Verrrrry simple HTTP server in Java. Well, not as simple as golang or python, but well, because java.

To create the JAR file

mvn clean package

To run the server

java -cp target/AytchTeeTeePee-1.0-SNAPSHOT.jar rocks.zipcode.ZipWebServer

To run the python client

python3 src/main/java/rocks/zipcode/client.py

Hey, Data, What would we have to do to make this a work with a url like below?

python3 src/main/java/rocks/zipcode/client.py http://localhost:8000/foo

To run the Java client

java -cp target/AytchTeeTeePee-1.0-SNAPSHOT.jar rocks.zipcode.WebClient http://localhost:8000/bar

# or
java -cp target/AytchTeeTeePee-1.0-SNAPSHOT.jar rocks.zipcode.WebClient

In other languages

• In python3

in python3

```python
bash$ python3 -m http.server 9000

And that's all. (seriously, will start serving files from CWD)

• In golang

This is pretty simple.

package main

import (
    "net/http"
)

// create a handler struct
type HttpHandler struct{}

// implement `ServeHTTP` method on `HttpHandler` struct
func (h HttpHandler) ServeHTTP(res http.ResponseWriter, req *http.Request) {
    // create response binary data
    data := []byte("Hello World!") // slice of bytes
    // write `data` to response
    res.Write(data)
}

func main() {

    // create a new handler
    handler := HttpHandler{}

    // listen and serve
    http.ListenAndServe(":9000", handler)

}

or again in go

package main

import (
	"fmt"
	"io"
	"log"
	"net"
	"net/http"
	"os"
)

func main() {
	http.HandleFunc("/hello", func(w http.ResponseWriter, r *http.Request) {
		fmt.Fprint(w, "Hello, playground")
	})

	log.Println("Starting server...")
	l, err := net.Listen("tcp", "localhost:8080")
	if err != nil {
		log.Fatal(err)
	}
	go func() {
		log.Fatal(http.Serve(l, nil))
	}()

	log.Println("Sending request...")
	res, err := http.Get("http://localhost:8080/hello")
	if err != nil {
		log.Fatal(err)
	}

	log.Println("Reading response...")
	if _, err := io.Copy(os.Stdout, res.Body); err != nil {
		log.Fatal(err)
	}
}