diff --git a/adc-da-login/src/main/java/com/adc/da/login/rest/LoginRestController.java b/adc-da-login/src/main/java/com/adc/da/login/rest/LoginRestController.java
index 0edb2ef..1ebdb06 100644
--- a/adc-da-login/src/main/java/com/adc/da/login/rest/LoginRestController.java
+++ b/adc-da-login/src/main/java/com/adc/da/login/rest/LoginRestController.java
@@ -1,5 +1,6 @@
 package com.adc.da.login.rest;
 
+import cn.hutool.core.util.StrUtil;
 import com.adc.da.log.annotation.BusinessLog;
 import com.adc.da.login.entity.OnlineUserEO;
 import com.adc.da.login.security.SystemAuthorizingRealm;
@@ -507,6 +508,20 @@ public class LoginRestController {
         return Result.success();
     }
 
+    @GetMapping("/ssoLogin")
+    @ResponseBody
+    @ApiOperation(value = "SSO，根据Code返回用户信息")
+    public ResponseMessage ssoLogin(String code, HttpServletRequest request){
+        if (StrUtil.isBlank(code)) {
+            return Result.error("无法单点登录，code为空");
+        }
+        String username = userService.ssoLogin(code);
+
+        UsernamePasswordToken token = new UsernamePasswordToken(username);
+
+        return login(request, token);
+    }
+
     public static void main(String[] args) throws Exception {
         String decrypt = EncryptUtil.decrypt("F6lnqMmPc/zkC8LcdSnDIMkH3Pt3DC1/53blM5P0FkM=");
         System.out.println(decrypt);
diff --git a/adc-da-sys/src/main/java/com/adc/da/sys/constant/SsoConstants.java b/adc-da-sys/src/main/java/com/adc/da/sys/constant/SsoConstants.java
new file mode 100644
index 0000000..c9f3764
--- /dev/null
+++ b/adc-da-sys/src/main/java/com/adc/da/sys/constant/SsoConstants.java
@@ -0,0 +1,55 @@
+package com.adc.da.sys.constant;
+
+/**
+ * @author: CaiHaohan
+ * @Date: 2023/5/17 14:02
+ * @Description: SSO单点登录所需常量
+ */
+public class SsoConstants {
+
+    /**
+     * 获取Token的路径
+     */
+    public static final String GET_TOKEN_PATH = "esc-sso/oauth2.0/accessToken?";
+
+    /**
+     * 获取Token的路径
+     */
+    public static final String GET_USERINFO_PATH = "esc-sso/oauth2.0/profile?";
+
+    /**
+     * 应用注册ID
+     */
+    public static final String CLIENT_ID = "client_id=";
+
+    /**
+     * 属性常量
+     */
+    public static final String GRANT_TYPE = "grant_type=";
+
+    /**
+     * 属性常量
+     */
+    public static final String AUTHORIZATION_CODE = "authorization_code";
+
+    /**
+     * 接受到的code值
+     */
+    public static final String CODE = "code=";
+
+    /**
+     * client_secret
+     */
+    public static final String CLIENT_SECRET = "client_secret=";
+
+    /**
+     * 应用回调地址,需要http格式化
+     */
+    public static final String REDIRECT_URI = "redirect_uri=";
+
+    /**
+     * 获取的token的值 必须
+     */
+    public static final String ACCESS_TOKEN = "access_token=";
+
+}
diff --git a/adc-da-sys/src/main/java/com/adc/da/sys/service/UserEOServiceImpl.java b/adc-da-sys/src/main/java/com/adc/da/sys/service/UserEOServiceImpl.java
index e616a1a..7c17193 100644
--- a/adc-da-sys/src/main/java/com/adc/da/sys/service/UserEOServiceImpl.java
+++ b/adc-da-sys/src/main/java/com/adc/da/sys/service/UserEOServiceImpl.java
@@ -1,5 +1,9 @@
 package com.adc.da.sys.service;
 
