JS function called by scripting engine in Java

1 ImportJava.io.*;2 Importjavax.script.Invocable;3 ImportJavax.script.ScriptEngine;4 ImportJavax.script.ScriptEngineManager;5 Importjavax.script.ScriptException;6 ImportOrg.slf4j.Logger;7 Importorg.slf4j.LoggerFactory;8 ImportCom.ppcredit.common.util.file.FileUtil;9 Ten /** One * Common JS script engine tool class A  */ -  Public classCommonscriptengineutil { -     Private StaticLogger log = Loggerfactory.getlogger (commonscriptengineutil.class);//Log the      -     Private StaticScriptEngine engine = (NewScriptenginemanager ()). Getenginebyname ("JavaScript"); -      -     Private StaticInvocable invoke =NULL; +      -     /** + * Call the function in JS A      * @paramjsname js file name at      * @paramfunction name called by functionname -      * @paramparam calling the parameters of the JS function -      * @return -      */ -      Public Staticstring Invokejsfuntion (String jsname, string functionname, string param) { - Initjs (jsname); in         synchronized(Invoke) { -String result =param; to          　　 if(Invoke! =NULL){ +              　　 Try { -                 　　  LongStartTime =System.currenttimemillis (); theString C =(String) invoke.invokefunction (functionname, param); *                  　　 LongEndTime =System.currenttimemillis (); $Log.info ("Invokejsfuntion Time >>>>" + (endtime-startTime));Panax Notoginsengresult =C; -}Catch(nosuchmethodexception e) { the Log.error (E.getmessage ()); +}Catch(scriptexception e) { A                　　   //Reload If an error occurs the Initjs (jsname); + Log.error (E.getmessage ()); - } $ } $          　　 returnresult; -         } -     } the      -     Wuyi     Private Static voidInitjs (String jsname) { theString BasePath = Fileutil.getapppath (commonscriptengineutil.class); -String jsfilename = basepath + "/resources/" + jsname;//Read JS file WuInputStreamReader reader =NULL; -         Try { AboutReader =NewInputStreamReader (NewFileInputStream (Jsfilename), "UTF-8"); $ Engine.eval (reader);  -             if(Engineinstanceofinvocable) {     -Invoke =(invocable) engine;  -             }    A}Catch(FileNotFoundException e) { + Log.error (E.getmessage ()); the}Catch(scriptexception e) { - Log.error (E.getmessage ()); $}Catch(unsupportedencodingexception e) { the Log.error (E.getmessage ()); the}finally { the             if(Reader! =NULL){ the                 Try { - reader.close (); in}Catch(IOException e) { the Log.error (E.getmessage ()); the                 } About             } the         } the     } the      +      Public Static voidMain (string[] args) { -String enc = invokejsfuntion ("Aes.js", "Valaesencryptset", "123456"); the System.out.println (ENC);Bayi     } the}

JS function called by scripting engine in Java