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Patryk Czarnik
javab_20230617
Commits
8b4c3d1f
Commit
8b4c3d1f
authored
Jul 16, 2023
by
Patryk Czarnik
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Plain Diff
Refaktoryzacja PobieranieXML i zmiana nazw metod
parent
3fdf0a54
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Showing
4 changed files
with
41 additions
and
15 deletions
+41
-15
PobieranieWalut.java
...rc/main/java/com/example/demo/waluty/PobieranieWalut.java
+4
-1
PobieranieXML.java
.../src/main/java/com/example/demo/waluty/PobieranieXML.java
+29
-11
WalutyController.java
...c/main/java/com/example/demo/waluty/WalutyController.java
+6
-1
WalutyRest.java
...ing/src/main/java/com/example/demo/waluty/WalutyRest.java
+2
-2
No files found.
PC25-Spring/src/main/java/com/example/demo/waluty/PobieranieWalut.java
View file @
8b4c3d1f
...
@@ -2,6 +2,8 @@ package com.example.demo.waluty;
...
@@ -2,6 +2,8 @@ package com.example.demo.waluty;
public
interface
PobieranieWalut
{
public
interface
PobieranieWalut
{
TabelaWalut
pobierzTabele
(
String
data
);
TabelaWalut
pobierzBiezaceKursy
();
TabelaWalut
pobierzArchiwalneKursy
(
String
data
);
}
}
\ No newline at end of file
PC25-Spring/src/main/java/com/example/demo/waluty/PobieranieXML.java
View file @
8b4c3d1f
...
@@ -27,23 +27,41 @@ import org.xml.sax.SAXException;
...
@@ -27,23 +27,41 @@ import org.xml.sax.SAXException;
*/
*/
@Service
@Service
public
class
PobieranieXML
implements
PobieranieWalut
{
public
class
PobieranieXML
implements
PobieranieWalut
{
private
static
final
String
ADRES
=
"http://api.nbp.pl/api/exchangerates/tables"
;
@Override
/** Pobiera tabelę z bieżącymi kursami walut.
public
TabelaWalut
pobierzTabele
(
String
data
)
{
* Zwraca null w przypadku błędów.
String
adres
=
"https://api.nbp.pl/api/exchangerates/tables/a"
;
*/
if
(
data
!=
null
)
{
public
TabelaWalut
pobierzBiezaceKursy
()
{
adres
+=
"/"
+
data
;
Document
doc
=
wczytajXmlZAdresu
(
ADRES
+
"/a?format=xml"
);
return
tabelaZXml
(
doc
);
}
public
TabelaWalut
pobierzArchiwalneKursy
(
String
data
)
{
Document
doc
=
wczytajXmlZAdresu
(
ADRES
+
"/A/"
+
data
+
"?format=xml"
);
return
tabelaZXml
(
doc
);
}
}
adres
+=
"?format=xml"
;
private
Document
wczytajXmlZAdresu
(
String
adres
)
{
// Document Object Model
try
{
try
{
DocumentBuilderFactory
dbf
=
DocumentBuilderFactory
.
newInstance
();
DocumentBuilderFactory
dbf
=
DocumentBuilderFactory
.
newInstance
();
DocumentBuilder
db
=
dbf
.
newDocumentBuilder
();
DocumentBuilder
db
=
dbf
.
newDocumentBuilder
();
Document
doc
=
null
;
URL
url
=
new
URL
(
adres
);
URL
url
=
new
URL
(
adres
);
try
(
InputStream
in
=
url
.
openStream
())
{
try
(
InputStream
in
=
url
.
openStream
())
{
doc
=
db
.
parse
(
in
);
return
db
.
parse
(
in
);
}
}
catch
(
ParserConfigurationException
|
SAXException
|
IOException
e
)
{
e
.
printStackTrace
();
return
null
;
}
}
}
private
TabelaWalut
tabelaZXml
(
Document
doc
)
{
if
(
doc
==
null
)
return
null
;
try
{
XPathFactory
xpf
=
XPathFactory
.
newInstance
();
XPathFactory
xpf
=
XPathFactory
.
newInstance
();
XPath
xpath
=
xpf
.
newXPath
();
XPath
xpath
=
xpf
.
newXPath
();
...
@@ -52,9 +70,9 @@ public class PobieranieXML implements PobieranieWalut {
...
