我正在尝试将位置数据从 javascript 发送到我的 servlet 并及时将其存储在数据库中。我一直获取 null 如何访问我的参数？
NewFile.html
<script>
$(document).on("click", "#somebutton", function() {
if (navigator.geolocation) {
navigator.geolocation.watchPosition(showPosition);
} else {
x.innerHTML = "Geolocation is not supported by this browser.";
}
function showPosition(position) {
console.log(position)
var params = {
lat : position.coords.latitude,
lng : position.coords.longittude
};
$.get("someservlet", $.param(params), function(responseText) { // Execute Ajax GET request on URL of "someservlet" and execute the following function with Ajax response text...
// Locate HTML DOM element with ID "somediv" and set its text content with the response text.
});
}
});
</script>
servlet.java
public class servlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String text = "some text";
String params= request.getParameter("params");
System.out.println(params);
}
}
最佳答案
您的 Servlet:
public class servlet extends HttpServlet {
private static final long serialVersionUID = 1L;
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String text = "some text";
System.out.println(String.format("Lat: %s Long: %s", request.getParameter("lat"), request.getParameter("lng")));
}
}
建议您关注naming conventions :
Class names should be nouns, in mixed case with the first letter of each internal word capitalized. Try to keep your class names simple and descriptive. Use whole words-avoid acronyms and abbreviations (unless the abbreviation is much more widely used than the long form, such as URL or HTML).
关于javascript - 如何访问使用 get 方法发送的参数？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59679671/