判断头像和机构是否存在，不存在时显示默认图片

src/main/webapp/account-set.html

<script type="text/javascript" src="js/jquery-1.11.1.js"></script>
<!-- <script type="text/javascript" src="js/form.js"></script> -->
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript" src="/js/jquery.cookie.js"></script>
<script type="text/javascript" src="/js/common.js"></script>
<script type="text/javascript" src="js/jquery.cookie.js"></script>
<script type="text/javascript" src="js/common.js"></script>
<!-- <script type="text/javascript" src="js/account-set.js"></script> -->
<script type="text/javascript" src="js/jquery.similar.msgbox.js"></script>
<script type="text/javascript" >
		var servPath = "http://121.42.53.174:81";
		var userid = $.cookie("userid");
	 	if(userid){
	 		$(".head-portrait").css("background","url("+servPath+"/images/head/"+userid+"_m.jpg)");
	 		$(".head-portrait").show();
			$(".head-portrait").show();
			$(".unlogin").hide();
				}
	 		$(".portrait-p").attr("src",servPath+"/images/head/"+userid+"_m.jpg");
			$(".portrait-p").load(function(){									
			})
			.error(function(){
				$(".portrait-p").attr("src",servPath+"/images/default-photo.jpg");
			});
		}
		valUser();
		$("#hsearch").on("click",function (){
	   		var searchContent = $("#hsearchContent").val();
    <a href="login-invite-code.html"><div class="unlogin">特邀专家登录</div></a>
    <!--已登录-->
    <div class="head-portrait">
    	<img class="portrait-p" />
        <div class="personal-infor">
            <div class="triangleB"></div>
            <div class="personal-box">

src/main/webapp/css/index.css

/*未登录*/
.unlogin{ width:130px; height:35px; border:1px #fff solid; border-radius:10px;font:14px/35px \5FAE\8F6F\96C5\9ED1,"Microsoft YaHei"; color:#fff; text-align:center; float:right; margin-right:80px; margin-top:10px; cursor:pointer; }
/*已登录*/
.head-portrait{ display:none; width:50px; height:50px; border-radius:50%; background:url(../images/default-photo.jpg) no-repeat center center;background-size:100% 100%;-moz-background-size:100% 100%; float:right; margin-right:80px; margin-top:5px; cursor:pointer; border:1px solid #f8f8f8; }
.head-portrait{ display:none; width:50px; height:50px; border-radius:50%;background-size:100% 100%;-moz-background-size:100% 100%; float:right; margin-right:80px; margin-top:5px; cursor:pointer; border:1px solid #f8f8f8; overflow:hidden; }
.portrait-p{ width:100%;}
.personal-infor{width:202px; height:179px; position:absolute; top:42px; right:80px; display:none;}
.triangleB{ display:block; width:0; height:0; border:8px solid transparent; border-bottom-color:#f3a36c; float:right; margin-right:20px; margin-top:15px;}
.personal-box{ width:202px; /*height:160px;*/ border-radius:10px; background:#f3a36c; clear:both; overflow:hidden;}
.about-in{ width:920px; max-height:850px; height:auto; margin:auto; margin-top:10px;}
.item{ width:100%;overflow: hidden; border:1px #ffa544 solid;box-shadow:1px 1px 1px #ff8400 inset; border-radius:10px; margin-top:18px; }
/*.photo{ width:132px; height:132px; border-radius:50%; border:2px #fca72d solid; margin:20px; background:url(../images/pic1.jpg) no-repeat center center; float:left;}*/ 	
.photo1{width:132px;height:132px;border-radius:50%;border:1px #fca72d solid;margin:20px;float:left;/*background:url(../images/default-photo.jpg)  no-repeat center center;*/background-size:100% 100%;-moz-background-size:100% 100%;}
.photo1{width:132px;height:132px;border-radius:50%;border:1px #fca72d solid;margin:20px;float:left;/*background:url(../images/default-photo.jpg)  no-repeat center center;*/background-size:100% 100%;-moz-background-size:100% 100%; overflow:hidden;}
.synopsis{ float:left; padding:20px 0;color:#000; width:720px;}
.named{display:block;font:24px/34px \5FAE\8F6F\96C5\9ED1,"Microsoft YaHei"; color:#000; float:left;}

