Java8基础

总结常用用法

1、List的stream

List testList = """""

List cmdList = testList.stream().map(eb ->{
    CustomerDTO dto = new CustomerDTO ();
    dto.setId(IdUtil.getGuid32());
    dto.setCustomerID(eb.getId());
    dto.setDepartmentID(eb.getBu());
    dto.setDepartmentName(eb.getBuName());
    return dto;
}).collect(Collectors.toList());

2、Map的foreach 循环

Map> cmMap = “”“”“
cmMap.forEach((k, v) -> {
    try{
       log.info(k+1,v.size())
        
    }catch (Exception e){
       
    }
});