Hey there! Let's fix that URL concatenation issue you're facing. The core problem here is two-fold: first, the text variable you're trying to use is trapped inside your for-loop (so it's not accessible outside), and second, you're hardcoding the string "text" instead of referencing the actual ID value you retrieved.

Here's a cleaned-up, working solution:

Step 1: Properly Retrieve and Store the Last ID #

Your XPath targets the last ID element in the table, so findElements will only return a single element. We can simplify this by using findElement (singular) instead of dealing with a list, which makes the code cleaner. We'll store the ID in a variable that's accessible when we build the URL.

// Grab the last ID element directly (no need for a list)
WebElement lastIdElement = driver.findElement(By.xpath("(//table[contains(@class,'mat-table')]//tr/td[1])[last()]"));
// Extract the text and store it in a reusable variable
String lastId = lastIdElement.getText();
System.out.println("Get the id:" + lastId);

If you want to keep using findElements (maybe for safety in case the element might not exist), you can do this instead:

List<WebElement> idElements = driver.findElements(By.xpath("(//table[contains(@class,'mat-table')]//tr/td[1])[last()]"));
String lastId = "";
// Only extract text if the list isn't empty
if (!idElements.isEmpty()) {
    lastId = idElements.get(0).getText();
    System.out.println("Get the id:" + lastId);
}

Step 2: Correctly Append the ID to the URL #

Now just reference the lastId variable when building your new URL, instead of using the string literal "text":

String confirmationURL = "https://test-websites.net/#/email?type=confirm";
// Use the variable lastId instead of "text"
String newurl = confirmationURL + "&id=" + lastId;

// Navigate to the properly formatted URL
driver.get(newurl);

This will generate the exact URL you're expecting: https://test-websites.net/#/email?type=confirm&id=47474 (or whatever the actual ID value is).

A quick note: If there's a chance the ID element might not exist (leading to a NoSuchElementException), wrap the findElement call in a try-catch block to handle that gracefully.

内容的提问来源于stack exchange，提问作者jay m