}
}
#
echo main - class: beach > manifest.txt
# jar cvfm test.jar manifest.txt com /
sample /*.class*/
测试：
#!python
#
ipython
python 3.5.2(
default, nov 7 2016, 18: 53: 51)
type "copyright", "credits"
or "license"
for more information.
ipython 5.1.0--an enhanced interactive python
.
? - > introduction and overview of ipython
's features.
% quickref - > quick reference.
help - > python 's own help system.
object ? - > details about 'object',
use 'object??'
for extra details.
in[2]: #注意要先把jar加载classpath环境变量。
in[3]: from jnius
import autoclass
in[4]: bla = autoclass(
'com.sample.beach')
in[5]: s = bla("tom", "shenzhen")
in[6]: s.getname()
out[6]: 'tom'
``
`
封装某模块的加密机制为python包实例：
* 拷贝： com cn org 到新建的临时目录
* echo main-class: aesutil >manifest.txt
* jar cvfm test.jar manifest.txt *
测试代码：
`
``
python
# - * -coding: utf - 8 - * -
#注意要先把jar加载classpath环境变量。
from jnius
import autoclass
aesutil = autoclass(
'com.oppo.sso.util.aesutil')
email = aesutil.aesencrypt(
"hello@126.com", "我是一个加密密钥")
print(email)# !python
# ipython
python 3.5.2(
default, nov 7 2016, 18: 53: 51)
type "copyright", "credits"
or "license"
for more information.
ipython 5.1.0--an enhanced interactive python
.
? - > introduction and overview of ipython
's features.
% quickref - > quick reference.
help - > python 's own help system.
object ? - > details about 'object',
use 'object??'
for extra details.
in[2]: #注意要先把jar加载classpath环境变量。
in[3]: from jnius
import autoclass
in[4]: bla = autoclass(
'com.sample.beach')
in[5]: s = bla("tom", "shenzhen")
in[6]: s.getname()
out[6]: 'tom'
``
`
封装某模块的加密机制为python包实例：
* 拷贝： com cn org 到新建的临时目录
* echo main-class: aesutil >manifest.txt
* jar cvfm test.jar manifest.txt *
测试代码：
`
``
python
# - * -coding: utf - 8 - * -
#注意要先把jar加载classpath环境变量。
from jnius
import autoclass
aesutil = autoclass(
'com.oppo.sso.util.aesutil')
email = aesutil.aesencrypt(
"hello@126.com", "我是一个加密密钥")
print(email)
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