Java extrae datos de páginas web y los almacena en una base de datos.
Función totf(tfbh){
ubicación.href( "Typhoon.aspx?id = "+tfbh);
}
Necesita obtener datos de aspx, los datos deben almacenarse en la base de datos, pero no se pueden obtener en la página.
Creo que es posible simular el envío de solicitudes a Typhoon.aspx a través de un bucle. Id="+XXX" y luego analice el paquete de respuesta para obtener información detallada.
La siguiente página trata sobre la simulación del envío de solicitudes.
/blog/195544
Espero que te sea de ayuda.
Escribí un fragmento de código para obtener un conjunto de datos.
//Obtener contenido de Typhoon a través de parámetros
Cadena estática pública getTyphoon(String param) {
URL url = null
Pruebe {
url =nueva URL(param);
} catch(malformedurexception e){
e . printstacktrace();
.
Conexión HttpURLConnection = null
InputStream = null
Pruebe {
conexión = (http urlconnection)URL abrir conexión ();
es = conexión . getinputstream();
} catch (IOException e) {
e .
BufferedInputStream bis = new BufferedInputStream(is);
int len = 0;
byte[] buf_all = nuevo byte[0];< / p>
Prueba {
while (verdadero) {
byte[] buf1 = nuevo byte[4096];
byte[]buf 2 = buf _ all;
len = bis read(buf 1);
if(len <= 0){
descanso;
}
buf_all = nuevo byte [len+buf 2. longitud];
System.arraycopy(buf2, 0, buf_all, 0, buf 2. longitud);
System.arraycopy(buf1, 0, buf_all, buf2.length, len);
}
} catch (IOException e) {
e.printstacktrace();
}
String content = null
Pruebe {
content = new String(buf_all, "utf-8");
} catch(UnsupportedEncodingException e){
e . printstacktrace();
}
int. startIndex = contenido . índice de(" var ary 0 = ")+9;
contenido = substring(startIndex);
int end index = contenido .index de(" var aryb 0 = ");
contenido = content.substring(0, índice final);
Devolver contenido;
}
El resultado es así:
[['200906',' 2009-07-19 20:00:00',' 23.8',' 109.6','',' 15 ','' ,'
['200906',' 2009-07-19 15: 00',' 23.5',' 11',' 993',' 65438'.
[' 2009
06',' 2009-07-19 14:00',' 23.3',' 11.2','',' 65438+
['200906',' 2009-07-19 13:00' ,' 23.3',' 11.5',' 990',' 65438'.
['200906',' 2009-07-19 12: 00',' 23.2',' 11.8',' 990 ',' 65438'.
['200906',' 2009-07-19 11: 00',' 23.2',' 11',' 987'.
[' 200906',' 2009-07-19 10: 00',' 23.2',' 112.4',' 987',' 18'.
['200906',' 2009-07-19 09: 00', '23', '112.6', '987', '20', '25', 'NO.
['200906',' 2009-07-19 08:00:00',' 22.9',' 112.9',' 987',' 20','',''
['200906','2009-07-19 07:00:00','22.9','113.2','985','23','25','Noroeste'
['200906','2009-07-19 06:00:00','22.8','113.4','982','25','25','Noroeste'
[ '200906','2009-07-19 05:00','22.7','113.7','980','28','25','Noroeste.
['200906','2009-07-19 04:00:00','22.7','114','975','30','25','Noroeste.
['200906','2009-07-19 03:00:00','22.7','114.2','975','33','25','Noroeste.
['200906',' 2009-07-19 02:00:00',' 22.6',' 114.5',',' 35',','',' 26438.
['200906',' 2009-07-19 01:00',' 22.5',' 114.5',' 970',' 35',' 28'
['200906' ,'2009-07-19 00:00','22.5','114.8','965','38','28','Noroeste.
['200906',' 2009-07-18 23:00:00',' 22.4',' 115.1',',' 38',','
[ '200906','2009-07-18 22:00:00','22.3','115.5','965','38','25','Noroeste.
