微信模板消息开发总结——7.26

需求：A管理员在微信端提交用户加入群组，给B高级管理员审核。

           B管理员审核成功后，微信公众号会发送一个消息给A管理员，提示新增成功。

微信后台模板消息接口：

 

官方文档：

        请求需要三个参数——

        touser：用户的微信openId

        template_id:模板消息id

        topcolor：字体颜色

        data：替换模板消息内的具体数据

代码——

接口端：

            …………

            String openId = null;
            String userName = null;
            if (jsonObject.containsKey("flag") && jsonObject.getInteger("flag") == 1) {
                // 获得提交人的信息
                User user = mbUserService.searchOpenIdById(id);
                if (user == null) {
                    logger.error("系统错误");
                } else {
                    // 得到提交人的openid 用户名
                    openId = user.getOpenId();
                    userName = user.getUserName();
                }
                // 审核成功之后，发送模板消息
                Template tem = new Template();
                tem.setTemplateId("E1P3fwW5GGSFdGraAuOjcVy-6xRNC2c78LKslYoumxk");
                tem.setTopColor("#00DD00");
                tem.setToUser(openId);
                // 模板消息具体url，没找到
                tem.setUrl("");
                List<TemplateParam> paras = new ArrayList<TemplateParam>();
                paras.add(new TemplateParam("OperaUser", userName, "#0044BB"));
                paras.add(new TemplateParam("UserTel", phone, "#0044BB"));
                paras.add(new TemplateParam("Group", "出租车司机", "#0044BB"));
                paras.add(new TemplateParam("Status", "成功", "#0044BB"));
                tem.setTemplateParamList(paras);
                // 获取accessToken
                String token = null;
                try {
                    token = WeiXinUtil.getAccessToken().getToken();
                } catch (Exception e) {
                    e.printStackTrace();
                }
                // 调用发送消息
                boolean result = sendTemplateMsg(token, tem);
                logger.info("模板消息发送结果：" + result);

工具类：

public class WeiXinUtil {
    
    @Value("${wx.appId}")
    private static String APPID;
    
    @Value("${wx.appsecret}")
    private static String APPSECRET;
    
    // 从微信后台拿到APPID和APPSECRET 并封装为常量
    // private static final String APPID = "wx93ee9c70c625f281";
    // private static final String APPSECRET = "93e787d23e2e1e5c45d1c7f5cdc6fe79";
    private static final String ACCESS_TOKEN_URL =
        "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET";
    
    /**
     * 编写Get请求的方法。但没有参数传递的时候，可以使用Get请求
     * 
     * @param url 需要请求的URL
     * @return 将请求URL后返回的数据，转为JSON格式，并return
     */
    public static JSONObject doGetStr(String url) throws ClientProtocolException, IOException {
        DefaultHttpClient client = new DefaultHttpClient();// 获取DefaultHttpClient请求
        HttpGet httpGet = new HttpGet(url);// HttpGet将使用Get方式发送请求URL
        JSONObject jsonObject = null;
        HttpResponse response = client.execute(httpGet);// 使用HttpResponse接收client执行httpGet的结果
        HttpEntity entity = response.getEntity();// 从response中获取结果，类型为HttpEntity
        if (entity != null) {
            String result = EntityUtils.toString(entity, "UTF-8");// HttpEntity转为字符串类型
            jsonObject = JSONObject.parseObject(result);// 字符串类型转为JSON类型
        }
        return jsonObject;
    }
    
    /**
     * 编写Post请求的方法。当我们需要参数传递的时候，可以使用Post请求
     * 
     * @param url 需要请求的URL
     * @param outStr 需要传递的参数
     * @return 将请求URL后返回的数据，转为JSON格式，并return
     */
    public static JSONObject doPostStr(String url, String outStr) throws ClientProtocolException, IOException {
        DefaultHttpClient client = new DefaultHttpClient();// 获取DefaultHttpClient请求
        HttpPost httpost = new HttpPost(url);// HttpPost将使用Get方式发送请求URL
        JSONObject jsonObject = null;
        httpost.setEntity(new StringEntity(outStr, "UTF-8"));// 使用setEntity方法，将我们传进来的参数放入请求中
        HttpResponse response = client.execute(httpost);// 使用HttpResponse接收client执行httpost的结果
        String result = EntityUtils.toString(response.getEntity(), "UTF-8");// HttpEntity转为字符串类型
        jsonObject = JSONObject.parseObject(result);// 字符串类型转为JSON类型
        return jsonObject;
    }
    