src/main/webapp/index.html

<script type="text/javascript" src="js/jquery-1.11.1.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript" src="/js/jquery.cookie.js"></script>
<script type="text/javascript" src="/js/common.js"></script>
<script type="text/javascript" src="js/common.js"></script>
<script type="text/javascript">
	$(function(){  
		loginStatus();
		var servPath = "http://121.42.53.174:81";
		//var userid = $.cookie("userid");
	 	if(userid && userid != "null" && userid!=null){
			$(".head-portrait").show();
			$(".unlogin").hide();
	 		$(".portrait-p").attr("src",servPath+"/images/head/"+userid+"_m.jpg");
			$(".portrait-p").load(function(){									
			})
			.error(function(){
				$(".portrait-p").attr("src",servPath+"/images/default-photo.jpg");
			});
		}
		
	   $("#search").on("click",function (){
	   		var searchContent = $("#searchContent").val();
	   		location.href = "search.html?searchContent="+encodeURI(searchContent);
        <a href="login-invite-code.html"><div class="unlogin">特邀专家登录</div></a>
        <!--已登录-->
        <div class="head-portrait">
        	<img class="portrait-p" />
            <div class="personal-infor">
                <div class="triangleB"></div>
                <div class="personal-box">

src/main/webapp/information-brow.html

	 	var userid = $.cookie("userid");
	 	var professorId = GetQueryString("professorId");
	 	if(professorId){
	 		$(".head-portrait").css("background","url("+servPath+"/images/head/"+userid+"_m.jpg");
	 		$(".portrait-p").attr("src",servPath+"/images/head/"+userid+"_m.jpg");
			$(".portrait-p").load(function(){									
			})
			.error(function(){
				$(".portrait-p").attr("src",servPath+"/images/default-photo.jpg");
			});
         
	 		var subjectShow = function (data){
						}
						var isAgree = $.inArray(userid, $photos);
						var showDiv= "<div class='listbox listbox-browse clear'><div class='list-browse'><span class='like'>"+$data.count+"</span>"+$data.caption+"</div><span  class='plus' data-pid='"+$data.professorId+"' data-caption='"+$data.caption+"' data-isagree='"+isAgree+"'></span><div class='like-num'>";
						var showDiv= "<div class='listbox listbox-browse clear'><div class='list-browse'><span class='like'>"+$data.count+"</span>"+$data.caption+"</div><span class='plus' data-pid='"+$data.professorId+"' data-caption='"+$data.caption+"' data-isagree='"+isAgree+"'></span><div class='like-num'>";
						if($photos.length>10){
							showDiv += "<div class='triangleR'></div>";
						}
						
						if($photos.length>0){
							for(var j =0 ; j< $photos.length;++j){
								showDiv += "<span class='like-people'><img src='"+servPath+"/images/head/"+$photos[j]+"_s.jpg'></span>";
								showDiv += "<span class='like-people'><img class='like-h' src='"+servPath+"/images/head/"+$photos[j]+"_s.jpg'></span>";
								
							} 
						}
						showDiv += "</div></div>";
						$("#researchAreaShow").append(showDiv);
				
						
						$(".like-h").load(function(){								
						})
						.error(function(){
							$(this).attr("src",servPath+"/images/default-photo.jpg");
						});	
							
					}
				}			
			}
							$("#titleS").text($info.title);
							$("#orgNameS").text($info.orgName);
							$("#headImage").attr("src",servPath+"/images/head/"+professorId+"_l.jpg");
							$("#orgImage").attr("src","/images/org/"+$info.orgId+".jpg");
								$("#headImage").load(function(){									
								})
								.error(function(){
									$("#headImage").attr("src",servPath+"/images/default-photo.jpg");
								});
							$("#orgImage").attr("src",servPath+"/images/org/"+$info.orgId+".jpg");
								$("#orgImage").load(function(){									
								})
								.error(function(){
									$("#orgImage").attr("src",servPath+"/images/default-icon.jpg");
								});
							$("#descpS").text($info.descp);
							//显示专家信息到保存数据
							$("#name").val($info.name);
	<a href="login-invite-code.html"><div class="unlogin">特邀专家登录</div></a>
	<!--已登录-->
	<div class="head-portrait">
    	<img class="portrait-p" />
		<div class="personal-infor">
			<div class="triangleB"></div>
			<div class="personal-box">

src/main/webapp/information.html

		var servPath = "http://121.42.53.174:81";
	 	var userid = $.cookie("userid");
	 	if(userid){
	 		$(".head-portrait").css("background","url("+servPath+"/images/head/"+userid+"_m.jpg)");
	 		$(".head-portrait").show();
	 		
