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我想將兩個不同類的登錄和搜索方法調用到主類中。我已經編寫了兩個diff類用於登錄和搜索，但是當我調用包含main方法的類中的兩個方法時，它給出了以下錯誤>>如何使用java在selenium webdriver中將一個類調用另一個類的函數/方法
線程「main」中的異常java.lang.NullPointerException 在Test_package_Ted_baker.search.search_1（search.java:14） 在Test_package_Ted_baker.SHopping.main（SHopping.java:16）
是否有人可以幫助我瞭解如何從一個調用方法解決方案班到另一班。我的代碼如下>>
主類
package Test_package_Ted_baker;
import org.openqa.selenium.WebDriver;
public class SHopping {
static WebDriver driver;
public static void main(String[] args) throws InterruptedException {
// TODO Auto-generated method stub
login_Ted_Baker obj=new login_Ted_Baker();
obj.login_to_Ted_Baker("[email protected]", "[email protected]");
System.out.println("Login sucessfully");
search obj1=new search();
obj1.search_1();
obj.user_logout();
System.out.println("User log out sucessfully");
}
}
登錄類
package Test_package_Ted_baker;
import java.util.HashMap;
import java.util.Map;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.interactions.Actions;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
public class login_Ted_Baker {
WebDriver driver;
public static void main (String [] args) throws InterruptedException
{
login_Ted_Baker obj=new login_Ted_Baker();
obj.login_to_Ted_Baker("[email protected]", "[email protected]");
System.out.println("Login Sucessfully");
obj.user_logout();
}
public void usename(String Username)
{
WebElement Username_TB=driver.findElement(By.name("j_username"));
Username_TB.sendKeys(Username);
}
public void password(String Password)
{
WebElement Password_TB=driver.findElement(By.name("j_password"));
Password_TB.sendKeys(Password);
}
public void submit()
{
driver.findElement(By.xpath(".//*[@id='command']/div/input ")).click();
}
public void login_Ted_Baker(WebDriver driver){
this.driver = driver;
}
public void user_logout() throws InterruptedException
{
Thread.sleep(1000);
WebElement Sign_in_link=driver.findElement(By.xpath(".//*[@id='page']/header/div/nav[1]/ul/li[3]/div/a"));
WebElement Sign_out_button=driver.findElement(By.xpath(".//*[@id='account']/ul/li[2]/a"));
Thread.sleep(1000);
Actions Act1=new Actions(driver);
Act1.moveToElement(Sign_in_link).click();
Act1.moveToElement(Sign_out_button).click().build().perform();
System.out.println("Logout sucessfully");
}
public void login_to_Ted_Baker(String Username,String Password) throws InterruptedException
{
System.setProperty("webdriver.chrome.driver","C:\\Chrome\\chromedriver_win32\\chromedriver.exe");
//System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.Jdk14Logger");
Thread.sleep(2000);
ChromeOptions options = new ChromeOptions();
Map<String, Object> prefs = new HashMap<String, Object>();
prefs.put("credentials_enable_service", false);
prefs.put("password_manager_enabled", false);
options.setExperimentalOption("prefs", prefs);
options.addArguments("start-maximized");
options.addArguments("disable-infobars");
driver = new ChromeDriver(options);
try{
driver.get("http://www.tedbaker.com/");
WebDriverWait wait = new WebDriverWait(driver, 40);
wait.until(ExpectedConditions.presenceOfElementLocated(By.xpath("html/body/div[3]/div[2]/div/div/ul/li[1]/a")));
if(driver.findElement(By.xpath("html/body/div[3]/div[2]/div/div/ul/li[1]/a")).isDisplayed())
{
driver.findElement(By.xpath("html/body/div[3]/div[2]/div/div/ul/li[1]/a")).click();
}
driver.findElement(By.xpath(".//*[@id='page']/header/div/nav[1]/ul/li[3]/div/a")).click();
Thread.sleep(2000);
this.usename(Username);
this.password(Password);
this.submit();
}catch(Exception e)
{
System.out.println(e.getMessage());
}
}
}
搜索類
package Test_package_Ted_baker;
import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.interactions.Actions;
import org.openqa.selenium.support.ui.Select;
public class search {
WebDriver driver;
public void search_1() throws InterruptedException
{
WebElement Search_Item=driver.findElement(By.xpath("html/body/div[2]/header/div/nav[2]/section/ul[2]/li[1]/a/span[1]"));
Search_Item.click();
WebElement Seacrh_item_message=driver.findElement(By.id("search"));
WebElement Search_textbox=driver.findElement(By.xpath("html/body/div[2]/header/div/form/div[1]/ol/li[1]/input"));
Search_textbox.sendKeys("Watches");
driver.findElement(By.xpath("html/body/div[2]/header/div/form/div[1]/ol/li[2]/input")).click();
WebElement SearchResult_pagemessage=driver.findElement(By.xpath("html/body/div[2]/div/div/div[1]/div/h1"));
driver.findElement(By.xpath("html/body/div[2]/div/div/div[1]/div/div/div/span[1]")).click();
WebElement Item_Tobuy = driver.findElement(By.xpath("html/body/div[2]/div/div/div[2]/div[2]/div[1]/article/div[2]/header/div/h4/a"));
JavascriptExecutor jse1= (JavascriptExecutor)driver;
jse1.executeScript("window.scrollBy(0,400)", "");
Item_Tobuy.click();
driver.findElement(By.xpath("html/body/div[2]/div/div/div[2]/div[1]/section[2]/form/ol/li[2]/span/span/select")).click();
Select dropdown1=new Select(driver.findElement(By.id("qty")));
dropdown1.selectByVisibleText("1");
driver.findElement(By.id("qty")).click();
// driver.findElement(By.xpath("*[@classname='button add_to_cart major full_mobile colour_dark']/div[2]/div[1]/div/input[1]")).click();
// driver.findElement(By.xpath("//*[@id='add_to_cart_form']/div[2]/div[2]/a/span[1]/span[1]")).click();
driver.findElement(By.xpath("//input[contains(@class,'add_to_cart')]")).click();
Thread.sleep(1000);
Actions act=new Actions(driver);
WebElement My_cart_button=driver.findElement(By.xpath("html/body/div[2]/header/div/nav[2]/section/ul[2]/li[3]/a/span[2]"));
//WebElement My_cart_button=driver.findElement(By.xpath("//input[contains(@class,'My bag')]"));
WebElement View_bag_checkout_button=driver.findElement(By.xpath("html/body/div[2]/header/div/nav[2]/section/ul[2]/li[3]/div/ul/li/a"));
act.moveToElement(My_cart_button).moveToElement(View_bag_checkout_button).click().build().perform();
driver.findElement(By.xpath("html/body/div[2]/div/div/div/section/table/tbody/tr/td[2]/form/ul/li[2]/a")).click();
String Cart_empty_mesg=driver.findElement(By.xpath("html/body/div[1]/div/div/div/header/h1")).getText();
System.out.println(Cart_empty_mesg);
String Actual_cart_empty_msg="Your shopping bag is empty";
if(Cart_empty_mesg==Actual_cart_empty_msg)
{
System.out.println("Cart is empty, you can add product cart");
}
}
}