我有以下代码。我想打印出该目录中的文件名并附加一个href标签。下面的代码工作,但只有我的node.js应用程序正在监听的端口号仍然存在。我怎么能删除它(所以我的hrefs实际上会工作?)。与截断URL的文档对象有关吗?
<h1><%= title %></h1>
<p>Welcome to
<%=t itle %>
</p>
<ul>
<% for(var i=0; i<fs.readdirSync( './Week4/').length; i++) {%>
<li>
<a href="<%= fs.readdirSync('./Week4/')[i] %>">
<%=f s.readdirSync( './Week4/')[i] %>
</a>
</li>
<% } %>
</ul>
答案 0 :(得分:0)
通过阅读您的评论,您的问题似乎不在您认为的位置。
您看到的// address of the notebook
var address = "http://localhost:8888/notebooks/Untitled.ipynb";
// auth token from Jupyter console
var authToken = "af6bc1d90688bb6c26aeb206b8690e4855d27ef8d265b1bc";
// cell number with a widget output
var cellNumber = 10;
// this function is used to verify that a page is fully loaded
// source: https://github.com/ariya/phantomjs/blob/master/examples/waitfor.js
function waitFor(testFx, onReady, timeOutMillis) {
var maxtimeOutMillis = timeOutMillis ? timeOutMillis : 3000,
start = new Date().getTime(),
condition = false,
interval = setInterval(function() {
if ( (new Date().getTime() - start < maxtimeOutMillis) && !condition ) {
// If not time-out yet and condition not yet fulfilled
condition = (typeof(testFx) === "string" ? eval(testFx) : testFx());
} else {
if(!condition) {
// If condition still not fulfilled (timeout but condition is 'false')
console.log("'waitFor()' timeout");
phantom.exit(1);
} else {
// Condition fulfilled (timeout and/or condition is 'true')
console.log("'waitFor()' finished in " + (new Date().getTime() - start) + "ms.");
typeof(onReady) === "string" ? eval(onReady) : onReady();
clearInterval(interval); //< Stop this interval
}
}
}, 250); //< repeat check every 250ms
};
// log in to a notebook using a token
function logIn() {
console.log("Logging in");
page.evaluate(function(token) {
document.forms[0].password.value = token;
document.forms[0].submit();
}, authToken);
}
// wait for a notebook to fully load, find the
// needed output cell and save it as a PNG file
function saveAsPNG() {
console.log("Saving PNG")
// Wait for 'notebook-container' to be visible
waitFor(function() {
// Check in the page if a specific element is now visible
return page.evaluate(function() {
return $("#notebook-container").is(":visible");
});
}, function() {
console.log("The notebook-container element should be visible now.");
var clipRect = page.evaluate(function(cell){
// we are selecting only the output cell
var searchStr = 'div.input_prompt:contains("[' + cell + ']:")';
var parentCell = $(searchStr).parents('div.cell')[0];
// get only the data div
var outputSubarea = $(parentCell).find('div.output_subarea')[0];
// get the coordinates of the data div
return outputSubarea.getBoundingClientRect()
}, cellNumber);
page.clipRect = {
top: clipRect.top,
left: clipRect.left,
width: clipRect.width,
height: clipRect.height
};
page.render('example.png');
phantom.exit();
});
}
var page = require('webpage').create();
// it seems, viewportSize should fully cover the
// the rendered div position, or nothing will be saved.
page.viewportSize = { width: 5000, height: 5000 };
page.open(address, function (status) {
// Check for page load success
if (status !== "success") {
console.log("Unable to open a page");
} else {
// Wait for 'password_input' to be visible
waitFor(function() {
// Check in the page if a specific element is now visible
return page.evaluate(function() {
return $("#password_input").is(":visible");
});
}, function() {
console.log("The password_input element should be visible now.");
logIn();
saveAsPNG();
});
}
});
会自动写入,因为您指定了一个相对于当前网址的href:
如果当前网址为phantomjs script.js
,转到相对网址:8080
实际上会将您重定向到localhost:8080/Week4/index.html
。
如果这不是您打算工作的方式,则必须指定绝对URL。例如,使用itemlist
会将您重定向到另一台服务器(或同一服务器上的另一个侦听器)。
<小时/> 我不知道你想要实现什么,但对我而言,你期望的行为听起来并不是很好。链接不应重定向到同一服务器上的其他端口,除非您正在执行非常具体的操作。
如果您能告诉我们真正想要实现的目标,我们可以为您提供更好的帮助。