giljae

$curl -s "<https://get.sdkman.io>" | bash
$source "$HOME/.sdkman/bin/sdkman-init.sh"

giljae

package com.giljae.springnativeexample;

import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.reactive.AutoConfigureWebTestClient;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.web.reactive.server.WebTestClient;

@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@AutoConfigureWebTestClient

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package com.giljae.springnativeexample;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.web.reactive.function.server.RouterFunction;
import org.springframework.web.reactive.function.server.ServerResponse;
import reactor.core.publisher.Mono;
import static org.springframework.web.reactive.function.server.RouterFunctions.route;
import static org.springframework.web.reactive.function.server.ServerResponse.ok;

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.4.4</version>
		<relativePath /> <!-- lookup parent from repository -->

giljae

docker container run ch02-hello-world

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@Bean
public io.opentracing.Tracer jaegerTracer() {
  Builder builder = new Builder("spring-boot",
      new RemoteReporter(new HttpSender("http://jaeger-collector.istio-system:14268/api/traces"), 10,
      65000, new Metrics(new StatsFactoryImpl(new NullStatsReporter()))),
      new ConstSampler(true))
      .registerInjector(Builtin.HTTP_HEADERS, new B3TextMapCodec())
      .registerExtractor(Builtin.HTTP_HEADERS, new B3TextMapCodec());
  return builder.build();
}

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@RestController
public class HelloController {

    @Autowired
    private RestTemplate restTemplate;

    @RequestMapping(value = "/hello")
    public String hello() {
        return "Hello from Spring Boot!";
    }

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sum=0
for i in range(3,1000):
    if i%3==0 or i%5==0:
        sum+=i
print(sum)

giljae

import subprocess

def call(value):
	cmd = ['java','-jar','{jar 파일 경로}','{arg}',value]
	fd_open = subprocess.Popen(cmd,stdout=subprocess.PIPE,shell=False).stdout
	result = fd_open.read().strip()
	fd_open.close()
	return result

def main():

giljae

import subprocess

def call(value):
  cmd = ['java','-jar','{jar 파일 경로}','{arg}',value]
  return subprocess.check_output(cmd,shell=False)

def main():
  result = call("test")
  print "result