配置服务器信息
URL是后台回调接口地址,Token是为了验证回调信息的合法性的,EncodingAESKey随机生成即可
开发公众号配置校验回调开发
配置校验回调是以GET方式回调的,同消息事件回调是一个地址,只是请求方式不同。
如果验证成功,则响应回调请求的echostr值,否则啥也不返回。
代码示例:
/**
* 微信公众号配置校验
*
* @param appId
* @param request
* @param response
*/
@RequestMapping(value = "/webchat/{appId}", method = {RequestMethod.GET})
@ApiOperation(value="微信公众号配置校验回调", notes="微信公众号配置校验回调")
public void receiveOfficialMsgGet(@PathVariable("appId") String appId, HttpServletRequest request, HttpServletResponse response) {
logger.info("收到微信回调GET:{}", appId);
// 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");
Map<String, String[]> map = request.getParameterMap();
for (Map.Entry<String, String[]> entry : map.entrySet()) {
logger.info("{}={}", entry.getKey(), entry.getValue() != null ? entry.getValue()[0] : "");
}
// 获取公众号信息
SingleParamRequest<String> singleParamRequest = new SingleParamRequest<>();
singleParamRequest.setData(appId);
ServiceJsonBean<OfficialAccount> officialAccountJsonBean = weiXinOfficialAccountService.getOfficialAccountByAppId(singleParamRequest);
logger.info("获取到微信公众号信息:{}", JSONObject.toJSONString(officialAccountJsonBean));
String officialToken = "";
if (officialAccountJsonBean.getCode() == ErrorCode.SUCCESS.getCode() && officialAccountJsonBean.getData() != null) {
officialToken = officialAccountJsonBean.getData().getOfficialToken();
}
String curSign = SecurityUtils.encryptSHA1(officialToken, timestamp, nonce);
if (StringUtils.isEquals(signature, curSign) && StringUtils.isNotEmpty(echostr)) {
logger.info("验证成功!");
try {
response.getWriter().write(echostr);
} catch (IOException e) {
logger.error("response输出异常", e);
}
}
}
消息、事件回调
消息、事件回调跟校验回调是同一个接口地址,但是请求方式为POST
消息、事件会以xml格式的传输到后台,后台解析xml进行处理
/**
* 接收微信公众号消息或事件
*
* @param appId
* @param request
* @return
*/
@RequestMapping(value = "/webchat/{appId}", method = {RequestMethod.POST})
@ResponseBody
@ApiOperation(value="微信公众号消息或事件回调", notes="微信公众号消息或事件回调")
public void receiveOfficialMsgPost(@PathVariable("appId") String appId, HttpServletRequest request) {
logger.info("收到微信回调POST:{}", appId);
try {
BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream(), "UTF-8"));
String line = "";
StringBuffer buffer = new StringBuffer();
while ((line = br.readLine()) != null) {
buffer.append(line);
}
String notifyXml = buffer.toString();
logger.info("收到微信回调:{}", notifyXml);
Map<String, String> xmlMap = XmlUtils.xmlToMap(notifyXml);
// 发布事件
NormalMsgEvent normalMsgEvent = new NormalMsgEvent(applicationContext, xmlMap, appId);
applicationContext.publishEvent(normalMsgEvent);
} catch (Exception e) {
logger.error("微信消息回调异常", e);
}
}