Phantom Js does not wait for page to be load or all jquery code to be executed

Question

I am trying to convert a webpage into pdf but web page is getting load and some jquery function needs to executed on page to bring dynamic data which takes time hence page loading is not a problem here but dynamic addition of data via jquery is troubling me alot. below is code which i am using to generate pdf

String pathToPhantomJS = "/usr/bin/phantomjs" //path to your phantom js
String pathToRasterizeJS = "/home/tothenew/Desktop/rasterize.js" //path to your rasterize.js
String paperSize = "A4"
String url = "https://www.google.co.in/" //url of your web page to which you want to convert into pdf
File outputFile = File.createTempFile("sample", ".pdf") //file in which you want to save your pdf

//TODO: also do exception handling stuff . i am not doing this for simplicity

Process process = Runtime.getRuntime().exec(pathToPhantomJS + " " + pathToRasterizeJS + " " + url + " " + outputFile.absolutePath + " " + paperSize);
int exitStatus = process.waitFor(); //do a wait here to prevent it running for ever
if (exitStatus != 0) {
log.error("EXIT-STATUS - " + process.toString());
}

is there is way in java i can tell wait for page to be load or what should i do so that phantom js will capture the webpage only after its get loaded completely.

It seems like the loading of the page is handled by phantomjs. Other similar SO posts say that this is a problem with phantomjs. — Steampunkery, Sep 29 '17 at 14:18
none has given me a solution that should work i have seen this post but nothing help me here https://stackoverflow.com/questions/11340038/phantomjs-not-waiting-for-full-page-load — , Sep 29 '17 at 14:25
i think i figure out the problem updated same in question pls check let me know if what should i do — , Sep 29 '17 at 14:29

score 0 · Accepted Answer · answered Sep 29 '17 at 14:57

According to this Stack Overflow post, this is a problem with phantomjs, not Java. However, If you are just trying to get a webpage as PDF, there are other options. After a bit of google-fu, I found this website which supplies a flexible command-line tool with ample documentation, as well as a C library. Seeing as you are already using a command-line tool to get your page, implementing this one should be no problem in your code. Here is a short example:

    String wkhtmltopdf_path = "/usr/local/bin/wkhtmltopdf";
    String paperSize = "A4";
    String url = "https://www.google.com/";

    // This is where your output file is/was defined, now with error handling
    File outputFile = null; 
    try {
        //file in which you want to save your pdf
        outputFile = File.createTempFile("sample", ".pdf");
        System.out.println(outputFile.getAbsolutePath()); // Show output file path, remove this in production
    } catch (IOException e1) {
        e1.printStackTrace();
    }

    // This is where your process runs, with error handling
    Process process = null;
    try {
        process = Runtime.getRuntime().exec(String.format("%s -s %s %s %s", wkhtmltopdf_path, paperSize, url, outputFile.getAbsolutePath()));
    } catch (IOException e) {
        e.printStackTrace(); // Do your error handling here
    }

    // This is where your exitStatus and waitFor() was/is, with error handling
    int exitStatus = 0;
    try {
        //do a wait here to prevent it running for ever
        exitStatus = process.waitFor();
    } catch (InterruptedException e) {
        e.printStackTrace(); // Do your error handling here
    }
    if (exitStatus != 0) {
        // Do error handling here
    }

what does String.format("%s -s %s %s %s") will do. i didnt understand the logic of how it should wait for all page operation to be completed ? can u pls explain — , Sep 29 '17 at 15:55
@FerozSiddiqui that is a format string. The %s means string and the variables are substituted in sequence. https://docs.oracle.com/javase/8/docs/api/java/lang/String.html#format-java.lang.String-java.lang.Object...- — Steampunkery, Sep 29 '17 at 18:04

Phantom Js does not wait for page to be load or all jquery code to be executed

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