Click() 事件在按钮上不起作用 (XPATH)

Question

I'm trying to get a Click() event on this button (called: Add PRODUCT) but it is not working, working on a JAVA automation.

I'm getting this XPATH:

//*[@id="order-items"]/div 1 /div/button 1 /span

This is the FULL XPATH:

/html/body/div 3 /main/div 2 /div/div/form/div[5]/div/div 1 /section 1 /div 1 /div/button 1 /span

So, I'm trying to do something like this:

driver.findElement(By.xpath("//*[@id="order-items"]/div[1]/div/button[1]/span")).click();

What am i doing wrong?

EDIT#1:

If i click on "ADD PRODUCT" i got this XPATH:

//*[@id="add_products"]

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EDIT #2

I got this:

xpath: //*[@id="order-items"]/div 1 /div/button 1

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I got this:

xpath: //*[@id="add_products"]

Answer 1

first, .click() will only work on html active tags. second, focus directly on the button.

driver.findElement(By.xpath("*//button[@id='add_products']").click();