执行到JSONArray就不执行了

Question

List list=service.getAllCatagory();
response.setCharacterEncoding("utf-8");
PrintWriter out =response.getWriter();
System.out.println("getAllOlts_Catagory doing …………………………………………………………");
JSONArray jsonArray=JSONArray.fromObject(list);
System.out.println("aaaaaaaaaaaaaaaaaa…………………………………………………………");
System.out.println(jsonArray.toString());
out.write(jsonArray.toString());
out.flush();
out.close();

Answer 1

库不全 commons-lang-2.6.jar ezmorph-1.0.6.jar commons-beanutils-1.7.0.jar commons-logging-1.2.jar commons-collections-3.2.1.jar 确认一下库都在