title: “FAQ” lang: en ref: faq permalink: /docs/users/faq/ excerpt: “FAQ” last_modified_at: 2017-06-06T10:01:43-04:00 redirect_from:
Q: What need to be cautious when using Java-Chassis?
A: There are a few restrictions when using Java-Chassis:
@GetMapping
.Q: When using the spring-boot-starter-provider dependency, property like spring.main.web-environment
not working in application.yml file.
A: When you need both the starter provider dependency and the servlet, you need to declare spring.main.web-environment
in application.properties file or declare it in application.yml file and create an empty application.properties file.
Q: What's the dependency differences between gateway and other microservices?
<groupId>org.apache.servicecomb</groupId> <artifactId>spring-boot-starter-provider</artifactId>
A: Gateway depends on not only the spring-boot-starter-provider
, but also the spring-boot-starter-discovery
. This can refer to the manger implementation of LinuxCon-Beijing-Workshop.
Q: Do gateway need to configure assembly like the other microservices? Is /maven/gateway the default path of the docker maven plugin?
A: Yes. Docker maven plugin relies on the assembly files to generate docker image. /maven is the default path of docker maven plugin and /gateway is the path defined in the assembly file.
Q: Are there any restrictions of the return type of our API? Should it be the type of ResponseEntity?
A: No, examples can refer to the implementation of integration-test in java-chassis.
Q: Our API can not be accessed after microservices are up. It just returns 404 Not Found. The codes we use is as follows:
@RestController @RestSchema(schemaId = "worker") public class WorkerController { @RequestMapping(value="/count", method=RequestMethod.GET) public int getWorkerNumbers() { ... } }
A: Without specifying the base path, ServiceComb will use the classname as the base path. Hence, the path should be /WorkerController/count
in the previous code. If you want to access path like /count
, you need to specify base path as /
as follows:
@RequestMapping(value = "/") public class WorkerController {}
Q: What's the default base path if I have not declared the value of RequestMapping annotation?
A: Supposed the class name of your controller is HelloController, the base path is /HelloController.