java - Where to start when trying to retrieve data with requests and responses coded in XML and HTTP is the protocol -


to start, newbie programmer , have taken on summer job after finishing first year in college year. have been asked write code program requests , responses coded in xml. have been told requests made via post command , both request parameters , responses carried out in body of http sent , received specific url. have been given command format example:

<?xml version="1.0" encoding="utf-8"?>    <cmd action="read_val" user="username" password="*****">      <val cid="0" node="1" vid="100" set="5" nodetype="16"/>    </cmd>

i have searched high , low , have found loads of different information on topic there technical me @ moment. need 'baby steps' help. small company , there no other programmers ask questions , advice.

i learning java in college , have used site many times , have found useful. can open sockets, bind sockets etc in java , read in data input on forms use above code. how connect java know xml above. know in on head have been trying figure out last 3-4 weeks no joy , head burst.

at other end of url monitor capturing ongoing data such pressure , temperature. connection made being used read in data @ set interval , stored in database. if data going system.out.println manage rest!!

i have looked @ many examples , read information don't know begin - use netbeans , java or different need know.

sorry , in advance!

seems trying "consuming xml rest service" (this might want google).

there several ways it, , depends on libraries want use.

a start splitting problem several parts.

  • creating class contains information need send. (so can manipulated in java)

  • mapping class xml. (so can transform java objects xml , vice-versa)

  • consuming service. (this sending post request server xml data on body)

there several libraries can achieve this. start using jaxb (https://docs.oracle.com/javase/tutorial/jaxb/intro/) first 2 steps, , creating rest client using either apache httpclient, spring's resttemplate or jersey.


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