在这里介绍一个关于发送和接受http的示例,关于URL和HttpURLConnection类请参考jdk.
String method = "POST";
String content = "<name>dd</name>";
URL url = new URL(http://192.168.100.77/test.jsp);
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod(method);
urlConnection.setDoOutput(true);//URL 连接可用于输入和/或输出
urlConnection.setDoInput(true);//URL 连接可用于输入和/或输出
urlConnection.setUseCaches(false);
//设置http头
urlConnection.addRequestProperty("POST","/ HTTP/1.1");
urlConnection.addRequestProperty("Content-Typeapplication/client");
urlConnection.addRequestProperty("Content-Lengt","1000");
//设置包体
urlConnection.getOutputStream().write(content.toString().getBytes());
urlConnection.getOutputStream().flush();
urlConnection.getOutputStream().close();
//取得返回包体
InputStream in = urlConnection.getInputStream();
BufferedReader bufferedReader = new BufferedReader(
new InputStreamReader(in));//取得返回内容
httpResponser.contentCollection = new Vector<String>();
StringBuffer temp = new StringBuffer();
String line = bufferedReader.readLine();
System.out.println("lenth:"+urlConnection.getContentLength());
while (line != null) {
httpResponser.contentCollection.add(line);
temp.append(line).append(" ");
line = bufferedReader.readLine();
}
//取得返回http头信息
String content-type = urlConnection.getHeaderField("Content-Type");
String contentLenth = urlConnection.getHeaderField("Content-Length");
Sring code = urlConnection.getHeaderField("errorcode");