ajax数据返回进行遍历的实例讲解

后台返回的数据：

{"receiveList":[{"receive_dept_id":"1007873","receive_dept_desc":"区公司领导","guid":"2016112316042622494230","receive_platform_id":"001"},{"receive_dept_id":"1007876","receive_dept_desc":"主任","guid":"2016112316042626240391","receive_platform_id":"001"}]}

其实仔细分析返回的格式，很简单，就是一个Map，里面放了一个List，List里面有各种参数。

前端页面的请求

$.ajax({url:"/moduleAuthen/default.do?method=loadAllReceive",dataType:"json", //返回的数据是json 格式data：$("#fom1").serialize, //提交id为form1的所有参数success:function(data){var json =data.receiveList;//第一种方式的遍历 for(var index in json){ //其实index 就是个索引 var guid =json[index].guid; var receive_dept_desc =json[index].receive_dept_desc;}//还有一种jquery 方式的遍历，效果其实是一样的，拿到后台返回我们的数据，我们就可以进行各种操作了。$.each(json,index){ var guid =json[index].guid; var receive_dept_desc =json[index].receive_dept_desc;}}}){ "compress":[<#if d_live??><#-- 参数：int pageNo --><#assign page = request.getParameter("page")!"null"><#assign page = request.getParameter("page")!"null"><#if page!="null" && page!=""><#assign page = page?number><#else><#assign page=1></#if><#-- 参数：int pageSize--><#assign pagesize = request.getParameter("pagesize")!"null"><#if pagesize!="null" && pagesize!=""><#assign pagesize = pagesize?number><#else><#assign pagesize=10></#if><#if d_live.getLiveInfoList( page,pagesize,"3")??><#assign pagedContent = d_live.getLiveInfoList( page,pagesize,"3")!"null"><#if pagedContent.getContent()??><#assign LiveInfo = pagedContent.getContent()!"null"> <#-- LiveInfo数据源 --><#if LiveInfo??>       <#list LiveInfo as liveInfo>         <#assign liveId = liveInfo.getLiveId()!"null">     <#assign liveInfoUrl = d_live.getLiveInfo("${liveId}")!"null">     <#assign liveUrl = liveInfoUrl.getPlayUrl()!"null"> <#-- 直播链接地址 -->      {"liveId":"${liveId}","liveUrl":"${liveUrl}"}<#if liveInfo_has_next>,</#if></#list> </#if></#if></#if> </#if> ]}/*异步数据*/var liveId= $("#liveId").val();var asyurl="http://wap.cmread.com/rbc/t/liveindex.jsp?vt=9"+"&ol=560395";alert("异步请求之前");setTimeout(function(){ alert("进入定时器,还没有异步");$.ajax({url:asyurl,type:"POST",dataType:"json",success: function(data){  alert("异步获取数据成功"); //var data = eval('('+data+')'); compress = data.compress;   for(var i=0;i<compress.length;i++){  alert("进入for循环");  var asyliveId=compress[i].liveId;  if(asyliveId==liveId){   alert("匹配相同");  var liveUrl=compress[i].liveUrl;  $("#live").find("source").attr("src",liveUrl);  }  }  alert("执行第一次支部请求,改变地址是"+$("#live").find("source").attr("src"));  },error:function(){ console.log("error"); }});},3000);