从同一类的另一个方法调用缓存方法时，Spring cache不起作用。

这里有一个例子可以清楚地解释我的问题。

缓存服务类：

class testServiceImpl{

@CachePut(key = "#result.id", condition = "#result != null")
public List<String> create(String input) {
......
}

@CacheEvict(key="#id")
public void deleteById(Long id) {
.....
}

public void multiDelete(String input) { 
if(condition...){
  deleteById(2);  //Cache is not Evicted here i.e. the records are still present in getAll call but not in Database.
}else{
  create(input); //New Data is persisted in DB but the same has not been updated in Cache.
}   

@Transactional
@Cacheable
public Map<Long, String> getAll() {
 ...
}

我也尝试过使用以下解决方案，但没有成功。

//Create a new object of the same class and use the same. In this case, the data is not persisted in DB i.e. it is not deleting the data from DB.
     testServiceImpl testService;
                ...
              public void multiDelete(String input) {   
                if(condition...){
                  testService.deleteById(2);  
                }else{
              testService.create(input); 
            }

有人能帮我解决这个问题吗？