本文介紹了JAVA maven專案使用釘釘SDK獲取token、使用者，分享給大家，具體如下：

將SDK放一個檔案裡，記住檔案地址。D:\eclipse-workspace\專案名\模組名\lib

win+r cmd 敲下面的命令：

【進入相應盤】 D:

【進入檔案地址】 cd D:\eclipse-workspace\專案名\模組名

【執行命令】 mvn install:install-file -DgroupId=com.dingtalk.api -DartifactId=top-api-sdk-dev -Dversion=ding-open-mc-SNAPSHOT -Dfile=lib/taobao-sdk-java-auto_1479188381469-20200319.jar -Dpackaging=jar -DgeneratePom=true

然後在pom檔案中增加以下內容：

<!--釘釘工具包-->
   <dependency>
     <groupId>com.dingtalk.api</groupId>
     <artifactId>top-api-sdk-dev</artifactId>
     <version>ding-open-mc-SNAPSHOT</version>
   </dependency>

理解：普通的maven專案都會在pom裡配置好jar，專案自動從maven中配置的映象地址（就是網上）自己把jar包下載到你設定的位置

但是有些jar包下載不下來，可以先本地儲存，然後像上面那樣用命令把jar包掛到maven設定的jar庫裡去

JAVA後臺程式碼：

import com.dingtalk.api.DefaultDingTalkClient;
import com.dingtalk.api.DingTalkClient;
import com.dingtalk.api.request.OapiDepartmentListRequest;
import com.dingtalk.api.request.OapiGettokenRequest;
import com.dingtalk.api.request.OapiMessageCorpconversationAsyncsendV2Request;
import com.dingtalk.api.request.OapiUserSimplelistRequest;
import com.dingtalk.api.response.OapiDepartmentListResponse;
import com.dingtalk.api.response.OapiGettokenResponse;
import com.dingtalk.api.response.OapiMessageCorpconversationAsyncsendV2Response;
import com.dingtalk.api.response.OapiUserSimplelistResponse;
import com.taobao.api.ApiException;

import com.dingtalk.api.response.OapiDepartmentListResponse.Department;


import com.dingtalk.api.request.*;
import com.dingtalk.api.response.*;

。。。

 
登入介面方法（前端傳來code）{

// 釘釘 /gettoken 獲取token，只需填寫appkey和appsecret
    try {
      DingTalkClient client1 = new DefaultDingTalkClient("https://oapi.dingtalk.com/gettoken");
      OapiGettokenRequest req1 = new OapiGettokenRequest();
      req1.setAppkey("xxxxxxxx");
      req1.setAppsecret("xxxxxxxx");
      req1.setHttpMethod("GET");
      OapiGettokenResponse rsp1 = client1.execute(req1);
      System.out.println(rsp1.getBody());
     
      accessToken = rsp1.getAccessToken();
    } catch (Exception e) {
    //} catch (ApiException e) {
      e.printStackTrace();
    }
    // 釘釘 /user/getuserinfo 獲取使用者userid
    try {
      DingTalkClient client2 = new DefaultDingTalkClient("https://oapi.dingtalk.com/user/getuserinfo");
      OapiUserGetuserinfoRequest req2 = new OapiUserGetuserinfoRequest();
      req2.setCode(code);//
      req2.setHttpMethod("GET");
      OapiUserGetuserinfoResponse rsp2 = client2.execute(req2,accessToken);//
      System.out.println(rsp2.getBody());
     
      userId = rsp2.getUserid();
      System.out.println("userId：" + userId);
      System.out.println("------------------------------------------------------");
    } catch (ApiException e) {
      e.printStackTrace();
    }

      // 釘釘 /user/get 獲取使用者詳情
      try {
        DingTalkClient client3 = new DefaultDingTalkClient("https://oapi.dingtalk.com/user/get");
        OapiUserGetRequest req3 = new OapiUserGetRequest();
        req3.setUserid(userId);//
        req3.setHttpMethod("GET");
        OapiUserGetResponse rsp3 = client3.execute(req3,accessToken);//
        System.out.println(rsp3.getBody());
        
      } catch (ApiException e) {
        e.printStackTrace();
      }

　　　// 釘釘 獲取所有部門列表

　　try {
      DingTalkClient client4 = new DefaultDingTalkClient("https://oapi.dingtalk.com/department/list");
      OapiDepartmentListRequest req4 = new OapiDepartmentListRequest();
      req4.setHttpMethod("GET");
      req4.setId("1");
      OapiDepartmentListResponse rsp4 = client4.execute(req4,accessToken);
      System.out.println("-----------------獲取所有部門列表-----------------");
      System.out.println(rsp4.getBody());
      List<Department> departmentList = rsp4.getDepartment();
      System.out.println("-----------------------------------------------------");

　　　// [{id: xxx,parentid: xxx,......},{id: xxx,......}]
      System.out.println(departmentList.get(0).getId();

　　　 Long parentid = departmentList.get(0).getParentid();
    } catch (ApiException e) {
      e.printStackTrace();
    }　
}

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