没事分析了下网页版本微信的通训协议，并且用java实现了登录，发送和接收消息，以后可以用来集成到后台，作为一个业务通知系统，就是每次登录需要扫码比较费事。
登录步骤：
1.打开首页，分配一个随机用户id，
2.根据该id获取二维码图片。
3.微信客户端扫描该图片，在客户端确认登录。
4.浏览器不停的调用一个接口，如果返回登录成功，则调用登录接口
5.此时可以获取联系人列表，可以发送消息。然后不断调用同步接口。
6.如果同步接口有返回，则可以获取新消息，然后继续调用同步接口。
贴上源码，仅供参考：（需要下载apache httpclient以及json）
package wwx;
import java.util.LinkedList;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
public class WebWeixin {
String url_getuuid="https://login.weixin.qq.com/jslogin?appid=wx782c26e4c19acffb&redirect_uri=https%3A%2F%2Fwx.qq.com%2Fcgi-bin%2Fmmwebwx-bin%2Fwebwxnewloginpage&fun=new&lang=zh_CN&_={t}";
String url_login2weima="https://login.weixin.qq.com/qrcode/{}?t=webwx";
String url_check_login="https://login.weixin.qq.com/cgi-bin/mmwebwx-bin/login?uuid={}&tip=1&_={t}";
String url_init = "https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxinit?r={t}";
String url_contactlist = "https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxgetcontact?r={t}";
String url_synccheck = "https://webpush.weixin.qq.com/cgi-bin/mmwebwx-bin/synccheck?callback=jQuery18309326978388708085_1377482079946&r={t}&sid={0}&uin={1}&deviceid={2}&synckey={3}&_={t}";
String url_msglist = "https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxsync?sid={}&r={t}";
String url_sendMsg = "https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxsendmsg?sid={}&r={t}";
public static void main(String[] args) throws Exception{
new WebWeixin().init();
// new Test().getCookies("http://www.baidu.com");
// System.out.println(System.currentTimeMillis(););
}
class UInfo{
String wxuin;
String wxsid;
String webwxuvid;
String deviceid;
String syncKey;
JSONObject SyncKey;
String SKey;
JSONObject ujson;
String name; //帐号
String nickName;//昵称
boolean connect = false;
}
UInfo u = new UInfo();
Object wait = new Object();
LinkedList listeners = new LinkedList();
public void addListener(WxMsgListener lis){
this.listeners.add(lis);
}
//开始登录微信
public void start(){
//1.取得uuid
String getUUIDUrl = url_getuuid.replace("{t}", ""+System.currentTimeMillis());
String res = Utils.getUrl(getUUIDUrl);
String uuid = "";
Pattern pat = Pattern.compile("window.QRLogin.code = ([0-9]+); window.QRLogin.uuid = \"([0-9a-z]+)\";");
Matcher mat = pat.matcher(res);
if(mat.find()){
System.out.println(mat.group(1));
System.out.println(mat.group(2));
uuid = mat.group(2);
}
//2.取得登录二维码
String url_login = url_login2weima.replace("{}", uuid);
System.out.println("login_url=>"+url_login);
String img_path = Utils.dowmImg(url_login);
System.out.println("img_path=>"+img_path);
//3.轮询手机端是否已经扫描二维码并确认在Web端登录
String login_url = check_login(uuid);
Map cookies = Utils.getCookies(login_url);
System.out.println("cookies = "+cookies);
u.wxuin = cookies.get("wxuin");
u.wxsid = cookies.get("wxsid");
u.webwxuvid = cookies.get("webwxuvid");
u.deviceid = "e960817075982756";
//4.调用初始化url
JSONObject post = new JSONObject();
JSONObject BaseRequest = new JSONObject();
post.put("BaseRequest", BaseRequest);
BaseRequest.put("Uin", u.wxuin);
BaseRequest.put("Sid", u.wxsid);
BaseRequest.put("Skey", "");
BaseRequest.put("DeviceID", u.deviceid);
String intUrl = url_init.replace("{t}", ""+System.currentTimeMillis());
res = Utils.postUrl(intUrl, post.toString());
JSONObject init = JSONObject.parseObject(res);
JSONObject user = init.getJSONObject("User");
System.out.println("欢迎您："+user);
u.ujson = user;
u.name = user.getString("UserName");
u.nickName = user.getString("NickName");
JSONObject SyncKey = init.getJSONObject("SyncKey");
u.syncKey = getSyncKey(init);
u.SyncKey = SyncKey;
u.SKey = init.getString("SKey");
u.connect = true;
startSyncCheck();
u.connect = false;
// System.out.println(res);
}
public void init() throws Exception{
while(true){
Thread t = new Thread(){
public void run(){
try {
WebWeixin.this.start();
} catch (Exception e) {
e.printStackTrace();
u.connect = false;
}
synchronized (wait) {
wait.notify();
}
}
};
t.start();
Thread.sleep(300 * 1000);
if(!u.connect){
t.interrupt();
}else{
synchronized (wait) {
