java 常用工具类 方法整理

java 常用工具类 方法整理

总结了下项目中常用的一些通用方法。

代码块

package com.wemall.core.tools;

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import com.wemall.core.query.support.IPageList;
import com.wemall.foundation.domain.*;
import com.wemall.lucene.LuceneResult;
import org.jsoup.Jsoup;
import org.jsoup.safety.Whitelist;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.web.servlet.ModelAndView;

import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletRequest;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.*;
import java.math.BigDecimal;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.text.DecimalFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 通用工具
 */
public class CommUtil {
    private static final SimpleDateFormat dateFormat = new SimpleDateFormat(
        "yyyy-MM-dd");

    private static final Whitelist user_content_filter = Whitelist.relaxed();
    static int totalFolder;
    static int totalFile;

    static {
        user_content_filter.addTags(new String[] { "embed", "object", "param", "span", "div",
                                    "font"
                                                 });
        user_content_filter.addAttributes(":all", new String[] { "style", "class", "id",
                                          "name"
                                                               });
        user_content_filter.addAttributes("object", new String[] { "width", "height",
                                          "classid", "codebase"
                                                                 });
        user_content_filter.addAttributes("param", new String[] { "name", "value" });
        user_content_filter.addAttributes("embed", new String[] { "src", "quality", "width",
                                          "height", "allowFullScreen", "allowScriptAccess", "flashvars",
                                          "name", "type", "pluginspage"
                                                                });

        totalFolder = 0;
        totalFile = 0;
    }

//转小写
    public static String first2low(String str){
        String s = "";
        s = str.substring(0, 1).toLowerCase() + str.substring(1);

        return s;
    }

 // 转大写
    public static String first2upper(String str){
        String s = "";
        s = str.substring(0, 1).toUpperCase() + str.substring(1);

        return s;
    }

 // 字符转List 
    public static List<String> str2list(String s)
    throws IOException {
        List list = new ArrayList();
        if ((s != null) && (!s.equals(""))){
            StringReader fr = new StringReader(s);
            BufferedReader br = new BufferedReader(fr);
            String aline = "";
            while ((aline = br.readLine()) != null){
                list.add(aline);
            }
        }

        return list;
    }

 // 格式化日期 
    public static Date formatDate(String s){
        Date d = null;
        try {
            d = dateFormat.parse(s);
        } catch (Exception localException){
        }

        return d;
    }

 // 格式化日期 
    public static Date formatDate(String s, String format){
        Date d = null;
        try {
            SimpleDateFormat dFormat = new SimpleDateFormat(format);
            d = dFormat.parse(s);
        } catch (Exception localException){
        }

        return d;
    }

   // 格式化日期 
    public static String formatTime(String format, Object v){
        if (v == null)
            return null;
        if (v.equals(""))
            return "";
        SimpleDateFormat df = new SimpleDateFormat(format);

        return df.format(v);
    }

   // 格式化日期 转为yyyy-MM-dd HH:mm:ss 格式
    public static String formatLongDate(Object v){
        if ((v == null) || (v.equals("")))
            return "";
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

        return df.format(v);
    }

  // 格式化日期 转为yyyy-MM-dd 格式
    public static String formatShortDate(Object v){
        if (v == null)
            return null;
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");

        return df.format(v);
    }

    // UTF-8解码
    public static String decode(String s){
        String ret = s;
        try {
            ret = URLDecoder.decode(s.trim(), "UTF-8");
        } catch (Exception localException){
        }

        return ret;
    }

    // UTF-8编码
    public static String encode(String s){
        String ret = s;
        try {
            ret = URLEncoder.encode(s.trim(), "UTF-8");
        } catch (Exception localException){
        }

        return ret;
    }

    public static String convert(String str, String coding){
        String newStr = "";
        if (str != null)
            try {
                newStr = new String(str.getBytes("ISO-8859-1"), coding);
            } catch (Exception e){
                return newStr;
            }

