java实现微信公众号图文、视频一键发布

微信公众号开发

一、准备工作

在微信开发平台申请一个测试账号（优先选择这个），如果可以使用认证过的订阅号最好，不过我们在开发阶段很多功能都是测试用的，申请一个测试账号完全够用
个人的订阅号是不可以申请认证的，所以很多微信API不可以用

二、开始开发

写在前面

项目所需依赖

  <!-- SpringBoot Web容器 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--httpclient工具类https://github.com/Arronlong/httpclientutil-->
        <dependency>
            <groupId>com.arronlong</groupId>
            <artifactId>httpclientutil</artifactId>
            <version>1.0.4</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.10</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.72</version>
        </dependency>
        <!--httpClient需要的依赖-->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.2</version>
        </dependency>
        <!--//httpclient缓存-->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient-cache</artifactId>
            <version>4.5</version>
        </dependency>
        <!--//http的mime类型都在这里面-->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpmime</artifactId>
            <version>4.3.2</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.0</version>
        </dependency>
        <dependency>
            <groupId>com.hankcs</groupId>
            <artifactId>hanlp</artifactId>
            <version>portable-1.2.8</version>
        </dependency>

所有涉及到的微信api接口地址

    private static ObjectMapper objectMapper = new ObjectMapper();
    private static final String DRAFTADD = "https://api.weixin.qq.com/cgi-bin/draft/add?access_token=";//新建草稿文章
    private static final String PUBLISH = "https://api.weixin.qq.com/cgi-bin/freepublish/submit?access_token="; //正式发布文章
    private static final String PUBLISHRESULT = "https://api.weixin.qq.com/cgi-bin/freepublish/get?access_token=";//获取发布文章结果
    private static final String GETMATERIAL = "https://api.weixin.qq.com/cgi-bin/material/get_material?access_token="; //获取上传素材信息
    private static final String ARTICLEDELETE = "https://api.weixin.qq.com/cgi-bin/freepublish/delete?access_token=";//删除已发布文章
    private static final String UPLOADVIDEO = "https://api.weixin.qq.com/cgi-bin/media/uploadvideo?access_token=";//发送预览视频（视频群发）时的上传视频素材
    private static final String PREVIEW = "https://api.weixin.qq.com/cgi-bin/message/mass/preview?access_token=";//视频预览
    private static final String SENDALL = "https://api.weixin.qq.com/cgi-bin/message/mass/sendall?access_token=";//视频、图文群发
    private static final String SENDALLDELETE = "https://api.weixin.qq.com/cgi-bin/message/mass/delete?access_token=";//群发视频删除

1：开发准备工作

（1）：由于我调用微信API是通过http请求来的，所以需要一个HTTP请求工具类

​ 具体代码如下：

参数说明：json,传的参数

​ url：请求api地址

@Slf4j
public class HttpUtil {
   

 
    /**
     * 发送post请求
     * @param json 参数体
     * @param URL 请求地址
     * @return 返回结果
     */
    public static String sendPost(JSONObject json, String URL) {
   
        CloseableHttpClient client = HttpClients.createDefault();
        HttpPost post = new HttpPost(URL);
        post.setHeader("Content-Type", "application/json");
        post.setHeader("User-Agent", "Apipost client Runtime/+https://www.apipost.cn/");
        // post.addHeader("Authorization", "Basic YWRtaW46");
        String result;
        try {
   
            StringEntity s = new StringEntity(json.toString(), "utf-8");
            s.setContentType(new BasicHeader(HTTP.CONTENT_TYPE,
                    "application/json"));
            post.setEntity(s);
            // 发送请求
            HttpResponse httpResponse = client.execute(post);
            // 获取响应输入流
            InputStream inStream = httpResponse.getEntity().getContent();
            BufferedReader reader = new BufferedReader(new InputStreamReader( inStream, "utf-8"));
            StringBuilder strBuilder = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null)
                strBuilder.append(line + "\n");
            inStream.close();
            result = strBuilder.toString();
            if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
   
                log.info("请求服务器SUCCESS");
                // System.out.println("请求服务器成功，做相应处理");
            } else {
   
                log.info("请求服务端FALSE");
                // System.out.println("请求服务端失败");
            }
        } catch (Exception e) {
   
            log.error("请求异常EXCEPTION："+e.getMessage());
            throw new RuntimeException(e);
        }
        return result;
    }
 
    /**
     * 发送get请求
     * @param url 请求URL
     * @param param 请求参数 key:value url携带参数 或者无参可不填
     * @return
     */
    public static String sendGet(String url, Map<String, String> param) {
   
 
        // 创建Httpclient对象
        CloseableHttpClient httpclient = HttpClients.createDefault();
 
        String resultString = "";
        CloseableHttpResponse response = null;
        try {
   
            // 创建uri
            URIBuilder builder = new URIBuilder(url);
            if (param != null) {
   
                for (String key : param.keySet()) {
   
                    builder.addParameter(key, param.get(key));
                }
            }
            URI uri = builder.build();
 
            // 创建http GET请求
            HttpGet httpGet = new HttpGet(uri);
 
            // 执行请求
            response = httpclient.execute(httpGet);
            // 判断返回状态是否为200
            if (response.getStatusLine().getStatusCode() == 200) {
   
                resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
            }
        } catch (Exception e) {
   
            e.printStackTrace();
        } finally {
   
            try {
   
                if (response != null) {
   
                    response.close();
                }
                httpclient.close();
            } catch (IOException e) {
   
                e.printStackTrace(<