jsp页面通过ajax取值/展示数据及分页显示

jsp页面通过ajax从后台获取数据，在页面展示，并实现分页效果代码：

【JavaScript部分】

<script>
function getComposition(pageno){
	
	//alert(pageno); 
	$.ajax(
	{
		url:'<%=basePath%>composition/compositionlist',
		type:'post',
		data:"pageno="+pageno,
		success:function(data)
		{     
			document.getElementById("composition").innerHTML='';
			var divcontent="";
			var obj = eval('(' + data + ')');
			
			//alert(obj.data.pageno);
			
			console.log(obj);
			
			divcontent+="<table border='1' borderColor='#ccc' style='width:100%;margin:0px;padding:0px;border-collapse:collapse'>";
			divcontent+="<tr><th width='12%' style='text-align:center;background: #79c6fa'>图片</th><th width='12%' style='text-align:center;background: #79c6fa'>绑定</th></tr>";
			  
			 $.each(obj.data.content, function(i,item)
			  { 
				 console.log(item);
				 divcontent+="<tr><td style='text-align:center'><img style='width: 100px;height:50px;margin-top:8px;' src='"+item.img+"' /></td><td style='text-align:center'><input type='radio' class='button6'  id='id' name='compositionid' value="+item.id+" /></td></tr>";
				 
			  });
			 divcontent+="</table>";
			 
			 divcontent+='<div class="pageinfo">';
			 divcontent+='共<span>'+obj.data.totalpages+'</span>页，每页<span>'+obj.data.pagesize+'</span>条，当前是第<span>'+obj.data.pageno+'</span>页';
			 divcontent+='</div>';
			 
			 divcontent+='<div class="pagebar">';
			 
				divcontent+='<button onclick="getComposition(1);"';
				if(obj.data.pageno==1){
					divcontent+='class="button3"  disabled';
				}else if(obj.data.pageno>1){
					divcontent+=' class="button2";'
				}
				divcontent+='>首页</button>';
				
				divcontent+='<button onclick="getComposition('+(obj.data.pageno-1) +');"';
				if(obj.data.pageno==1){
					divcontent+='class="button3"  disabled';
				}else if(obj.data.pageno>1){
					divcontent+=' class="button2";'
				}
				divcontent+='>上页</button>';
				
				divcontent+='<button onclick="getComposition('+(obj.data.pageno+1) +');"';
				if(obj.data.pageno==obj.data.totalpages){
					divcontent+='class="button3"  disabled';
				}else if(obj.data.pageno<obj.data.totalpages){
					divcontent+=' class="button2";'
				}
				divcontent+='>下页</button>';
				
				divcontent+='<button onclick="getComposition('+obj.data.totalpages +');"';
				if(obj.data.pageno==obj.data.totalpages){
					divcontent+='class="button3"  disabled';
				}else if(obj.data.pageno<obj.data.totalpages){
					divcontent+=' class="button2";'
				}
				divcontent+='>末页</button>';
				
			 divcontent+='</div>'; 
			
			document.getElementById("composition").innerHTML=divcontent;
		}
	});
}
</script>

【html部分】

<div id="composition" ></div>