    /**
     * 获取AccessToken
     * 
     * @return 返回拿到的access_token及有效期
     */
    public static AccessToken getAccessToken() throws ClientProtocolException, IOException {
        AccessToken token = new AccessToken();
        String url = ACCESS_TOKEN_URL.replace("APPID", APPID).replace("APPSECRET", APPSECRET);// 将URL中的两个参数替换掉
        JSONObject jsonObject = doGetStr(url);// 使用刚刚写的doGet方法接收结果
        if (jsonObject != null) { // 如果返回不为空，将返回结果封装进AccessToken实体类
            token.setToken(jsonObject.getString("access_token"));// 取出access_token
            token.setExpireIn(jsonObject.getInteger("expires_in"));// 取出access_token的有效期
        }
        return token;
    }
}

发送模板消息调用方法：

 // 发送模板消息
    public static boolean sendTemplateMsg(String token, Template template) {
        
        boolean flag = false;
        
        String requestUrl = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=ACCESS_TOKEN";
        requestUrl = requestUrl.replace("ACCESS_TOKEN", token);
        
        JSONObject jsonResult = CommonUtil.httpsRequest(requestUrl, "POST", template.toJSON());
        if (jsonResult != null) {
            int errorCode = jsonResult.getInteger("errcode");
            String errorMessage = jsonResult.getString("errmsg");
            if (errorCode == 0) {
                flag = true;
            } else {
                System.out.println("模板消息发送失败:" + errorCode + "," + errorMessage);
                flag = false;
            }
        }
        return flag;
    }

发送消息时需要的CommonUtil

 
public class CommonUtil {
	
	public static JSONObject httpsRequest(String requestUrl, String requestMethod, String outputStr) { 
		
        JSONObject jsonObject = null;
        StringBuffer buffer = new StringBuffer();  
        try {  
            // 创建SSLContext对象，并使用我们指定的信任管理器初始化  
            TrustManager[] tm = { new MyX509TrustManager() };  
            SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");  
            sslContext.init(null, tm, new java.security.SecureRandom());  
            // 从上述SSLContext对象中得到SSLSocketFactory对象  
            SSLSocketFactory ssf = sslContext.getSocketFactory();  
  
            URL url = new URL(requestUrl);  
            HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();  
            httpUrlConn.setSSLSocketFactory(ssf);  
  
            httpUrlConn.setDoOutput(true);  
            httpUrlConn.setDoInput(true);  
            httpUrlConn.setUseCaches(false);  
            // 设置请求方式（GET/POST）  
            httpUrlConn.setRequestMethod(requestMethod);  
  
            if ("GET".equalsIgnoreCase(requestMethod)) {
            	 httpUrlConn.connect();  
            } 
               
  
            // 当有数据需要提交时  
            if (null != outputStr) {  
                OutputStream outputStream = httpUrlConn.getOutputStream();  
                // 注意编码格式，防止中文乱码  
                outputStream.write(outputStr.getBytes("UTF-8"));  
                outputStream.close();  
            }  
  
            // 将返回的输入流转换成字符串  
            InputStream inputStream = httpUrlConn.getInputStream();  
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");  
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);  
  
            String str = null;  
            while ((str = bufferedReader.readLine()) != null) {  
                buffer.append(str);  
            }  
            bufferedReader.close();  
            inputStreamReader.close();  
            // 释放资源  
            inputStream.close();  
            inputStream = null;  
            httpUrlConn.disconnect();  
            jsonObject = JSONObject.parseObject(buffer.toString());  
        } catch (ConnectException ce) {  
            ce.printStackTrace();
        } catch (Exception e) {  
            e.printStackTrace();
        }  
        return jsonObject;  
    }
	
    public static String httpRequest(String requestUrl, String requestMethod, String outputStr) { 
		
