实体类中Date转JSON,格式由TimeStamp类型转为Date类型

来源：互联网发布：sql统计列编辑：程序博客网时间：2024/05/21 13:58

带有Date数据的实体类在转为 JSON数据直接转会：

[{

"meaparam_id":1,"m_time":"2017-08",

"ts":{"nanos":0,"time":1501048842000,"minutes":0,"seconds":42,"hours":14,"month":6,"year":117,"timezoneOffset":-480,"day":3,"date":26},

"pk_id":15,"m_name":"ert","dr":0

}]

但我们希望

[{

"meaparam_id":1,"m_time":"2017-08","ts":"2017-07-26 14:00:42","pk_id":15,"m_name":"ert","dr":0

}]

可以使用下面方法：

public class JsonDateValueProcessor implements JsonValueProcessor {      private String format = "yyyy-MM-dd HH:mm:ss";         public Object processArrayValue(Object value, JsonConfig config) {          return process(value);       }      public Object processObjectValue(String arg0, Object value, JsonConfig config) {           return process(value);        }      private Object process(Object value){             //遇到类型为日期的，就自动转换成“yyyy-MM-dd HH:mm:ss”格式的字符串          if(value instanceof Date){                 SimpleDateFormat sdf = new SimpleDateFormat(format,Locale.UK);                 return sdf.format(value);             }        return value == null ? "" : value.toString();         }}

JsonConfig jsonConfig = new JsonConfig();jsonConfig.registerJsonValueProcessor(Date.class, new JsonDateValueProcessor());JSONArray json = JSONArray.fromObject(pageResult.getData(),jsonConfig);System.out.println(json);

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