一、通过GET方式去提交数据:
public void loginGet(View view){
//例如:
String uname=et_main_uname.getText().toString();
String upass=et_main_upass.getText().toString();
String path="http://193.168.2.141:7788/demo/login.do";
new MyGetTask().execute(uname,upass,path);
}
class MyGetTask extends AsyncTask{
@Override
protected Object doInBackground(Object[] params) {
String uname=params[0].toString();
String upass=params[1].toString();
String path=params[2].toString();
try {
URL url=new URL(path+"?uname="+uname+"&upass="+upass);
HttpURLConnection connection= (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setConnectTimeout(5000);
if(connection.getResponseCode()==200){
InputStream is=connection.getInputStream();
BufferedReader br=new BufferedReader(new InputStreamReader(is));
String s=br.readLine();
return s;
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Object o) {
super.onPostExecute(o);
String s= (String) o;
Toast.makeText(MainActivity.this, s, Toast.LENGTH_SHORT).show();
}
}
二、通过POST提交数据
public void loginPost(View view){
String uname=et_main_uname.getText().toString();
String upass=et_main_upass.getText().toString();
String path="http://193.168.2.141:7788/demo/login.do";
new MyPostTask().execute(uname,upass,path);
}
class MyPostTask extends AsyncTask{
@Override
protected Object doInBackground(Object[] params) {
String uname=params[0].toString();
String upass=params[1].toString();
String path=params[2].toString();
try {
URL url=new URL(path);
HttpURLConnection conn= (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setConnectTimeout(5000);
//admin 123
//uname=admin&upass=123456
String s="uname="+uname+"&upass="+upass;
//添加请求头
conn.setRequestProperty("Content-Length",s.length()+"");
conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");//固定的写法
conn.setDoOutput(true);//允许对外输出数据
OutputStream os=conn.getOutputStream();
os.write(s.getBytes());
if(conn.getResponseCode()==200){
InputStream is=conn.getInputStream();
BufferedReader br=new BufferedReader(new InputStreamReader(is));
String str=br.readLine();
return str;
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Object o) {
super.onPostExecute(o);
String s= (String) o;
Toast.makeText(MainActivity.this,s, Toast.LENGTH_SHORT).show();
}
}
三、使用第三方AsyncHttpClient提交数据
public void loginAsyncHttpClient(View view){
String uname=et_main_uname.getText().toString();
String upass=et_main_upass.getText().toString();
String path="http://193.168.2.141:7788/G160628_Server/login.do";
AsyncHttpClient ahc=new AsyncHttpClient();
RequestParams params=new RequestParams();
params.put("uname",uname);
params.put("upass",upass);
ahc.post(this,path,params,new TextHttpResponseHandler(){
@Override
public void onFailure(int statusCode, Header[] headers, String responseBody, Throwable error) {
super.onFailure(statusCode, headers, responseBody, error);
}
@Override
public void onSuccess(int statusCode, Header[] headers, String responseBody) {
super.onSuccess(statusCode, headers, responseBody);
Toast.makeText(MainActivity.this, responseBody, Toast.LENGTH_SHORT).show();
}
});
}