add script support

hutool-extra/src/main/java/cn/hutool/extra/expression/engine/jexl/JexlEngine.java

@@ -23,7 +23,15 @@ public class JexlEngine implements ExpressionEngine {
 
 	@Override
 	public Object eval(String expression, Map<String, Object> context) {
-		return engine.createExpression(expression).evaluate(new MapContext(context));
+		final MapContext mapContext = new MapContext(context);
+
+		try{
+			return engine.createExpression(expression).evaluate(mapContext);
+		} catch (Exception ignore){
+			// https://gitee.com/dromara/hutool/issues/I4B70D
+			// 支持脚本
+			return engine.createScript(expression).execute(mapContext);
+		}
 	}
 
 	/**

hutool-extra/src/test/java/cn/hutool/extra/expression/ExpressionUtilTest.java

@@ -9,6 +9,9 @@ import cn.hutool.extra.expression.engine.spel.SpELEngine;
 import org.junit.Assert;
 import org.junit.Test;
 
+import java.util.HashMap;
+import java.util.Map;
+
 public class ExpressionUtilTest {
 
 	@Test
@@ -33,6 +36,17 @@ public class ExpressionUtilTest {
 		Assert.assertEquals(-143.8, (double)eval, 2);
 	}
 
+	@Test
+	public void jexlScriptTest(){
+		ExpressionEngine engine = new JexlEngine();
+
+		String exps2="if(a>0){return 100;}";
+		Map<String,Object> map2=new HashMap<>();
+		map2.put("a", 1);
+		Object eval1 = engine.eval(exps2, map2);
+		Assert.assertEquals(100, eval1);
+	}
+
 	@Test
 	public void mvelTest(){
 		ExpressionEngine engine = new MvelEngine();