diff --git a/server/like-admin/src/main/java/com/mdd/admin/controller/channel/ChannelOaCallBackController.java b/server/like-admin/src/main/java/com/mdd/admin/controller/channel/ChannelOaCallBackController.java
new file mode 100644
index 00000000..205cd6c8
--- /dev/null
+++ b/server/like-admin/src/main/java/com/mdd/admin/controller/channel/ChannelOaCallBackController.java
@@ -0,0 +1,44 @@
+package com.mdd.admin.controller.channel;
+
+import com.mdd.admin.service.IChannelOaCallBackService;
+import com.mdd.common.aop.NotLogin;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import org.springframework.web.bind.annotation.*;
+
+import javax.annotation.Resource;
+
+
+@RestController
+@RequestMapping("api/channel/oa/callback")
+@Api(tags = "公众号服务器验证及消息回复")
+public class ChannelOaCallBackController {
+
+    @Resource
+    private IChannelOaCallBackService iChannelOaCallBackService;
+
+    @NotLogin
+    @GetMapping(produces = "text/plain;charset=utf-8")
+    @ApiOperation(value="公众号服务器地址验证")
+    public String authGet(@RequestParam(name = "signature", required = false) String signature,
+                          @RequestParam(name = "timestamp", required = false) String timestamp,
+                          @RequestParam(name = "nonce", required = false) String nonce,
+                          @RequestParam(name = "echostr", required = false) String echostr) {
+        return iChannelOaCallBackService.checkSignature(signature, timestamp, nonce, echostr);
+    }
+
+
+    @NotLogin
+    @PostMapping(produces = "application/xml; charset=UTF-8")
+    @ApiOperation(value="公众号消息回复")
+    public String post(@RequestBody String requestBody,
+                       @RequestParam("signature") String signature,
+                       @RequestParam("timestamp") String timestamp,
+                       @RequestParam("nonce") String nonce,
+                       @RequestParam(name = "encrypt_type", required = false) String encType,
+                       @RequestParam(name = "msg_signature", required = false) String msgSignature) {
+        return iChannelOaCallBackService.post(requestBody, signature, timestamp, nonce, encType, msgSignature);
+    }
+
+
+}
diff --git a/server/like-admin/src/main/java/com/mdd/admin/service/IChannelOaCallBackService.java b/server/like-admin/src/main/java/com/mdd/admin/service/IChannelOaCallBackService.java
new file mode 100644
index 00000000..2a42bab9
--- /dev/null
+++ b/server/like-admin/src/main/java/com/mdd/admin/service/IChannelOaCallBackService.java
@@ -0,0 +1,29 @@
+package com.mdd.admin.service;
+
+
+/**
+ * 公众号服务器回调
+ */
+public interface IChannelOaCallBackService {
+
+
+    /**
+     * 服务器验证
+     */
+    String checkSignature(String signature, String timestamp, String nonce, String echostr);
+
+
+    /**
+     * 消息回复
+     *
+     * @param requestBody
+     * @param signature
+     * @param timestamp
+     * @param nonce
+     * @param encType
+     * @param msgSignature
+     * @return
+     */
+    String post(String requestBody, String signature, String timestamp, String nonce, String encType, String msgSignature);
+
+}
diff --git a/server/like-admin/src/main/java/com/mdd/admin/service/impl/ChannelOaCallBackServiceImpl.java b/server/like-admin/src/main/java/com/mdd/admin/service/impl/ChannelOaCallBackServiceImpl.java
new file mode 100644
index 00000000..78d1e402
--- /dev/null
+++ b/server/like-admin/src/main/java/com/mdd/admin/service/impl/ChannelOaCallBackServiceImpl.java
@@ -0,0 +1,199 @@
+package com.mdd.admin.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.mdd.admin.service.IChannelOaCallBackService;
+import com.mdd.common.entity.OfficialReply;
+import com.mdd.common.exception.OperateException;
+import com.mdd.common.mapper.OfficialReplyMapper;
+import com.mdd.common.plugin.wechat.WxMnpDriver;
+import me.chanjar.weixin.common.api.WxConsts;
+import me.chanjar.weixin.mp.api.WxMpService;
+import me.chanjar.weixin.mp.bean.message.WxMpXmlMessage;
+import me.chanjar.weixin.mp.bean.message.WxMpXmlOutMessage;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.util.List;
+
+import static me.chanjar.weixin.common.api.WxConsts.EventType.SUBSCRIBE;
+
+@Service
+public class ChannelOaCallBackServiceImpl implements IChannelOaCallBackService {
+
+
+    @Resource
+    private OfficialReplyMapper officialReplyMapper;
+
+
+    /**
+     * 服务器验证
+     *
+     * @param signature 微信加密签名
+     * @param timestamp 时间戳
+     * @param nonce     随机数
+     * @param echostr   随机字符串
+     * @return String
+     */
+    @Override
+    public String checkSignature(String signature, String timestamp, String nonce, String echostr) {
+        WxMpService wxMpService = WxMnpDriver.oa();
+        if (wxMpService.checkSignature(timestamp, nonce, signature)) {
+            return echostr;
+        }
+        return "非法请求";
