SpringBoot(JAVA)整合微信公众号消息推送完整步骤(文本、图片/视频推送)
网上那些都是零零碎碎的,不完整,重新整理下,代码可直接使用。微信公众号消息推送大致分为两类,一是文本推送,二是带图片/视频推送。
文本推送很好理解,可以用模板消息以及自定义消息推送。
图文/视频推送就稍微麻烦些步骤分为 上传素材到临时/永久库->上传图文消息->消息推送。
贴几个官方文档,有总比没有好。
上传素材官方文档:https://developers.weixin.qq.com/doc/offiaccount/Asset_Management/New_temporary_materials.html
一、文本推送
这里文本推送,可以采取模板和自定义推送内容。以下是模板方式推送,在图片/视频推送中会使用自定义内容推送演示。
首先需要在微信公众号上把测试的环境弄好。
点击开发者工具->公众平台测试账号。进去创建好对应的消息模板以及关注该测试的公众号。里面会有appID/appsecret,用户,模板以及能体验接口的信息,没有认证的微信号,有些接口是没有权限的,而且部分接口在没有认证的情况下每天都会有调用次数限制。
添加依赖,因为项目里面用了自己的http封装类,需替换下
<dependency> <groupId>com.squareup.okhttp3</groupId> <artifactId>okhttp</artifactId> <version>5.0.0-alpha.14</version> </dependency> <dependency> <groupId>com.squareup.okio</groupId> <artifactId>okio</artifactId> <version>3.6.0</version> </dependency>
WxToken
用于生成请求接口token
/** * 存储微信公众号Token的POJO类 * * @author zjw * @description */ public class WxToken { // 存储token信息 private String accessToken; // 10:00:00 // 12:00:00 // 存储当前的token有效期到什么时间点 private Long expire; public String getAccessToken() { // 获取token之前,需要先判断生存时间到了没 return expire == null || expire < (System.currentTimeMillis() / 1000) ? null : this.accessToken; } public void setAccessToken(String accessToken) { this.accessToken = accessToken; } public Long getExpire() { return expire; } public void setExpire(Long expire) { this.expire = System.currentTimeMillis() / 1000 + expire; } }
WxMagPushReq
这里要注意下模板的填充值data的格式,keyword1就是你在模板里面所需要替换的参数名称,后面value就是参数的值,模板里面的参数是和传入的参数需一一对应
@Data @Schema(description = "微信消息推送部分用户实体") @JsonInclude(JsonInclude.Include.NON_NULL) //这个注解是用于实体转JSON的时候,空值就在转换的时候排除掉 public class WxMagPushReq { @Schema(description = "用户openid") private List<String> openIdList; @NotBlank(message = "模板id不能为空") @Schema(description = "模板id") private String templateId; @Schema(description = "模板需填充的值,keyword1就是模板里面需替换的参数名 如:{" + " \"keyword1\":{\n" + " \"value\":\"巧克力\"\n" + " },\n" + " \"keyword2\": {\n" + " \"value\":\"39.8元\"\n" + " },\n"+ " }") @NotBlank(message = "模板需填充的值不能为空") private String data; }
controller
Result 是自定义的返回类,换成自己的即可
/** * 微信公众号消息推送--需选用户openId发送 * * @return */ @Operation(summary = "微信公众号消息推送--需选用户openId发送") @PostMapping("/wxMsgPush") public Result wxMsgPush(@RequestBody @Valid WxMagPushReq wxMagPushReq) { return messageService.wxMsgPush(wxMagPushReq); }
service
Result wxMsgPush(WxMagPushReq wxMagPushReq);
serviceImpl
因为未认证的微信群发接口无法请求,采用循环发送的方式。
@Value("${weixin.msg.secret}") private String secret; @Value("${weixin.msg.appid}") private String appid; private static WxToken wxToken = new WxToken(); @Override public Result wxMsgPush(WxMagPushReq wxMagPushReq) { //1、拿到请求路径 String url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=" + getTokenString(); if (wxMagPushReq == null || wxMagPushReq.getOpenIdList().size() == 0 || StringUtils.isEmpty(wxMagPushReq.getData()) || StringUtils.isEmpty(wxMagPushReq.getTemplateId())) { throw ServiceException.error(ErrorCode.PARAM_EXCEPTION, "参数为空"); } //装推送失败的openId List<String> list = new LinkedList<>(); //传入的openId去重 List<String> collect = wxMagPushReq.getOpenIdList().stream().distinct().collect(Collectors.toList()); for (String openId : collect) { //2、请求参数 String params = "{\n" + " \"touser\":\"" + openId + "\",\n" + " \"template_id\":\"" + wxMagPushReq.getTemplateId() + "\",\n" + " \"data\":" + wxMagPushReq.getData() + // " \"data\":{\n" + // " \"tel\":{\n" + // " \"value\":\"18700000000\"\n" + // " }\n" + // " }\n" + " }"; HttpRequest request = HttpUtil.createPost(url); request.body(params); String str = request.execute().body(); JSONObject json = JSONObject.parseObject(str); Integer errcode = json.getInteger("errcode"); if (0 != errcode) { list.add(openId); } } return Result.ok(list); } //用于生成认证token private String getToken() { String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appid + "&secret=" + secret; //2、基于doGet方法,调用地址获取Token HttpRequest request = HttpUtil.createGet(url); String resultJSON = request.execute().body(); JSONObject jsonObject = JSONObject.parseObject(resultJSON); String accessToken = jsonObject.getString("access_token"); Long expiresIn = jsonObject.getLong("expires_in"); //3、存储到WxToken对象里 wxToken.setAccessToken(accessToken); wxToken.setExpire(expiresIn); //4、返回Token return wxToken.getAccessToken(); } public String getTokenString() { // 从对象中获取accessToken String accessToken = wxToken.getAccessToken(); // 获取的accessToken为null,可能之前没获取,可能过期了 if (accessToken == null) { // 加锁 synchronized (wxToken) { // 再次判断 if (wxToken.getAccessToken() == null) { getToken(); } } } return wxToken.getAccessToken(); }
