$("#div").html()如何显示一个集合？

十三月的摩羯 2014-01-07 04:25:28

...全文

230 8 打赏收藏转发到动态举报

写回复

用AI写文章

8 条回复

切换为时间正序

请发表友善的回复…

发表回复

别闹腰不好 2014-01-07

打赏
举报



import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

public class JsonUtils {
  
  public static String encodeList(Object[] objs) {
    return encodeList(Arrays.asList(objs));
  }

  @SuppressWarnings("unchecked")
  public static String encodeList(Collection objs) {
    JSONArray list = new JSONArray();
    if (objs == null || objs.size() == 0)
      return list.toString();
    for (Object ae : objs) {
      list.add(ae);
    }
    return list.toString();
  }
  
  @SuppressWarnings("unchecked")
  public static String encodeObject(Object obj){
    if(obj instanceof Collection)
      return encodeList((Collection)obj);
    JSONObject jo = JSONObject.fromObject(obj);
    return jo.toString();
  }
  
  @SuppressWarnings("unchecked")
  public static <T>List<T> decodeList(String str, Class<T> clazz) {
    if (str == null || "".equals(str))
      return null;
    JSONArray obj = JSONArray.fromObject(str);
    Object[] rts = obj.toArray();
    List<T> result = new ArrayList<T>(rts.length);
    for (int i = 0; i < rts.length; i++) {
      Object jo = rts[i];
      T ele = (T)JSONObject.toBean((JSONObject) jo, clazz);
      result.add( ele );
    }
    return result;
  }
  
  @SuppressWarnings("unchecked")
  public static <T>T decodeObject(String json,Class<T> clz){
    JSONObject jsonObject = JSONObject.fromObject(json);
    T bean = (T) JSONObject.toBean(jsonObject, clz);
    return bean;
  }
}

别闹腰不好 2014-01-07

打赏
举报

public static String encodeList(Object[] objs) { return encodeList(Arrays.asList(objs)); } @SuppressWarnings("unchecked") public static String encodeList(Collection objs) { JSONArray list = new JSONArray(); if (objs == null || objs.size() == 0) return list.toString(); for (Object ae : objs) { list.add(ae); } return list.toString(); } @SuppressWarnings("unchecked") public static String encodeObject(Object obj){ if(obj instanceof Collection) return encodeList((Collection)obj); JSONObject jo = JSONObject.fromObject(obj); return jo.toString(); } @SuppressWarnings("unchecked") public static <T>List<T> decodeList(String str, Class<T> clazz) { if (str == null || "".equals(str)) return null; JSONArray obj = JSONArray.fromObject(str); Object[] rts = obj.toArray(); List<T> result = new ArrayList<T>(rts.length); for (int i = 0; i < rts.length; i++) { Object jo = rts[i]; T ele = (T)JSONObject.toBean((JSONObject) jo, clazz); result.add( ele ); } return result; } @SuppressWarnings("unchecked") public static <T>T decodeObject(String json,Class<T> clz){ JSONObject jsonObject = JSONObject.fromObject(json); T bean = (T) JSONObject.toBean(jsonObject, clz); return bean; } } 这个类是将集合转成json的，你可以看一下，js操作json，你可以自己查查

十三月的摩羯 2014-01-07