js-- (void)webViewDidFinishLoad:(UIWebView *)webView
{
JSContext *contentJS = [webView valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"];
__weak typeof(self)weakSelf =self;
contentJS[@"console"][@"log"] = ^(JSValue * msg) {
JSValue *jsValue= msg;
NSString *str = [jsValue toString];

    NSLog(@"H5  log : %@", msg);
};
contentJS[@"console"][@"warn"] = ^(JSValue * msg) {
    NSLog(@"H5  warn : %@", msg);
};
contentJS[@"console"][@"error"] = ^(JSValue * msg) {
    NSLog(@"H5  error : %@", msg);
};
contentJS[@"Function"] = ^() {
    
    NSArray *thisArr = [JSContext currentArguments];
    
    for (JSValue *jsValue in thisArr) {
        
        NSLog(@"=======%@",jsValue);
        
    }
    //
    //        //JSValue *this = [JSContext currentThis];
    //
    //        //NSLog(@"this: %@",this);
    //
    NSLog(@"js调用oc---------The End-------");
};


NSLog(@"webViewDidFinishLoad");

}

pragma mark -- 获取cookie

• (void)getCookie:(NSURL )url
  {
  NSHTTPCookieStoragecookieJar = [NSHTTPCookieStorage sharedHTTPCookieStorage];
  NSArray *cachCookies = [cookieJar cookiesForURL:url];

  NSMutableString cookieString = [[NSMutableString alloc] init];
  for (NSHTTPCookiecookiew in [cookieJar cookies]) {
  [cookieString appendFormat:@"%@=%@;",cookiew.name,cookiew.value];
  }
  NSString *str=cookieString;
  }

pragma mark -- 清楚cookie

• (void)clearCookie:(NSURL *)url
  {
  NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];

  //清除所有cookie
  NSArray *cachCookies = [cookieStorage cookiesForURL:url];
  for (int i = 0; i < [cachCookies count]; i++) {
  NSHTTPCookie *cookie = (NSHTTPCookie *)[cachCookies objectAtIndex:i];
  [[NSHTTPCookieStorage sharedHTTPCookieStorage] deleteCookie:cookie];
  }
  }