wait.wait();
}
}
}
}
//取得synckey
public String getSyncKey(JSONObject json){
JSONObject SyncKey = json.getJSONObject("SyncKey");
JSONArray Listarr = SyncKey.getJSONArray("List");
String synckey = "";
for(int i = 0;i 0){
// System.out.println("有"+count+"条新消息");
String msgurl = url_msglist.replace("{}", u.wxsid);
msgurl = msgurl.replace("{t}", ""+t);
JSONObject post = new JSONObject();
JSONObject BaseRequest = new JSONObject();
BaseRequest.put("Uin", u.wxuin);
BaseRequest.put("Sid", u.wxsid);
post.put("BaseRequest", BaseRequest);
post.put("SyncKey", u.SyncKey);
post.put("rr", System.currentTimeMillis());
res = Utils.postUrl(msgurl, post.toString());
// System.out.println(res);
JSONObject rj = JSONObject.parseObject(res);
u.SKey = rj.getString("SKey");
if(u.SKey.equals("")){
break;
}
JSONObject SyncKey = rj.getJSONObject("SyncKey");
u.syncKey = getSyncKey(rj);
u.SyncKey = SyncKey;
JSONArray AddMsgList = rj.getJSONArray("AddMsgList");
for(int i = 0;i getCookies(String url){
// try {
// CloseableHttpClient httpclient = HttpClients.createDefault();
// HttpGet httpget = new HttpGet(url);
// CloseableHttpResponse response = httpclient.execute(httpget, context);
// try {
// System.out.println(response);
//// System.out.println(context.getCookieStore());
// CookieStore cs = context.getCookieStore();
// Map map = new HashMap();
// for(Cookie c : cs.getCookies()){
// map.put(c.getName(), c.getValue());
// }
// return map;
// } finally {
// response.close();
// }
// } catch (ClientProtocolException e) {
// e.printStackTrace();
// } catch (IOException e) {
// e.printStackTrace();
// }
// return null;
// }
//
// //down img
// public static String dowmImg(String url){
// try {
// CloseableHttpClient httpclient = HttpClients.createDefault();
// HttpGet httpget = new HttpGet(url);
// CloseableHttpResponse response = httpclient.execute(httpget, context);
// try {
//// System.out.println(response);
// byte [] bs = EntityUtils.toByteArray(response.getEntity());
// File f =new File("img.png");
// OutputStream os = new FileOutputStream(f);
// os.write(bs);
// os.close();
//// return EntityUtils.toString(response.getEntity());
// return f.getAbsolutePath();
// } finally {
// response.close();
// }
// } catch (ClientProtocolException e) {
// e.printStackTrace();
// } catch (IOException e) {
// e.printStackTrace();
// }
// return null;
// }
// //http post
// public static String post(String url, Object ... kvs){
// try {
// List formparams = new ArrayList();
// for(int i = 0;i < kvs.length/2; i++){
// formparams.add(new BasicNameValuePair(""+kvs[2*i], ""+kvs[2*i + 1]));
// }
// UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams, Consts.UTF_8);
// HttpPost post = new HttpPost(url);
// post.setEntity(entity);
//
// CloseableHttpClient httpclient = HttpClients.createDefault();
// CloseableHttpResponse response = httpclient.execute(post, context);
// try {
//// System.out.println(response);
// return EntityUtils.toString(response.getEntity());
// } finally {
// response.close();
// }
// } catch (ClientProtocolException e) {
// e.printStackTrace();
// } catch (IOException e) {
// e.printStackTrace();
// }
// return null;
// }
//
// //http post
// public static String postString(String url, String str){
// try {
// StringEntity sentity = new StringEntity(str, Consts.UTF_8);
// HttpPost post = new HttpPost(url);
// post.setEntity(sentity);
//
// CloseableHttpClient httpclient = HttpClients.createDefault();
// CloseableHttpResponse response = httpclient.execute(post, context);
// try {
//// System.out.println(response);
// HttpEntity ent = response.getEntity();
// String res = "";
// try {
// res = EntityUtils.toString(ent, Charset.forName("UTF-8"));
// } catch (ParseException e) {
// e.printStackTrace();
// res = null;
// }
// return res;
// } finally {
// response.close();
// }
// } catch (ClientProtocolException e) {
// e.printStackTrace();
// } catch (IOException e) {
// e.printStackTrace();
// }
// return null;
// }
}