Java REST Client

標籤：content   client   row   reader   service   tcl   ati   set   cep   

GET:

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;public class GETRestClient {    private static final String targetURL = "http://localhost:8080/path/get.serv";    public static void main(String[] args) {        try {            URL restServiceURL = new URL(targetURL);            HttpURLConnection httpConnection = (HttpURLConnection) restServiceURL.openConnection();            httpConnection.setRequestMethod("GET");            httpConnection.setRequestProperty("Accept", "application/json");            if (httpConnection.getResponseCode() != 200) {                throw new RuntimeException("HTTP GET Request Failed with Error code : "+ httpConnection.getResponseCode());            }            BufferedReader responseBuffer = new BufferedReader(                    new InputStreamReader((httpConnection.getInputStream())));            String output;            System.out.println("Output from Server:  \n");            while ((output = responseBuffer.readLine()) != null) {                System.out.println(output);            }            httpConnection.disconnect();        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }}

POST:

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;public class POSTRestClient {    private static final String targetURL = "http://localhost:8080/path/post.serv";    public static void main(String[] args) {        try {            URL targetUrl = new URL(targetURL);            HttpURLConnection httpConnection = (HttpURLConnection) targetUrl.openConnection();            httpConnection.setDoOutput(true);            httpConnection.setRequestMethod("POST");            httpConnection.setRequestProperty("Content-Type", "application/json");            String input = "{\"id\":1,\"no\":\"no0003\",\"name\":\"jack\"}";            OutputStream outputStream = httpConnection.getOutputStream();            outputStream.write(input.getBytes());            outputStream.flush();            if (httpConnection.getResponseCode() != 200) {                throw new RuntimeException("Failed : HTTP error code : " + httpConnection.getResponseCode());            }            BufferedReader responseBuffer = new BufferedReader(                    new InputStreamReader((httpConnection.getInputStream())));            String output;            System.out.println("Output from Server:\n");            while ((output = responseBuffer.readLine()) != null) {                System.out.println(output);            }            httpConnection.disconnect();        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }}

 

Java REST Client