@@ -52,9 +70,9 @@ public class PobieranieXML implements PobieranieWalut {
String
nazwaTabeli
=
xpath
.
evaluate
(
"//Table"
,
doc
);
String
nazwaTabeli
=
xpath
.
evaluate
(
"//Table"
,
doc
);
String
numerTabeli
=
xpath
.
evaluate
(
"//No"
,
doc
);
String
numerTabeli
=
xpath
.
evaluate
(
"//No"
,
doc
);
LocalDate
data
Tabeli
=
LocalDate
.
parse
(
xpath
.
evaluate
(
"//EffectiveDate"
,
doc
));
LocalDate
data
=
LocalDate
.
parse
(
xpath
.
evaluate
(
"//EffectiveDate"
,
doc
));
TabelaWalut
tabela
=
new
TabelaWalut
(
nazwaTabeli
,
numerTabeli
,
data
Tabeli
);
TabelaWalut
tabela
=
new
TabelaWalut
(
nazwaTabeli
,
numerTabeli
,
data
);
NodeList
rates
=
(
NodeList
)
xpath
.
evaluate
(
"//Rate"
,
doc
,
XPathConstants
.
NODESET
);
NodeList
rates
=
(
NodeList
)
xpath
.
evaluate
(
"//Rate"
,
doc
,
XPathConstants
.
NODESET
);
final
int
n
=
rates
.
getLength
();
final
int
n
=
rates
.
getLength
();
...
@@ -68,7 +86,7 @@ public class PobieranieXML implements PobieranieWalut {
...
@@ -68,7 +86,7 @@ public class PobieranieXML implements PobieranieWalut {
}
}
return
tabela
;
return
tabela
;
}
catch
(
ParserConfigurationException
|
SAXException
|
XPathExpressionException
|
IO
Exception
e
)
{
}
catch
(
XPathExpression
Exception
e
)
{
e
.
printStackTrace
();
e
.
printStackTrace
();
return
null
;
return
null
;
}
}
...
...
PC25-Spring/src/main/java/com/example/demo/waluty/WalutyController.java
View file @
8b4c3d1f
...
@@ -28,7 +28,12 @@ public class WalutyController {
...
@@ -28,7 +28,12 @@ public class WalutyController {
@GetMapping
(
"/waluty"
)
@GetMapping
(
"/waluty"
)
public
String
wyswietlWaluty
(
String
data
,
Model
model
)
{
public
String
wyswietlWaluty
(
String
data
,
Model
model
)
{
TabelaWalut
tabela
=
pobieracz
.
pobierzTabele
(
data
);
TabelaWalut
tabela
;
if
(
data
==
null
)
{
tabela
=
pobieracz
.
pobierzBiezaceKursy
();
}
else
{
tabela
=
pobieracz
.
pobierzArchiwalneKursy
(
data
);
}
model
.
addAttribute
(
"tabela"
,
tabela
);
model
.
addAttribute
(
"tabela"
,
tabela
);
return
"waluty.html"
;
return
"waluty.html"
;
}
}
...
...
PC25-Spring/src/main/java/com/example/demo/waluty/WalutyRest.java
View file @
8b4c3d1f
...
@@ -14,13 +14,13 @@ public class WalutyRest {
...
@@ -14,13 +14,13 @@ public class WalutyRest {
@GetMapping
@GetMapping
public
TabelaWalut
wyswietlWaluty
()
{
public
TabelaWalut
wyswietlWaluty
()
{
TabelaWalut
tabela
=
pobieracz
.
pobierz
Tabele
(
null
);
TabelaWalut
tabela
=
pobieracz
.
pobierz
BiezaceKursy
(
);
return
tabela
;
return
tabela
;
}
}
@GetMapping
(
"/{data}"
)
@GetMapping
(
"/{data}"
)
public
TabelaWalut
wyswietlWaluty
(
@PathVariable
String
data
)
{
public
TabelaWalut
wyswietlWaluty
(
@PathVariable
String
data
)
{
TabelaWalut
tabela
=
pobieracz
.
pobierz
Tabele
(
data
);
TabelaWalut
tabela
=
pobieracz
.
pobierz
ArchiwalneKursy
(
data
);
return
tabela
;
return
tabela
;
}
}
...
...
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