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表单用serialize()序列化并且通过ajax向后台传值，后台方法参数传递问题

分类: 文章 • 2023-12-05 22:44:04



首先是页面表单用serialize()序列化并且通过ajax向后台传值，后台方法参数传递问题

此页面时一个表单

只要是选中的数据，就往后台传，没选中但是有数据，则不传递。此页面的代码如下
[html] view plain copy 表单用serialize()序列化并且通过ajax向后台传值，后台方法参数传递问题表单用serialize()序列化并且通过ajax向后台传值，后台方法参数传递问题
  1. <form id="polForm" method="post">  
  2.                 <table class="width01" cellpadding="0" cellspacing="0" border="0">  
  3.                     <tr>  
  4.                         <td colspan="2"><span class="fweight01 fsize01">策略名称</span></td>  
  5.                         <td><input name="jifei" type="text" class="width02 height01" value="计费策略1" /></td>  
  6.                     </tr>  
  7.                     <tr>  
  8.                         <td colspan="2"><span class="fweight01 fsize01">策略编号</span></td>  
  9.                         <td><input type="text" class="width02 height01" name="bianhao"/></td>  
  10.                     </tr>  
  11.                     <tr>  
  12.                         <td>  
  13.                             <a onclick="changeBox01()"><input id="box01" class="marginl01" type="checkbox" /></a>  
  14.                         </td>  
  15.                         <td class="tl"><span class="span01 span02">免费时长：</span></td>  
  16.                         <td class="tl">  
  17.                             <span style="float:left;">  
  18.                                 <input id="fee01" name="fee01" class="width03 easyui-textbox" /><span class="span03">分钟</span>  
  19.                                 <input id="fee02" name="fee02"class="width03 marginl01 easyui-combobox" value="超时计费" />  
  20.                             </span>  
  21.                             <span id="dis01" class="span02">  
  22.                                 <a onclick="changeHtml()"><input id="box02" type="checkbox" /></a><span class="span03 span04">超过</span>  
  23.                                 <input id="fee03" name="fee03" class="width07 easyui-textbox" value="60" /><span class="span03">分钟后计算全部费用</span>  
  24.                             </span>  
  25.                         </td>  
  26.                     </tr>  
  27.                     <tr>  
  28.                         <td></td>  
  29.                         <td></td>  
  30.                         <td class="tl"><span id="dis02" class="color01">不到30分钟不收费，超过30分钟只收超时费用。</span></td>  
  31.                     </tr>  
  32.                     <tr>  
  33.                         <td><a onclick="disAppear()"><input id="box03" class="marginl01" type="checkbox" /></a></td>  
  34.                         <td class="tl"><span class="span01 span02">免费时段：</span></td>  
  35.                         <td class="tl">  
  36.                             <span style="float:left;">  
  37.                                 <input id="fee04" name="fee04" class="width07 easyui-timespinner" data-options="showSeconds:false" /><span class="span03 span04">--</span>  
  38.                                 <input id="fee05" name="fee05"  class="width07 easyui-timespinner" data-options="showSeconds:false" />  
  39.                             </span>  
  40.                             <span id="dis03" style="display:none;">  
  41.                                 <a class="marginl02" id="btn1"><img src="../common/images/greenpolicy.png" /></a>  
  42.                                 <input id="fee06" class="width05 easyui-combobox" value="期间驶入驶出免费" />  
  43.                             </span>  
  44.                         </td>  
  45.                     </tr>  
  46.                     <tr>  
  47.                         <td><a onclick="changeBox04()"><input id="box04" class="marginl01" type="checkbox" /></a></td>  
  48.                         <td class="tl"><span class="span01 span02">计费循环单位：</span></td>  
  49.                         <td class="tl">  
  50.                             <input id="fee07" class="width06 easyui-combobox" value="停放总时长24小时为一天" />  
  51.                         </td>  
  52.                     </tr>  
  53.                     <tr>  
  54.                         <td><a onclick="changeBox05()"><input id="box05" class="marginl01" type="checkbox" /></a></td>  
  55.                         <td class="tl"><span class="span01 span02">白天时段：</span></td>  
  56.                         <td class="tl">  
  57.                             <input id="fee08" class="width07 easyui-timespinner" data-options="showSeconds:false" value="06:00" /><span class="span03 span04">--</span>  
  58.                             <input id="fee09" class="width07 easyui-timespinner" data-options="showSeconds:false" value="18:00" />  
  59.                         </td>  
  60.                     </tr>  
  61.                     <tr>  
  62.                         <td><a onclick="changeBox06()"><input id="box06" class="marginl01" type="checkbox" /></a></td>  
  63.                         <td class="tl"><span class="span01 span02">计费方式：</span></td>  
  64.                         <td class="tl">  
  65.                             <span style="float:left;"><input id="fee10" class="width03 easyui-combobox" value="全天" /></span>  
  66.                             <span id="dis04" class="marginl01"><input id="fee11" class="width03 easyui-combobox" value="按时段计费" /></span>   
  67.                             <span id="dis05" class="marginl01" style="display:none">  
  68.                                 <span>白天：</span><input id="fee12" class="width03 easyui-combobox" value="按时段计费" />  
  69.                                 <span>夜间：</span><input id="fee13" class="width03 easyui-combobox" value="按时段计费" />  
  70.                             </span>  
  71.                         </td>  
  72.                     </tr>  
  73.                     <tr>  
  74.                         <td><a onclick="timeType()"><input id="box07" class="marginl01" type="checkbox" /></a></td>  
  75.                         <td class="tl"><span class="span01 span02">按时段：</span></td>  
  76.                         <td class="tl">  
  77.                             <input id="fee14" class="width07 easyui-timespinner" data-options="showSeconds:false" value="06:00" /><span class="span03 span04">--</span>  
  78.                             <input id="fee15" class="width07 easyui-timespinner" data-options="showSeconds:false" value="18:00" />  
  79.                             <input id="fee16" class="width08 easyui-combobox marginl01" value="固定收费" />  
  80.                             <span class="span03 span04">共</span><input id="fee17" class="width07 easyui-textbox" /><span class="span03 span04">元</span>  
  81.                             <a href="#" class="marginl02" id="btn2" style="display:none;"><img src="../common/images/greenpolicy.png" /></a>  
  82.                         </td>  
  83.                     </tr>  
  84.                     <tr>  
  85.                         <td><a onclick="timeSize()"><input id="box08" class="marginl01" type="checkbox" /></a></td>  
  86.                         <td class="tl"><span class="span01 span02">按时长：</span></td>  
  87.                         <td class="tl" id="fee22">  
  88.                             <input class="width09 easyui-textbox" value="1" /><span class="span03 span04">-</span>  
  89.                             <input class="width09 easyui-textbox" value="5" /><span class="span03">小时</span>  
  90.                             <span class="span02">按</span>  
  91.                             <input class="width09 easyui-textbox" value="5" /><span class="span03 span04">元/</span>  
  92.                             <input class="width09 easyui-textbox" value="5" />  
  93.                             <span class="span03 span04">分钟</span>  
  94.                             <a href="#" class="marginl02" id="btn3" style="display:none;"><img src="../common/images/greenpolicy.png" /></a>  
  95.                         </td>  
  96.                     </tr>  
  97.                     <tr>  
  98.                         <td></td>  
  99.                         <td></td>  
  100.                         <td class="tl" id="fee18">  
  101.                             <span class="span04">大于</span>  
  102.                             <input class="width10 easyui-textbox" value="5" /><span class="span03">小时</span>  
  103.                             <span class="span02">按</span>  
  104.                             <input class="width09 easyui-textbox" value="5" /><span class="span03 span04">元/</span>  
  105.                             <input class="width09 easyui-textbox" value="5" />  
  106.                             <span class="span03 span04">分钟</span>  
  107.                         </td>  
  108.                     </tr>  
  109.                     <tr>  
  110.                         <td><a onclick="changeBox09()"><input id="box09" class="marginl01" type="checkbox" /></a></td>  
  111.                         <td class="tl"><span class="span01 span02">过夜费：</span></td>  
  112.                         <td class="tl" id="fee19">  
  113.                             <input class="width07 easyui-timespinner" value="22:00" /><span class="span03 span04">开始，夜间时段停车超过</span>  
  114.                             <input class="width09 easyui-textbox" value="5" /><span class="span03 span04">分钟</span>  
  115.                             <span class="span03 span04">需增加</span>  
  116.                             <input class="width09 easyui-textbox" value="5" /><span class="span03">元过夜费</span>  
  117.                         </td>  
  118.                     </tr>  
  119.                     <tr>  
  120.                         <td><a onclick="changeBox10()"><input id="box10" class="marginl01" type="checkbox" /></a></td>  
  121.                         <td class="tl"><span class="span01 span02">收费限额：</span></td>  
  122.                         <td class="tl" id="fee20">  
  123.                             <input class="width08 easyui-combobox" value="每天相同的限额" />  
  124.                             <input class="width07 easyui-textbox" value="20" /><span class="span03">元</span>  
  125.                         </td>  
  126.                     </tr>  
  127.                 </table>  
  128.             </form>  


