jquery ajax 传送json对象

<script type="text/javascript">
var searchModel = {
		"isRead":"",
		"content":"",
		"submitors":{""},
		"startDate":"",
		"endDate":"",
		"projectIds":{""},
		"orderBy":"",
		"order":"",
		"page":1
}
function getJsonData(){
	var var searchModel = {};
	searchModel.isRead=$('#isRead').val();
	searchModel.content=$("#content").val();
	var searchModelStr=JSON.stringify(searchModel);
	alert(searchModelStr);
	return searchModelStr;
}
function search(){
	$.ajax({
		type:'post', 
		url:"/pm/CommentAction1.do?method=findCommentList",
		data:{searchModel:getJsonData()},
		success:function(msg){
			
			
		}
	
	});
}
</script>