从网站抓取数据? [英] scrape data from website?

问题描述

我正在尝试抓取网站的数据，我为此编写了代码，我想在按钮单击事件中抓取数据，但是当我运行程序时，它会引发异常

Hi i am trying to scrape data of a site i did code for that i want to scraoe data on button click event but when i run my program it throws exception

异常是:java.lang.NoClassDefFoundError:com/google/common/base/Function

Exception is: java.lang.NoClassDefFoundError: com/google/common/base/Function

我如何删除此异常并运行我的程序

How can i remove this exception and work my program

这是我尝试过的代码

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.ui.Select;

public class GetData {

    public static void main(String args[]) throws InterruptedException {
        WebDriver driver = new FirefoxDriver();
        driver.get("http://www.upmandiparishad.in/commodityWiseAll.aspx");
        Thread.sleep(5000);
        // select barge
        new Select(driver.findElement(By.id("ctl00_ContentPlaceHolder1_ddl_commodity"))).selectByVisibleText("Jo");
        // click button
        Thread.sleep(3000);
        driver.findElement(By.id("ctl00_ContentPlaceHolder1_btn_show")).click();
        Thread.sleep(5000);

        //get only table tex
        WebElement findElement = driver.findElement(By.className("grid-view"));
        String htmlTableText = findElement.getText();
        // do whatever you want now, This is raw table values.
        System.out.println(htmlTableText);

        driver.close();
        driver.quit();

    }
}

预先感谢

推荐答案

希望这对您有所帮助.

    //select barge
    new Select(driver.findElement(By.id("ctl00_ContentPlaceHolder1_ddl_commodity"))).selectByVisibleText("Jo");

    String sDate = "12/04/2014"; //What date you want
    driver.findElement(By.id("ctl00_ContentPlaceHolder1_txt_rate")).sendKeys(sDate);

    driver.findElement(By.id("ctl00_ContentPlaceHolder1_btn_show")).click();
    Thread.sleep(3000);

    WebElement findElement = driver.findElement(By.id("ctl00_ContentPlaceHolder1_GridView1"));
    String htmlTableText = findElement.getText();
    // do whatever you want now, This is raw table values.
    System.out.println(htmlTableText);

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