表单要进行序列化，必须添加给需要的标签添加name属性，否则无用


js文件中的写法如下：
[javascript] view plain copy 表单用serialize()序列化并且通过ajax向后台传值，后台方法参数传递问题表单用serialize()序列化并且通过ajax向后台传值，后台方法参数传递问题
  1. <span style="white-space:pre">        </span>var arr = $('#polForm').serialize();  
  2.         $.param(arr);  
  3.         console.log("表单序列化=============="+arr);  
  4.           
  5.         $.ajax({  
  6.             url:"/epark/testt.do",  
  7.             data:arr,  
  8.             type:"post",  
  9.             dataType:"json",  
  10.             success:function(data){  
  11.                 alert("测试发送接收成功");  
  12.             },  
  13.             error:function(){  
  14.                 console.log("失败");  
  15.             }  
  16.         })  

注意，ajax方法中data传递的是arr，那么问题来了，后台的方法接受时，参数是怎么传递的？
首先，创建一个实体类，要求类的属性和表单中name对应，如下图

表单用serialize()序列化并且通过ajax向后台传值，后台方法参数传递问题

然后就是Controller方法了，如下所示，直接把前台传过来的参数写成对应的实体类，会自动进行封装

[java] view plain copy 表单用serialize()序列化并且通过ajax向后台传值，后台方法参数传递问题表单用serialize()序列化并且通过ajax向后台传值，后台方法参数传递问题
  1. @RequestMapping("/testt")  
  2. @ResponseBody  
  3. public void login(Book arr){  
  4.         System.out.println(arr.toString);  
  5. }  
表单用serialize()序列化并且通过ajax向后台传值，后台方法参数传递问题

经过测试，可以实现如下功能：
      如果form表单中元素有我们需要的数据，如果被选中则提交，不被选中则不提交，前台传递到后台的参数，会自动封装到对应的实体类中

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