Java list根据另一个list排重

result =  tableColumnMapper.getTableColumnSchemasWithPage(param);

//region 过滤已存在TableColumnWithPageParam domain = new TableColumnWithPageParam();domain.setTableId(param.getTableId());List<TableColumnResult> existList = tableColumnMapper.getTableColumnListWithPage(domain);List<TableColumnSchemaResult> resList = result.stream().filter(new Predicate<TableColumnSchemaResult>() {    @Override    public boolean test(TableColumnSchemaResult u) {        //如根据name过滤        for (TableColumnResult user : existList) {            if (u.getColumnName().equals(user.getColumnName())) {                return false;            }        }        return true;    }}).collect(Collectors.toList());//endregion