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引言

记录一下 OkHttp 的使用；OkHttp 异步发送回调请求，增加回调失败重试。

使用 OkHttp 发送回调

/*** 回调重试类*/
@Data
public class CallBackRetryData {/*** 回调信息JSON*/private JSONObject bodyRequest;/*** 回调发送地址*/private String url;/*** 重试次数*/private int time;public CallBackRetryData(JSONObject bodyRequest, String url, int time) {this.bodyRequest = bodyRequest;this.url = url;this.time = time;}
}

/*** HTTP 操作类*/
@Slf4j
@Service
public class HttpService {private static final OkHttpClient OK_HTTP_CLIENT = new OkHttpClient().newBuilder().connectTimeout(1, TimeUnit.MINUTES).readTimeout(1, TimeUnit.MINUTES).writeTimeout(1, TimeUnit.MINUTES).build();/*** 回调重试队列*/private final Queue<CallBackRetryData> VERIFY_QUEUE = new LinkedList<>();/*** 构造回调信息*/public void buildCallBackData() {JSONObject bodyRequest = new JSONObject();bodyRequest.put("userId", "123456789");CallBackRetryData retryData = new CallBackRetryData(bodyRequest, "https://发送回调地址", 1);sendCallBack(retryData);}/*** 异步发送回调*/public void sendCallBack(CallBackRetryData retryData) {RequestBody requestBody = RequestBody.create(retryData.getBodyRequest().toJSONString(), MediaType.parse("application/json;charset=utf-8"));Request request = new Request.Builder().url(retryData.getUrl()).post(requestBody).addHeader("content-type", "application/x-www-form-urlencoded").build();OK_HTTP_CLIENT.newCall(request).enqueue(new Callback() {@Overridepublic void onFailure(Call call, IOException e) {log.error("[回调失败][call:{}]", e.getMessage());// 回调次数+1retryData.setTime(retryData.getTime() + 1);// 放入验证队列VERIFY_QUEUE.offer(retryData);}@Overridepublic void onResponse(Call call, Response response) throws IOException {String responseData = response.body().string();CallBackResponseData callBackData = JSONObject.parseObject(responseData, CallBackResponseData.class);if (callBackData.getCode() != 200) {log.error("[回调失败][状态码错误：{}]", callBackData);// 回调次数+1retryData.setTime(retryData.getTime() + 1);// 放入验证队列VERIFY_QUEUE.offer(retryData);}}});}/*** 每分钟检查一次*/@Scheduled(cron = "0 0/1 * * * ? ")public void execute() {// 执行超时验证队列while (VERIFY_QUEUE.size() > 0) {CallBackRetryData retryData = VERIFY_QUEUE.poll();// 重新发送if (retryData.getTime() <= 3) {try {log.info("[VERIFY_QUEUE][userId:{}][time:{}]",retryData.getBodyRequest().getString("userId"),retryData.getTime());sendBonusCallBack(retryData);} catch (Exception e) {log.error("[VERIFY_QUEUE error: {}]", e.getMessage());}}}}
}

其他

Java OkHttp使用