如何将Map或JavaBean的List对象转换为适合Ext之Grid的json串？

[u010053185]

如何将Map或JavaBean的List对象转换为适合Ext之Grid的json串？

[花谢尊前不敢香]

public static String List2JSONStr(List list, int totalRowCount) {
		if (list == null || list.isEmpty()) {
			return "{\"rowCount\":\"0\",\"rows\":[]}";
		}
		int len = list.size();
		StringBuffer strBuf = new StringBuffer("{\"rowCount\":\"");
		strBuf.append(totalRowCount != 0 ? totalRowCount : len).append("\",");
		strBuf.append("\"rows\":").append("[ ");
		Object obj = null;
		JSONObject jsonObj = null;
		for (int i = 0; i < len; i++) {
			obj = list.get(i);
			// if (!(obj instanceof Map)) continue;
			if (obj instanceof Map)
				jsonObj = JSONObject.fromObject(obj);
			else
				jsonObj = JSONObject.fromObject(Bean2Map(obj));
			strBuf.append(jsonObj.toString());
			strBuf.append(",");
		}
		strBuf.deleteCharAt(strBuf.length() - 1).append(" ]}");
		return strBuf.toString();
	}

看看是否适合你，在一个项目里见到过。

[15年老程创业中]

用 json-lib-2.2.1-jdk15.jar

 JSONArray array = JSONArray.fromObject(list);
        this.jsonString = "{totalCount:" + list.size() + ",results:" + array.toString() + "}";