小编Dus*_*Sun的帖子

在web.xml我有这个

 <session-config>
   <session-timeout>2</session-timeout>
 </session-config>

 <listener>
  <listener-class>myapplication.SessionListener</listener-class>
 </listener>

在SessionListener.java我有

public void sessionDestroyed (HttpSessionEvent event){    
   System.out.println("Visitor Removed!!");
}

但它似乎System.out.println("Visitor Removed!!")从未被执行过.我是Tomcat 6和JSP的新手.有什么建议吗？

我想在一个右侧有2个按钮UINavigationBar.以下是源代码.没有错误,但也没有按钮.这是一个UIViewController,而不是一个UINavigationViewController

let buttonEdit: UIButton = UIButton.buttonWithType(UIButtonType.Custom) as! UIButton
buttonEdit.frame = CGRectMake(0, 0, 40, 40)
buttonEdit.setImage(UIImage(named:"me44.png"), forState: UIControlState.Normal)
buttonEdit.addTarget(self, action: "rightNavItemEditClick:", forControlEvents: UIControlEvents.TouchUpInside)
var rightBarButtonItemEdit: UIBarButtonItem = UIBarButtonItem(customView: buttonEdit)

let buttonDelete: UIButton = UIButton.buttonWithType(UIButtonType.Custom) as! UIButton
buttonDelete.frame = CGRectMake(0, 0, 40, 40)
buttonDelete.setImage(UIImage(named:"me44.png"), forState: UIControlState.Normal)
buttonDelete.addTarget(self, action: "rightNavItemDeleteClick:", forControlEvents: UIControlEvents.TouchUpInside)

var rightBarButtonItemDelete: UIBarButtonItem = UIBarButtonItem(customView: buttonDelete)

// add multiple right bar button items       
self.navigationController?.navigationItem.setRightBarButtonItems([rightBarButtonItemDelete, rightBarButtonItemEdit] as [AnyObject], animated: true)

//I also tried code below no luck …

我有一个小的React项目.Webpack生成的bundle.js是6.3Mb.如何将尺寸减小到<2.0Mb？(2Mb仍然很大但可以接受).完整的源代码在github上

webpack.config.js

module.exports = {
    devtool: 'inline-source-map',
    entry: [
        './app/components/app.jsx'
    ],
    output: {
        path: './public',
        filename: 'bundle.js'
    },
    resolve: {
        modulesDirectories: ['node_modules', 'app'],
        extensions: ['', '.js', '.jsx', '.scss']
    },
    module: {
        loaders: [
            {
                test: /\.jsx?$/,
                exclude: /node_modules/,
                loaders: ['happypack/loader']
            },
            {
                test: /\.scss$/,
                loaders: [
                    'style',
                    'css',
                    'autoprefixer?browsers=last 3 versions',
                    'sass?outputStyle=expanded'
                ]
            },
            {
                test: /\.(jpe?g|png|gif|svg)$/i,
                loaders: [
                    'url?limit=8192',
                    'img'
                ]
            }
        ]
    },
    plugins: [
        new webpack.HotModuleReplacementPlugin(),
        new webpack.NoErrorsPlugin(),
        new HtmlWebpackPlugin({
            title: 'Fullstack Rebel',
            template: './app/templates/index_template.ejs'
        }), …

嗨,大家好,

/ tomcat_lib下有一个abc.jar.我需要在我的def.java中使用它

我累了

javac -classpath/tomcat_lib/-d ../classes def.java

但它不起作用

但是,如果我使用它可行

javac -classpath /tomcat_lib/abc.jar -d ....

谁能帮忙解释一下呢？

我正在尝试构建一个在线国际象棋游戏应用程序，该应用程序使用 WebRTC 供 2 个玩家进行交谈。我发现 OnIceCandidate 被触发了 4 次，因此生成了 4 个 ICE（或候选者？）。这篇文章说多次射击是可以的。我的问题是，其他玩家应该得到所有 ICE 吗？或者某些 ICE 或任何足够好？

{'sdpMid': 'sdparta_0', 'sdpMLineIndex': 0, 'candidate': 'candidate:0 1 UDP 2122121471 1.2.3.121 57386 典型主机'}

{'sdpMid': 'sdparta_0', 'sdpMLineIndex': 0, 'candidate': 'candidate:2 1 UDP 2122187007 1.2.3.112 57387 典型主机'}

{'sdpMid': 'sdparta_0', 'sdpMLineIndex': 0, 'candidate': 'candidate:4 1 UDP 2122055935 192.168.56.1 57388 典型主机'}

{'sdpMid': 'sdparta_0', 'sdpMLineIndex': 0, 'candidate': 'candidate:6 1 UDP 2122252543 2002:824a:1479::824a:1479 57389 典型主机'}

{'sdpMid'：'sdparta_0'，'sdpMLineIndex'：0，'候选'：'候选：3 1 UDP 1685987327 192.231.71.2 57387典型srflx raddr 10.88.33.112 rport 57387'}

"2015-06-30T17:30:36.000Z"是MySQL中DateTime值的示例.如何在Swift中将其转换为NSDate？

下面是我的代码,但它不起作用

var sqlDateFormatter = NSDateFormatter()
sqlDateFormatter.dateFormat = "yyyy’-‘MM’-'dd’T'HH’:'mm’:'ss'Z’"
self.whenPublished = self.sqlDateFormatter.dateFromString("2015-06-30T17:30:36.000Z")