我有如下 JSP 代码，我可以检查 javascript 代码的运行时间，但无法检查 servlet 进程的运行时间，runTime 始终为 0，我该怎么办？
<%@ page contentType="text/html; charset=UTF-8"%>
<%@ page import="java.util.List"%>
<%@ page import="java.util.ArrayList"%>
<%
long startTime = System.currentTimeMillis();
MyForm myForm = (MyForm) request.getAttribute(ACTION_FORM_KEY);
if(myForm == null) {
myForm = new PsiSearchForm();
}
List<Object> myList = myForm.getMyList();
if(myList == null) {
myList = new ArrayList<Object>();
}
long endTime = System.currentTimeMillis();
long runTime = endTime - startTime;
%>
<html>
...
</form>
</body>
<script language="JavaScript" type="text/JavaScript">
console.time('my_form.jsp');
// javascript process
console.timeEnd('my_form.jsp');
console.log("Select My List time: " + <%=runTime%>);
</script>
</html>
最佳答案
尝试使用System.nanoTime();
来自Oracle
long startTime = System.nanoTime();
// ... the code being measured ...
long estimatedTime = System.nanoTime() - startTime;
关于javascript - 如何在 IE 调试控制台中显示 servlet 运行时间？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44191845/