        return newStr;
    }

    /**
     * 保存文件到服务器
     * @param request
     * @param filePath
     * @param saveFilePathName
     * @param saveFileName
     * @param extendes
     * @return
     * @throws IOException
     */
    public static Map saveFileToServer(HttpServletRequest request, String filePath, String saveFilePathName, String saveFileName, String[] extendes)
    throws IOException {
        MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest)request;
        CommonsMultipartFile file = (CommonsMultipartFile)multipartRequest.getFile(filePath);
        Map map = new HashMap();
        if ((file != null) && (!file.isEmpty())){
            String extend = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".") + 1).toLowerCase();
            if ((saveFileName == null) || (saveFileName.trim().equals(""))){
                saveFileName = UUID.randomUUID().toString() + "." + extend;
            }
            if (saveFileName.lastIndexOf(".") < 0){
                saveFileName = saveFileName + "." + extend;
            }
            float fileSize = Float.valueOf((float)file.getSize()).floatValue();
            List errors = new ArrayList();
            boolean flag = true;
            if (extendes != null){
                for (String s : extendes){
                    if (extend.toLowerCase().equals(s)){
                        flag = true;
                    }
                }
            }
            if (flag){
                File path = new File(saveFilePathName);
                if (!path.exists()){
                    path.mkdir();
                }
                SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
                DataOutputStream out = new DataOutputStream(
                    new FileOutputStream(saveFilePathName + File.separator + saveFileName));
                InputStream is = null;
                try {
                    is = file.getInputStream();
                    int size = (int)fileSize;
                    byte[] buffer = new byte[size];
                    while (is.read(buffer) > 0)
                        out.write(buffer);
                } catch (IOException exception){
                    exception.printStackTrace();
                } finally {
                    if (is != null){
                        is.close();
                    }
                    if (out != null){
                        out.close();
                    }
                }
                if (isImg(extend)){
                    File img = new File(saveFilePathName + File.separator + saveFileName);
                    try {
                        BufferedImage bis = ImageIO.read(img);
                        int w = bis.getWidth();
                        int h = bis.getHeight();
                        map.put("width", Integer.valueOf(w));
                        map.put("height", Integer.valueOf(h));
                    } catch (Exception localException){
                    }
                }
                map.put("mime", extend);
                map.put("fileName", saveFileName);
                map.put("fileSize", Float.valueOf(fileSize));
                map.put("error", errors);
                map.put("oldName", file.getOriginalFilename());
            }else{
                errors.add("不允许的扩展名");
            }
        }else{
            map.put("width", Integer.valueOf(0));
            map.put("height", Integer.valueOf(0));
            map.put("mime", "");
            map.put("fileName", "");
            map.put("fileSize", Float.valueOf(0.0F));
            map.put("oldName", "");
        }

        return map;
    }

    //判断是否是图片格式
    public static boolean isImg(String extend){
        boolean ret = false;
        List list = new ArrayList();
        list.add("jpg");
        list.add("jpeg");
        list.add("bmp");
        list.add("gif");
        list.add("png");
        list.add("tif");
        for (String s : list){
            if (s.equals(extend))
                ret = true;
        }

        return ret;
    }

    public static final void waterMarkWithImage(String pressImg, String targetImg, int pos, float alpha){
        try {
            File _file = new File(targetImg);
            Image src = ImageIO.read(_file);
            int width = src.getWidth(null);
            int height = src.getHeight(null);
            BufferedImage image = new BufferedImage(width, height, 1);
            Graphics2D g = image.createGraphics();
            g.drawImage(src, 0, 0, width, height, null);

            File _filebiao = new File(pressImg);
            Image src_biao = ImageIO.read(_filebiao);
            g.setComposite(AlphaComposite.getInstance(10, alpha / 100.0F));
            int width_biao = src_biao.getWidth(null);
            int height_biao = src_biao.getHeight(null);
            int x = 0;
            int y = 0;

            if (pos == 2){
                x = (width - width_biao) / 2;
                y = 0;
            }
            if (pos == 3){
                x = width - width_biao;
                y = 0;
            }
            if (pos == 4){
                x = width - width_biao;
                y = (height - height_biao) / 2;
            }
            if (pos == 5){
                x = width - width_biao;
                y = height - height_biao;
            }
            if (pos == 6){
                x = (width - width_biao) / 2;
                y = height - height_biao;
            }
            if (pos == 7){
                x = 0;
                y = height - height_biao;
            }
            if (pos == 8){
                x = 0;
                y = (height - height_biao) / 2;
            }
            if (pos == 9){
                x = (width - width_biao) / 2;
                y = (height - height_biao) / 2;
            }
            g.drawImage(src_biao, x, y, width_biao, height_biao, null);

            g.dispose();
            FileOutputStream out = new FileOutputStream(targetImg);
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
            encoder.encode(image);
            out.close();
        } catch (Exception e){
            e.printStackTrace();
        }
    }

