A brief analysis of nodejs and Java access to remote server services

This article brings you a brief analysis of nodejs and Java services for accessing remote servers. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

Since this article uses nodejs and Java to access remote server services, let’s first use another programming language, SAP’s ABAP (the programming language I use most in my daily work) to develop a service Bar.

This is the class I use to implement services in ABAP programming language: ZCL_DIS_HTTP_HANDLER

##This class implements an interface defined in IF_HTTP_EXTENSION A method HANDLE_REQUEST.

You don’t have to be confused by the unfamiliar syntax of ABAP. In fact, it is similar to Java Servlet.

I drew a picture:

Mine This remote service is very simple. No matter what the caller sends, it simply returns a text: HELLO WORLD.

Now we will use nodejs and Java to consume.

nodejs

##Look at the nodejs code.

The following code passes WANGJER into the Buffer as my username and 123456 as the password. The login method used is Basic Authentication.

var request = require('request');

var getTokenOptions = {

url: "https://<p>Execution results: It took a total of 1.4 seconds including network overhead. </p><p></p><p style="text-align: center;"><span class="img-wrap"><img src="/static/imghw/default1.png" data-src="https://img.php.cn//upload/image/431/174/207/1540196741948139.jpg" class="lazy" title="1540196741948139.jpg" alt="A brief analysis of nodejs and Java access to remote server services"></span></p>java<p><strong></strong>WANGJER in the code below is my username and 123456 is the password. The login method used is Basic Authentication. </p><pre class="brush:php;toolbar:false">package connectivity;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import org.apache.commons.codec.binary.Base64;

import java.util.stream.Collectors;

import org.apache.http.HttpResponse;

import org.apache.http.client.ClientProtocolException;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.impl.client.HttpClientBuilder;

public class OPSystemConnectivity

{

static public void main(String[] arg){

final HttpGet get = new HttpGet("https://<p>The execution result is almost as time-consuming as nodejs. </p><p> Note that the method introduced in this article can not only access the services of the remote server, but also achieve the goal of resource downloading: such as downloading pictures, mp3, etc. on a certain server. You only need to pass the URL of the corresponding resource into the system. </p><p></p><p class="comments-box-content"></p>

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