Java执行JavaScript脚本

demo

//注入函数
StringBuilder scriptContent = new StringBuilder();

scriptContent.append("function run(){");
scriptContent.append("return 123");
scriptContent.append("}");
ScriptEngineManager factory = new ScriptEngineManager();
ScriptEngine engine = factory.getEngineByName("js");

engine.eval(scriptContent.toString());
Invocable inv = (Invocable)engine;
Object result = inv.invokeFunction("run");
System.out.println(result);