package zimu.util;
import javax.script.Compilable;
import javax.script.CompiledScript;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
public class ExeJsUtil {
/**
* 执行js并返回结果
* @param jsStr
* @return
*/
public static String getJsVal(String jsStr) {
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("JavaScript");
try {
Compilable compilable = (Compilable) engine;
CompiledScript JSFunction = compilable.compile(jsStr);
Object result = JSFunction.eval();
return result != null ? result.toString() : null;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
