我正在尝试使用数组内的元素对JSON数据进行分组。
我认为 public class SampleClass {
private WebDriver driver;
@BeforeTest
public void setUp()
{
System.setProperty("webdriver.chrome.driver","C:\\Users\\AK5040691\\Desktop\\IE driver\\chromedriver.exe");
driver = new ChromeDriver();
driver.manage().window().maximize();
driver.navigate().to("http://executeautomation.com/blog/custom-testng-library-for-appium/#more-1562");
}
//@Parameters({"searchText1","searchText2"})
//@Test
public void searchText(String text1, String text2)
{
driver.manage().timeouts().implicitlyWait(60, TimeUnit.SECONDS);
driver.findElement(By.className("search-field")).sendKeys(text1);
driver.findElement(By.className("search-field")).clear();
driver.manage().timeouts().implicitlyWait(60, TimeUnit.SECONDS);
driver.findElement(By.className("search-field")).sendKeys(text2);
}
}
会奏效。但我需要编写自定义函数（reduce函数）而不是内置聚合运算符/表达式。有什么建议吗？
示例数据：
db.collection.aggregate我的代码：
{
"name" : "Person Name",
"age" : 50,
"expense" : [
{
"category" : "food",
"date" : "2017-01-01",
"amount" : 100
},
{
"category" : "travel",
"date" : "2017-01-02",
"amount" : 200
}
]
}
其中，db.collection.group({
key: { "expense.category": 1 },
initial: { total : 0 },
reduce: function( curr, result ) {
result.total += curr.amount;
}
})
对我不起作用。