eval方法被重载的多次,但最常用的是 public Object eval(String script)。 下面的例子演示了如何使用eval方法来执行javascript脚本。 import javax.script.*; import java.io.*; import static java.lang.System.*; public class FirstJavaScript { public static void main(String args[]) { ScriptEngineManager man...
ScriptEngineManager manager=newScriptEngineManager();//建立javascript脚本引擎ScriptEngine engine= manager.getEngineByName("javascript");try{//将变量name和变量值abcdefg传给javascript脚本engine.put("name", "abcdefg");//开始执行脚本engine.eval("var output ='' ;" + "for (i = 0; i <= name.length...
java中scriptEngine eval怎么支持精度设置,一、if单分支语法格式:if(){代码块;}if后面的括号内一般都是一个表达式,但是最终只要有值就行,并且这个值最终会转化为boolean类型。也可以理解为if自含有隐式转换。案例:varstr=prompt('请输入一个数字');varb=parseInt(str);
ScriptEngine engine = sem.getEngineByExtension("js"); public static void main(String[] args) {System.out.println(new JsTest().eval("1+2*9"));} public Object eval(String str) {Object result = null;try {result = engine.eval(str);} catch (Exception ex) {ex.printStackTrace();}return...
要将 Java 对象或 POJO （普通旧 Java 对象）转换为 JSON，我们可以使用JSONObject将对象作为参数的构造...
Objecteval(String script, Bindings n) スクリプトの実行中に、Bindings引数をScriptEngineのENGINE_SCOPE Bindingsとして使用します。 Objecteval(String script, ScriptContext context) ソースが1番目の引数として渡されたStringであるスクリプトをただちに実行します。 Objectget(String key) ...
(AbstractScriptEngine.java:264) at SeleniumTest.isPageReloaded.run(isPageReloaded.java:48) at java.base/java.lang.Thread.run(Thread.java:844) Caused by: :1 ReferenceError: "window" is not defined at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ECMAErrors.error(ECMAErrors.java:57) at ...
Class AbstractScriptEngine java.lang.Object javax.script.AbstractScriptEngine All Implemented Interfaces: ScriptEngine Direct Known Subclasses: NashornScriptEngine public abstract classAbstractScriptEngineextendsObjectimplementsScriptEngine Provides a standard implementation for several of the variants of theevalmethod....
public static void main(String[] args) throws Throwable { String script = "say \"Hello from Java\""; ScriptEngineManager mgr = new ScriptEngineManager(); ScriptEngine engine = mgr.getEngineByName("AppleScript"); engine.eval(script); } ...
(ScriptObjectMirror.java:192) at jdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:381) at jdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:187) at io.apicurio.hub.core.js.OaiCommandExecutor.executeCommands(OaiCommandExecutor.java:102) .....