使用Phantomjs

Question

我很长一段时间以来一直试图这样做。 [PHANTOMJS VERSION] =＆gt; 2.1.1 我的目标是登录门户，记录后转到不同的菜单，插入参数到研究可用文件，如果还没下载则下载文件。 问题是我可以登录门户网站并访问索引页面，但是当我点击标签时，＃34; a＆＃34;这是一个按钮，它带我到新的表单填写搜索文件，它带我回到登录页面...不知道为什么会发生这种情况。如果我在chrome dev中使用这个脚本它可以正常工作......

登录成功

重定向登录页面  这是我的代码：

<pre><code>var page = require('webpage').create();
var system= require('system');
var loadInProgress = false;
var testindex = 0;
var address;
var pos;
var stringa;



// Route "console.log()" calls from within the Page context to the main Phantom context (i.e. current "this")
page.onConsoleMessage = function(msg) {
    console.log(msg);
};


page.onError = function(msg, trace) {

  var msgStack = ['ERROR: ' + msg];

  if (trace && trace.length) {
    msgStack.push('TRACE:');
    trace.forEach(function(t) {
      msgStack.push(' -> ' + t.file + ': ' + t.line + (t.function ? ' (in function "' + t.function +'")' : ''));
    });
  }

  console.error(msgStack.join('\n'));
};

page.onAlert = function(msg) {
    console.log('alert!!> ' + msg);
};

page.onLoadStarted = function() {
    loadInProgress = true;
    console.log("CARICAMENTO PAGINA INIZIATO"); //*Page started loading*
};

page.onLoadFinished = function(status) {
    loadInProgress = false;
    if (status !== 'success') {
        console.log('Caricamento pagina fallito !'); //*Page failed to load*
        phantom.exit();
    } else {
        console.log("CARICAMENTO PAGINA COMPLETATO"); //*Page loading complete*
        page.render("foto" + testindex + ".png");//*Screen Capture*
        console.log("Foto effettuata"); 
        var sitoattuale= page.evaluate(function(){
            return window.location.href;
        });
        console.log(sitoattuale);
    }
};

var steps = [
    function() {
        page.open(system.args[1]);
    },

    function() {


        page.evaluate(function() {
                    //*insert username and password and click the button to submit the form*
                    document.getElementById("twsTemplate_Content1_twsModule_txtUser").value="MYUSERNAME";
                    document.getElementById("twsTemplate_Content1_twsModule_txtPSW").value="MYPASSWORD";
                    document.getElementById("twsTemplate_Content1_twsModule_btnLogin").click();


        });
                //*Capture inserted credentials*
        page.render("credenziali.png")
    },
        function() {

        page.evaluate(function(){
            var a=document.getElementById("twsTemplate_Header1_Mainmenu2_aspMainMenun16Items");
            var b= a.getElementsByTagName("a");
            var c= b[0];
            c.click();
        });


                //*Capture click of the button that brings me to the form where I ve to insert parameters for the search*
        page.render("Cliccato_ricerca.png")

    },

    function() {
        //*I capture the screen as I should be to the form page but it caputre the login page unfilled*
        page.render("ramomisura.png")
        console.log("stouscendo");

    }
];interval = setInterval(function() {
    if (!loadInProgress && typeof steps[testindex] == "function") {
        if (testindex==0){
            console.log("Fase " + (testindex+1) + " : Avvio portale");
        }else{
            if(testindex==1){
                console.log("Fase " + (testindex+1) + " : Loing in corso ...");
            }else{
                if(testindex==2){
                    console.log("Fase " + (testindex+1) + " : Tentativo di navigazione al ramo misure ...")
                    }else{
                        console.log("Fase " + (testindex+1) + " : Termine Programma");
                    }   
                }
            }
        steps[testindex]();
        testindex++;
    }
    if (typeof steps[testindex] != "function") {
        console.log("Programma Terminato");
        phantom.exit();
    }
}, 100)
</code></pre>