    public static boolean createSmall(String source, String target, int width, int height){
        try {
            File sourceFile = new File(source);
            File targetFile = new File(target);
            BufferedImage bis = ImageIO.read(sourceFile);
            int w = bis.getWidth();
            int h = bis.getHeight();
            int nw = width;
            int nh = nw * h / w;
            ImageCompress.ImageScale(source, target, width, height);
            return true;
        } catch (Exception e){
            e.printStackTrace();
        }

        return false;
    }

    public static boolean createSmall_old(String source, String target, int width){
        try {
            File sourceFile = new File(source);
            File targetFile = new File(target);
            BufferedImage bis = ImageIO.read(sourceFile);
            int w = bis.getWidth();
            int h = bis.getHeight();
            int nw = width;
            int nh = nw * h / w;
            ImageScale is = new ImageScale();
            is.saveImageAsJpg(source, target, nw, nh);
            return true;
        } catch (Exception e){
            e.printStackTrace();
        }

        return false;
    }

    public static boolean waterMarkWithText(String filePath, String outPath, String text, String markContentColor, Font font, int pos, float qualNum){
        ImageIcon imgIcon = new ImageIcon(filePath);
        Image theImg = imgIcon.getImage();
        int width = theImg.getWidth(null);
        int height = theImg.getHeight(null);
        BufferedImage bimage = new BufferedImage(width, height, 1);
        Graphics2D g = bimage.createGraphics();
        if (font == null){
            font = new Font("黑体", 1, 30);
            g.setFont(font);
        }else{
            g.setFont(font);
        }
        g.setColor(getColor(markContentColor));
        g.setBackground(Color.white);
        g.drawImage(theImg, 0, 0, null);
        FontMetrics metrics = new FontMetrics(font){
        };
        Rectangle2D bounds = metrics.getStringBounds(text, null);
        int widthInPixels = (int)bounds.getWidth();
        int heightInPixels = (int)bounds.getHeight();
        int left = 0;
        int top = heightInPixels;

        if (pos == 2){
            left = width / 2;
            top = heightInPixels;
        }
        if (pos == 3){
            left = width - widthInPixels;
            top = heightInPixels;
        }
        if (pos == 4){
            left = width - widthInPixels;
            top = height / 2;
        }
        if (pos == 5){
            left = width - widthInPixels;
            top = height - heightInPixels;
        }
        if (pos == 6){
            left = width / 2;
            top = height - heightInPixels;
        }
        if (pos == 7){
            left = 0;
            top = height - heightInPixels;
        }
        if (pos == 8){
            left = 0;
            top = height / 2;
        }
        if (pos == 9){
            left = width / 2;
            top = height / 2;
        }
        g.drawString(text, left, top);
        g.dispose();
        try {
            FileOutputStream out = new FileOutputStream(outPath);
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
            JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bimage);
            param.setQuality(qualNum, true);
            encoder.encode(bimage, param);
            out.close();
        } catch (Exception e){
            return false;
        }

        return true;
    }

//创建文件夹
    public static boolean createFolder(String folderPath){
        boolean ret = true;
        try {
            File myFilePath = new File(folderPath);
            if ((!myFilePath.exists()) && (!myFilePath.isDirectory())){
                ret = myFilePath.mkdirs();
                if (!ret)
                    System.out.println("创建文件夹出错");
            }
        } catch (Exception e){
            System.out.println("创建文件夹出错");
            ret = false;
        }

        return ret;
    }

    public static List toRowChildList(List list, int perNum){
        List l = new ArrayList();
        if (list == null){
            return l;
        }

        for (int i = 0; i < list.size(); i += perNum){
            List cList = new ArrayList();
            for (int j = 0; j < perNum; j++)
                if (i + j < list.size())
                    cList.add(list.get(i + j));
            l.add(cList);
        }

        return l;
    }

    public static List copyList(List list, int begin, int end){
        List l = new ArrayList();
        if (list == null)
            return l;
        if (end > list.size())
            end = list.size();
        for (int i = begin; i < end; i++){
            l.add(list.get(i));
        }

        return l;
    }

    //判断是否null ""
    public static boolean isNotNull(Object obj){
        return (obj != null) && (!obj.toString().equals(""));
    }

   //复制文件
    public static void copyFile(String oldPath, String newPath){
        try {
            int bytesum = 0;
            int byteread = 0;
            File oldfile = new File(oldPath);
            if (oldfile.exists()){
                InputStream inStream = new FileInputStream(oldPath);
                FileOutputStream fs = new FileOutputStream(newPath);
                byte[] buffer = new byte[1444];

                while ((byteread = inStream.read(buffer)) != -1){
                    bytesum += byteread;
                    fs.write(buffer, 0, byteread);
                }
                inStream.close();
            }
        } catch (Exception e){
            System.out.println("复制单个文件操作出错 ");
            e.printStackTrace();
        }
    }

