個人實現的 java實現京東登入  花了好久才弄明白 分享下 

jar:

jsoup-1.6.0.jar

httpcore-4.4.1.jar

httpclient-4.4.1.jar

commons-io-2.2.jar

commons-logging-1.2.jar

package com.hzq.service;

import java.io.File;
import java.net.URI;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

import org.apache.commons.io.FileUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.BasicCookieStore;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import org.junit.Test;

import com.hzq.util.ReadProp;

public class Login {
	private String url = "https://passport.jd.com/uc/login?ltype=logout";
	private String logInurl = "https://passport.jd.com/uc/loginService";
	private String showAuthCodeUrl = "https://passport.jd.com/uc/showAuthCode?r="
			+ Math.random() + "&version=2015";
	private String AuthImgSrc = "";
	private Map<String, String> paramMap=null;
	private static String LOGIN_NAME = "";
	private static String LOGIN_PSW = "";
	private static String AuthCodeImgPath = "";
	static {
		//讀取配置檔案  使用者名稱 密碼 驗證碼儲存路徑
		LOGIN_NAME = ReadProp.getInstance().Read("login", "LOGIN_NAME");
		LOGIN_PSW = ReadProp.getInstance().Read("login", "LOGIN_PSW");
		AuthCodeImgPath = ReadProp.getInstance().Read("login",
				"AuthCodeImgPath");
	}

	
	public boolean doLogin() throws Exception {

		BasicCookieStore cookieStore = new BasicCookieStore();
		CloseableHttpClient httpclient = HttpClients.custom()
				.setDefaultCookieStore(cookieStore).build();
		String rs = "";
		// 獲取表單引數
		try {
			paramMap = new HashMap<>();
			HttpGet httpget = new HttpGet(url);
			CloseableHttpResponse response1 = httpclient.execute(httpget);
			try {
				HttpEntity entity = response1.getEntity();
				String content = EntityUtils.toString(entity);
				EntityUtils.consume(entity);
				Document doc = Jsoup.parse(content);
				paramMap = getMapfromDoc(doc);
				AuthImgSrc = getImgsrcFromDoc(doc);
			} finally {
				response1.close();
			}

			// 2顯示驗證碼     TODO 有沒有好像都一樣
//			HttpUriRequest showAuthCode = RequestBuilder.post()
//					.setUri(new URI(showAuthCodeUrl))
//					.addParameter("loginName", LOGIN_NAME).build();
//			CloseableHttpResponse response2 = httpclient.execute(showAuthCode);
//			try {
//				HttpEntity entity = response2.getEntity();
//				EntityUtils.consume(entity);
//			} finally {
//				response2.close();
//			}

			// 3 獲取驗證碼圖片 並儲存到指定路徑
			RequestBuilder builder = RequestBuilder.get()
					.setUri(new URI(AuthImgSrc + "&yys=" + new Date().getTime()));
			SetHeradersForAuthImg(builder);
			HttpUriRequest getAuthCode = builder.build();
			CloseableHttpResponse response3 = httpclient.execute(getAuthCode);
			try {
				HttpEntity entity = response3.getEntity();
				FileUtils.copyInputStreamToFile(entity.getContent(), new File(
						AuthCodeImgPath));
				EntityUtils.consume(entity);
			} finally {
				response3.close();
			}
			// 4 執行登入
			URI uri = new URI(logInurl + "?uuid=" + paramMap.get("uuid")
					+ "<ype=logout" + "&r=" + Math.random() + "&version=2015");
			RequestBuilder builder2 = RequestBuilder.post()
					.setUri(uri);
			setHeadersForLogIn(builder2);
			System.out.println("輸入驗證碼");
			Scanner in = new Scanner(System.in);
			String code = in.next();
			paramMap.put("authcode", code);
			//POST 引數
			for (Map.Entry<String, String> entry : paramMap.entrySet()) {
					builder2.addParameter(entry.getKey(), entry.getValue());
			}
			HttpUriRequest login = builder2.build();
			CloseableHttpResponse response4 = httpclient.execute(login);
			try {
				HttpEntity entity = response4.getEntity();
				rs = EntityUtils.toString(entity);
				EntityUtils.consume(entity);
			} finally {
				response4.close();
			}
			
		} finally {
			httpclient.close();
		}
		
		for(Cookie cookie:cookieStore.getCookies()){
			System.out.println(String.format("cookie鍵:%s,cookie值:%s,cookie路徑:%s",cookie.getName(),cookie.getValue(),cookie.getPath()));
		}
		
		System.out.println(rs);
		if (rs.contains("emptyAuthcode")
				|| rs.contains("302")) {
			System.out.println("登入失敗!!驗證碼有問題");
		} else {
			System.err.println("登入成功!!好爽啊  再登一次");
			return true;
		}
		return false;
	}

	public static Map<String, String> getMapfromDoc(Document doc) {
		Map<String, String> map = new HashMap<>();

		Elements e = doc.getElementsByTag("form");

		Elements ele = e.select("input");
		for (Element element : ele) {
			map.put(element.attr("name"), element.attr("value"));
		}
		map.put("loginname", LOGIN_NAME);
		map.put("loginpwd", LOGIN_PSW);
		map.put("nloginpwd", LOGIN_PSW);

		return map;
	}

	public static String getImgsrcFromDoc(Document doc) {

		Elements e = doc.getElementsByTag("img");
		for (Element element : e) {
			if (!"".equals(element.attr("src2")))
				return element.attr("src2");
		}

		return "";
	}
	
	/**登入的請求頭**/
	public static void setHeadersForLogIn(RequestBuilder builder){
		builder.setHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
		builder.setHeader("Accept-Encoding", "gzip, deflate, sdch");
		builder.setHeader("Accept-Language", "zh-CN,zh;q=0.8,en-US;q=0.6,en;q=0.4");
		builder.setHeader("Connection", "keep-alive");
		builder.setHeader("Host", "passport.jd.com");
		builder.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36");
	}
	
	/**請求圖片驗證碼的請求頭**/
	public static void SetHeradersForAuthImg(RequestBuilder builder){
		builder.setHeader("Accept", "image/webp,*/*;q=0.8");
		builder.setHeader("Accept-Encoding", "gzip, deflate, sdch");
		builder.setHeader("Accept-Language", "zh-CN,zh;q=0.8,en-US;q=0.6,en;q=0.4");
		builder.setHeader("Connection", "keep-alive");
		builder.setHeader("Host", "authcode.jd.com");
		builder.setHeader("Referer", "https://passport.jd.com/uc/login?ltype=logout");//必須。因為沒弄這個浪費了很長時間
		builder.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36");
	}

	public static void main(String[] args) throws Exception {
		while (true) {
			if (new Login().doLogin()) {
//				System.exit(0);
			}
			Thread.sleep(500L);
		}
	}
}