从序列化的form表单中取用户输入的数据

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jsp代码：

拿select为例：
<select name="studyingnature" >
<c:forEach items="${allDetailsForm.studyingnatureList}" var="form" varStatus="s">
<option value="${form.formid};${form.discription};${form.code}" <c:if test="${study.studyingnature==form.discription}">selected="selected"</c:if>>${form.discription}</option>
</c:forEach>
</select>

js代码：序列表单相当于url后加上 paraname=value&para2=value

function updateResumeAjax(){
  $.ajax({
  url: "#",
  data : encodeURI($('#formid').serialize()),//formid 表单id
  dataType: "json",
  success: function(json){

    alert("更新用户信息完成！");
    location.href = "#";

}
});
}

后台servlet:

String studyingnature = request.getParameter("studyingnature");//参数是 select的name属性
  try {
   studyingnature = URLDecoder.decode(studyingnature, "utf-8");
   if (StringHelper.isNullOrEmpty(studyingnature)) {
    String[] studyingnatures = studyingnature.split(";");
    study.setStudyingnature_code(studyingnatures[2]);
   }
  } catch (UnsupportedEncodingException e1) {
   // TODO Auto-generated catch block
   e1.printStackTrace();
  }