Java笔记 #03# HtmlUnit爬虫

存档留用

（= 存档留着备用）

爬的是一个开放的自动回复机器人 API 网站 http://i.itpk.cn/。 结构 大致如下：

我做的事情就是【输入文字，点击按钮，爬取内容】，如上图所示。

package org.sample.service.impl;

import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlAnchor;
import com.gargoylesoftware.htmlunit.html.HtmlElement;
import com.gargoylesoftware.htmlunit.html.HtmlInput;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import org.sample.service.ThirdPartyRobot;

import java.io.IOException;

public class ThirdPartyRobotImpl implements ThirdPartyRobot {

    @Override
    public String getReplyByWords(String words) {
        String result = getReplyByWordsThroughMoLiRobot(words);
        return result;
    }

    private String getReplyByWordsThroughMoLiRobot(final String words) {
        // 打开浏览器 进入页面
        WebClient webClient = new WebClient();
//        webClient.getOptions().setJavaScriptEnabled(false);
        webClient.getOptions().setCssEnabled(false);
        webClient.getOptions().setUseInsecureSSL(false);
        HtmlPage page = null;
        try {
            page = webClient.getPage("http://i.itpk.cn/");
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }

        // 获取文本框 输入内容
        HtmlInput question = (HtmlInput) page.getElementById("question");
        question.setValueAttribute(words);
//        System.out.println(question.asText());

        // 获取按钮 点击按钮
        HtmlAnchor getAnswer = page.getAnchorByText("普通提问");
        try {
            getAnswer.click();
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
//        List<HtmlAnchor> Anchors = page.getAnchors();
//        for (HtmlAnchor x : getAnswer) {
//            System.out.println(x.getHrefAttribute());
//            System.out.println(x.asText());
//        }

        try {
            Thread.sleep(300);
        } catch (InterruptedException e) {
            e.printStackTrace();
            return null;
        }

        // 获取结果文本
        HtmlElement reply = (HtmlElement) page.getElementById("reply");
        String replyText = reply.asText();
        // 关闭浏览器
        webClient.close();

        return replyText;
    }
}