jsonConfig用法

1.先编写jsonConfig的初始化代码

    private JsonConfigjsonConfig;

 

    public action构造方法() {

 

       jsonConfig = new JsonConfig();

       jsonConfig.registerJsonValueProcessor(Date.class,newJsonValueProcessor() {

           private SimpleDateFormatsdf = new SimpleDateFormat("yyyy-MM-ddHH:mm:ss");

 

           @Override

           public Object processObjectValue(String key,Object value, JsonConfig jsonConfig) {

                returnthis.process(value);

           }

 

           @Override

           public Object processArrayValue(Object value,JsonConfig arg1) {

                returnthis.process(value);

           }

 

           // 处理Date类型返回的Json数值

           private Object process(Object value) {

                if (value ==null) {

                    return"";

                } elseif (value instanceof Date)

                    returnsdf.format((Date)value);

                else {

                    return value.toString();

                }

           }

       });

       // 不该传给前台的字段

       jsonConfig.setJsonPropertyFilter(new PropertyFilter() {

           public boolean apply(Objectsource, String name, Object value) {

                if (sourceinstanceof RaffleLog) {

                    if ("contact".equals(name)) {

                        returntrue;

                    }

                }

                returnfalse;

           }

       });

    }

    /**

    * @param response

    * @param returnType

    * @throws IOException

    */

    private voidprintReturnType2Response(HttpServletResponse response, ReturnType<?>returnType)throws IOException {

       response.setCharacterEncoding("UTF-8");

       response.setContentType("application/json;charset=utf-8");

       response.getWriter().print(JSONObject.fromObject(returnType,jsonConfig));

}

 

2.再在需要跳转的action方法中编写相应的返回代码

ReturnType<Map<String,Integer>> returnType = newReturnType<Map<String, Integer>>();

if(条件){

returnType.setStatus(ReturnType.Status.SUCCESS.getValue());

}else{

       returnType.setStatus(ReturnType.Status.FAIL.getValue());

      }

       returnType.setMsg(sb.toString());

    this.printReturnType2Response(response,returnType);

 

3.一个案例分析：

/** * * @Title:DocInfoCustomAction.java * @Copyright:Copyright (c) 2005 * @Description:<br>* @Created on 2014-4-16 上午9:22:25 * @author 杨凯 */public class DocInfoCustomAction extends DispatchAction{     private finalInteger pageSize = 15; // 每页显示页数     Logger logger= Logger.getLogger(DocInfoCustomAction.class);     privateJsonConfig jsonConfig;     publicDocInfoCustomAction() {        jsonConfig = new JsonConfig();        jsonConfig.registerJsonValueProcessor(Date.class,new JsonValueProcessor() {           private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-ddHH:mm:ss");            @Override           public Object processObjectValue(String key, Object value, JsonConfigjsonConfig) {               return this.process(value);            }            @Override           public Object processArrayValue(Object value, JsonConfig arg1) {               return this.process(value);            }             // 处理Date类型返回的Json数值           private Object process(Object value) {               if (value == null) {                   return "";                }else if (value instanceof Date)                   return sdf.format((Date) value);                else {                   return value.toString();                }            }        });        // 不该传给前台的字段       jsonConfig.setJsonPropertyFilter(new PropertyFilter() {           public boolean apply(Object source, String name, Object value) {               if (source instanceof RaffleLog) {                   if ("contact".equals(name)) {                       return true;                   }                }               return false;            }        });    }     /**     * @paramresponse     * @paramreturnType     * @throwsIOException     */    private voidprintReturnType2Response(HttpServletResponse response, ReturnType<?>returnType) throws IOException {       response.setCharacterEncoding("UTF-8");        response.setContentType("application/json;charset=utf-8");       response.getWriter().print(JSONObject.fromObject(returnType,jsonConfig));    }    /**     * 批量删除操作     *     * @parammapping     * @paramform     * @paramrequest     * @paramresponse     * @return     * @throwsIOException     * @throwsAppException     */    publicActionForward delete(ActionMapping mapping, ActionForm form, HttpServletRequestrequest, HttpServletResponse response) throws IOException, AppException {         Stringids = Tool.getDefaultValue(request, "ids", ""); // 获取下拉列表的值       StringBuffer sb = new StringBuffer();       ReturnType<Map<String, Integer>> returnType = newReturnType<Map<String, Integer>>();         if (ids!= null && !("").equals(ids)) {            try {               String[] idds = ids.split(",");               for (String id : idds) {                   int flag = DocInfoTempletApi.deleteDocInfoCustom(id);                   sb.append("ID为：" + id);                   if (flag == 1) {                       sb.append(" 的记录删除成功!");                   } else {                       sb.append(" 的记录删除失败!");                   }                   sb.append("\r\n");                }            }catch (Exception e) {               logger.debug("DocInfoCustomAction.delete():" + e);            }           returnType.setStatus(ReturnType.Status.SUCCESS.getValue());        } else {           sb.append("条件id不能为空");           returnType.setStatus(ReturnType.Status.FAIL.getValue());        }       returnType.setMsg(sb.toString());       this.printReturnType2Response(response, returnType);        returnnull;    }}