代码中注释掉的tel就是模板中对应的参数名称。
启动项目就可以测试了,请求成功,所关注的公众号会发一条推送的信息过来。
二、图文推送
把图片/视频称为素材,带素材推送步骤。上传素材到临时/永久库->上传图文消息->消息推送。之前看社区说永久的素材库不能使用,下面的示例采用的是临时库。
注:上传素材的时候会返回media_id这个ID在上传图文消息的时候需要用到,上传图文消息的时候也会返回media_id,这个ID在消息推送的时候也会用到。
WxMagPushAllReq
@Data @Schema(description = "微信消息推送全部用户实体") @JsonInclude(JsonInclude.Include.NON_NULL) public class WxMagPushAllReq { @Schema(description = "1-文本,2图文,当发送图文消息时,mediaId不能为空") private String type; // @NotBlank(message = "消息内容不能为空") @Schema(description = "图文mediaId") private String mediaId; // @NotBlank(message = "消息内容不能为空") @Schema(description = "消息内容") private String content; }
WxTuwen
@Data public class WxTuwen { //图片media_id @Schema(description = "图片media_id") private String thumb_media_id; @Schema(description = "图文消息的作者") //图文消息的作者 private String author; @Schema(description = "标题") //标题 private String title; @Schema(description = "在图文消息页面点击“阅读原文”后的页面,受安全限制,如需跳转Appstore,可以使用itun.es或appsto.re的短链服务,并在短链后增加 #wechat_redirect 后缀") //在图文消息页面点击“阅读原文”后的页面,受安全限制,如需跳转Appstore,可以使用itun.es或appsto.re的短链服务,并在短链后增加 #wechat_redirect 后缀。 private String content_source_url; @Schema(description = "图文消息页面的内容") //图文消息页面的内容,支持HTML标签。 private String content; @Schema(description = "图文消息的描述") //图文消息的描述,如本字段为空 private String digest; @Schema(description = "是否显示封面,1为显示,0为不显示") //是否显示封面,1为显示,0为不显示 private Integer show_cover_pic; }
controller
@Operation(summary = "微信公众号消息推送--推送全部用户") @PostMapping("/wxMsgPushAll") public Result wxMsgPushAll(@RequestBody @Valid WxMagPushAllReq wxMagPushAllReq) { return messageService.wxMsgPushAll(wxMagPushAllReq); } @Operation(summary = "微信公众号消息推送--上传临时素材") @PostMapping("/addMaterial") public Result addMaterial(@RequestParam("media") MultipartFile media, @RequestParam("type") String type) { return messageService.addMaterial(media,type); } @Operation(summary = "微信公众号消息推送--上传图文消息素材") @PostMapping("/uploadnews") public Result uploadnews(@RequestBody @Valid WxTuwen wxTuwen) { return messageService.uploadnews(wxTuwen); }
serveice
Result wxMsgPushAll(WxMagPushAllReq wxMagPushAllReq); Result addMaterial(MultipartFile media, String type); Result uploadnews(WxTuwen wxTuwen);
serviceImpl
@Value("${weixin.msg.secret}") private String secret; @Value("${weixin.msg.appid}") private String appid; private static WxToken wxToken = new WxToken(); @Override public Result wxMsgPushAll(WxMagPushAllReq wxMagPushAllReq) { String list = getWxUserOpenid(getTokenString(), "", ""); if (StringUtils.isEmpty(list)) { return Result.ok(); } String url = "https://api.weixin.qq.com/cgi-bin/message/mass/send?access_token=" + getTokenString(); //预览接口,可以看推送的效果 // String url = " https://api.weixin.qq.com/cgi-bin/message/mass/preview?access_token=" + getTokenString(); String params = ""; if ("1".equals(wxMagPushAllReq.getType())) { //自定义推送内容 params = "{\n" + " \"touser\":[" + list.substring(0, list.length() - 1) + "],\n" + " \"msgtype\": \"text\",\n" + " \"text\": { \"content\": \"" + wxMagPushAllReq.getContent() + "\"}" + " }"; } else { //带图文推送消息 params = "{\n" + " \"touser\":[" + list.substring(0, list.length() - 1) + "],\n" + " \"mpnews\":{\n" + " \"media_id\":\"" + wxMagPushAllReq.getMediaId() + "\"\n" + " },\n" + " \"msgtype\":\"mpnews\",\n" + " \"send_ignore_reprint\":0\n" + "}"; } HttpRequest request = HttpUtil.createPost(url); request.body(params); String str = request.execute().body(); System.out.println(str); return Result.ok(str); } @Override public Result addMaterial(MultipartFile media, String type) { try { String mediaId = uploadFile(transferToFile(media), getTokenString(), type); return Result.ok(mediaId); } catch (Exception e) { throw new RuntimeException(e); } } @Override public Result uploadnews(WxTuwen wxTuwen) { //如需处理多个图文,修改为循环处理 String url = "https://api.weixin.qq.com/cgi-bin/media/uploadnews?access_token=" + getTokenString(); String str = JSONObject.toJSONString(wxTuwen); str = "{" + "\"articles\":[" + str + "]" + "}"; HttpRequest request = HttpUtil.createPost(url); request.body(str); String body = request.execute().body(); JSONObject jsonObject = JSONObject.parseObject(body); return Result.ok(jsonObject.getString("media_id")); } //将类型MultipartFile转为file类型 public File transferToFile(MultipartFile file) { try { File convFile = new File(file.getOriginalFilename()); convFile.createNewFile(); InputStream in = file.getInputStream(); OutputStream out = new FileOutputStream(convFile); byte[] bytes = new byte[1024]; int read; while ((read = in.read(bytes)) != -1) { out.write(bytes, 0, read); } return convFile; } catch (Exception e) { throw new RuntimeException(); } } //上传到临时库,返回一个ID public String uploadFile(File file, String accessToken, String type) throws Exception { //临时素材地址 String url1 = "https://api.weixin.qq.com/cgi-bin/media/upload?access_token=" + accessToken + "&type=" + type; //永久素材的地址 // String url1 = "https://api.weixin.qq.com/cgi-bin/material/add_material?access_token=" + accessToken + "&type=" + type; if (!file.exists() || !file.isFile()) { throw new IOException("文件不存在!"); } URL urlObj = new URL(url1); //连接 HttpURLConnection conn = (HttpURLConnection) urlObj.openConnection(); conn.setRequestMethod("POST"); conn.setDoInput(true); conn.setDoOutput(true); conn.setUseCaches(false); //请求头 conn.setRequestProperty("Connection", "Keep-Alive"); conn.setRequestProperty("Charset", "UTF-8"); //conn.setRequestProperty("Content-Type","multipart/form-data;"); //设置边界 String BOUNDARY = "----------" + System.currentTimeMillis(); conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + BOUNDARY); StringBuilder sb = new StringBuilder(); sb.append("--"); sb.append(BOUNDARY); sb.append("\r\n"); sb.append("Content-Disposition:form-data;name=\"file\";filename=\"" + file.getName() + "\"\r\n"); sb.append("Content-Type:application/octet-stream\r\n\r\n"); System.out.println(sb); byte[] head = sb.toString().getBytes("UTF-8"); //输出流 OutputStream out = new DataOutputStream(conn.getOutputStream()); out.write(head); //文件正文部分 DataInputStream in = new DataInputStream(new FileInputStream(file)); int bytes = 0; byte[] bufferOut = new byte[1024]; while ((bytes = in.read(bufferOut)) != -1) { out.write(bufferOut, 0, bytes); } in.close(); //结尾 byte[] foot = ("\r\n--" + BOUNDARY + "--\r\n").getBytes("utf-8"); out.write(foot); out.flush(); out.close(); //获取响应 StringBuffer buffer = new StringBuffer(); BufferedReader reader = null; String result = null; reader = new BufferedReader(new InputStreamReader(conn.getInputStream())); String line = null; while ((line = reader.readLine()) != null) { buffer.append(line); } if (result == null) { result = buffer.toString(); } reader.close(); //需要添加json-lib jar包 JSONObject json = JSONObject.parseObject(result); System.out.println(json); String mediaId = json.getString("thumb_media_id"); return result; } //根据appid和secretaccess_token private String getToken() { String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appid + "&secret=" + secret; //2、基于doGet方法,调用地址获取Token HttpRequest request = HttpUtil.createGet(url); String resultJSON = request.execute().body(); JSONObject jsonObject = JSONObject.parseObject(resultJSON); String accessToken = jsonObject.getString("access_token"); Long expiresIn = jsonObject.getLong("expires_in"); //3、存储到WxToken对象里 wxToken.setAccessToken(accessToken); wxToken.setExpire(expiresIn); //4、返回Token return wxToken.getAccessToken(); } public String getTokenString() { // 从对象中获取accessToken String accessToken = wxToken.getAccessToken(); // 获取的accessToken为null,可能之前没获取,可能过期了 if (accessToken == null) { // 加锁 synchronized (wxToken) { // 再次判断 if (wxToken.getAccessToken() == null) { getToken(); } } } return wxToken.getAccessToken(); }
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