向Internet发送xml数据

向Internet发送xml数据

利用HttpURLConnection对象,我们可以向网络发送xml数据.

StringBuilder xml = new StringBuilder();

xml.append("<?xmlversion="1.0" encoding="utf-8" ?>");

xml.append("<M1V=10000>");

xml.append("<U I=1D="N73">中国</U>");

xml.append("</M1>");

byte[] xmlbyte =xml.toString().getBytes("UTF-8");

URL url = newURL("http://localhost:8080/itcast/contanctmanage.do?method=readxml");

HttpURLConnection conn =(HttpURLConnection) url.openConnection();

conn.setConnectTimeout(5*1000);

conn.setDoOutput(true);//允许输出

conn.setUseCaches(false);//不使用Cache

conn.setRequestMethod("POST");

conn.setRequestProperty("Connection","Keep-Alive");//维持长连接

conn.setRequestProperty("Charset","UTF-8");

conn.setRequestProperty("Content-Length",String.valueOf(xmlbyte.length));

conn.setRequestProperty("Content-Type","text/xml; charset=UTF-8");

DataOutputStream outStream =new DataOutputStream(conn.getOutputStream());

outStream.write(xmlbyte);//发送xml数据

outStream.flush();

if (conn.getResponseCode()!= 200) throw new RuntimeException("请求url失败");

InputStream is =conn.getInputStream();//获取返回数据

String result =readAsString(is,"UTF-8");

outStream.close();

（编辑：李大同）

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