fix: 解决以数字开头的字符串变量KEY解析报错问题

src/main/java/com/ql/util/express/ExpressUtil.java

@@ -21,6 +21,7 @@
 import com.ql.util.express.config.QLExpressRunStrategy;
 import com.ql.util.express.exception.QLException;
 import com.ql.util.express.util.QLAliasUtils;
+import org.apache.commons.lang.StringUtils;
 
 /**
  * 表达式工具类
@@ -754,4 +755,32 @@ private static boolean hasOnlyOneAbstractMethod(Method[] methods) {
         }
         return count == 1;
     }
+
+    public static boolean isNumber(String tempWord) {
+        if (StringUtils.isBlank(tempWord)) {
+            return false;
+        }
+        if (tempWord.length() == 1) {
+            char c = tempWord.charAt(0);
+            return c >= '0' && c <= '9';
+        }
+        int lastIndex = tempWord.length() - 1;
+        boolean hasDecimalPoint = false;
+        for (int i = 0; i <= lastIndex; i++) {
+            char c = Character.toLowerCase(tempWord.charAt(i));
+            if (c == '.' && !hasDecimalPoint) {
+                hasDecimalPoint = true;
+                continue;
+            }
+            if (i == lastIndex) {
+                if (c == 'd' || c == 'f'  || c == 'l') {
+                    return true;
+                }
+            }
+            if (!Character.isDigit(c)){
+                return false;
+            }
+        }
+        return true;
+    }
 }

src/main/java/com/ql/util/express/parse/ExpressParse.java

@@ -127,7 +127,7 @@ public List<ExpressNode> transferWord2ExpressNode(ExpressPackage rootExpressPack
 
             char firstChar = tempWord.charAt(0);
             char lastChar = tempWord.substring(tempWord.length() - 1).toLowerCase().charAt(0);
-            if (firstChar >= '0' && firstChar <= '9') {
+            if (ExpressUtil.isNumber(tempWord)) {
                 if (!result.isEmpty()) {
                     // 对负号进行特殊处理
                     if ("-".equals(result.get(result.size() - 1).getValue())) {

src/main/java/com/ql/util/express/parse/WordSplit.java

@@ -4,6 +4,7 @@
 import java.util.Arrays;
 import java.util.List;
 
+import com.ql.util.express.ExpressUtil;
 import com.ql.util.express.exception.QLCompileException;
 
 /**
@@ -136,12 +137,7 @@ public static void sortSplitWord(String[] splitWord) {
     }
 
     protected static boolean isNumber(String str) {
-        if (str == null || "".equals(str)) {
-            return false;
-        }
-        char c = str.charAt(0);
-        // 数字
-        return c >= '0' && c <= '9';
+        return ExpressUtil.isNumber(str);
     }
 
     public static String getPrintInfo(Object[] list, String splitOp) {