Controller 구성
import org.springframework.web.bind.annotation.*;
import org.springframework.ui.Model;
import java.util.List;
import java.util.stream.Collectors;
@RestController
@RequestMapping("/example")
public class ExampleController {
private List<Item> items = List.of(
new Item(1, "Item 1", 5),
new Item(2, "Item 2", 0),
new Item(3, "Item 3", 10)
);
@GetMapping("/filter")
public List<Item> filterItems(@RequestParam boolean showNonZero) {
if (showNonZero) {
return items.stream()
.filter(item -> item.getNumber() != 0)
.collect(Collectors.toList());
}
return items;
}
static class Item {
private int id;
private String name;
private int number;
// Constructor, Getters, and Setters
public Item(int id, String name, int number) {
this.id = id;
this.name = name;
this.number = number;
}
public int getId() {
return id;
}
public String getName() {
return name;
}
public int getNumber() {
return number;
}
}
}
JSP구성
<!DOCTYPE html>
<html>
<head>
<title>Checkbox Filtering</title>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script>
$(document).ready(function () {
$('#filterCheckbox').change(function () {
const showNonZero = $(this).is(':checked');
$.ajax({
url: '/example/filter',
method: 'GET',
data: { showNonZero: showNonZero },
success: function (data) {
const list = $('#itemList');
list.empty();
if (data.length > 0) {
data.forEach(function (item) {
list.append('<li>' + item.name + ' (' + item.number + ')</li>');
});
} else {
list.append('<li>No items to display</li>');
}
},
error: function () {
alert('An error occurred while fetching the data.');
}
});
});
});
</script>
</head>
<body>
<h1>Item List</h1>
<label>
<input type="checkbox" id="filterCheckbox">
Show only items with non-zero numbers
</label>
<ul id="itemList">
<!-- 초기 데이터를 서버에서 렌더링할 수도 있음 -->
</ul>
</body>
</html>
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