			$(".head-portrait").show();
			$(".unlogin").hide();
	 		$(".portrait-p").attr("src",servPath+"/images/head/"+userid+"_m.jpg");
			$(".portrait-p").load(function(){									
			})
			.error(function(){
				$(".portrait-p").attr("src",servPath+"/images/default-photo.jpg");
			});
			
	 		var subjectShow = function (data){
				if(data != undefined &&  data.length != 0 ){
							$("#titleS").text($info.title);
							$("#orgNameS").text($info.orgName);
							$("#headImage").attr("src",servPath+"/images/head/"+userid+"_l.jpg");
								$("#headImage").load(function(){									
								})
								.error(function(){
									$("#headImage").attr("src",servPath+"/images/default-photo.jpg");
								});
							$("#orgImage").attr("src",servPath+"/images/org/"+$info.orgId+".jpg");
								$("#orgImage").load(function(){									
								})
								.error(function(){
									$("#orgImage").attr("src",servPath+"/images/default-icon.jpg");
								});
							$("#descpS").text($info.descp);
							//显示专家信息到保存数据
							$("#name").val($info.name);

src/main/webapp/search.html

		var servPath = "http://121.42.53.174:81";
		var userid = $.cookie("userid");
	 	if(userid){
	 		$(".head-portrait").css("background","url("+servPath+"/images/head/"+userid+"_m.jpg)");
	 		$(".head-portrait").show();
			$(".head-portrait").show();
			$(".unlogin").hide();
	 		$(".portrait-p").attr("src",servPath+"/images/head/"+userid+"_m.jpg");
			$(".portrait-p").load(function(){									
			})
			.error(function(){
				$(".portrait-p").attr("src",servPath+"/images/default-photo.jpg");
			});
		}
		$("#searchContent").val(GetQueryString("searchContent")); 
						"success" : function($data) {
							if ($data.success) {
								for(var i = 0 ; i < $data.data.data.length ; i++){
									   
									//创建HTML标签  
									var dataHtml = "<div class='item'>";
									
									dataHtml += "<a  id='infoi'  href='information-brow.html?professorId="+$data.data.data[i].id+"' ><div class='photo1'><img class='images' style='width:100%;'  src='images/head/"+$data.data.data[i].id+"_l.jpg'/></div></a>";
								
									$(".images").eq(i).load(function(){
										
										})
									.error(function(){
										
										$(this).attr("src","images/default-photo.jpg");
									  });
									
									
									
									dataHtml += "<a  id='infoi'  href='information-brow.html?professorId="+$data.data.data[i].id+"' ><div class='photo1'><img class='images' style='width:100%;'  src='"+servPath+"/images/head/"+$data.data.data[i].id+"_l.jpg'/></div></a>";
									dataHtml += "<div class='synopsis'>";
									dataHtml += "<a href='information-brow.html?professorId="+$data.data.data[i].id+"' class='named'>";
									if(typeof($data.data.data[i].name) !== "undefined"){
									$("#professorList").append(dataHtml);
									
									
									//获取头像		
									$(".images").load(function(){								
									})
									.error(function(){
										$(this).attr("src",servPath+"/images/default-photo.jpg");
									});	
									
									//点击查看当前信息
									(function(i){
										$('.photo1').click(function()
									{
	<a href="login-invite-code.html"><div class="unlogin">特邀专家登录</div></a>
	<!--已登录-->
	<div class="head-portrait">
    	<img class="portrait-p" />
		<div class="personal-infor">
			<div class="triangleB"></div>
			<div class="personal-box">