HttpUrlConnection的post请求

new Thread(){

public void run() {


//?userName="+name+"&passWord="+pwd

String path="http://169.254.135.196:8080/LogServer/servlet/LogServlet";

String data ="userName="+name+"&passWord="+pwd;
//参数是请求的地址

try {
URL url = new URL(path);
//得到HttpURLConnection 对像
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
//设置它的请求方式
connection.setRequestMethod("POST");
//设轩它的连接超时时间
connection.setConnectTimeout(5000);

//代表允客户端给服务器写内容
connection.setDoInput(true);

//把参数写给服务器
connection.getOutputStream().write(data.getBytes());


//得到服务器给客户端返回的状态码  200   304 307   404   500
int responseCode = connection.getResponseCode();


baos = new ByteArrayOutputStream();

//请求服务器成功
if(responseCode==200){
//得到服务器返回的流   其实就是数据
InputStream is = connection.getInputStream();

byte[] arr = new byte[1024];

int len;

while((len=is.read(arr))!=-1){
//baos.write(arr);

baos.write(arr, 0, len);
}
}

} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

/**
* 在子线程里 不能更新ui和toast
*/
runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(MainActivity.this, baos.toString(), 0).show();
}
});



};
}.start();