Run a Java library
Use Java classes in JavaScript
1. Include CheerpJ on your page
<script src="https://cjrtnc.leaningtech.com/3.1/cj3loader.js"></script>
2. Initialize CheerpJ and load your Java library
await cheerpjInit();const cj = await cheerpjRunLibrary("/app/library.jar");
Donโt forget to use the /app/ prefixIt is common for first-time users to forget to add the prefix โ/app/โ when passing the JAR location to cheerpJRunLibrary().
This will load library.jar
from the root of your web server.
3. Call Java from JavaScript
const MyClass = await cj.com.library.MyClass;const obj = await new MyClass();await obj.myMethod();