jquery遍历json对象集合详解

本文实例采用案例分析的方法介绍了jquery遍历json对象的三种情况，供大家参考，具体内容如下

第一个案例：jquery 遍历json对象集合 常用示例

jsp中

$.ajax({
 url: "${applicationScope.rootpath}common/getContractPage.html?userConId=${userConId}",
 type: "post",
 dataType:"json",
 data: {},
 success: function (jsonText) {
   if(jsonText){
     var status = jsonText.status;
     var msg = jsonText.msg;
     if(status == '500'){
//有异常的信息时
     alert(msg);
 
     }else{
$.each(jsonText,function(i,item){
  var pngPath = item[0];
  var pngName = item[1];
     });
 
     }
   }
 }
      });

jsonText的格式：

{"status":"200","msg":[{"id":"1","name":"n1"},{"id":"2","name":"n2"}]}
{"status":"500","msg":"异常信息"}

java中：

List pngFileList = new ArrayList();//某对象集合
if(null != pngFileList && pngFileList.size() > 0) {
JSonArray pngFileArray =JSONArray.fromObject(pngFileList);

}
if(null != pngFileArray){
this.setTextAjax(pngFileArray.toString());
//异常的格式
//this.setTextAjax("{"status":"500","msg":""+errormsg+""}");//没有记录


public void setTextAjax(String responseContent) {
try {
HttpServletResponse response = getHttpResponse();
response.setContentType("text/html");
response.setCharacterEncoding("UTF-8");
response.setHeader("Pragma", "No-cache");
response.setHeader("Content-Type", "text/html");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
PrintWriter out = response.getWriter();
out.print(responseContent);
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
}
// ajaxResponse = new StringBufferInputStream(responseContent);
}

第二个案例：jQuery 遍历JSON 对象

不说别的，直接贴代码：

第三个案例：jquery中遍历读取json串中的对象

假设我们从服务器端获取如下的json串，其中包括数组。我们该如何遍历读取呢？

复制代码 代码如下:{"result":null,"rows":[{"caishen":"东","fushen":"西北","huajiazi":"甲子","id":1,"nayin":"大海水","shengmen":"南","simen":"北","wugui":"西","xishen":"东南","yanggui":"西南","yingui":"东北"},{"caishen":"东北","fushen":"北","huajiazi":"乙丑","id":2,"nayin":"大林木","shengmen":"西北","simen":"西南","wugui":"东南","xishen":"东","yanggui":"西","yingui":"南"},{"caishen":"西","fushen":"东","huajiazi":"丙寅","id":3,"nayin":"石榴木","shengmen":"北","simen":"西北","wugui":"南","xishen":"东南","yanggui":"东北","yingui":"西南"}],"total":3} 

使用.each难度太高，直接js读取吧

//通过url获取json对象     
     $.post("json/godjson!godlist", function (data){ 
//data.rows返回的是json字符串。需要转换成json对象 
var json = eval(data.rows) 
//json变量现在就是一个数组对象，直接读取每个数组对象。结合属性进行输出 
for(var i=0; i

通过如上的方式就能获取json串的json对象并进行输出。
为大家分享这么多的案例，就是想帮助大家掌握jquery遍历json对象集合的方法，真正理解，希望这篇文章可以帮助到大家。