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respond_to do |format|
format.js {
# 在 client 端執行 alert (javascript)

“alert(‘Hello Rails’);”,

# page not fount

status: 404,

# render /app/views/your-controller/test_action.js.erb

action: “test_action”,

# 將 test_item 以 json 格式 render

json: @test_item,

# 找到指定的檔案作 render

file: filename,

# 直接 render text: Hello

text: “Hello”
}

end

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1.info.plist里面配置

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<key>CFBundleDocumentTypes</key>
<array>
	<dict>
		<key>CFBundleTypeName</key>
		<string>downloadPDF</string>
		<key>LSHandlerRank</key>
		<string>Default</string>
		<key>LSItemContentTypes</key>
		<array>
			<string>com.adobe.pdf</string>  //pdf
			<string>com.microsoft.word.doc</string>  //doc
			<string>org.openxmlformats.wordprocessingml.document</string> //docx
		</array>
	</dict>
</array>
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  1. 重启service
    staging: sudo service nginx restart
    production:
    先找到nginx 主进程
    ps -ef | grep nginx
    kill -HUP (root 对应的进程号)

  2. 修改application.yml
    cd ResumeHack/shared
    直接修改application.yml

ps：重启rails server 就是重启service就行

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wx.request({
    url: '/api/login',
    success: (data) => {
        if(data.statusCode === 200) {
            console.log(data);
            // data 中应该会有 Set-Cookie 或 set-cookie 的字样，嗯，那就是服务器种下的 cookie
        }
    }
})

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if(iPhoneXSeries){
  _webview.scrollView.contentInset = UIEdgeInsetsMake(88, 0, 0, 0);
}else{
  _webview.scrollView.contentInset = UIEdgeInsetsMake(64, 0, 0, 0);
}

ios 12之前 用这个方法将webview下移来正常显示页面，但是ios12之后这个页面有一个问题就是进行了某些操作之后页面会上移回UIEdgeInsetsMake(0, 0, 0, 0)
所以找到了另一个方法固定页面位置

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self.edgesForExtendedLayout=UIRectEdgeNone;

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def compare_app_version(current, old)
    return if current.blank? || old.blank?
    la = current.split('.')
    lb = old.split('.')
    i = 0 
    if la.length > lb.length
      len = la.length
    else
      len = lb.length
    end 
    while i <= len  do  
      if (la[i] && !lb[i] && la[i].to_i > 0) || (la[i].to_i > lb[i].to_i)
          return 1
      elsif (lb[i] && !la[i] && lb[i].to_i > 0) || (la[i].to_i < lb[i].to_i)
          return -1
      end 
      i +=1 
    end 
    return 0
  end

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ios webview登录最重要的就是将登陆之后的cookie存起来
在ios12之前我们登录都能正常从- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler方法中取到response之后，直接处理成cookie存起来
但是ios12开始 此方法登录就取不到response里最重要的set-cookie的值 我们就只能在h5那边登录之后的页面取到cookie经过字符串处理 将他们存起来

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-(void)loginSuccess:(NSHTTPURLResponse*)response orWithCookie:(NSString*)cookie{
    //清除之前的coockie
        NSHTTPCookieStorage *cookieJar = [NSHTTPCookieStorage sharedHTTPCookieStorage];
        NSArray *_tmpArray = [NSArray arrayWithArray:[cookieJar cookies]];
        for (id obj in _tmpArray) {
            [cookieJar deleteCookie:obj];
        }
        // 删除NSUserDefault里面的值
        NSUserDefaults *defatluts = [NSUserDefaults standardUserDefaults];
        NSDictionary *dictionary = [defatluts dictionaryRepresentation];
        for(NSString *key in [dictionary allKeys]){
            if([key isEqualToString:@"cookie"]){
                [defatluts removeObjectForKey:key];
            }
            [defatluts synchronize];
        }
    //读取wkwebview中的cookie 方法
    NSArray *cookies =[NSHTTPCookie cookiesWithResponseHeaderFields:[response allHeaderFields] forURL: response.URL];
    if (cookies.count <= 0){
        NSString *b =[[self achieveStringWithRootString:cookie key:@"_ResumeHack_session"] stringByAppendingString:@" path=/; HttpOnly, "];
         NSMutableArray* mcookies =  [cookies mutableCopy];
        [mcookies addObject:[b cookie]];
         cookies = [NSArray arrayWithArray:mcookies];
    }
    
    for (NSHTTPCookie *cookie in cookies) {
            //将 cookie 存进NSHTTPCookieStorage
            [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];
        }
        //把cookie存到NUserDefault里面
        NSData *cookiesData = [NSKeyedArchiver archivedDataWithRootObject: [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]];
        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
        [defaults setObject: cookiesData forKey: @"cookie"];
        [defaults synchronize];
        NSLog(@"userdefault中的cookie%@",[defaults objectForKey:@"cookie"]);
    
        //看看存入到了NSHTTPCookieStorage了没有
        NSHTTPCookieStorage *cookieJar2 = [NSHTTPCookieStorage sharedHTTPCookieStorage];
        for (NSHTTPCookie *cookie in cookieJar2.cookies) {
            NSLog(@"NSHTTPCookieStorage中的cookie%@", cookie);
        }

    [self dismissViewControllerAnimated:YES completion:^{
        _loginComplete();
    }];
    [Loading hide];
}

字符串处理cookie

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- (NSString *)achieveStringWithRootString:(NSString *)rootString key:(NSString *)key{
    NSRange aRange = [rootString rangeOfString:[NSString stringWithFormat:@"%@=",key]];
    NSString *c = [rootString substringFromIndex:aRange.location];
    NSLog(@"c===============%@", c);
    NSRange bRange = [c rangeOfString:@";"];//匹配得到的下标
    NSString *d = [c substringToIndex:bRange.location + bRange.length];
    return d;
}

ps:在登录、登出中清除cookie跟userdefault中的值的时候要避免清除其他有用的值 否则会导致userdefault值的丢失 造成很奇怪的bug

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1.广告页加载思路。广告页的内容要实时显示，在无网络状态或者网速缓慢的情况下不能延迟加载，或者等到首页出现了再加载广告页。所以这里我不采用网络请求广告接口获取图片地址，然后加载图片的方式，而是先将图片异步下载到本地，并保存图片名，每次打开app时先根据本地存储的图片名查找沙盒中是否存在该图片，如果存在，则显示广告页。

2.判断广告页面是否更新。无论本地是否存在广告图片，每次启动都需要重新调用广告接口，根据图片名称或者图片id等方法判断广告是否更新，如果获取的图片名称或者图片id跟本地存储的不一致，则需要重新下载新图片，并删除旧图片。

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