spring MVC 后端 接收 前端 批量添加的数据(简单示例)

时间:2023-03-09 15:22:52
spring MVC 后端 接收 前端 批量添加的数据(简单示例)

第一种方式:(使用ajax的方式)

前端代码:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<script src="${pageScope.request.ContextPath}/js/jquery-3.3.1.min.js"></script>
<table>
<thead>
<th>编号</th>
<th>姓名</th>
<th>性别</th>
<th>学历</th>
<th>增加</th>
<th>移除</th>
</thead>
<tbody id="data1">
<tr>
<td><input type="text" name="empId"></td>
<td><input type="text" name="empName"></td>
<td>
<select name="empSex">
<option value="男">男</option>
<option value="女">女</option>
</select>
</td>
<td>
<select name="eduEducation">
<option value="本科">本科</option>
<option value="硕士">硕士</option>
<option value="博士">博士</option>
</select>
</td>
<td><input type="button" onclick="addElement(this);" value="+"></td>
<td><input type="button" value="-" onclick="delElement(this)"></td>
</tr>
</tbody>
</table>
<p><input type="button" id="btn_add" value="批量添加"></p>
</body>
<script> //批量添加
$("#btn_add").click(function () {
var data=[];
//循环tbody里面所有的tr,并取出每行相对的值,填充到数组中
$("#data1 tr").each(function (index,obj) {
data.push({
empId:$("input[name='empId']",obj).val(),
empName:$("input[name='empName']",obj).val(),
empSexual:$("select[name='empSexual'] option:selected",obj).val(),
eduEducation:$("select[name='eduEducation'] option:selected",obj).val()
})
})
//发起post请求
$.post({
url:"",
contentType:"application/json",
data:JSON.stringify(data),//将对象转为字符
success:function (text) {
alert(text.msg);
}
}); })
//复制tr节点的内容
function addElement(x){
$(x).parents("tr").clone().appendTo($("#data1"));
}
//移除tr节点
function delElement(x){
$(x).parents("tr").remove();
} </script>
</html>

后端代码:

    //访问test页面
@RequestMapping(path="/c",method = RequestMethod.GET)
public String test1(){
return "test1";
} //接收test页面的字符数组
@RequestMapping(path = "/c",method = RequestMethod.POST,produces = "application/json;charset=utf-8")
@ResponseBody
public String Receive(@RequestBody List<Employee> list){ //Employee可以改为Object
for (Employee employee : list) {
System.out.println(employee);
}
return "{\"msg\":\"添加成功\"}";
}

实体类

package com.oukele.model;

import java.math.BigDecimal;

public class Employee {
private String empId; private String empName; private String empSexual; private String eduEducation; public String getEmpId() {
return empId;
} public void setEmpId(String empId) {
this.empId = empId == null ? null : empId.trim();
} public String getEmpName() {
return empName;
} public void setEmpName(String empName) {
this.empName = empName == null ? null : empName.trim();
} public String getEmpSexual() {
return empSexual;
} public void setEmpSexual(String empSexual) {
this.empSexual = empSexual == null ? null : empSexual.trim();
} public String getEduEducation() {
return eduEducation;
} public void setEduEducation(String eduEducation) {
this.eduEducation = eduEducation == null ? null : eduEducation.trim();
} @Override
public String toString() {
return "Employee{" +
"empId='" + empId + '\'' +
", empName='" + empName + '\'' +
", empSexual='" + empSexual + '\'' +
", eduEducation='" + eduEducation + '\'' +
'}';
}
}

演示:

spring MVC 后端 接收 前端 批量添加的数据(简单示例)

后台接收后打印的值:

spring MVC 后端 接收 前端 批量添加的数据(简单示例)

第二种方式:(使用form表单)

创建一个实体类 将Employee封装起来

FormBean

package com.oukele.model;

import java.util.List;

public class FormBean {
private List<Employee> employeeList; public List<Employee> getEmployeeList() {
return employeeList;
} public void setEmployeeList(List<Employee> employeeList) {
this.employeeList = employeeList;
} }

前端代码:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<script src="${pageScope.request.ContextPath}/js/jquery-3.3.1.min.js"></script>
<form action="/zhoumo/c" method="post" id="myform">
<table>
<thead>
<th>编号</th>
<th>姓名</th>
<th>性别</th>
<th>学历</th>
<th>增加</th>
<th>移除</th>
</thead>
<tbody id="data1">
<tr>
<td><input type="text" name="empId"></td>
<td><input type="text" name="empName"></td>
<td>
<select name="empSexual">
<option value="男">男</option>
<option value="女">女</option>
</select>
</td>
<td>
<select name="eduEducation">
<option value="本科">本科</option>
<option value="硕士">硕士</option>
<option value="博士">博士</option>
</select>
</td>
<td><input type="button" onclick="addElement(this);" value="+"></td>
<td><input type="button" value="-" onclick="delElement(this)"></td>
</tr>
</tbody>
</table>
</form>
<p><input type="button" id="btn_add" value="批量添加"></p>
</body>
<script> $("#btn_add").click(function () {
//获取行
var rows = $("#data1 tr");
//循环每一行
$(rows).each(function (index,obj) {
//将每一行中的 input[type='text'],select的对象取出,再进行一次循环
$("input[type='text'],select",obj).each(function (i,o) {
//当前对象 添加 name 属性值 name =employeeList[索引].对应的属性值
$(o).attr("name","employeeList["+index+"]."+$(o).attr("name"));
})
});
//提交
$("#myform").submit(); }) //复制tr节点的内容
function addElement(x){
$(x).parents("tr").clone().appendTo($("#data1"));
}
//移除tr节点
function delElement(x){
$(x).parents("tr").remove();
} </script>
</html>

后台代码:

    //访问test页面
@RequestMapping(path="/c",method = RequestMethod.GET)
public String test1(){
return "test1";
}//接收test页面的form传递过来的值
@RequestMapping(path = "/c",method = RequestMethod.POST)
public String Receive1(FormBean formBean){
for (Employee employee : formBean.getEmployeeList()) {
System.out.println(employee);
}
//重定向
return "redirect:/zhoumo/c";
}

演示:

前端 form表单 提交

spring MVC 后端 接收 前端 批量添加的数据(简单示例)

后端:

spring MVC 后端 接收 前端 批量添加的数据(简单示例)

后台还有Map接收的方式,不过我忘了。有点尴尬了。希望路过的大佬有想法能贴出来一下,一起学习(本人菜鸟一枚)>..<