list转json的时候,关于date转换的问题

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java里面时间类型转换成json数据就成这样了:
  "createTime":{"date":30,"day":3,"hours":15,"minutes":14,"month":3,"nanos":0,"seconds":38,"time":1209539678000,"timezoneOffset":-480,"year":108}
  期望的结果:

    将date转化成yyyy-MM-dd HH:mm:ss形式
 

public class DateJsonValueProcessor implements JsonValueProcessor  {private String format = "yyyy-MM-dd HH:mm:ss";public DateJsonValueProcessor() {}public DateJsonValueProcessor(String format) {this.format = format;}@Overridepublic Object processArrayValue(Object value, JsonConfig jsonConfig) {String[] obj = {};if (value instanceof Date[]) {SimpleDateFormat sf = new SimpleDateFormat(format);Date[] dates = (Date[]) value;obj = new String[dates.length];for (int i = 0; i < dates.length; i++) {obj[i] = sf.format(dates[i]);}}return obj;}@Overridepublic Object processObjectValue(String key, Object value, JsonConfig jsonConfig) {if (value instanceof Date) {String str = new SimpleDateFormat(format).format((Date) value);return str;}return value.toString();}public String getFormat() {return format;}public void setFormat(String format) {this.format = format;}}


使用方法:

JsonConfig jsonConfig = new JsonConfig();
jsonConfig.registerJsonValueProcessor(java.util.Date.class, new DateJsonValueProcessor("yyyy-MM-dd HH:mm:ss"));JSONArray jarray = JSONArray.fromObject(list,jsonConfig);temp = jarray.toString();

结果:

"createTime":"2017-02-17 13:59:18"

注意事项:

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



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