部署Google App Engine后页面未更新的技术问题求助

Hey there, let's work through why your Google App Engine (GAE) deployment isn't showing your expected "Hello World!" text. First, let's recap your setup to make sure we're on the same page:

Your Project Details #

• GAE Project ID: podcom-191901
• Deployment status: Successfully deployed (per your logs)
• Local index.jsp content has <h1>Hello World!</h1> (no comma after "Hello")

Your Local Code Files #

index.jsp

<%-- Document : index Created on : 01-13-2018, 03:51:10 AM Author : Molina --%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Hello World!</h1>
</body>
</html>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

appengine-web.xml

<?xml version="1.0" encoding="UTF-8"?>
<appengine-web-app xmlns="http://appengine.google.com/ns/1.0" xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://kenai.com/projects/nbappengine/downloads/download/schema/appengine-web.xsd appengine-web.xsd'>
<application>podcom-191901</application>
<version>1</version>
<!-- <ssl-enabled>false</ssl-enabled> <sessions-enabled>true</sessions-enabled> -->
<threadsafe>false</threadsafe>
</appengine-web-app>

Deployment Success Log #

Reading application configuration data...
Beginning interaction for module default...
0% Created staging directory at: 'C:\Users\Molina\AppData\Local\Temp\appcfg5035433166099542506.tmp'
5% Warning: Google App Engine Java 7 runtime is deprecated.
8% Warning: See https://cloud.google.com/appengine/docs/deprecations/java7
11% Scanning for jsp files.
13% Compiling jsp files.
warning: [options] bootstrap class path not set in conjunction with -source 1.7
20% Scanning files on local disk.
25% Initiating update.
28% Cloning 1 static files.
31% Cloning 25 application files.
40% Uploading 2 files.
52% Uploaded 1 files.
61% Uploaded 2 files.
68% Sending batch containing 2 file(s) totaling 3KB.
73% Initializing precompilation...
90% Deploying new version.
95% Closing update: new version is ready to start serving.
98% Uploading index definitions.
Update for module default completed successfully.
Success.
Cleaning up temporary files for module default...

Possible Fixes to Try #

1. Clear Browser Cache (Most Likely Culprit) #

Browsers often cache static content and JSP outputs to load pages faster. Try these steps:

• Force refresh: Press Ctrl + F5 (Windows/Linux) or Cmd + Shift + R (Mac) to bypass cached content.
• Incognito/Private Window: Open your app URL in an incognito window—this won't use stored caches.

2. Verify Default Version in GAE Console #

GAE allows multiple versions of your app to run at once, and if your new version isn't set as the default, you'll still see the old one. Here's how to check:

1. Go to the Google Cloud Console and select your project podcom-191901.
2. Navigate to App Engine > Versions.
3. Look for the version labeled 1 (from your appengine-web.xml).
4. If it's not marked as the default version, click the three-dot menu next to it and select Make default.

3. Re-Deploy to Ensure Correct Files Are Uploaded #

Even though your deployment log says "Success", sometimes files can fail to upload correctly (rare, but possible). Try:

• Double-check that your local index.jsp definitely has <h1>Hello World!</h1> (no comma).
• Re-run the "Deploy to Google App Engine" command in NetBeans, and monitor the deployment log for any unexpected errors.

4. Clean and Re-Compile Your Project #

Your deployment log shows a warning about JSP compilation (bootstrap class path not set in conjunction with -source 1.7). While this is a Java 7 deprecation warning, cleaning your project first can eliminate stale compiled files:

• In NetBeans, go to Build > Clean Project to remove old build artifacts.
• Deploy the project again after cleaning.

Let me know if any of these steps resolve your issue!

内容的提问来源于stack exchange，提问作者luickx