用java发送http请求
一种方式是用开源组件httpclient另一种是用jdk自带的类，下面只说下自带类的用法：
package test;import java.io.IOException;import java.io.OutputStreamWriter;import java.net.HttpURLConnection;import java.net.URL; public class Test { public static void main(String[] args) throws IOException {URL url = new URL("http://localhost:8080/resttest/services/Order /3");HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();httpCon.setDoOutput(true);httpCon.setRequestMethod("POST");OutputStreamWriter out = new OutputStreamWriter( httpCon.getOutputStream());System.out.println(httpCon.getResponseCode());System.out.println(httpCon.getResponseMessage());out.close(); }}
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