通过套接字组合Java和Node.js

Question

I have the following Node.js code:

var http = require('http');

http.createServer(function(req, res)) {
    console.log("URL request"+req.url);
    res.writeHead(200, {'Content-Type':'text/plain'});
    res.end('Hello World\n');
}).listen(9898, '127.0.0.1');

console.log('Server locally running at http://127.0.0.1:9898/');

I am using the Socket class in Java to make a socket that also connects to port 9898. I want whatever the Node.js writes (in this case 'Hello World'), to be processed by a Java class. So far, this is what I have for the Java class:

Socket s = new Socket(serverAddress, 9898);
BufferedReader input =
        new BufferedReader(new InputStreamReader(s.getInputStream()));

My question is how do I get the 'Hello World' to be read by the Java code, so that whenever I call System.out.println(input.readLine()) , it prints 'Hello World'?

Answer 1

you had an extra ')' on the third line, but your code seems to otherwise work:

var http = require('http');

http.createServer(function(req, res) {
    console.log("URL request"+req.url);
    res.writeHead(200, {'Content-Type':'text/plain'});
    res.end('Hello World\n');
}).listen(9898, '127.0.0.1');

console.log('Server locally running at http://127.0.0.1:9898/');

i guess you need to create some java functionality to make a http request to the url:port the node server is running on. it probably wont be as simple as 'input.readLine()'.

maybe something like this will help for getting the java code to get the data from node:

How can I get an http response body as a string in Java?