/**
* 客服功能 - 自动回复小程序APP链接
* Created by Lance on 2020/10/10 17:52
*/
@Slf4j
@Api(description = "客服功能")
@ApiPath("/api/wm-user/autoResponse")
@RequiredArgsConstructor(onConstructor = @__(@Autowired))
public class AutoResponseApi {
private final AutoResponseService autoResponseService;
@Value("${token.access_token}")
private final String access_token;
private final CrmUtils crmUtils; // 用于获取微信的 tocken
@ApiOperation("微信消息通知-GET请求校验（确认请求来自微信服务器）")
@GetMapping("/getSignature")
public String signature(HttpServletRequest request, HttpServletResponse response) {
//微信加密签名，signature结合了开发者填写的token参数和请求中的timestamp参数、nonce参数
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");
log.info("echostr>>>>>>>>>>" + echostr);
//通过检验signature对请求进行校验，若校验成功则原样返回echostr，否则接入失败
if (checkSignature(signature, timestamp, nonce)) {
log.info("echostr>>>>>>>>>>>>" + echostr);
return echostr;
}
log.info("客服消息验证url验证结果:{}", echostr);
return null;
}
@ApiOperation("微信消息通知-POST请求校验（确认请求来自微信服务器）")
@PostMapping("/postSignature")
public String response(HttpServletRequest request, HttpServletResponse response) {
try {
// 接收消息并返回消息
String result = acceptMessage(request, response);
log.info("接受消息并返回消息result>>>>>>" + result);
// 响应消息
PrintWriter out = response.getWriter();
log.info("out>>>>>>>>" + out);
out.print(result);
out.close();
} catch (Exception ex) {
log.error("微信帐号接口配置失败！" + ex.getMessage());
ex.printStackTrace();
}
return null;
}
/**
* 校验（确认请求来自微信服务器）
*
* @param signature
* @param timestamp
* @param nonce
* @return
*/
public boolean checkSignature(String signature, String timestamp, String nonce) {
String[] params = {access_token, timestamp, nonce};
log.info("params>>>>>>>>>>>>>" + Arrays.toString(params));
//1、将token、timestamp、nonce三个参数进行字典序排序
Arrays.sort(params);
//2、将三个参数字符串拼接成一个字符串
StringBuilder sb = new StringBuilder();
for (String param : params) {
sb.append(param);
}
log.info("字符串拼接>>>>>>>>>>>>>>>>>" + sb);
MessageDigest messageDigest = null;
String tpmStr = null;
try {
messageDigest = MessageDigest.getInstance("SHA-1");
log.info("md>>>>>>>>>>>>" + messageDigest);
//3、将三个参数字符串拼接成一个字符串进行sha1加密
byte[] digest = messageDigest.digest(sb.toString().getBytes());
log.info("digest>>>>>>>>>>>" + Arrays.toString(digest));
tpmStr = StringUtils.byteToHex(digest);
log.info("加密串>>>>>>>>>>>" + tpmStr);
} catch (Exception e) {
log.info("错误信息>>>>>>>>>>>>" + e.getMessage());
e.printStackTrace();
}
//4、将sha1加密后的字符串可与signature对比，标识该请求来源于微信
return tpmStr != null && tpmStr.equals(signature);
}
public String acceptMessage(HttpServletRequest request, HttpServletResponse response) {
//返回值
String result = "success";
try {
// 将请求、响应的编码均设置为UTF-8（防止中文乱码）
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
Map<String, String> requestMap = MessageUtils.parseXml(request);
log.info("requestMap>>>>>>>>>>" + requestMap);
// 发送者的openid
String fromUserName = requestMap.get("FromUserName");
// 小程序的原始ID
String toUserName = requestMap.get("ToUserName");
// 消息类型
String msgType = requestMap.get("MsgType");
// 文本消息内容
String content = requestMap.get("Content");
// 事件类型
String event = requestMap.get("Event");
log.info("fromUserName=" + fromUserName + ",toUserName=" + toUserName + ",msgType=" + msgType + ",content=" + content + ",event=" + event);
StringBuffer contentMessage = new StringBuffer();
if (msgType.equals("event")) {
contentMessage.append("欢迎进入威马客服咨询！人工服务请输入0").append("\n");
log.info(autoResponseService.sendCustomerTextMessage(fromUserName, contentMessage.toString(), crmUtils.getToken()));
} else if (msgType.equals("text")) {//文本消息
if (content.equals("0")) {
return autoResponseService.switchCustomerService(fromUserName, toUserName);
