post请求

post请求时，请求参数写入输出流中，url地址除去拼接参数后的地址，如：

"http://169.254.244.136/Web2/servlet/Login?name=" + URLEncoder.encode(name) + "&pass=" + pass;

正确地址：

String path = "http://169.254.244.136/Web2/servlet/Login"。

try {

URL url = new URL(path);

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

 

conn.setRequestMethod("POST");

conn.setConnectTimeout(8000);

conn.setReadTimeout(8000);

 

//添加post请求头中自动添加的属性

//流里的数据的mimetype

conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

String content = "name=" + URLEncoder.encode(name) + "&pass=" + pass;//请求参数

//流里数据的长度

conn.setRequestProperty("Content-Length", content.length() + "");

//打开连接对象的输出流

conn.setDoOutput(true);

//获取连接对象的输出流

OutputStream os = conn.getOutputStream();

//把数据写入输出流中

os.write(content.getBytes());

 

if(conn.getResponseCode() == 200){

InputStream is = conn.getInputStream();

String text = Tools.getTextFromStream(is);

 

Message msg = handler.obtainMessage();

msg.obj = text;

handler.sendMessage(msg);

}

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}