//Controller
public void 메소드(HttpServletRequest request, HttpServletResponse response) throws Exception {
		JSONObject jsonObject = new JSONObject();
		JSONObject search = new JSONObject();
		search.put("name", value);
		service.method(search, jsonObject);
		response.setContentType("application/x-json;  charset=UTF-8");
		response.getWriter().print(jsonObject);
	}
//Service
public void 메소드(JSONObject search, JSONObject jsonObject) throws java.lang.Exception {
		List> list = dao.method(search);
		
		if(list != null && list.size() > 0) {
			jsonObject.put("data", JSONArray.fromObject(list));
			
		} else {
			jsonObject.put("data", null);
		}
	}

POM.xml DEPENDENCY 추가
mybatis, mybatis-spring, mysql

root-context.xml
bean추가
dataSource, sqlSessionFactory, sqlSession
resource폴더에 mybatis-config.xml 생성


#웹 관련 빈설정 > servlet-context.xml
#웹 무관 빈설정 > root-context.xml