有不同的方法可以实现你想要的。我在帮助客户时使用的方法是依赖于Spring Boot Actuator提供的/shutdown URL。
重要提示:如果您使用此方法,请务必在生产环境下
禁用或保护/shutdown端点。
在构建文件中,你有两个任务:
task startWebApp(type: StartApp) {
dependsOn 'assemble'
jarFile = jar.archivePath
port = 8080
appContext = "MyApp"
}
task stopWebApp(type: StopApp) {
urlPath = "${startWebApp.baseUrl}/shutdown"
}
您需要确保您的集成测试依赖于startWebApp
任务,并且它们应该由stop任务完成。类似这样的:
integTest.dependsOn "startWebApp"
integTest.finalizedBy "stopWebApp"
当然,您还需要创建自定义任务实现:
class StartApp extends DefaultTask {
static enum Status { UP, DOWN, TIMED_OUT }
@InputFile
File jarFile
@Input
int port = 8080
@Input
String appContext = ""
String getBaseUrl() {
return "http://localhost:${port}" + (appContext ? '/' + appContext : '')
}
@TaskAction
def startApp() {
logger.info "Starting server"
logger.debug "Application jar file: " + jarFile
def args = ["java",
"-Dspring.profiles.active=dev",
"-jar",
jarFile.path]
def pb = new ProcessBuilder(args)
pb.redirectErrorStream(true)
final process = pb.start()
final output = new StringBuffer()
process.consumeProcessOutputStream(output)
def status = Status.TIMED_OUT
for (i in 0..20) {
Thread.sleep(3000)
if (hasServerExited(process)) {
status = Status.DOWN
break
}
try {
status = checkServerStatus()
break
}
catch (ex) {
logger.debug "Error accessing app health URL: " + ex.message
}
}
if (status == Status.TIMED_OUT) process.destroy()
if (status != Status.UP) {
logger.info "Server output"
logger.info "-------------"
logger.info output.toString()
throw new RuntimeException("Server failed to start up. Status: ${status}")
}
}
protected Status checkServerStatus() {
URL url = new URL("$baseUrl/health")
logger.info("Health Check --> ${url}")
HttpURLConnection connection = url.openConnection()
connection.readTimeout = 300
def obj = new JsonSlurper().parse(
connection.inputStream,
connection.contentEncoding ?: "UTF-8")
connection.inputStream.close()
return obj.status == "UP" ? Status.UP : Status.DOWN
}
protected boolean hasServerExited(Process process) {
try {
process.exitValue()
return true
} catch (IllegalThreadStateException ex) {
return false
}
}
}
请注意,将服务器放在一个线程上运行非常重要,否则任务永远不会结束。停止服务器的任务更加直接:
class StopApp extends DefaultTask {
@Input
String urlPath
@TaskAction
def stopApp(){
def url = new URL(urlPath)
def connection = url.openConnection()
connection.requestMethod = "POST"
connection.doOutput = true
connection.outputStream.close()
connection.inputStream.close()
}
}
它基本上会向 /shutdown URL 发送一个空的 POST 请求来停止正在运行的服务器。