將值從 javascript 傳遞到 jsp 頁面

Question

我正在使用以下腳本來獲取兩個地點之間的行駛距離。

<script type="text/javascript">

    var geocoder, location1, location2, gDir;

    function initialize() {
        geocoder = new GClientGeocoder();
        gDir = new GDirections();
        GEvent.addListener(gDir, "load", function() {
            var drivingDistanceMiles = gDir.getDistance().meters / 1609.344;
            var drivingDistanceKilometers = gDir.getDistance().meters / 1000;
            document.getElementById('results').innerHTML = '<strong>Address 1: </strong>' + location1.address + ' (' + location1.lat + ':' + location1.lon + ')<br /><strong>Address 2: </strong>' + location2.address + ' (' + location2.lat + ':' + location2.lon + ')<br /><strong>Driving Distance: </strong>' + drivingDistanceMiles + ' miles (or ' + drivingDistanceKilometers + ' kilometers)';
        });
    }

    function showLocation() {
        geocoder.getLocations(document.forms[0].address1.value, function (response) {
            if (!response || response.Status.code != 200)
            {
                alert("Sorry, we were unable to geocode the first address");
            }
            else
            {
                location1 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
                geocoder.getLocations(document.forms[0].address2.value, function (response) {
                    if (!response || response.Status.code != 200)
                    {
                        alert("Sorry, we were unable to geocode the second address");
                    }
                    else
                    {
                        location2 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
                        gDir.load('from: ' + location1.address + ' to: ' + location2.address);
                    }
                });
            }
        });
    }

    </script>

我想將 vardrivingDistanceKilometers 的值存儲在數據庫中，所以我想將此值傳遞給另一個或相同的 jsp 頁面。 我怎樣才能做到這一點？？？

提前致謝。

Answer 1

您必須向您的 JSP 發送請求，並將drivingDistanceKilometers作為請求的參數。 可以通過更改位置來發送請求，或者通過更改 HTML 頁面表單中的輸入值並提交此表單，或者通過向 Z2D7FCA4F5778E4B40B606914719BB24 發送 AJAX 請求來發送請求。