類型轉換
//reqeust.getParameter獲取字符串直接賦值
1 public static Date date(String date_str) { 2 try { 3 Calendar zcal = Calendar.getInstance();//日期類 4 Timestamp timestampnow = new Timestamp(zcal.getTimeInMillis());//轉換成正常的日期格式 5 SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");//改為需要的東西 6 ParsePosition pos = new ParsePosition(0); 7 java.util.Date current = formatter.parse(date_str, pos); 8 timestampnow = new Timestamp(current.getTime()); 9 return timestampnow; 10 } 11 catch (NullPointerException e) { 12 return null; 13 } 14 }
1 //Date類型轉換成String類型 2 public static String toJson(Object obj){ 3 String reuqest=null; 4 //對象映射 5 ObjectMapper mapper=new ObjectMapper(); 6 //設置時間格式 7 SimpleDateFormat dateFormat=new SimpleDateFormat("yyyy年MM月dd日"); 8 mapper.setDateFormat(dateFormat); 9 try { 10 reuqest=mapper.writeValueAsString(obj); 11 } catch (JsonProcessingException e) { 12 // TODO Auto-generated catch block 13 e.printStackTrace(); 14 } 15 return reuqest; 16 }
//String類型轉換成Date類型
1 public static Date date(String date_str) {
2 try { 3 Calendar zcal = Calendar.getInstance();//日期類 4 Timestamp timestampnow = new Timestamp(zcal.getTimeInMillis());//轉換成正常的日期格式 5 SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");//改為需要的東西 6 ParsePosition pos = new ParsePosition(0); 7 java.util.Date current = formatter.parse(date_str, pos); 8 timestampnow = new Timestamp(current.getTime()); 9 return timestampnow; 10 } 11 catch (NullPointerException e) { 12 return null; 13 } 14 }