java复制对象属性值、复制值

import org.springframework.beans.BeanUtils;
        ContractUpdateVO vo = new ContractUpdateVO();
        vo.setId("123").setBranchCode("2").setBranchId("3").setBranchName("4");
        Contract contract = new Contract();
        BeanUtils.copyProperties(vo, contract);
        System.out.println(contract);