我想在jsp頁面上使用我的java方法,但大多數來自stackoverflow的答案對我沒有幫助。有人能幫我解決這個問題嗎?如何在jsp中調用java覆蓋的方法?
public class send{
private static final String connectionString = "HostName=hackhubdeu.azure-devices.net;SharedAccessKeyName=****;SharedAccessKey=****";
private static final IotHubServiceClientProtocol protocol = IotHubServiceClientProtocol.AMQPS;
private static final String deviceId = "hack01";
ServiceClient serviceClient;
boolean onOff = false;
public send() {
try {
this.serviceClient = ServiceClient.createFromConnectionString(connectionString, protocol);
this.serviceClient.open();
} catch (IOException e) {
e.printStackTrace();
}
messagesending();
}
public static void main(String[] args) {
new send();
}
public void messagesending() {
onOff = !onOff;
try {
FeedbackReceiver feedbackReceiver = serviceClient.getFeedbackReceiver();
feedbackReceiver.open();
Message msg = new Message(String.valueOf(onOff));
msg.setDeliveryAcknowledgement(DeliveryAcknowledgement.Full);
serviceClient.send(deviceId, msg);
System.out.println("Message sent to device");
FeedbackBatch feedbackBatch = feedbackReceiver.receive(10000);
if (feedbackBatch != null) {
System.out.println("Message feedback received, feedback time: "
+ feedbackBatch.getEnqueuedTimeUtc().toString());
}
if (feedbackReceiver != null) feedbackReceiver.close();
} catch (IotHubException ee) {
ee.printStackTrace();
} catch (IOException eee) {
eee.printStackTrace();
} catch (InterruptedException eeee) {
eeee.printStackTrace();
}
}
這是我的Java代碼,我想叫什麼是公共send()方法對serviceclient連接第一,而且比調用messagesending()方法做了一些工作。
<%@page import="munjuPrj.send"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import ="munjuPrj.send" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
send sendclass = new send();
%>
</body>
</html>
這是我的jsp代碼。它不使運行之前任何錯誤,但在我運行這段代碼,我得到以下錯誤:
HTTP Status 500 - An exception occurred processing JSP page /NewFile.jsp at line 14 this error code
請立即更改您的共享訪問密鑰。它被暴露.. –
當你直接運行發送類時,你的程序是否工作,我的意思是沒有調用JSP頁面? –
你可以發佈你的異常StackTrace日誌來指定Http狀態500錯誤信息嗎? –