Question

我发现Can a spring boot @RestController be enabled/disabled using properties?解决了启动时未启动@Controller的问题，但我正在寻找一种在运行时停止@Controller的方法。

Answer 1

我实际上会使用@RefreshScope Bean，然后当您想在运行时停止Rest Controller时，只需要将该控制器的属性更改为false。

SO的link引用运行时更改的属性。

以下是我的工作代码段：

@RefreshScope
@RestController
class MessageRestController(
    @Value("\${message.get.enabled}") val getEnabled: Boolean,
    @Value("\${message:Hello default}") val message: String
) {
    @GetMapping("/message")
    fun get(): String {
        if (!getEnabled) {
            throw NoHandlerFoundException("GET", "/message", null)
        }
        return message
    }
}

还有使用过滤器的其他替代方法：

@Component
class EndpointsAvailabilityFilter @Autowired constructor(
    private val env: Environment
): OncePerRequestFilter() {
    override fun doFilterInternal(
        request: HttpServletRequest,
        response: HttpServletResponse,
        filterChain: FilterChain
    ) {
        val requestURI = request.requestURI
        val requestMethod = request.method
        val property = "${requestURI.substring(1).replace("/", ".")}." +
                "${requestMethod.toLowerCase()}.enabled"
        val enabled = env.getProperty(property, "true")
        if (!enabled.toBoolean()) {
            throw NoHandlerFoundException(requestMethod, requestURI, ServletServerHttpRequest(request).headers)
        }
        filterChain.doFilter(request, response)
    }
}

My Github explaining how to disable at runtime

在运行时停止Spring @Controller

1 个答案: