springmvc 结合ajax批量新增的实现方法

<%@ page language="java" isELIgnored="false" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>ajax批量新增操作</title><script type="text/javascript" src="js/jquery-3.4.1.js"></script></head><body><form id="myForm"><table border="1" ><tr><td>姓名</td><td>身份证</td><td>时间</td><td>direction</td><td>type</td><td>操作</td></tr><tbody id="tbody"><tr><td><!-- 集合为自定义实体类中的结合属性，有几个实体类，改变下标就行了。 --><input type="text" name="visitorList[0].name"/></td><td><input type="text" name="visitorList[0].cardNo"/></td><td><input type="date" name="visitorList[0].visitorTime"/></td><td><input type="radio" value="1" name="visitorList[0].direction"/>进入<input type="radio" value="2" name="visitorList[0].direction"/>离开</td><td><input type="radio" value="1" name="visitorList[0].type"/> 内部<input type="radio" value="2" name="visitorList[0].type"/> 外部</td><td><input class="remove" type="button" value="移除"></td></tr></tbody><tr><td colspan="6"><input id="add" type="button" value="新增visitor" /><input id="save" type="button" value="保存"/></td></tr></table></form><script>$(function() {var index_val = 0;$("body").on('click', '.remove', function() {// 移除当前行, 通过父级来绑定...// $(this).parent().parent().remove();$("#tbody tr").remove();// 覆盖，生成行if (index_val > 0) {var data_str = "";for (var i = 0; i < index_val; i++) {data_str += "<tr>" +"<td>" +"<input type='text' name='visitorList[" + i + "].name'/>" +"</td>" +       "<td>" +   "<input type='text' name='visitorList[" + i + "].cardNo'/>" +"</td>" +       "<td>" +   "<input type='date' name='visitorList[" + i + "].visitorTime'/>" +"</td>" +"<td>" +"<input type='radio' value='1' name='visitorList[" + i + "].direction'/>进入" +"<input type='radio' value='2' name='visitorList[" + i + "].direction'/>离开" +"</td>" +"<td>" +       "<input type='radio' value='1' name='visitorList[" + i + "].type'/> 内部" +"<input type='radio' value='2' name='visitorList[" + i + "].type'/> 外部" +"</td>" +"<td>" +"<input class='remove' type='button' value='移除'>" +"</td>" +"</tr>";}$("#tbody").append(data_str);}// 把下标减少一 就行了，就是移除了。index_val --;console.log("remove: ", index_val);});$("#add").click(function() {// 自增1index_val ++;var data_str = "<tr>" +"<td>" +"<input type='text' name='visitorList[" + index_val + "].name'/>" +"</td>" +       "<td>" +   "<input type='text' name='visitorList[" + index_val + "].cardNo'/>" +"</td>" +       "<td>" +   "<input type='date' name='visitorList[" + index_val + "].visitorTime'/>" +"</td>" +"<td>" +"<input type='radio' value='1' name='visitorList[" + index_val + "].direction'/>进入" +"<input type='radio' value='2' name='visitorList[" + index_val + "].direction'/>离开" +"</td>" +"<td>" +       "<input type='radio' value='1' name='visitorList[" + index_val + "].type'/> 内部" +"<input type='radio' value='2' name='visitorList[" + index_val + "].type'/> 外部" +"</td>" +"<td>" +"<input class='remove' type='button' value='移除'>" +"</td>" +"</tr>";$("#tbody").append(data_str);console.log("add==>" + index_val);});$("#save").click(function() {var form_data = $("#myForm").serialize();// console.log(form_data)$.ajax({url: "visitor/batchAdd",type: "post",data: form_data,success: function(data) {console.log(data);},error: function(e) {console.log(e);}});});});</script></body></html>

package cn.bitqian.entity;import java.util.ArrayList;import java.util.List;/** * 批量新增 visitorInfo * @author echo lovely * */public class BatchVisitor {private List<VisitorInfo> visitorList = new ArrayList<>();public List<VisitorInfo> getVisitorList() {return visitorList;}public void setVisitorList(List<VisitorInfo> visitorList) {this.visitorList = visitorList;}public BatchVisitor() {}}

@RequestMapping(value="/batchAdd", method=RequestMethod.POST)@ResponseBodypublic VisitorInfo batchAddVisitor(BatchVisitor batchVisitor) {List<VisitorInfo> visitorList = batchVisitor.getVisitorList();// System.out.println(batchVisitor);for (VisitorInfo visitorInfo : visitorList) {System.out.println(visitorInfo);visitorInfoService.save(visitorInfo);}return new VisitorInfo(1, "dd", "bb", new Date(), 1, 2);}

<!-- json 用于响应 responseBody --><!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.9.6</version></dependency>