您可以构建通用Web元素的Page对象（只是发明了这个名称:)）-每个CWE都代表一个在不同页面上使用的“小部件”。在您的示例中，这将是某种“日期”小部件-
它包含年，月和日。基本上它将是一个页面对象。
PageFactory要求在
@FindBy注释中使用字符串常量。
为了解决此限制，我们创建了自己
ElementLocator的。
您可以
DateWidget在测试中使用：
....DateWidget widget = new DateWidget(driver, "yearId", "monthId", "dayId");....public void testYearNumeric() { widget.setYear("aa"); widget.submit(); //Logic to determine Error message shows up // ... and day widget.setDay("bb"); widget.submit(); //Logic to determine Error message shows up }的
DateWidget类，它包含自定义定位器和注释解析器是：
package pagefactory.test;import java.lang.reflect.Field;import org.openqa.selenium.By;import org.openqa.selenium.WebDriver;import org.openqa.selenium.WebElement;import org.openqa.selenium.support.FindBy;import org.openqa.selenium.support.PageFactory;import org.openqa.selenium.support.pagefactory.Annotations;import org.openqa.selenium.support.pagefactory.ElementLocator;import org.openqa.selenium.support.pagefactory.ElementLocatorFactory;import org.openqa.selenium.support.ui.ExpectedCondition;import org.openqa.selenium.support.ui.Wait;import org.openqa.selenium.support.ui.WebDriverWait;public class DateWidget { // These constants are used to identify that they should be changed to the actual IDs private static final String YEAR_ID = "$YEAR_ID$"; private static final String MONTH_ID = "$MONTH_ID$"; private static final String DAY_ID = "$DAY_ID$"; // Elements whose ids will be replaced during run-time @FindBy(id = YEAR_ID) private WebElement year; @FindBy(id = MONTH_ID) private WebElement month; @FindBy(id = DAY_ID) private WebElement day; // The ids of the elements private String yearId; private String monthId; private String dayId; public DateWidget(WebDriver driver, String yearId, String monthId, String dayId) { this.yearId = yearId; this.monthId = monthId; this.dayId = dayId; PageFactory.initElements(new CustomLocatorFactory(driver, 15), this); } public String getYear() { return year.getValue(); } public void setYear(String year) { setValue(this.year, year); } public String getMonth() { return month.getValue(); } public void setMonth(String month) { setValue(this.month, month); } public String getDay() { return day.getValue(); } public void setDay(String day) { setValue(this.day, day); } public void submit() { year.submit(); } private void setValue(WebElement field, String value) { field.clear(); field.sendKeys(value); } private class CustomLocatorFactory implements ElementLocatorFactory { private final int timeOutInSeconds; private WebDriver driver; public CustomLocatorFactory(WebDriver driver, int timeOutInSeconds) { this.driver = driver; this.timeOutInSeconds = timeOutInSeconds; } public ElementLocator createLocator(Field field) { return new CustomElementLocator(driver, field, timeOutInSeconds); } } private class CustomElementLocator implements ElementLocator { private WebDriver driver; private int timeOutInSeconds; private final By by; public CustomElementLocator(WebDriver driver, Field field, int timeOutInSeconds) { this.driver = driver; this.timeOutInSeconds = timeOutInSeconds; CustomAnnotations annotations = new CustomAnnotations(field); this.by = annotations.buildBy(); } @Override public WebElement findElement() { ExpectedCondition<Boolean> e = new ExpectedCondition<Boolean>() { public Boolean apply(WebDriver d) { d.findElement(by); return Boolean.TRUE; } }; Wait<WebDriver> w = new WebDriverWait(driver, timeOutInSeconds); w.until(e); return driver.findElement(by); } } private class CustomAnnotations extends Annotations { public CustomAnnotations(Field field) { super(field); } @Override protected By buildByFromShortFindBy(FindBy findBy) { if (!"".equals(findBy.id())) { String id = findBy.id(); if (id.contains(YEAR_ID)) { id = id.replace(YEAR_ID, yearId); return By.id(id); } else if (id.contains(MONTH_ID)) { id = id.replace(MONTH_ID, monthId); return By.id(id); } else if (id.contains(DAY_ID)) { id = id.replace(DAY_ID, dayId); return By.id(id); } } return super.buildByFromShortFindBy(findBy); } }}
