Android初始化Parse对象时，如何获取ApplicationID与Server地址？

Hey there! Let's sort out the confusion around filling in applicationId and server values when initializing Parse on your Android app, especially since you're running Parse Server on Windows.

1. Understanding the Parse Application ID #

Your current code uses "com.example.anshuman.parse_1" as the applicationId — but that's your Android app's package name, not the Parse Application ID. This value is something you set yourself when configuring your Parse Server. Here's how to find it:

• If you start Parse Server via command line, look for the --appId flag in your startup command. For example:

  parse-server --appId "myCustomParseAppId" --masterKey "mySecureMasterKey" --databaseURI mongodb://localhost:27017/dev
  

  The string after --appId (like "myCustomParseAppId") is what you need to put in the applicationId() method.
• If you use a configuration file (e.g., config.json), open the file and locate the appId field. It’ll look like this:

  {
    "appId": "myCustomParseAppId",
    "masterKey": "mySecureMasterKey",
    "databaseURI": "mongodb://localhost:27017/dev",
    "serverURL": "http://localhost:1337/parse"
  }
  

  Copy the value of appId into your Android code.

2. Fixing the Server URL #

Your current server URL (http://18.220.188.73:4040) is missing a critical suffix: /parse. Parse Server uses this path as its default API endpoint, so omitting it will cause your Android app to fail when making requests.

Here’s how to get the correct server URL:

• If testing on an Android emulator with Parse Server running locally on Windows: Use http://10.0.2.2:4040/parse (the emulator maps 10.0.2.2 to your Windows machine’s localhost).
• If accessing a public Parse Server (like the IP you used): Use http://18.220.188.73:4040/parse — just add the /parse suffix. Also, make sure:
  • Your Windows firewall allows inbound connections on port 4040.
  • If your Windows machine is behind a router, you’ve set up port forwarding for port 4040 to your machine’s local IP.

Corrected Initialization Code Example #

Using sample values (replace them with your actual Parse Server config):

Parse.initialize(new Parse.Configuration.Builder(this)
    .applicationId("myCustomParseAppId") // Your Parse Server's appId
    .server("http://10.0.2.2:4040/parse") // Local emulator URL, or public URL with /parse
    .build());

Quick Checks to Ensure It Works #

• Verify your Parse Server is running and listening on the port you specified (4040 in your case).
• If using a public IP, test the server URL in a browser first — you should see a Parse Server welcome page at http://18.220.188.73:4040/parse.

内容的提问来源于stack exchange，提问作者anshuman thakur