MultiScopes.java 文件源码

java
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项目:openjdk-jdk10 作者:
public static void main(final String[] args) throws Exception {
    final ScriptEngineManager manager = new ScriptEngineManager();
    final ScriptEngine engine = manager.getEngineByName("nashorn");

    engine.put("x", "hello");
    // print global variable "x"
    engine.eval("print(x);");
    // the above line prints "hello"

    // Now, pass a different script context
    final ScriptContext newContext = new SimpleScriptContext();
    newContext.setBindings(engine.createBindings(), ScriptContext.ENGINE_SCOPE);
    final Bindings engineScope = newContext.getBindings(ScriptContext.ENGINE_SCOPE);

    // add new variable "x" to the new engineScope
    engineScope.put("x", "world");

    // execute the same script - but this time pass a different script context
    engine.eval("print(x);", newContext);
    // the above line prints "world"
}
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