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微信客服自动回复图片？

2019-10-10 分类：API 和组件 评论(0)

在调试微信客服自动回复图片时，所有都是按照文档要求开发，但是无法自动回复

首先：自动回复配置如下：

首先：自动回复配置如下：第二：验证加密（通过）：

第二：验证加密（通过）：

boolean isGet = request.getMethod().toLowerCase().equals("get");
       if (isGet) {
           // 微信加密签名
           String signature = request.getParameter("signature");
           // 时间戳
           String timestamp = request.getParameter("timestamp");
           // 随机数
           String nonce = request.getParameter("nonce");
           // 随机字符串
           String echostr = request.getParameter("echostr");
 
           // 通过检验signature对请求进行校验，若校验成功则原样返回echostr，表示接入成功，否则接入失败
           if (signature != null && WeChatUtil.checkSignature(signature, timestamp, nonce)) {
               logger.debug("signature == " + signature);
               try {
                   PrintWriter print = response.getWriter();
                   print.write(echostr);
                   print.flush();
               } catch (IOException e) {
                   logger.error("微信消息接收和token验证异常", e);
               }
           }
       }

第三：自动回复

自动回复先上传临时素材到回信服务，并获取mediaId

//先上传临时素材到微信服务
 
       String mediaId = uploadFileToWeChat(WeChatUtil.REQ_MESSAGE_TYPE_IMAGE);
 
  /**
    * 上传图片到微信服务
    *
    * @param
    * @return
    */
   @Override
   public String uploadFileToWeChat(String type) {
       String accessToken = weiXinToken.getAccessToken();
       System.out.println("token == " + accessToken);
       RestTemplate restTemplate = new RestTemplate();
       HttpHeaders headers = new HttpHeaders();
       headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
       File file = new File(IMAGE_PATH);
       if (!file.exists() || !file.isFile()) {
           return null;
       }
       StringBuilder sb = new StringBuilder();
       sb.append(weixinImageUpload)
               .append("access_token=")
               .append(accessToken)
               .append("&type=")
               .append(type);
 
       String mediaId = WeChatUtil.httpRequest(sb.toString(), file);
 
       return mediaId;
   }


    获取到mediaId后，然后自动回复开发

/**
        * 此处自动回复文本
        */
       TextMessageResponseVo textMessageResponseVo = new TextMessageResponseVo();
       textMessageResponseVo.setFromUserName(requestMessageMap.get("ToUserName"));
       textMessageResponseVo.setToUserName(requestMessageMap.get("FromUserName"));
       textMessageResponseVo.setMsgType("text");
       textMessageResponseVo.setCreateTime(System.currentTimeMillis() / 1000);
       textMessageResponseVo.setContent("你好");
 
 
       /**
        * 此处自动回复图片
        */
       ImageMessageResponseVo imageMessageResponseVo = new ImageMessageResponseVo();
       imageMessageResponseVo.setFromUserName(requestMessageMap.get("FromUserName"));
       imageMessageResponseVo.setToUserName(requestMessageMap.get("ToUserName"));
       imageMessageResponseVo.setMsgType("image");
       imageMessageResponseVo.setCreateTime(System.currentTimeMillis() / 1000);
       AutoAnswer autoAnswer = new AutoAnswer();
       autoAnswer.setMediaId(mediaId);
       imageMessageResponseVo.setImage(autoAnswer);
       System.out.println("textMessageResponseVo>>>>>>>>"+imageMessageResponseVo.toString());
       String result = WeChatUtil.messageToXml(textMessageResponseVo);
       System.out.println("result XML CDATA +++++++++++++++++++++++++" + result);
       return result;
 
 
 /**
    * 文本消息转换成xml
    */
   public static String messageToXml(TextMessageResponseVo textMessageResponseVo) {
       xstream.alias("xml", textMessageResponseVo.getClass());
       return xstream.toXML(textMessageResponseVo);
 
 
   }
 
   /**
    * 图片
    * @param imageMessageResponseVo
    * @return
    */
   public static String messageToXml(ImageMessageResponseVo imageMessageResponseVo) {
       xstream.alias("xml", imageMessageResponseVo.getClass());
       return xstream.toXML(imageMessageResponseVo);
 
 
   }
 
 
   /**
    * 扩展xstream使其支持CDATA
    */
   private static XStream xstream = new XStream(new XppDriver() {
       @Override
       public HierarchicalStreamWriter createWriter(Writer out) {
           return new PrettyPrintWriter(out) {
               // 对所有xml节点的转换都增加CDATA标记
               boolean cdata = true;
 