+import cn.hutool.core.util.StrUtil;
+import cn.hutool.http.HttpRequest;
+import cn.hutool.json.JSONUtil;
+import com.adc.da.sys.constant.SsoConstants;
 import com.adc.da.sys.constant.SysConstants;
 import com.adc.da.sys.constant.UserBelongEnum;
 import com.adc.da.sys.dao.mysql.UserEODao;
@@ -10,12 +14,15 @@ import com.adc.da.sys.service.iservice.IUserEoService;
 import com.adc.da.sys.util.EncryptUtil;
 import com.adc.da.sys.vo.UserImportVO;
 import com.adc.da.sys.vo.UserVO;
+import com.adc.da.sys.vo.iam.SsoResponse;
+import com.adc.da.sys.vo.iam.SsoUserInfoResponse;
 import com.adc.da.util.exception.AdcDaBaseException;
 import com.adc.da.util.utils.CollectionUtils;
 import com.adc.da.util.utils.StringUtils;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
@@ -36,6 +43,7 @@ import java.util.stream.Collectors;
  */
 @Service("userEOService")
 @Transactional
+@Slf4j
 public class UserEOServiceImpl implements IUserEoService {
 
 
@@ -54,6 +62,15 @@ public class UserEOServiceImpl implements IUserEoService {
     @Resource
     private RoleEOService roleEOService;
 
+    @Value("${sso.clientId}")
+    private String ssoClientId;
+
+    @Value("${sso.clientSecret}")
+    private String ssoClientSecret;
+
+    @Value("${sso.url}")
+    private String ssoUrl;
+
 
     /**
      * 获取角色信息，用户名，用于新增用户校验
@@ -342,6 +359,64 @@ public class UserEOServiceImpl implements IUserEoService {
         return dao.getOwnLeader(orgEOList);
     }
 
+    /**
+     * 获取【通过Code获取accessToken接口】的Url
+     * @param code code
+     * @return Url
+     */
+    private String getTokenByCodeUrl(String code) {
+        return ssoUrl + SsoConstants.GET_TOKEN_PATH
+                + SsoConstants.GRANT_TYPE + SsoConstants.AUTHORIZATION_CODE + "&"
+                + SsoConstants.CLIENT_ID + ssoClientId + "&"
+                + SsoConstants.CLIENT_SECRET + ssoClientSecret + "&"
+                + SsoConstants.CODE + code + "&"
+                + SsoConstants.REDIRECT_URI + "XXX";
+    }
+
+    /**
+     * 获取【通过accessToken获取用户信息接口】的Url
+     * @param accessToken accessToken
+     * @return Url
+     */
+    private String getUserInfoByTokenUrl(String accessToken) {
+        return ssoUrl + SsoConstants.GET_USERINFO_PATH
+                                        + SsoConstants.ACCESS_TOKEN + accessToken;
+    }
+
+    @Override
+    public String ssoLogin(String code) {
+        //向SSO服务器发送code获取用户token
+        String getTokenByCodeUrl = getTokenByCodeUrl(code);
+
+        String tokenResponse = HttpRequest.post(getTokenByCodeUrl).execute().body();
+
+        SsoResponse tokenResponseObject = JSONUtil.toBean(tokenResponse, SsoResponse.class);
+        //获取返回值中的token
+        String accessToken = tokenResponseObject.getAccess_token();
+
+        //向SSO服务器发送token获取用户数据
+        if (StrUtil.isBlank(accessToken)) {
+            log.info("通过code获取accessToken失败");
+            throw new AdcDaBaseException("通过code获取accessToken失败");
+        }
+
+        String getUserInfoByTokenUrl = getUserInfoByTokenUrl(accessToken);
+        String userInfoResponse = HttpRequest.get(getUserInfoByTokenUrl).execute().body();
+
+        SsoUserInfoResponse userInfoResponseObject = JSONUtil.toBean(userInfoResponse, SsoUserInfoResponse.class);
+
+        //获取返回值中的用户id
+        String userId = userInfoResponseObject.getId();
+
+        //根据用户id取出用户名
+        UserEO user = getUserById(userId);
+        if (user == null) {
+            log.info("根据用户id取出用户失败");
+            throw new AdcDaBaseException("根据用户id取出用户失败");
+        }
+        return user.getUsname();
+    }
+
     void checkExcel(List<UserImportVO> list) {
         if (CollectionUtils.isEmpty(list)) {
             throw new AdcDaBaseException("数据不能为空");
diff --git a/adc-da-sys/src/main/java/com/adc/da/sys/service/iservice/IUserEoService.java b/adc-da-sys/src/main/java/com/adc/da/sys/service/iservice/IUserEoService.java
index 35824d6..1732fed 100644
--- a/adc-da-sys/src/main/java/com/adc/da/sys/service/iservice/IUserEoService.java
+++ b/adc-da-sys/src/main/java/com/adc/da/sys/service/iservice/IUserEoService.java
@@ -70,4 +70,12 @@ public interface IUserEoService {
     UserVO getUserByIdNodel(String userId);
 
