fukui_fukui的博客

选择数据导出时： 1：前台把id传过来后台做查询（不做描述） 2：用stream表达式，比较省代码,下面就是采用这种方法 String selections = request.getParameter("selections"); if (oConvertUtils.isNotEmpty(selections)) { List<String> selectionList = Arrays.asList(selections.split(","));

List<String> string2 = ints.stream().map(String::valueOf).collect(Collectors.toList());

下面为一个普通的实体类 static class Employee{ private Long empno; private String name; private Integer salary; private Integer deptno; public Long getEmpno() { return empno; } public void setEmpno(Long empno) { this.empno = empno; } public String