DIV CSS 佈局教程網

 DIV+CSS佈局教程網 >> 網頁腳本 >> JavaScript入門知識 >> AJAX入門 >> AJAX基礎知識 >> ajax+springmvc實現C與View之間的數據交流方法
ajax+springmvc實現C與View之間的數據交流方法
編輯:AJAX基礎知識     

jQuery.post(url, [data], [callback], [type])

url,[data],[callback],[type]String,Map,Function,StringV1.0url:發送請求地址。

data:待發送 Key/value 參數。

callback:發送成功時回調函數。

type:返回內容格式,xml, html, script, json, text, _default。

套用格式:

$.post("test.php", function(data){
  alert("Data Loaded: " + data);
 });

$.get("comment/getComments?parentId="+parentId+"&topicId="+topicId,function(data){
 var appendButton ="";
 var append = "";
 if(data!=""){
  var arr = data.split("$");
  var allTr="";
  for(var i = 0;i<arr.length;i++){
  var arr2 = arr[i].split(',');
  var name = arr2[3];
  var content = arr2[0];
  var time= "/Date("+arr2[1]+")/";
  time = DateFormat(time);
  var id = arr2[2];
  var table = "<table><tr><td>"+content+"</td></tr><tr><td>"+time+"</td></tr></table>";
  appendButton = appendButton+table+"<button type = 'button' id = 'toAddCommentId' onclick = 'replaceFrom("+parentId+",\""+name+"\""+")'>回復</button>";
  }
  appendButton = appendButton+"<button type = 'button' onclick = 'replaceFrom("+parentId+","+"\""+userName+"\""+")'>我也說一句</button>";
 }
 appendButton = appendButton+"<div id = 'commentButton' ></div><div id = 'textareaId'></div>";
 if(data==""){
  appendButton = appendButton+"<textarea id='textareaId"+parentId+"' rows='2' cols='77' validate='required' validate-message='不能為空!' name = 'content' >@"+userName+"...."+"...."+parentId+":</textarea><button type = 'button' id = 'commentContentId' onclick = 'submit("+topicId+","+parentId+","+"\""+userName+"\""+")'>發表</button>";
 }
 $("#addCommentId"+parentId).html(appendButton);
 });

後台:

@RequestMapping(value = "/saveAndGetComments", params = {"topicId","parentId"}, method = RequestMethod.POST)
 @ResponseBody
 public String saveAndGetComments(long topicId,Comment comment,long parentId) throws UnsupportedEncodingException{
 comment.setParentId(parentId);
 commentService.save(comment,topicId);
 List<Comment> comments=commentService.listByCommentId(parentId);
 return append(comments);
 }
 
 private String append(List<Comment> comments) {
 StringBuffer sb=new StringBuffer();
 for(int i=0;i<comments.size();i++){
  Comment comment = comments.get(i);
  sb.append(comment.getContent());
  sb.append(",");
  sb.append(comment.getCreateTime().getTime());
  sb.append(",");
  sb.append(comment.getId());
  sb.append(",");
  sb.append(comment.getUser().getName());
  if(i!=comments.size()-1){
  sb.append("$");
  }
 }
 return sb.toString();
 }

注意,用springmvc3的注解@responseBody來傳遞參數。

經常用到的js函數:

上面由於使用json來傳遞的數據,而js解析json傳過來的日期時,不是我們想要的格式,這時需要對日期進行操作:

首先傳過去的日期將它設為time傳過去 date.getTime()

然後再在js中操作:

var date= "/Date("+time+")/";
date = DateFormat(date);



/**
 * 處理時間
 * @param value
 * @returns {String}
 */
function DateFormat(value) {
  var date = new Date(parseInt(value.replace("/Date(", "").replace(")/", ""), 10));
  var month = date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1) : date.getMonth() + 1;
  var currentDate = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
  var Hours = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
  var Minutes = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
  var Seconds = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();

  return date.getFullYear() + "/" + month + "/" + currentDate + " " + Hours + ":" + Minutes + ":" + Seconds;
}

以上這篇ajax+springmvc實現C與View之間的數據交流方法就是小編分享給大家的全部內容了,希望能給大家一個參考,也希望大家多多支持。

XML學習教程| jQuery入門知識| AJAX入門| Dreamweaver教程| Fireworks入門知識| SEO技巧| SEO優化集錦|
Copyright © DIV+CSS佈局教程網 All Rights Reserved