json-lib date对象转json
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | import net.sf.json.JSONObject; import net.sf.json.JsonConfig; import net.sf.json.processors.JsonValueProcessor; public class DateJsonValueProcessor implements JsonValueProcessor { public static final String DEFAULT_DATE_PATTERN = "yyyy-MM-dd HH:mm:ss"; private DateFormat dateFormat; /** * 构造方法. * * @param datePattern 日期格式 */ public DateJsonValueProcessor(String datePattern) { try { dateFormat = new SimpleDateFormat(datePattern); } catch (Exception ex) { dateFormat = new SimpleDateFormat(DEFAULT_DATE_PATTERN); } } public Object processArrayValue(Object value, JsonConfig jsonConfig) { return process(value); } public Object processObjectValue(String key, Object value, JsonConfig jsonConfig) { return process(value); } private Object process(Object value) { if (value == null) { value = new Date(); //为null时返回当前日期,也可以返回"",看需要 } return dateFormat.format((Date) value); } public static String map2JSonStr(Map map) { JsonConfig jsonConfig = new JsonConfig(); DateJsonValueProcessor beanProcessor = new DateJsonValueProcessor( DEFAULT_DATE_PATTERN); jsonConfig.registerJsonValueProcessor(Date.class, beanProcessor); JSONObject jsonObject = JSONObject.fromObject(map, jsonConfig); return jsonObject.toString(); } //将对象转换为json string,使用上面定义的的日期格式 @SuppressWarnings("unchecked") public static JSONObject obj2JsonObj(Object obj) { JsonConfig jsonConfig = new JsonConfig(); DateJsonValueProcessor beanProcessor = new DateJsonValueProcessor( DEFAULT_DATE_PATTERN); jsonConfig.registerJsonValueProcessor(Date.class, beanProcessor); JSONObject jsonObject = JSONObject.fromObject(obj, jsonConfig); return jsonObject; } } import net.sf.json.JSONObject; import net.sf.json.JsonConfig; import net.sf.json.processors.JsonValueProcessor; public class DateJsonValueProcessor implements JsonValueProcessor { public static final String DEFAULT_DATE_PATTERN = "yyyy-MM-dd HH:mm:ss"; private DateFormat dateFormat; /** * 构造方法. * * @param datePattern 日期格式 */ public DateJsonValueProcessor(String datePattern) { try { dateFormat = new SimpleDateFormat(datePattern); } catch (Exception ex) { dateFormat = new SimpleDateFormat(DEFAULT_DATE_PATTERN); } } public Object processArrayValue(Object value, JsonConfig jsonConfig) { return process(value); } public Object processObjectValue(String key, Object value, JsonConfig jsonConfig) { return process(value); } private Object process(Object value) { if (value == null) { value = new Date(); //为null时返回当前日期,也可以返回"",看需要 } return dateFormat.format((Date) value); } public static String map2JSonStr(Map map) { JsonConfig jsonConfig = new JsonConfig(); DateJsonValueProcessor beanProcessor = new DateJsonValueProcessor( DEFAULT_DATE_PATTERN); jsonConfig.registerJsonValueProcessor(Date.class, beanProcessor); JSONObject jsonObject = JSONObject.fromObject(map, jsonConfig); return jsonObject.toString(); } //将对象转换为json string,使用上面定义的的日期格式 @SuppressWarnings("unchecked") public static JSONObject obj2JsonObj(Object obj) { JsonConfig jsonConfig = new JsonConfig(); DateJsonValueProcessor beanProcessor = new DateJsonValueProcessor( DEFAULT_DATE_PATTERN); jsonConfig.registerJsonValueProcessor(Date.class, beanProcessor); JSONObject jsonObject = JSONObject.fromObject(obj, jsonConfig); return jsonObject; } } |
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