     List<UserEO> getOwnLeader(List<OrgEO> orgEOList);
+
+    /**
+     * IAM单点登录逻辑
+     *
+     * @param code
+     * @return
+     */
+    String ssoLogin(String code);
 }
diff --git a/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/SsoResponse.java b/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/SsoResponse.java
new file mode 100644
index 0000000..cd566b7
--- /dev/null
+++ b/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/SsoResponse.java
@@ -0,0 +1,26 @@
+package com.adc.da.sys.vo.iam;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * @author: CaiHaohan
+ * @Date: 2023/5/17 14:22
+ * @Description:
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class SsoResponse {
+
+    /**
+     * 返回的token 必须
+     */
+    private String access_token;
+
+    /**
+     * 刷新token(在应用配置里，打开【token刷新】的开关，即可返回该参数) 非必须
+     */
+    private String refresh_token;
+}
diff --git a/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/SsoUserInfo.java b/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/SsoUserInfo.java
new file mode 100644
index 0000000..ea75078
--- /dev/null
+++ b/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/SsoUserInfo.java
@@ -0,0 +1,25 @@
+package com.adc.da.sys.vo.iam;
+
+import cn.hutool.system.UserInfo;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * @author: CaiHaohan
+ * @Date: 2023/5/17 15:04
+ * @Description:
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class SsoUserInfo {
+
+    private String account_no;
+
+    private String token_expired;
+
+    private String token_gtime;
+
+    private UserDetailInfo user_detail_info;
+}
diff --git a/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/SsoUserInfoResponse.java b/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/SsoUserInfoResponse.java
new file mode 100644
index 0000000..698f7e2
--- /dev/null
+++ b/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/SsoUserInfoResponse.java
@@ -0,0 +1,23 @@
+package com.adc.da.sys.vo.iam;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * @author: CaiHaohan
+ * @Date: 2023/5/17 15:08
+ * @Description:
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class SsoUserInfoResponse {
+
+    /**
+     * 用户id
+     */
+    private String id;
+
+    private SsoUserInfo attributes;
+}
diff --git a/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/UserDetailInfo.java b/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/UserDetailInfo.java
new file mode 100644
index 0000000..8921572
--- /dev/null
+++ b/adc-da-sys/src/main/java/com/adc/da/sys/vo/iam/UserDetailInfo.java
@@ -0,0 +1,22 @@
+package com.adc.da.sys.vo.iam;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+
+/**
+ * @author: CaiHaohan
+ * @Date: 2023/5/17 15:06
+ * @Description:
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class UserDetailInfo {
+
+    private List<String> jobs;
+    private List<String> userTypes;
+    private List<String> orgs;
+}