1.JSPatch 准备
地址:https://github.com/bang590/JSPatch
框架:libz.1.tbd , JavaScriptCore.framework
2.cocospod(可得到的三个文件)
JPEngine.h,JPEngine.m,JSPatch.js
3.Demo(重要的三个文件夹)
Extensions,JSPatch,Loader
********测试********
1.在本地生成一个main.js文件
require('SecondViewController') defineClass('ViewController',{ rightClick:function(sender){ var vc = SecondViewController.alloc().init() self.navigationController().pushViewController_animated(vc,YES) } })
2.JSPatchDemo
2.1 ViewController
@interface ViewController () @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"right" style:(UIBarButtonItemStylePlain) target:self action:@selector(rightClick:)]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. // [SecondViewController setGlBlock:^(NSString *) { // // }]; } #pragma mark - click - (IBAction)rightClick:(id)sender{ NSLog(@"某某某"); } @end
2.2 AppDelegate (执行main.js)
2.2.1 使用JPEngine (点击ViewController的rightNavigationItem 会跳转SecondViewController)
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. [JPEngine startEngine]; NSString *sourcePath = [[NSBundle mainBundle] pathForResource:@"main" ofType:@"js"]; NSString *script = [NSString stringWithContentsOfFile:sourcePath encoding:NSUTF8StringEncoding error:NULL]; [JPEngine evaluateScript:script]; return YES; }
2.2.2 使用JPLoader(5s前点击ViewController的rightNavigationItem 会打印’某某某’,5s后会跳转SecondViewController)
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(5.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ [JPLoader runTestScriptInBundle]; //5.0秒之前执行 本来就有的方法,5.0秒之后执行js里面的方法 [JPLoader setLogger:^(NSString *log) { NSLog(@"hgl say:"%@"",log); }]; }); return YES; }
*********线上***********
1.服务端
文件管理 baseURL/version/v2.zip (version:app版本号,v2:js版本号)
接口需求(request: {version:当前版本号,index:js版本号(为空是表示未下载过js.main)},
response:{state:状态码,update:是否需要下载,operate:是否需要执行当前js})
2.打包main.js
$php pack.php main.js -o v2 (pack.php 存在于Loader文件夹中,pack.php需要RSA私钥)
使用RSA加密验证 (只是为了验证,无法避免转包。如若需要可使用https协议)
*生成RSA公钥私钥
1.安装openssl
sudo apt-get install openssl
2.生成RSA私钥 //该命令会生成1024位的私钥
openssl genrsa -out rsa_private_key.pem 1024
3.把RSA私钥转换成PKCS8格式
openssl pkcs8 -topk8 -inform PEM -in rsa_private_key.pem -outform PEM –nocrypt
4.生成公钥
openssl rsa -in rsa_private_key.pem -out rsa_public_key.pem -pubout
3.客户端
3.1 请示是否需要下载js,是否需要执行js
3.2 下载main.js
[JPLoader updateToVersion:3 callback:^(NSError *error) { }];
3.3 下载完成之后执行main.js
[JPLoader updateToVersion:3 callback:^(NSError *error) { [JPLoader run]; }];
*注:1.JPLoader中需要放入RSA的公钥
2. updateToVersion方法会下载zip包,zip解压-> RSA验证 ->成功 -> 回调
3. JSPatch平台托管 http://jspatch.com/Apps/index
4. 阿里百川平台托管 http://baichuan.taobao.com
注:2017-03 苹果官网 已经不允许app 动态修改一些东西,上App Store的应用最好先别使用这个东西。企业版app 还是可以用的。