i found the bug for query cache
for example:

table : Dept
fields: dept_name(varchar) dept_type(int) dept_order(int)

data:
dept_name dept_type dept_order
dept1 1 0
dept2 1 0

the query:
1 query
List list = session.createQuery("select p1 from Dept as p1 where p1.dept_type = :deptType and p1.dept_order = :deptOrder")
.setInteger("deptType" , 1).setInteger("deptOrder" , 0).setCacheable(true).setCacheRegion("Dept).list()
System.out.println(list.size);
2 query:

list = session.createQuery("select p1 from Dept as p1 where p1.dept_type = :deptType and p1.dept_order = :deptOrder")
.setInteger("deptType" , 0).setInteger("deptOrder" , 1).setCacheable(true).setCacheRegion("Dept).list()
System.out.println(list.size);



the out result:
1
1
1
1
the actual result is:
1
1
0
0
i trance the code
i find the org.hibernate.cache.QueryKey

private int generateHashCode()
{
int result = 13;
result = 37 * result + (firstRow != null ? firstRow.hashCode() : 0);
result = 37 * result + (maxRows != null ? maxRows.hashCode() : 0);
for(int i = 0; i < positionalParameterValues.length; i++)
result = 37 * result + (positionalParameterValues[i] != null ? positionalParameterTypes[i].getHashCode(positionalParameterValues[i], entityMode) : 0);

result = 37 * result + (namedParameters != null ? namedParameters.hashCode() : 0);
result = 37 * result + (filterKeys != null ? filterKeys.hashCode() : 0);
result = 37 * result + (customTransformer != null ? customTransformer.hashCode() : 0);
result = 37 * result + sqlQueryString.hashCode();
return result;
}

namedParameters.hashCode() the hashCode is same

for example:
Map map = new HashMap();
map.put("dept_type" , 0 );
map.put("dept_order" ,1);
System.out.println(map.hashCode());
map = new HashMap();
map.put("dept_type" , 1 );
map.put("dept_order" ,0);
System.out.println(map.hashCode());

the out result:
107958673
107958673

also the query parameter value is different
but the map hashCode is same
so the 1 query 2 query query cache key is same