               @Override
               @SuppressWarnings("unchecked")
               public void startNode(String name, Class clazz) {
                   super.startNode(name, clazz);
               }
 
               @Override
               protected void writeText(QuickWriter writer, String text) {
                   if (cdata) {
                       writer.write("<![CDATA[");
                       writer.write(text);
                       writer.write("]]>");
                   } else {
                       writer.write(text);
                   }
               }
           };
       }
   });


最后，响应微信服务的是一串String的xml

//文本响应微信的xml
<xml>
  <ToUserName><![CDATA[onv1V4-zyxgliQlXbaBujrNT-ycs]]></ToUserName>
  <FromUserName><![CDATA[gh_dc0815388d0f]]></FromUserName>
  <CreateTime><![CDATA[1570614951]]></CreateTime>
  <MsgType><![CDATA[text]]></MsgType>
  <Content><![CDATA[你好]]></Content>
</xml>
  
  
//图片响应微信的xml
  
<xml>
 
  <ToUserName><![CDATA[onv1V4-zyxgliQlXbaBujrNT-ycs]]></ToUserName>
 
  <FromUserName><![CDATA[gh_dc0815388d0f]]></FromUserName>
 
  <CreateTime><![CDATA[1570670451]]></CreateTime>
 
  <MsgType><![CDATA[image]]></MsgType>
 
  <Image>
 
    <MediaId><![CDATA[ukM01FczEHwYUthTQ_Sf_6XNgI1_2lScqCFuIWOs8zQ8CGp0kgH98SS8B4SxdznU]]></MediaId>
 
  </Image>
 
</xml>
 



但是最后没有收到微信自动回复，请求各位大佬指教
；

网友回复

戏多多?：

检查下有没有拼错的单词~

Tyson Wu：

这是httpRequest方法

/**
 * @param requestUrl 微信上传临时素材的接口url
 * @param file       要上传的文件
 * @return String  上传成功后，微信服务器返回的消息
 * @desc ：微信上传素材的请求方法
 */
public static String httpRequest(String requestUrl, File file) {
    StringBuffer buffer = new StringBuffer();
 
    try {
        //1.建立连接
        URL url = new URL(requestUrl);
        HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();  //打开链接
 
        //1.1输入输出设置
        httpUrlConn.setDoInput(true);
        httpUrlConn.setDoOutput(true);
        httpUrlConn.setUseCaches(false); // post方式不能使用缓存
        //1.2设置请求头信息
        httpUrlConn.setRequestProperty("Connection", "Keep-Alive");
        httpUrlConn.setRequestProperty("Charset", "UTF-8");
        //1.3设置边界
        String BOUNDARY = "----------" + System.currentTimeMillis();
        httpUrlConn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
 
        // 请求正文信息
        // 第一部分：
        //2.将文件头输出到微信服务器
        StringBuilder sb = new StringBuilder();
        sb.append("--"); // 必须多两道线
        sb.append(BOUNDARY);
        sb.append("\r\n");
        sb.append("Content-Disposition: form-data;name=\"media\";filelength=\"" + file.length()
                + "\";filename=\"" + file.getName() + "\"\r\n");
        sb.append("Content-Type:application/octet-stream\r\n\r\n");
        byte[] head = sb.toString().getBytes("utf-8");
        // 获得输出流
        OutputStream outputStream = new DataOutputStream(httpUrlConn.getOutputStream());
        // 将表头写入输出流中：输出表头
        outputStream.write(head);
 
        //3.将文件正文部分输出到微信服务器
        // 把文件以流文件的方式 写入到微信服务器中
        DataInputStream in = new DataInputStream(new FileInputStream(file));
        int bytes = 0;
        byte[] bufferOut = new byte[1024];
        while ((bytes = in.read(bufferOut)) != -1) {
            outputStream.write(bufferOut, 0, bytes);
        }
        in.close();
        //4.将结尾部分输出到微信服务器
        byte[] foot = ("\r\n--" + BOUNDARY + "--\r\n").getBytes("utf-8");// 定义最后数据分隔线
        outputStream.write(foot);
        outputStream.flush();
        outputStream.close();
 
 
        //5.将微信服务器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();
 
 
    } catch (IOException e) {
        System.out.println("发送POST请求出现异常！" + e);
        e.printStackTrace();
    }
    //4.json字符串转对象：解析返回值，json反序列化
    String result = buffer.toString().replaceAll("[\\\\]", "");
    System.out.println("result:" + result);
    JSONObject resultJSON = JSONObject.parseObject(result);
    return resultJSON.getString("media_id");
}


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