Tomcat 7.0.41启动正常但访问localhost:8080报HTTP Error 404求助

Hey Eric, let's dig into why you're hitting that HTTP Error 404 when accessing http://localhost:8080/ even though Tomcat started up with the confirmation:

INFO: Server startup in 9393 ms

Here are practical, step-by-step checks to resolve the issue:

• Verify the default ROOT application exists
  Tomcat serves its default landing page from the webapps/ROOT directory. If this folder was deleted, renamed, or its core files are corrupted, you'll get a 404. Double-check that your Tomcat installation's webapps folder contains a ROOT directory with at least a default index file (like index.html or index.jsp).

• Check the Host configuration in conf/server.xml
  Sometimes the <Host> node's appBase property gets modified, preventing Tomcat from loading apps in the standard webapps folder. Locate the <Host> tag in your server.xml and ensure it matches the default setup:

  <Host name="localhost"  appBase="webapps"
        unpackWARs="true" autoDeploy="true">
  

  If appBase points to a different path, Tomcat won't look for the ROOT app where you expect it.

• Review startup logs for ROOT app deployment status
  Beyond the startup time message, scan earlier console output for a line like:

  INFO: Deploying web application directory ROOT
  If this line is missing, the ROOT app wasn't deployed at all. Common causes include file permission issues (Tomcat lacks read access to webapps/ROOT) or corrupted files within the ROOT directory.

• Confirm port 8080 is actually used by Tomcat
  Even though your Connector is configured for port 8080, another process might be occupying that port—forcing Tomcat to fall back to a different port. Use these commands to verify:

  • Windows: netstat -ano | findstr :8080
  • Linux/macOS: lsof -i :8080
    Make sure the process ID linked to port 8080 matches Tomcat's running process.

• Clear Tomcat's cache directories
  Stale cached deployment data can cause unexpected glitches. Stop Tomcat, delete all contents in the work and temp folders under your Tomcat installation, then restart the server. This forces Tomcat to re-deploy all applications from scratch.

内容的提问来源于stack exchange，提问作者Eric Guzman