SPEL can be used in both xml and annotation. So here are some operators can‘t be used in SPEL in the same way as Java.

Such as, ">" "<", because they will cause ambiguities when parsing xml. Below are some examples:

1. SPEL in xml

2. SPEL in annotation

3. new in SPEL

4. Use static fields in SPEL

5. Calculation and logic checking in SPEL

SPEL (Spring Expression Language)