NetBeans 8.2连接Redis问题求助

Hey there, let's work through this connection error you're hitting. The error message gives us a pretty clear clue right off the bat, so let's break it down step by step:

1. Fix the Port Number (The Most Likely Culprit) #

Looking at your JDBC URL:

jdbc:redis:Server=127.0.0.1;Port=1521;Password=myPassword;

You've set Port=1521—that's the default port for Oracle Database, not Redis! Redis uses 6379 as its default port. First, update your URL to use the correct port:

jdbc:redis:Server=127.0.0.1;Port=6379;Password=myPassword;

If you've customized your Redis instance to use a different port, check your redis.conf file or your Redis startup logs to confirm the correct port number.

2. Verify Redis is Running Locally #

Even with the right port, if Redis isn't running, you'll get a "connection refused" error. Here's how to check:

• Windows: Open the Services manager (press Win + R, type services.msc), find the Redis service, and make sure it's set to "Running".
• Linux/macOS: Run this command in your terminal to check if Redis is active:

  systemctl status redis-server
  

  Or if you're using a manual installation:

  ps aux | grep redis-server
  

If it's not running, start the service first (e.g., systemctl start redis-server on Linux).

3. Confirm Redis is Accepting Local Connections #

By default, Redis binds to 127.0.0.1 (only local connections). Double-check your redis.conf file to make sure:

• The bind directive includes 127.0.0.1 (or 0.0.0.0 if you want remote access, though that's unnecessary for local NetBeans use).
• protected-mode is set to yes (default) for local-only access, or no if you've adjusted bindings (use cautiously in production).

4. Validate Your Redis Password #

If you've set a password for Redis, confirm that myPassword matches the requirepass value in your redis.conf file. If you haven't set a password at all, remove the Password=myPassword; part from your JDBC URL entirely.

5. Test Connection with Redis-CLI First #

Before troubleshooting NetBeans, test if you can connect to Redis directly using the command-line client:

redis-cli -h 127.0.0.1 -p 6379 -a myPassword

If this command fails, the issue is with your Redis setup, not NetBeans. If it works, double-check that you've selected the correct CData Redis driver in NetBeans and that your URL matches the adjusted version above.

内容的提问来源于stack exchange，提问作者Evan Christensen