$(function () {
  $.ajaxSetup({
    async:false
  });
    var url = "/Task/Fenlei";    //servlet的url
    data = {};
    data.flag = "all";
  $.post(url,data,function (result) {
    for(var i=0;i<result.getAll.length;i++){
      var id = result.getAll[i].fenlei_Id;
      var name = result.getAll[i].fenlei_Name;
      var newrow = "<tr id='tr"+id+"'><td>"+result.getAll[i].fenlei_Id+"</td><td id='td"+id+"'>"+result.getAll[i].fenlei_Name+
        "</td><td><button onclick='del("+id+")''>删除</button><button onclick='edit("+id+")'>修改</button></td></tr>"
      $("#AllInfo tr:last").after(newrow);
    }
  },"json");
    $("#add").click(function () {
      addData={};
      var name = $("#name").val();
      addData.name = name;
      addData.flag = "add";
      $.post(url,addData,function (result) {
        var id = result.aFenlei.fenlei_Id;
        var name = result.aFenlei.fenlei_Name;
          var newrow = "<tr id='tr"+id+"'><td>"+result.aFenlei.fenlei_Id+"</td><td id='td"+id+"'>"+result.aFenlei.fenlei_Name+
            "</td><td><button onclick='del("+id+")'>删除</button><button onclick='edit("+id+")'>修改</button></td></tr>"
          $("#AllInfo tr:last").after(newrow);
        
 
      },"json");
    });
});
function del(id) {
  console.log(id);
  var url = "/Task/Fenlei";
  delData = {};
  delData.flag = "delete";
  delData.id = id;
  $.post(url,delData,function (result) {
     if(result) {
       alert("删除成功");
       $("#tr"+id).remove();
     } else {
       alert("删除失败");
     }
  },"json");
};
function edit(id) {
  var url = "/Task/Fenlei";
  editData = {};
  editData.flag = "update";
  var oldname = $("#td"+id).text();
  $("#td"+id).html("<input type='text'class='Input' id='new' name='FenleiName' value='"+oldname+"'/>");
  $("#new").blur(function () {
    var newname = $(".Input").val();
    editData.newname = newname;
    console.log(newname);
    $("#td"+id).html("<td id='td"+id+"'>"+newname+"</td>");
    $.post(url,editData,function(result){
      if(result) {
        alert("修改成功");
      } else {
        alert("修改失败");
      }
    },"json");
  });
}

<%@include file="../inc/top.jsp"%>
<script src="/UploadFiles/2021-04-02/Fenlei.js">

处理的servlet内容如下：


public class FenleiServlet extends HttpServlet {
  protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
      doGet(request,response);
  }
  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    request.setCharacterEncoding("utf-8");
    response.setCharacterEncoding("utf-8");
    String name = request.getParameter("name");     //项目分类名称
    String flag = request.getParameter("flag");
    String id = request.getParameter("id");       //项目分类Id
    FenleiService cs = new FenleiService();
    JSONObject json = new JSONObject();
    if("all".equals(flag)) {
      List<FenleiBean> list = cs.getAll();      //获取所有的项目分类信息
      json.put("getAll",list);
      response.getWriter().print(json.toJSONString());
    }
    if("add".equals(flag)) {      //增加操作。
      FenleiBean cb = cs.add(name);
      json.put("aFenlei",cb);
      response.getWriter().print(json.toJSONString());
    }
    if("delete".equals(flag)) {     //删除操作
       boolean result = cs.delete(id);
      System.out.println(flag);
      System.out.println(result);
      if(result){
        json.put("result",result);
        json.put("msg","删除成功");
        response.getWriter().print(json.toJSONString());
        System.out.println(json.toJSONString());
      } else {
        json.put("result",result);
        json.put("msg","删除失败");
        response.getWriter().print(json.toJSONString());
      }
    }
    if("update".equals(flag)) {    //更新信息
      System.out.println(flag);
      String newname = request.getParameter("newname");
      System.out.println("---------------update newname"+newname);
      boolean result = cs.update(newname);
      if(result){
        json.put("result",result);
        json.put("msg","修改成功");
        response.getWriter().print(json.toJSONString());
        System.out.println(json.toJSONString());
      } else {
        json.put("result",result);
        json.put("msg","修改失败");
        response.getWriter().print(json.toJSONString());
      }
    }
  }
}





</pre><pre name="code" class="javascript">



以上这篇Ajax实现动态显示并操作表信息的方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。