Camunda Docs 可执行进程中的问题添加 ChargeCardWorker.class

Question

当我运行代码ChargeCardWorker.class

时出现这个错误

org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://localhost:8080/engine-rest/external-task/fetchAndLock HTTP/1.1' returned error: status code '404' - message: status code: 404, reason phrase: <!doctype html><html lang='zh'><title>HTTP Status 404</title><h3>Apache Tomcat/8.5.50</h3></html>
    at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
    at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
    at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
    at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
    at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
    at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
    at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
    at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.http.client.HttpResponseException: status code: 404, reason phrase: <!doctype html><html lang='zh'>HTTP Status 404<h3>Apache Tomcat/8.5.50</h3></body></html>
    at org.camunda.bpm.client.impl.RequestExecutor.handleResponse(RequestExecutor.java:146)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
    at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
    ... 6 more

我不认为我按照tutorial.How解决这个问题的错误吗？

Answer 1

404错误表示在客户端使用的URL下无法访问API

检查您的 worker（~第 12 行）中定义的 baseUrl 是否与服务器公开 REST-API 的 url 相匹配，例如 baseUrl("http://localhost:8080/engine-rest")

端口是否正确？是否部署了 REST API？在您的浏览器中验证这一点，例如通过访问 http://localhost:8080/engine-rest/process-definition/

server-side 上的可能原因：

服务器未启动
Camunda 未部署
部署失败（检查服务器日志）
部署中未包含 REST-API（spring 启动程序）

根据您使用的 Camunda 版本和部署模型，rest-api 可能可以在不同的 URL 下访问。

年长者：

spring-boot -> /rest
non-spring-boot -> /engine-rest

从 7.13 开始：

only /engine-rest

也试试 http://localhost:8080/engine/process-definition/

Camunda Docs 可执行进程中的问题添加 ChargeCardWorker.class

A problem in Camunda Docs Executable Process Add the ChargeCardWorker.class

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