自己在搭建SSM框架的时候（Spring + spring mvc + mybatis）报错内容如下：
No serializer found for class org.json.JSONObject and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS)
报错的意思是用的这个JSONObject对象由于没有实例化引起的 ！！
导包注意点！（版本随意 但是包要导正确）
commons-beanutils-1.7.0.jar
commons-collections-3.2.1.jar
commons-lang-2.4.jar
commons-logging-1.1.3.jar
ezmorph-1.0.3.jar
json-lib-2.2.3-jdk15.jar
JSONArray 和 JSONObject 分别是位于以下
import net.sf.json.JSONArray;import net.sf.json.JSONObject;
后端代码返回
@ResponseBody ???@RequestMapping(method = RequestMethod.POST, value = "/loadItems") ???public JSONArray loadItems(HttpServletRequest request) { ???????int index = Integer.valueOf(request.getParameter("index")); ???????JSONArray json = itemService.loadItemsByIndex(index); ???????System.out.println(json); ???????return json; //返回jsonarray数据 ???}前台AJAX Success函数接收
$.ajax({ ???????????type:"post", ???????????url:"loadItems", ???????????async:"false", ???????????data:{ ???????????????index:1 ???????????}, ???????????dataType:"json", ???????????success:function(data){ ???????????????alert(data); ???????????}, ???????????error:function(request) { ???????????????alert("请求发送失败") ???????????} ?????????????})org.json.JSONObject and no properties discovered 错误解决
原文地址：https://www.cnblogs.com/ChromeT/p/9961047.html