Azure Web App Github Action部署Jar包到App Service遇到400错误怎么办？

问题描述 通过github aciton部署azure app service服务的时候，遇见400报错。 报错信息非常简单： Starting deployment for web app... Package deployment using OneDeploy initiated. Error: Failed to deploy web package to App Service. Error: Deployment Failed, Error: Failed to deploy web package using OneDeploy to App Service. Bad Request (CODE: 400) 这个问题应该如何调查呢？ 问题解答 在Github Aciton中，使用 Azure WebApp(azure/webapps-deploy@v3)来部署App Service的应用, 这次部署的是一个jar包。 Github Action 脚本: - name: Azure WebApp uses: azure/webapps-deploy@v3 with: app-name: '<app service name>' package: ${{ github.workspace }}/target/*.jar 查看Azure文档，介绍部署java应用时，使用az cli命令，github action和maven 插件都是使用的Kudu OneDeploy接口( https://<your web app>.scm.chinacloudsites.cn/api/publish?type=jar ) (文档链接：https://docs.azure.cn/zh-cn/app-service/configure-language-java-deploy-run?tabs=linux&pivots=java-tomcat#deploying-your-app) 根据以上信息，就尝试使用az webapp deploy命令直接部署jar包应用，发现多了一句错误提示信息： > az webapp deploy --resource-group <your resource group name> --name <your app service name> --src-path myjava.jar --type jar Initiating deployment Deploying from local path: myjava.jar An error occurred during deployment. Status Code: 400, Details: "Artifact type = 'Jar' cannot be deployed to stack = 'TOMCAT'. Site should be configured to run with stack = JAVA", Please visit https://XXXXXXXXX.scm.chinacloudsites.cn/api/deployments/latest to get more information about your deployment 这句错误消息非常关键(Artifact type = 'Jar' cannot be deployed to stack = 'TOMCAT'. Site should be configured to run with stack = JAVA")。 在查看App Service的配置信息后，Stack果然设置为Tomcat。 因为这里只有两种选项( Tomcat 和Java SE )。于是，修改为Java SE后，再次部署jar包。 成功。 当问题解决后，想进一步验证是否是one deploy接口对jar包的强制限制。 恰好kudu也是开源项目，所以，进入github kudu 仓库 (源码：https://github.com/projectkudu/kudu/tree/master )，使用错误消息关键字整库搜索“cannot be deployed to stack”，最终，定位到 PushDeploymentController.cs 中，有如下的验证条件： 当部署的文件为Jar时，需要判断目标App Service的Stack只能是JavaSE。如果不是，返回400的状态码 附录一：使用 curl 命令直接调用接口也可以复现问题，效果和az webapp deploy命令相同 curl -X POST \ -u user:password \ -T "/Users/Downloads/xxxxx-0.0.1-SNAPSHOT.jar" \ "https://xxxxx.scm.chinacloudsites.cn/api/publish?type=jar" \ -v * Host xxxxx.scm.chinacloudsites.cn:443 was resolved. * IPv6: (none) * IPv4: 159.27.20.0 * Trying 159.27.20.0:443... * Connected to xxxxx.scm.chinacloudsites.cn (159.27.20.0) port 443 * ALPN: curl offers h2,http/1.1 * (304) (OUT), TLS handshake, Client hello (1): * CAfile: /etc/ssl/cert.pem * CApath: none * (304) (IN), TLS handshake, Server hello (2): * (304) (OUT), TLS handshake, Client hello (1): * (304) (IN), TLS handshake, Server hello (2): * (304) (IN), TLS handshake, Unknown (8): * (304) (IN), TLS handshake, Certificate (11): * (304) (IN), TLS handshake, CERT verify (15): * (304) (IN), TLS handshake, Finished (20): * (304) (OUT), TLS handshake, Finished (20): * SSL connection using TLSv1.3 / AEAD-AES256-GCM-SHA384 / [blank] / UNDEF * ALPN: server accepted http/1.1 * Server certificate: * subject: C=CN; ST=Shanghai; O=Shanghai Blue Cloud Technology Co., Ltd.; CN=*.chinacloudsites.cn * start date: Dec 19 00:00:00 2025 GMT * expire date: Jun 17 23:59:59 2026 GMT * subjectAltName: host "xxxxx.scm.chinacloudsites.cn" matched cert's "*.scm.chinacloudsites.cn" * issuer: C=US; O=DigiCert Inc; CN=DigiCert Basic RSA CN CA G2 * SSL certificate verify ok. * using HTTP/1.x * Server auth using Basic with user 'deploypoc' > POST /api/publish?type=jar HTTP/1.1 > Host: xxxxx.scm.chinacloudsites.cn > Authorization: Basic xxxxxxxxxxxxxxxx > User-Agent: curl/8.7.1 > Accept: */* > Content-Length: 25578166 > Expect: 100-continue > * Done waiting for 100-continue < HTTP/1.1 400 Bad Request < Content-Type: text/plain; charset=utf-8 < Date: Wed, 31 Dec 2025 03:42:36 GMT < Server: Kestrel < Set-Cookie: ARRAffinity=xxxx;Path=/;HttpOnly;Secure;Domain=xxxxx.scm.chinacloudsites.cn < Set-Cookie: ARRAffinitySameSite=xxxxx;Path=/;HttpOnly;SameSite=None;Secure;Domain=xxxxx.scm.chinacloudsites.cn < Transfer-Encoding: chunked < * HTTP error before end of send, stop sending * abort upload after having sent 589824 bytes * Closing connection Artifact type = 'Jar' cannot be deployed to stack = 'TOMCAT'. Site should be configured to run with stack = JAVA% 参考资料 App Service部署Java应用：https://docs.azure.cn/zh-cn/app-service/configure-language-java-deploy-run?tabs=linux&pivots=java-tomcat#deploying-your-app Kudu One Deploy Source Code ： https://github.com/projectkudu/kudu/blob/master/Kudu.Services/Deployment/PushDeploymentController.cs#L304