先注册一个微信公众号;或者申请接口测试号来进行开发；
接口测试号申请链接：
https://mp./debug/cgi-bin/sandbox?t=sandbox/login
这里先介绍测试号的开发；
点击链接进入页面，会看到y一个二维码，用微信扫描后就会分配给你一个微信公众测试账号；
然后找到如下这个位置，点击“新增测试模板”按钮，填写
下面是相关代码;
@Testpublic void sendTemplate(){postTemplateMsg("appid","appSecret", "openId");//这里替换成你自己的信息}public String sendTemplateMessage(String openId){TemplateMsg tm=new TemplateMsg();tm.setTouser(openId);tm.setTemplate_id("模板Id");tm.setUrl("");//about data startMap<String,Object> m = new HashMap<String,Object>(); TemplateData first = new TemplateData(); first.setColor("#000000"); first.setValue("您好，您有一个流程待办需要处理:"); m.put("first", first); TemplateData keyword1 = new TemplateData(); keyword1.setColor("#000000"); keyword1.setValue("11111111111111"); m.put("keyword1", keyword1); TemplateData keyword2 = new TemplateData(); keyword2.setColor("#000000"); keyword2.setValue("爱你一万年"); m.put("keyword2", keyword2); TemplateData keyword3 = new TemplateData(); keyword3.setColor("#000000"); keyword3.setValue(".04.27 09:51:30"); m.put("keyword3", keyword3); TemplateData keyword4 = new TemplateData(); keyword4.setColor("#000000"); keyword4.setValue("不够"); m.put("keyword4", keyword4); TemplateData remark = new TemplateData(); remark.setColor("#000000"); remark.setValue("再加一万年"); m.put("remark", remark); //about data endtm.setData(m);String jsonString = JSONObject.fromObject(tm).toString();System.out.println("jsonString:"+jsonString);return jsonString;}/*** 发送模板消息* appId 公众账号的唯一标识* appSecret 公众账号的密钥* openId 用户标识*/public void postTemplateMsg(String appId, String appSecret, String openId){Token token = CommonUtil.getToken(appId, appSecret);String access_token = token.getAccessToken();String requestUrl = "https://api./cgi-bin/message/template/send?access_token="+access_token;System.out.println("requestUrl:"+requestUrl);String jsonString = sendTemplateMessage(openId);JSONObject jsonObject = CommonUtil.httpsRequest(requestUrl, "POST", jsonString);System.out.println("jsonObject="+jsonObject); if (null != jsonObject) { int errorCode = jsonObject.getInt("errcode"); if (0 == errorCode) { System.out.println("模板消息发送成功！"); } else { String errorMsg = jsonObject.getString("errmsg"); System.out.println("模板消息发送失败,错误码是:"+errorCode+",错误信息是:"+errorMsg); } } }
/*** 类名: CommonUtil </br>* 描述: 通用工具类 </br>* 发布版本：V1.0 </br>*/public class CommonUtil {// 凭证获取（GET）public final static String token_url = "https://api./cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET";/*** 发送https请求* * @param requestUrl 请求地址* @param requestMethod 请求方式（GET、POST）* @param outputStr 提交的数据* @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值)*/public static JSONObject httpsRequest(String requestUrl, String requestMethod, String outputStr) {JSONObject jsonObject = null;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 conn = (HttpsURLConnection) url.openConnection();conn.setSSLSocketFactory(ssf);conn.setDoOutput(true);conn.setDoInput(true);conn.setUseCaches(false);// 设置请求方式（GET/POST）conn.setRequestMethod(requestMethod);// 当outputStr不为null时向输出流写数据if (null != outputStr) {OutputStream outputStream = conn.getOutputStream();// 注意编码格式outputStream.write(outputStr.getBytes("UTF-8"));outputStream.close();}// 从输入流读取返回内容InputStream inputStream = conn.getInputStream();InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");BufferedReader bufferedReader = new BufferedReader(inputStreamReader);String str = null;StringBuffer buffer = new StringBuffer();while ((str = bufferedReader.readLine()) != null) {buffer.append(str);}// 释放资源bufferedReader.close();inputStreamReader.close();inputStream.close();inputStream = null;conn.disconnect();jsonObject = JSONObject.fromObject(buffer.toString());} catch (ConnectException ce) {System.out.println("连接超时："+ ce);} catch (Exception e) {System.out.println("https请求异常："+ e);}return jsonObject;}/*** 获取接口访问凭证* * @param appid 凭证* @param appsecret 密钥* @return*/public static Token getToken(String appid, String appsecret) {Token token = null;String requestUrl = token_url.replace("APPID", appid).replace("APPSECRET", appsecret);System.out.println("requestUrl:"+requestUrl);// 发起GET请求获取凭证JSONObject jsonObject = httpsRequest(requestUrl, "GET", null);if (null != jsonObject) {try {token = new Token();token.setAccessToken(jsonObject.getString("access_token"));token.setExpiresIn(jsonObject.getInt("expires_in"));} catch (JSONException e) {token = null;// 获取token失败System.out.println("获取token失败 errcode:"+jsonObject.getInt("errcode")+"errmsg:"+jsonObject.getString("errmsg"));}}return token;}/*** URL编码（utf-8）* @param source* @return*/public static String urlEncodeUTF8(String source) {String result = source;try {result = .URLEncoder.encode(source, "utf-8");} catch (UnsupportedEncodingException e) {e.printStackTrace();}return result;}public static void main(String args[]) {//https://1d488f5d.ngrok.io/WeiXinProject/String source="https://565b4dad.ngrok.io/WeChatPublicNumber/oauthServlet";System.out.println(CommonUtil.urlEncodeUTF8(source));}}
over!