['200906',' 2009-07-18 21:00',' 22.2',' 115.7',' 965',' 38',' 25'.
['200906',' 2009-07-18 20: 00',' 22.2',' 116','',' 35','',' 260'.
['200906', ' 2009-07-18 19: 00',' 22.2',' 116.2',' 970',' 35',' 25'.
['200906',' 2009-07-18 18 : 00',' 22.1',' 116.5',' 970',' 35'
['200906',' 2009-07-18 17: 00',' 22',' 116.7', ' 970',' 35',' 25'.
['200906',' 2009-07-18 16:00',' 21.9',' 116.9',' 970',' 35'
['200906',' 2009-07-18 15:00',' 21.8',' 11',' 970'.
['200906',' 2009- 07-18 14:00',' 21.7',' 117.2',' 970',' 35'
['200906',' 2009-07-18 13:00',' 21.7', ' 117.4',' 970',' 35'
['200906',' 2009-07-18 12:00',' 21.6',' 117.5',' 975',' 33'
['200906',' 2009-07-18 11: 00',' 21.6',' 117.7',' 975'.
['200906',' 2009-07 -18 10:00',' 21.6',' 117.9',' 975',' 33'
['200906',' 2009-07-18 09:00:00',' 21.5' ,' 118.2',' 975',' 33',' 25'.
['200906',' 2009-07-18 08:00:00',' 21.4',' 118.3', ' 975',' 33',' 25'.
['200906',' 2009-07-18 07:00:00',' 21.4',' 118.5',' 975',' 33',' 25'.
['200906',' 2009-07-18 06:00:00',' 21.3',' 118.7',' 975',' 33',' 25 '.
['200906',' 2009-07-18 05:00:00',' 21.2',' 119',' 975',' 33',','
['200906',' 2009-07-18 04:00:00',' 21.2',' 119.2',' 978',' 30',' 25'.
[' 200906',' 2009-07-18 03:00:00',' 21.1',' 119.4',' 978',' 30'
['200906',' 2009-07-18 02 : 00:00',' 21',' 119.6',' 978',' 30',','
['200906',' 2009-07-18 01:00',' 21 ',' 120.1',' 978',' 30'.
['200
906', '2009-07-18 00:00', '20.9', '120.3', '978', '30', '25', 'Oeste-Noroeste', '
[' 200906', '2009-07-17 23:00:00', '20.8', '120.5', '978', '30', '20', 'Oeste-Noroeste', '
['200906','2009-07-17 22:00:00','20.7','121','978','30','20','oeste-noroeste.
['200906',' 2009-07-17 21:00',' 20.7',' 121.2',' 978', '30',' 20'.
['200906','2009-07-17 20:00','20.6','121.5','978','30','20','Noroeste.
['200906',' 2009-07-17 19:00',' 20.4',' 121.8',' 980',' 28',' 20'.
['200906',' 2009-07-17 18:00',' 20.3',' 121.9',' 980',' 28',' 20'.
['200906',' 2009 -07-17 17:00',' 20.2',' 122.1',' 980',' 28',' 20'
['200906',' 2009-07-17 14:00' ,' 19.5',' 122.7','',' 25','','
['200906',' 2009-07-17 11: 00',' 18.9',' 123.3' ,' 985',' 25'
['200906',' 2009-07-17 08:00:00',' 18.6',' 123.6',' 994',' 20',' ','
['200906',' 2009-07-17 05:00:00',' 18.4',' 123.9',' 996',' 18',' 65438.
['200906',' 2009-07-17 02:00:00',' 17.9',' 124.1',' 996',' 18'
['200906',' 2009-07-16 23:00:00',' 17.6',' 124.6',' 996',' 18',' 65438.
['200906',' 2009-07-16 20 : 00: 00',' 17.4',' 124.7',' 996',' 18',''
El desmontaje de cadenas es demasiado complicado, no quiero escribirlo.
¿Siempre y cuando el parámetro sea /Typhoon.aspx? id=
La identificación va seguida del nombre en clave del tifón, solo escribe el punto.