企业微信 获取access

一、快速入门

1. 开发文档2. 管控台3. 接口文档4. 参数获取5. api调试 二、java实战

2.1. 入口2.2. 核心方法2.3. 核心配置2.3. RestUtils 工具类2.5. token缓存策略2.6. 源码分享

企业内部开发文档：
https://developer.work.weixin.qq.com/document/path/91039

企业微信管控台：
https://work.weixin.qq.com/wework_admin/frame#apps

获取access_token接口文档

corpid->获取企业ID

corpsecret->应用secret

postman调试
官网调试
https://developer.work.weixin.qq.com/resource/devtool
二、java实战 2.1. 入口

  // 1.通过corpId获取AccessToken
  String accessToken = getAccessToken(corpId);

 
    public String getAccessToken(String corpId) {
        String result = "";

        String accessTokenUrl = String.format(QywxInnerConfig.ACCESS_TOKEN_URL, corpId, AGENT_SECRET);
        Map response = RestUtils.get(accessTokenUrl);

        //获取错误日志
        if (response.containsKey("errcode") && (Integer) response.get("errcode") != 0) {
            logger.error(response.toString());
        } else {
            result = (String) response.get("access_token");
        }
        return result;
    }

package com.gblfy.qywxin.config;


public class QywxInnerConfig {

    public static final String base_URL = "https://qyapi.weixin.qq.com/cgi-bin/";

    //获取access_token
    //https://open.work.weixin.qq.com/api/doc/90000/90135/91039
    public static final String ACCESS_TOKEN_URL = base_URL + "gettoken?corpid=%s&corpsecret=%s";
}

 @Value("${qywx.agentSecret}")
 private String AGENT_SECRET;

package com.gblfy.qywxin.utils;

import com.alibaba.fastjson.JSONObject;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.*;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.util.UriComponentsBuilder;

import java.io.IOException;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Map;
import java.util.Objects;

@Configuration
public class RestUtils {

    private static final RestTemplate restTemplate = new RestTemplate();

    public static JSonObject get(String url, Map urlParams){
        return get(urlToUri(url,urlParams));
    }

    //在处理企业微信某些参数时有问题
    public static JSonObject get(String url){
        return get(URI.create(url));
    }

    private static JSonObject get(URI uri){
        ResponseEntity responseEntity =restTemplate.getForEntity(uri,JSONObject.class);
        serverIsRight(responseEntity);   //判断服务器返回状态码
        return responseEntity.getBody();
    }

    public static JSonObject post(String url,Map urlParams,JSonObject json){
        //组装url
        return post(urlToUri(url,urlParams),json);
    }

    public static JSonObject post(String url,JSonObject json){
        //组装urL
        return post(URI.create(url),json);
    }

    private static JSonObject post(URI uri,JSonObject json){
        //组装url
        //设置提交json格式数据
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON);
        HttpEntity request = new HttpEntity(json, headers);
        ResponseEntity responseEntity = restTemplate.postForEntity(uri,request,JSONObject.class);
        serverIsRight(responseEntity);  //判断服务器返回状态码
        return responseEntity.getBody();
    }

    private static URI urlToUri(String url,Map urlParams){
        //设置提交json格式数据
        UriComponentsBuilder uriBuilder = UriComponentsBuilder.fromHttpUrl(url);
        for(Map.Entry entry : urlParams.entrySet())  {
            uriBuilder.queryParam((String)entry.getKey(),  (String) entry.getValue()) ;
        }
        return  uriBuilder.build(true).toUri();
    }

    public static JSonObject upload(String url,MultiValueMap formParams){
        //设置表单提交
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.MULTIPART_FORM_DATA);
        HttpEntity> request = new HttpEntity<>(formParams, headers);
        ResponseEntity responseEntity = restTemplate.postForEntity(url,request,JSONObject.class);
        serverIsRight(responseEntity);  //判断服务器返回状态码
        return responseEntity.getBody();
    }

    public static String download(String url,String targetPath) throws IOException {

        ResponseEntity rsp = restTemplate.getForEntity(url, byte[].class);
        if(rsp.getStatusCode() != HttpStatus.OK){
            System.out.println("文件下载请求结果状态码：" + rsp.getStatusCode());
        }
        // 将下载下来的文件内容保存到本地
        Files.write(Paths.get(targetPath), Objects.requireNonNull(rsp.getBody()));
        return targetPath;

    }

    public static byte[] dowload(String url){
        ResponseEntity rsp = restTemplate.getForEntity(url, byte[].class);
        return rsp.getBody();
    }

    private static void serverIsRight(ResponseEntity responseEntity){
        if(responseEntity.getStatusCodevalue()==200){
//            System.out.println("服务器请求成功：{}"+responseEntity.getStatusCodevalue());
        }else {
            System.out.println("服务器请求异常：{}"+responseEntity.getStatusCodevalue());
        }
    }
}

建议使用redis，说一下具体实现流程：

1.获取token，根据token_key 查询redis中是否存在2.如果存在，就获取token直接用3.如果不存在，则通过企业ID获取token存储redis过期时间设置为2小时 2.6. 源码分享

https://gitee.com/gblfy/qywx-inner-java-api