List<TopicSectionBean> MisTypes = topicSectionService.selectSectionList(); 第一种方式： /* StringBuffer b = new StringBuffer(); b.append("["); if (MisTypes.size() > 0) { for (Iterator iter = MisTypes.iterator(); iter.hasNext();) { TopicSectionBean bean = (TopicSectionBean) iter.next(); b.append("{key:\"").append(bean.getKey()).append("\",sectionName:\"") .append(bean.getSectionName()).append("\"}"); if(iter.hasNext()){ b.append(","); } } } b.append("]"); System.out.println(b.toString()+":所有版块"); response.getWriter().print(b.toString());*/ 第二种方式： /*JSONArray json=JSONArray.fromObject(MisTypes); response.getWriter().print(json);*/ 原文链接：https://www.f2er.com/json/288957.html