微信开放平台的流程以及最终的全网发布

第一步：获取微信推送component_verify_ticket

		try {
			WXBizMsgCrypt wxBizMsgCrypt = new WXBizMsgCrypt(MyApp.token,
					MyApp.encodingAesKey, MyApp.OpenAppId);
			String postData = GetPostData(request);
			String msgSignature = request.getParameter("msg_signature");
			String timeStamp = request.getParameter("timestamp");
			String nonce = request.getParameter("nonce");
			String ret = wxBizMsgCrypt.decryptMsg(msgSignature, timeStamp,
					nonce, postData);
			// 得到component_verify_ticket
			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
			DocumentBuilder db = dbf.newDocumentBuilder();
			StringReader sr = new StringReader(ret);
			InputSource is = new InputSource(sr);
			Document document = db.parse(is);
			Element root = document.getDocumentElement();
			NodeList nodelist1 = root
					.getElementsByTagName("ComponentVerifyTicket");
			if (nodelist1.item(0) != null) { // 因为全网发布的时候，传过来的xml不含有ComponentVerifyTicket字段，直接使用会造成空指针
				MyApp.component_verify_ticket = nodelist1.item(0)
						.getTextContent(); // 有效时间10分钟
			}
			setPreState("component_verify_ticket",
					MyApp.component_verify_ticket); // 保存到文件中
		} catch (Exception e) {
			e.printStackTrace();
		}
		response.setContentType("text/plain; charset=utf-8");
		response.setHeader("Pragma", "no-cache");
		response.addHeader("Cache-Control", "must-revalidate");
		response.addHeader("Cache-Control", "no-cache");
		response.addHeader("Cache-Control", "no-store");
		response.setDateHeader("Expires", 0);
		response.setCharacterEncoding("utf-8");
		PrintWriter out = response.getWriter();
		out.print("success");
		out.flush();
		out.close();

	

第二步： 获取第三方平台component_access_token

String component_aceess_token_url = getComponentAccessTokenUrl;
			JSONObject jsonObject = new JSONObject();
			jsonObject.put("component_appid", MyApp.OpenAppId);
			jsonObject.put("component_appsecret", MyApp.OpenAppSecret);
			jsonObject.put("component_verify_ticket", MyApp.component_verify_ticket);
			String jsonStr = jsonObject.toString();
			System.out.println("提交给微信获取component_access_token的JSON:" + jsonStr);
			MyResponse myResponse = HttpUtil.request(
					component_aceess_token_url, false, jsonStr
							.getBytes("UTF-8"), true);

第三步：获取预授权码pre_auth_code

String pre_auth_code_url = getpreauthcodeUrl;
			pre_auth_code_url = pre_auth_code_url.replace("ACCESSTOKEN",
					componentAccessToken);
			JSONObject jsonObject = new JSONObject();
			jsonObject.put("component_appid", MyApp.OpenAppId);
			String jsonStr = jsonObject.toString();
			MyResponse myResponse = HttpUtil.request(pre_auth_code_url, false,
					jsonStr.getBytes("UTF-8"), true);
			String PreAuthCodeStr = myResponse.getString();
			JSONObject PreAuthCodeJson = JSONObject.fromObject(PreAuthCodeStr);
			value = PreAuthCodeJson.getString("pre_auth_code");
			System.out.println("预授权码：:" + value);

第四 步：使用授权码换取公众号的接口调用凭据和授权信息  和  

获取授权方的公众号帐号基本信息

		 //授权后回调URI，得到授权码（authorization_code）和过期时间
                 //获取（刷新）授权公众号的接口调用凭据（令牌）  
		String schoolId = request.getParameter("schoolId");
		String auth_code = request.getParameter("auth_code"); //授权码 有效期10分钟
		String authorization_info_url = getauthorization_info;
		authorization_info_url = authorization_info_url.replace("ACCESSTOKEN", GetPreAuthCode.getComponentAccessToken());
		JSONObject jsonObject = new JSONObject();
		jsonObject.put("component_appid", OpenAppId);
		jsonObject.put("authorization_code",auth_code);
		String jsonStr = jsonObject.toString();
		MyResponse myResponse = HttpUtil.request(authorization_info_url, false , jsonStr.getBytes("UTF-8"), true);
		String authorization_info = myResponse.getString();
		JSONObject object = JSONObject.parseObject(authorization_info);
		System.out.println("授权信息："+object);
		object = object.getJSONObject("authorization_info");
		String authorizer_appid = object.getString("authorizer_appid");//授权方appid
		String authorizer_refresh_token = object.getString("authorizer_refresh_token");//接口调用凭据刷新令牌
		//获取授权方的公众号帐号基本信息
		System.out.println("获取公众号基本信息。。。。。。");
		String getauthorization_info_url = get_authorizer_info;
		authorization_info_url = getauthorization_info_url.replace("ACCESSTOKEN", GetPreAuthCode.getComponentAccessToken());
		JSONObject jsonObject2 = new JSONObject();
		jsonObject2.put("component_appid", OpenAppId);
		jsonObject2.put("authorizer_appid",authorizer_appid);
		String jsonStr2 = jsonObject2.toString();
		MyResponse myResponse2 = HttpUtil.request(authorization_info_url, false , jsonStr2.getBytes("UTF-8"), true);
		String authorizer_info = myResponse2.getString();
		JSONObject object2 = JSONObject.parseObject(authorizer_info);
		System.out.println("公众号基本信息："+object2)