+    }
+
+
+    /**
+     * 消息回复
+     *
+     * @param requestBody  请求数据
+     * @param signature    微信加密签名
+     * @param timestamp    时间戳
+     * @param nonce        随机数
+     * @param encType      加密类型
+     * @param msgSignature 加密签名
+     * @return String
+     */
+    @Override
+    public String post(String requestBody, String signature, String timestamp, String nonce, String encType, String msgSignature) {
+
+        WxMpService wxMpService = WxMnpDriver.oa();
+        if (!wxMpService.checkSignature(timestamp, nonce, signature)) {
+            throw new IllegalArgumentException("非法请求，可能属于伪造的请求！");
+        }
+
+        String outMsg = null;
+        if (encType == null) {
+            // 明文传输的消息
+            WxMpXmlMessage inMessage = WxMpXmlMessage.fromXml(requestBody);
+            WxMpXmlOutMessage outMessage = this.msgHandler(inMessage);
+            if (outMessage == null) {
+                return "";
+            }
+            outMsg = outMessage.toXml();
+
+        } else if ("aes".equalsIgnoreCase(encType)) {
+            // aes加密的消息
+            WxMpXmlMessage inMessage = WxMpXmlMessage.fromEncryptedXml(
+                    requestBody,
+                    wxMpService.getWxMpConfigStorage(),
+                    timestamp,
+                    nonce,
+                    msgSignature);
+
+            WxMpXmlOutMessage outMessage = this.msgHandler(inMessage);
+            if (outMessage == null) {
+                return "";
+            }
+            outMsg = outMessage.toEncryptedXml(wxMpService.getWxMpConfigStorage());
+        }
+
+        return outMsg;
+    }
+
+    /**
+     * 消息处理
+     *
+     * @param wxMessage 微信回调信息
+     * @return WxMpXmlOutMessage
+     */
+    private WxMpXmlOutMessage msgHandler(WxMpXmlMessage wxMessage) {
+        try {
+            // 文本消息
+            if (wxMessage.getMsgType().equals(WxConsts.XmlMsgType.TEXT)) {
+                String msg = keyMsg(wxMessage);
+                return textBuild(msg, wxMessage);
+            }
+
+            // 事件消息
+            if (wxMessage.getMsgType().equals(WxConsts.XmlMsgType.EVENT)) {
+                if (wxMessage.getEvent().equals(SUBSCRIBE)) {
+                    // 关注回复
+                    String msg = subMsg();
+                    return textBuild(msg, wxMessage);
+                }
+            }
+        } catch (Exception e) {
+            throw new OperateException("公众号消息回调错误" + e.getMessage());
+        }
+        return null;
+    }
+
+    /**
+     * 返回文本消息
+     *
+     * @param content   文本内容
+     * @param wxMessage 微信回调信息
+     * @return WxMpXmlOutMessage
+     */
+    private WxMpXmlOutMessage textBuild(String content, WxMpXmlMessage wxMessage) {
+        return WxMpXmlOutMessage.TEXT().content(content)
+                .fromUser(wxMessage.getToUser()).toUser(wxMessage.getFromUser())
+                .build();
+    }
+
+    /**
+     * 关键词回复
+     *
+     * @param wxMessage 微信回调信息
+     * @return String
+     */
+    private String keyMsg(WxMpXmlMessage wxMessage) {
+        List<OfficialReply> oaReplyList = officialReplyMapper.selectList(
+                new QueryWrapper<OfficialReply>()
+                        .eq("reply_type", 2)
+                        .eq("is_delete", 0)
+                        .eq("status", 1)
+                        .orderByAsc("id"));
+
+        String msg = null;
+        for (OfficialReply oaReply : oaReplyList) {
+            // 全匹配
+            if (oaReply.getMatchingType() == 1 && oaReply.getKeyword().equals(wxMessage.getContent())) {
+                msg = oaReply.getContent();
+            }
+            // 模糊匹配
+            if (oaReply.getMatchingType() == 2 && wxMessage.getContent().contains(oaReply.getKeyword())) {
+                msg = oaReply.getContent();
+            }
+        }
+
+        return msg == null ? defaultMsg() : msg;
+    }
+
+    /**
+     * 默认回复
+     *
+     * @return String
+     */
+    private String defaultMsg() {
+        OfficialReply officialReply = officialReplyMapper.selectOne(new QueryWrapper<OfficialReply>()
+                .eq("reply_type", 3)
+                .eq("is_delete", 0)
+                .eq("status", 1)
+                .last("limit 1"));
+        if (officialReply == null) {
+            return null;
+        }
+        return officialReply.getContent();
+    }
+
+    /**
+     * 关注回复内容
+     *
+     * @return String
+     */
+    private String subMsg() {
+        OfficialReply officialReply = officialReplyMapper.selectOne(new QueryWrapper<OfficialReply>()
+                .eq("reply_type", 1)
+                .eq("is_delete", 0)
+                .eq("status", 1)
+                .last("limit 1"));
+        if (officialReply == null) {
+            return defaultMsg();
+        }
+        return officialReply.getContent();
+    }
+
+}