| 提交 | 用户 | 时间 | ||
| 58d006 | 1 | package com.mandi.dao.common; |
| A | 2 | |
| 3 | import java.nio.file.Files; | |
| 4 | import java.nio.file.Paths; | |
| 5 | ||
| 6 | import javax.servlet.ServletContext; | |
| 7 | ||
| 8 | import org.hibernate.Session; | |
| 9 | ||
| 10 | import com.google.gson.JsonArray; | |
| 11 | import com.google.gson.JsonElement; | |
| 12 | import com.google.gson.JsonObject; | |
| 13 | import com.google.gson.JsonParser; | |
| 14 | import com.mandi.common.JSONobj; | |
| 15 | ||
| 16 | ||
| 17 | public class Daomethod { | |
| 18 | public static int countpages(int count,int pagesize) | |
| 19 | { | |
| 20 | if(pagesize==0) | |
| 21 | return 0; | |
| 22 | int pages=(count/pagesize)+((count%pagesize==0)?0:1); | |
| 23 | return pages; | |
| 24 | } | |
| 25 | ||
| 26 | /** | |
| 27 | * | |
| 28 | * @param count | |
| 29 | * @param pagesize | |
| 30 | * @return | |
| 31 | * @author mengly | |
| 32 | * @version 创建时间：2016年7月23日 下午7:28:02 | |
| 33 | */ | |
| 34 | public static int countpage(int count,int pagesize) | |
| 35 | { | |
| 36 | if(pagesize==0) | |
| 37 | return 0; | |
| 38 | //int count=((Number)dao.getSQLOne_noclose(sql)).intValue(); | |
| 39 | int page=(count/pagesize)-((count%pagesize==0)?1:0); | |
| 40 | return page; | |
| 41 | } | |
| 42 | ||
| 43 | ||
| 44 | ||
| 45 | /** | |
| 46 | * | |
| 47 | * @param imgs,json字符串，[{url:"sss",name:"sfsd",size:121},{url:"sss",name:"sfsd",size:121},{url:"sss",name:"sfsd",size:121}] | |
| 48 | * @param c | |
| 49 | */ | |
| 50 | public static void removefiles(String imgs,ServletContext c) | |
| 51 | { | |
| 52 | if(imgs==null||imgs.isEmpty()) | |
| 53 | return; | |
| 54 | try { | |
| 55 | JsonParser jp=new JsonParser(); | |
| 56 | JsonArray ja=jp.parse(imgs).getAsJsonArray(); | |
| 57 | for (JsonElement jsonElement : ja) { | |
| 58 | JsonObject jo=jsonElement.getAsJsonObject(); | |
| 59 | String url=JSONobj.getstring(jo, "url"); | |
| 60 | String realpath=c.getRealPath(url); | |
| 61 | Files.delete(Paths.get(realpath)); | |
| 62 | } | |
| 63 | } catch (Exception e) { | |
| 64 | e.printStackTrace(); | |
| 65 | } | |
| 66 | } | |
| 67 | /** | |
| 68 | * | |
| 69 | * @param s | |
| 70 | * @return | |
| 71 | * @author mengly | |
| 72 | * @version 创建时间：2015年9月15日 下午12:47:53 | |
| 73 | */ | |
| 74 | public static boolean checksession(Session s) | |
| 75 | { | |
| 76 | if(s==null) | |
| 77 | return false; | |
| 78 | Workcheckconnection wc= new Workcheckconnection(); | |
| 79 | s.doWork(wc); | |
| 80 | return wc.isFlg(); | |
| 81 | } | |
| 82 | ||
| 83 | } | |
