二、spring mvc参数传递之list方式传参

list方式传参

编写前端请求
<script th:inline="javascript" type="text/javascript">
    let contextPath = /*[[${#request.getContextPath()}]]*/
    $(function(){
        ET.testList();
    });
    var ET = {
        testList: function() {
            var idList = [];
            idList[0] = 1;
            idList.push(2);
            $.ajax({
                url: contextPath + '/param/testList',
                type: 'POST',
                dataType: 'text',
                data: 'idList=' + idList,
                success: function(data) {
                    alert(data);
                }
            });
        }
    }
</script>

- spring mvc接收方式一
@RequestMapping("/testList")
@ResponseBody
public String testList(@RequestParam("idList") List<Integer> list) {
    list.forEach(id -> System.out.println(id));
    return "ok";
}

- spring mvc接收方式二：将idList封装在一个java bean中
@Data
public class UserVo {
    private List<Integer> idList;
}

@RequestMapping("/testList")
@ResponseBody
public String testList2(UserVo userVo) {
    log.info("userVo:{}", userVo);
    return "ok2";
}