} else {
contentMessage.append("欢迎进入威马客服咨询！人工服务请输入0").append("\n");
log.info(autoResponseService.sendCustomerTextMessage(fromUserName, contentMessage.toString(), crmUtils.getToken()));
}
} else {
contentMessage.append("欢迎进入XXX客服咨询！人工服务请输入0").append("\n");
log.info(autoResponseService.sendCustomerTextMessage(fromUserName, contentMessage.toString(), crmUtils.getToken()));
}
} catch (Exception e) {
log.info("错误信息打印>>>>>>>>>>>" + e.getMessage());
e.printStackTrace();
}
return result;
}
}/**
* 客服功能 - 字符串转换
* Created by Lance on 2020/10/12 10:52
*/
@Slf4j
public class StringUtils {
/**
* 十六进制字节数组转为字符串
*
* @param hash
* @return
*/
public static String byteToHex(final byte[] hash) {
Formatter formatter = new Formatter();
for (byte b : hash) {
formatter.format("%02x", b);
}
String result = formatter.toString();
formatter.close();
return result;
}
}/**
* 客服功能 - 消息工具类
* Created by Lance on 2020/10/10 17:52
*/
public class MessageUtils {
public static Map<String, String> parseXml(HttpServletRequest request) throws Exception {
// 将解析结果存储在HashMap 中
Map<String, String> map = new HashMap<String, String>();
// 从request 中取得输入流
InputStream inputStream = request.getInputStream();
// 读取输入流
SAXReader reader = new SAXReader();
Document document = reader.read(inputStream);
// 得到xml 根元素
Element root = document.getRootElement();
// 得到根元素的所有子节点
List<Element> elementList = root.elements();
// 遍历所有子节点
for (Element e : elementList) {
map.put(e.getName(), e.getText());
}
// 释放资源
inputStream.close();
return map;
}
}/**
* 客服功能 - 消息发送请求工具类
* Created by Lance on 2020/10/10 17:52
*/
public class HttpUtils {
/**
* Get 发送的请求
* @param url
* @return
*/
public static String sendGetRequest(String url) {
RestTemplate restTemplate = new RestTemplate();
return restTemplate.getForObject(url, String.class);
}
public static String sendPostRequest(String url, HttpMethod method, HttpEntity<Map<String, Object>> httpEntity) {
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> response = restTemplate.exchange(url, method, httpEntity, String.class);
return response.getBody();
}
}/**
* 客服功能 - 自动回复小程序APP链接
* Created by Lance on 2020/10/10 11:03
*/
@Slf4j
@Service
public class AutoResponseService {
/**
* 人工服务
*
* @param fromUserName
* @param toUserName
* @param requestMap
* @return
*/
public String switchCustomerService(String fromUserName, String toUserName) {
String returnXml = "<xml>\n" +
" <ToUserName><![CDATA[" + fromUserName + "]]></ToUserName>\n" +
" <FromUserName><![CDATA[" + toUserName + "]]></FromUserName>\n" +
" <CreateTime>" + System.currentTimeMillis() / 1000 + "</CreateTime>\n" +
" <MsgType><![CDATA[transfer_customer_service]]></MsgType>\n" +
"</xml>";
log.info("人工服务result>>>>>>>" + returnXml);
return returnXml;
}
/**
* 文本消息
*
* @param openid
* @param text
* @param accessToken
* @return
*/
private static String SEND_URL = "https://api.weixin.qq.com/cgi-bin/message/custom/send";//固定发送地址
public String sendCustomerTextMessage(String openid, String text, String accessToken) throws IOException {
HashMap<String, Object> map_content = new HashMap<>();
map_content.put("content", text);
HashMap<String, Object> map = new HashMap<>();
map.put("touser", openid);
map.put("msgtype", "text");
map.put("text", map_content);
String content = JSON.toJSONString(map);
log.info("文本消息content" + content);
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity httpEntity = new HttpEntity(map, headers);
String str = HttpUtils.sendPostRequest(SEND_URL + "?access_token=" + accessToken, HttpMethod.POST, httpEntity);
log.info("文本消息str>>>>>>>>>>"+str);
return str;
}
}