        
        StringBuffer buffer = new StringBuffer();  
        try {  
          
  
            URL url = new URL(requestUrl);  
            HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();  
           
  
            httpUrlConn.setDoOutput(true);  
            httpUrlConn.setDoInput(true);  
            httpUrlConn.setUseCaches(false);  
            // 设置请求方式（GET/POST）  
            httpUrlConn.setRequestMethod(requestMethod);  
  
            if ("GET".equalsIgnoreCase(requestMethod)) {
            	 httpUrlConn.connect();  
            } 
               
  
            // 当有数据需要提交时  
            if (null != outputStr) {  
                OutputStream outputStream = httpUrlConn.getOutputStream();  
                // 注意编码格式，防止中文乱码  
                outputStream.write(outputStr.getBytes("UTF-8"));  
                outputStream.close();  
            }  
  
            // 将返回的输入流转换成字符串  
            InputStream inputStream = httpUrlConn.getInputStream();  
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");  
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);  
  
            String str = null;  
            while ((str = bufferedReader.readLine()) != null) {  
                buffer.append(str);  
            }  
            bufferedReader.close();  
            inputStreamReader.close();  
            // 释放资源  
            inputStream.close();  
            inputStream = null;  
            httpUrlConn.disconnect();  
            //jsonObject = JSONObject.fromObject(buffer.toString());  
        } catch (ConnectException ce) {  
            ce.printStackTrace();
        } catch (Exception e) {  
            e.printStackTrace();
        }  
        return buffer.toString();  
    }
	public static String urlEncodeUTF8(String source){
		String result = source;
		try {
			result = java.net.URLEncoder.encode(source,"utf-8");
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
		return result;
	}
	
    public static String httpsRequestForStr(String requestUrl, String requestMethod, String outputStr) { 
		
        String result="";
        StringBuffer buffer = new StringBuffer();  
        try {
            // 创建SSLContext对象，并使用我们指定的信任管理器初始化  
            TrustManager[] tm = { new MyX509TrustManager() };  
            SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");  
            sslContext.init(null, tm, new java.security.SecureRandom());  
            // 从上述SSLContext对象中得到SSLSocketFactory对象  
            SSLSocketFactory ssf = sslContext.getSocketFactory();  
  
            URL url = new URL(requestUrl);  
            HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();  
            httpUrlConn.setSSLSocketFactory(ssf);  
  
            httpUrlConn.setDoOutput(true);  
            httpUrlConn.setDoInput(true);  
            httpUrlConn.setUseCaches(false);  
            // 设置请求方式（GET/POST）  
            httpUrlConn.setRequestMethod(requestMethod);  
  
            if ("GET".equalsIgnoreCase(requestMethod)) {
            	 httpUrlConn.connect();  
            } 
               
  
            // 当有数据需要提交时  
            if (null != outputStr) {  
                OutputStream outputStream = httpUrlConn.getOutputStream();  
                // 注意编码格式，防止中文乱码  
                outputStream.write(outputStr.getBytes("UTF-8"));  
                outputStream.close();  
            }  
  
            // 将返回的输入流转换成字符串  
            InputStream inputStream = httpUrlConn.getInputStream();  
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");  
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);  
  
            String str = null;  
            while ((str = bufferedReader.readLine()) != null) {  
                buffer.append(str);  
            }  
            bufferedReader.close();  
            inputStreamReader.close();  
            // 释放资源  
            inputStream.close();  
            inputStream = null;  
            httpUrlConn.disconnect();  
            result=buffer.toString();  
        } catch (ConnectException ce) {  
            ce.printStackTrace();
        } catch (Exception e) {  
            e.printStackTrace();
        }  
        return result;  
    }
}

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