同样,涉及到了路径处理,path模块也是需要的。 我们通过path模块的path.exists方法来判断静态文件是否存在磁盘上。不存在我们直接响应给客户端404错误。 如果文件存在则调用fs.readFile方法读取文件。如果发生错误,我们响应给客户端500错误,表明存在内部错误。正常状态下则发送读取到的文件给客户端,表明200状态。 var serve...
从医生那里：请注意fs.exists()
This is a new feature and may not work in older versions of Node.js. While you can opt out of using it, your dependencies may still be using it (example package usingnode::path-exists). Pass in a Node.js target that that doesn't support it to strip thenode:protocol from imports: ...
// webpack.config.jsconstpath=require('path');module.exports={entry:'./bin/core.js',output:{path:path.join(__dirname,'/dist'),filename:'core.js',},target:'node',// 默认是web}; 代码语言:javascript 复制 // test-cli-0174\bin\utils.jsimport{pathExistsSync}from'path-exists';exportfun...
var server = http.createServer(function (request, response) { var pathname = url.parse(request.url).pathname; var realPath = path.join("assets", pathname); //console.log(realPath); var ext = path.extname(realPath); ext = ext ? ext.slice(1) : 'unknown'; fs.exists(realPath, function ...
• 验证路径是否存在– fs.exists(path ， callback) – fs.existsSync(path ) • 获取文件信息– fs.stat(path, callback ) – fs.statSync(path ) • 删除文件– fs.unlink(path, callback ) – fs.unlinkSync(path )其他操作 • 列出文件– fs.readdir(path [, options], callback ) – ...
functionexists(pth, mode) {try{ fs.accessSync(pth, mode);returntrue; }catch(e) {returnfalse; } } path.relative path.relative方法接受两个参数,这两个参数都应该是绝对路径。该方法返回第二个路径相对于第一个路径的那个相对路径。 path.relative('/data/orandea/test/aaa','/data/orandea/impl/bbb...
(ZK_HOST,SESSION_TIMEOUT,this);Statstat=zk.exists(NODE_PATH,false);if(stat==null){System.out.println("节点不存在");}else{System.out.println("节点存在");}}publicvoidprocess(WatchedEventevent){// 处理ZooKeeper事件}publicstaticvoidmain(String[]args){try{ZooKeeperExampleexample=newZooKeeperExample...
pathObject.extandpathObject.nameare ignored ifpathObject.baseexists For example, on POSIX: 1//If `dir`, `root` and `base` are provided,2//`${dir}${path.sep}${base}`3//will be returned. `root` is ignored.4path.format({5root: '/ignored',6dir: '/home/user/dir',7base: 'file...
protectedvirtualvoidLoadSiteMapFromStore(){stringpathToOpen;lock(this) {// If a root node exists, LoadSiteMapFromStore has already// been called, and the method can return.if(rootNode !=null) {return; }else{ pathToOpen = HttpContext.Current.Server.MapPath("~"+"\\"+ sourceFilename);if(...