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How to stop showing duplicated items in jsp
Rendering a nested list with JSPWhat is the difference between JSF, Servlet and JSP?How to upload files to server using JSP/Servlet?Why would I use a templating engine? jsp include and jstl vs tiles, freemarker, velocity, sitemeshHow to avoid Java code in JSP files?How to use if-else option in JSTLif…else within JSP or JSTLOption list not loading in JSPdisplaying different classes in a table from one jsp fileIterate a List of Hashmap and form table in JSP Angular1.6
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
To jsp i send list of Routes
request.setAttribute(ROUTES, routeService.getAll());
Routes has Train->List<Wagon>
Wagon has type (Business, Standart, etc) and count of seats.
I need to show for every Route:
Business: 1313,
Standart: 131...
I need to summ count of seats of each Wagon of all types and show it in JSP for each Route.
How to achieve this via jstl.
jsp jstl
asked Mar 26 at 21:40
NeewbieNeewbie
289 bronze badges
add a comment |
To jsp i send list of Routes
request.setAttribute(ROUTES, routeService.getAll());
Routes has Train->List<Wagon>
Wagon has type (Business, Standart, etc) and count of seats.
I need to show for every Route:
Business: 1313,
Standart: 131...
I need to summ count of seats of each Wagon of all types and show it in JSP for each Route.
How to achieve this via jstl.
jsp jstl
asked Mar 26 at 21:40
NeewbieNeewbie
289 bronze badges
add a comment |
To jsp i send list of Routes
request.setAttribute(ROUTES, routeService.getAll());
Routes has Train->List<Wagon>
Wagon has type (Business, Standart, etc) and count of seats.
I need to show for every Route:
Business: 1313,
Standart: 131...
I need to summ count of seats of each Wagon of all types and show it in JSP for each Route.
How to achieve this via jstl.
jsp jstl
asked Mar 26 at 21:40
NeewbieNeewbie
289 bronze badges
To jsp i send list of Routes
request.setAttribute(ROUTES, routeService.getAll());
Routes has Train->List<Wagon>
Wagon has type (Business, Standart, etc) and count of seats.
I need to show for every Route:
Business: 1313,
Standart: 131...
I need to summ count of seats of each Wagon of all types and show it in JSP for each Route.
How to achieve this via jstl.
jsp jstl
jsp jstl
asked Mar 26 at 21:40
NeewbieNeewbie
289 bronze badges
asked Mar 26 at 21:40
NeewbieNeewbie
289 bronze badges
asked Mar 26 at 21:40
NeewbieNeewbie
289 bronze badges
asked Mar 26 at 21:40
NeewbieNeewbie
289 bronze badges
asked Mar 26 at 21:40
NeewbieNeewbie
289 bronze badges
289 bronze badges
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You should do your logic in your servlet and send it to jsp. Also you can write java codes in jsp which I suggest you to avoid. To Solve your problem you need a code like this in your servlet:
Map<String, Int> trainMap = trainList.stream().collect(Collectors.groupingBy(Wagon::getType,
Collectors.summingInt(Wagon::getCount)));
request.setAttribute("trainMap", trainMap);
And in your jsp do something like this:
<c:forEach var="train" items="$trainMap">
<tr>
<td>
<c:out value="$train.key" /> : <c:out value="$train.value" />
</td>
</tr>
</c:forEach>
answered Mar 27 at 10:42
SparaSpara
3,6702 gold badges16 silver badges43 bronze badges
Thx. I did a bit different. Wrote method and query to fetch long value from database
– Neewbie
Mar 28 at 12:00
@Neewbie thats a good idea too
– Spara
Mar 28 at 12:07
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You should do your logic in your servlet and send it to jsp. Also you can write java codes in jsp which I suggest you to avoid. To Solve your problem you need a code like this in your servlet:
Map<String, Int> trainMap = trainList.stream().collect(Collectors.groupingBy(Wagon::getType,
Collectors.summingInt(Wagon::getCount)));
request.setAttribute("trainMap", trainMap);
And in your jsp do something like this:
<c:forEach var="train" items="$trainMap">
<tr>
<td>
<c:out value="$train.key" /> : <c:out value="$train.value" />
</td>
</tr>
</c:forEach>
answered Mar 27 at 10:42
SparaSpara
3,6702 gold badges16 silver badges43 bronze badges
Thx. I did a bit different. Wrote method and query to fetch long value from database
– Neewbie
Mar 28 at 12:00
@Neewbie thats a good idea too
– Spara
Mar 28 at 12:07
add a comment |
You should do your logic in your servlet and send it to jsp. Also you can write java codes in jsp which I suggest you to avoid. To Solve your problem you need a code like this in your servlet:
Map<String, Int> trainMap = trainList.stream().collect(Collectors.groupingBy(Wagon::getType,
Collectors.summingInt(Wagon::getCount)));
request.setAttribute("trainMap", trainMap);
And in your jsp do something like this:
<c:forEach var="train" items="$trainMap">
<tr>
<td>
<c:out value="$train.key" /> : <c:out value="$train.value" />
</td>
</tr>
</c:forEach>
answered Mar 27 at 10:42
SparaSpara
3,6702 gold badges16 silver badges43 bronze badges
Thx. I did a bit different. Wrote method and query to fetch long value from database
– Neewbie
Mar 28 at 12:00
@Neewbie thats a good idea too
– Spara
Mar 28 at 12:07
add a comment |
You should do your logic in your servlet and send it to jsp. Also you can write java codes in jsp which I suggest you to avoid. To Solve your problem you need a code like this in your servlet:
Map<String, Int> trainMap = trainList.stream().collect(Collectors.groupingBy(Wagon::getType,
Collectors.summingInt(Wagon::getCount)));
request.setAttribute("trainMap", trainMap);
And in your jsp do something like this:
<c:forEach var="train" items="$trainMap">
<tr>
<td>
<c:out value="$train.key" /> : <c:out value="$train.value" />
</td>
</tr>
</c:forEach>
answered Mar 27 at 10:42
SparaSpara
3,6702 gold badges16 silver badges43 bronze badges
You should do your logic in your servlet and send it to jsp. Also you can write java codes in jsp which I suggest you to avoid. To Solve your problem you need a code like this in your servlet:
Map<String, Int> trainMap = trainList.stream().collect(Collectors.groupingBy(Wagon::getType,
Collectors.summingInt(Wagon::getCount)));
request.setAttribute("trainMap", trainMap);
And in your jsp do something like this:
<c:forEach var="train" items="$trainMap">
<tr>
<td>
<c:out value="$train.key" /> : <c:out value="$train.value" />
</td>
</tr>
</c:forEach>
answered Mar 27 at 10:42
SparaSpara
3,6702 gold badges16 silver badges43 bronze badges
answered Mar 27 at 10:42
SparaSpara
3,6702 gold badges16 silver badges43 bronze badges
answered Mar 27 at 10:42
SparaSpara
3,6702 gold badges16 silver badges43 bronze badges
answered Mar 27 at 10:42
SparaSpara
3,6702 gold badges16 silver badges43 bronze badges
3,6702 gold badges16 silver badges43 bronze badges
Thx. I did a bit different. Wrote method and query to fetch long value from database
– Neewbie
Mar 28 at 12:00
@Neewbie thats a good idea too
– Spara
Mar 28 at 12:07
add a comment |
Thx. I did a bit different. Wrote method and query to fetch long value from database
– Neewbie
Mar 28 at 12:00
@Neewbie thats a good idea too
– Spara
Mar 28 at 12:07
Thx. I did a bit different. Wrote method and query to fetch long value from database
– Neewbie
Mar 28 at 12:00
Thx. I did a bit different. Wrote method and query to fetch long value from database
– Neewbie
Mar 28 at 12:00
@Neewbie thats a good idea too
– Spara
Mar 28 at 12:07
@Neewbie thats a good idea too
– Spara
Mar 28 at 12:07
add a comment |
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