Spark-HTTP请求处理

<dependency>
      <groupId>com.sparkjava</groupId>
      <artifactId>spark-core</artifactId>
      <version>2.9.0</version>
</dependency>

package com.example;

import org.junit.jupiter.api.Test;
import spark.Spark;

public class SparkTest {


    @Test
   public void testGet(){
        Spark.port(9000);
        Spark.get("/hello",(reg,res)->"test");

        System.out.println("start");
        try {
            Thread.sleep(50000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("end");

   }


}