main函数加载jetty，及java请求url

建立servlet处理请求protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {    // TODO Auto-generated method stub    InputStream s=request.getInputStream();    String a="";    BufferedReader reader=new BufferedReader(new InputStreamReader(s));    String str;    while ((str = reader.readLine()) != null){        System.out.println(str);        a=str;    }    reader.close();    response.getWriter().write(a);}客户端代码public static void main(String[] args) throws IOException {    // TODO Auto-generated method stub    String host="http://localhost:8080/test/hello";    HttpURLConnection conn;    try {        URL url=new URL(host);        conn = (HttpURLConnection)url.openConnection();        conn.setDoOutput(true);        conn.setDoInput(true);        conn.setRequestMethod("POST");        conn.setUseCaches(false);        conn.setInstanceFollowRedirects(true);        conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");        conn.connect();        DataOutputStream out = new DataOutputStream(conn.getOutputStream());        String hello=URLEncoder.encode("hello", "utf-8");        out.writeBytes(hello);        out.flush();        out.close();         InputStream in=conn.getInputStream();        BufferedReader reader=new BufferedReader(new InputStreamReader(in));        String str;        while ((str = reader.readLine()) != null){            System.out.println(str);        }        reader.close();        conn.disconnect();    } catch (MalformedURLException e) {        // TODO Auto-generated catch block        e.printStackTrace();    }}

加载jetty及webxml设置端口
public static void main(String[] args) {
// TODO Auto-generated method stub
Server server=new Server(8080);
WebAppContext context = new WebAppContext();
context.setDescriptor(“E:/work/test/src/main/webapp/WEB-INF/web.xml”);
context.setResourceBase(“E:/work/test/src/main/webapp”);
context.setContextPath(“/test”);
context.setParentLoaderPriority(true);
server.setHandler(context);
try {
server.start();
server.join();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}