json相关

JSONArray jsonRoot =new JSONArray();

 JSONObject json = new JSONObject();

 json.put("list",list);

 json.put("listappCount",listappCount);

 jsonRoot.add(json);

ResponseUtils.renderJson(response,jsonRoot.toString());

 

2.发送单个的

response.setContentType("json/html;charset=UTF-8");

response.getWriter().print(result);    

 response.getWriter().close();

 

2.发送json方式

1. JSONArray result =new JSONArray();

JSONArray json = JSONArray.fromObject(list);

int totalCount =appCommentService.getTotalCount(whereStr);

result.add(totalCount);

result.add(json);

response.setContentType("json/html;charset=UTF-8");

response.getWriter().print(result);

response.getWriter().close();

 

 

2.String json=JSONArray.toJSONString(list);

  ResponseUtils.renderJson(response,json);

 

3.String json=JSONArray.toJSONString(list);

response.setContentType("json/html;charset=UTF-8");

response.getWriter().print(json);

response.getWriter().close();

4.import net.sf.json.JSONObject;//JSONObeject所在的包，到网上搜索很快就能找到
JSONObject jsonObj = new JSONObject(json);
String SSGM = jsonObj.get("SSGM");//获取JSON中SSGM的值便于判断
if(null == SSGM) {
    jsonObj .put("SSGM","")//如果为null那么将SSGM的值赋值为""
}

5.json串的拼接：

json +="{"

  +"\"id\":\"portal\","

  +"\"text\":\"部署到门户\","

  +"\"checked\":\"false\","

  +"\"group\":\"theme\","

  +"\"handler\":onMunuItem"

  +"}";