  //删除文件
    public static boolean deleteFolder(String path){
        boolean flag = false;
        File file = new File(path);

        if (!file.exists()){
            return flag;
        }

        if (file.isFile()){
            return deleteFile(path);
        }

        return deleteDirectory(path);
    }

    public static boolean deleteFile(String path){
        boolean flag = false;
        File file = new File(path);

        if ((file.isFile()) && (file.exists())){
            file.delete();
            flag = true;
        }

        return flag;
    }

    public static boolean deleteDirectory(String path){
        if (!path.endsWith(File.separator)){
            path = path + File.separator;
        }
        File dirFile = new File(path);

        if ((!dirFile.exists()) || (!dirFile.isDirectory())){
            return false;
        }
        boolean flag = true;

        File[] files = dirFile.listFiles();
        for (int i = 0; i < files.length; i++){
            if (files[i].isFile()){
                flag = deleteFile(files[i].getAbsolutePath());
                if (!flag)
                    break;
            }else{
                flag = deleteDirectory(files[i].getAbsolutePath());
                if (!flag)
                    break;
            }
        }
        if (!flag){
            return false;
        }

        return dirFile.delete();
    }

    public static String showPageStaticHtml(String url, int currentPage, int pages){
        String s = "";
        if (pages > 0){
            if (currentPage >= 1){
                s = s + "首页 ";
                if (currentPage > 1){
                    s = s + "上一页 ";
                }
            }
            int beginPage = currentPage - 3 < 1 ? 1 : currentPage - 3;
            if (beginPage <= pages){
                s = s + "第　";
                int i = beginPage;
                for (int j = 0; (i <= pages) && (j < 6); j++){
                    if (i == currentPage)
                        s = s + "" + i + " ";
                    else
                        s = s + "" + i +
                            " ";
                    i++;
                }

                s = s + "页　";
            }
            if (currentPage <= pages){
                if (currentPage < pages){
                    s = s + "下一页 ";
                }
                s = s + "末页 ";
            }
        }

        return s;
    }

    public static String showPageHtml(String url, String params, int currentPage, int pages){
        String s = "";
        if (pages > 0){
            if (currentPage >= 1){
                s = s + "首页 ";
                if (currentPage > 1){
                    s = s + "上一页 ";
                }
            }
            int beginPage = currentPage - 3 < 1 ? 1 : currentPage - 3;
            if (beginPage <= pages){
                s = s + "第　";
                int i = beginPage;
                for (int j = 0; (i <= pages) && (j < 6); j++){
                    if (i == currentPage)
                        s = s + "" + i + " ";
                    else
                        s = s + "" + i + " ";
                    i++;
                }

                s = s + "页　";
            }
            if (currentPage <= pages){
                if (currentPage < pages){
                    s = s + "下一页 ";
                }
                s = s + "末页 ";
            }
        }

        return s;
    }

    public static String showPageFormHtml(int currentPage, int pages){
        String s = "";
        if (pages > 0){
            if (currentPage >= 1){
                s = s + "首页 ";
                if (currentPage > 1){
                    s = s + "上一页 ";
                }
            }
            int beginPage = currentPage - 3 < 1 ? 1 : currentPage - 3;
            if (beginPage <= pages){
                s = s + "第　";
                int i = beginPage;
                for (int j = 0; (i <= pages) && (j < 6); j++){
                    if (i == currentPage)
                        s = s + "" + i + " ";
                    else
                        s = s + "" + i + " ";
                    i++;
                }

                s = s + "页　";
            }
            if (currentPage <= pages){
                if (currentPage < pages){
                    s = s + "下一页 ";
                }
                s = s + "末页 ";
            }
        }

        return s;
    }

    public static String showPageAjaxHtml(String url, String params, int currentPage, int pages){
        String s = "";
        if (pages > 0){
            String address = url + "?1=1" + params;
            if (currentPage >= 1){
                s = s + "首页 ";
                s = s + "上一页 ";
            }

            int beginPage = currentPage - 3 < 1 ? 1 : currentPage - 3;
            if (beginPage <= pages){
                s = s + "第　";
                int i = beginPage;
                for (int j = 0; (i <= pages) && (j < 6); j++){
                    if (i == currentPage)
                        s = s + "" +
                            i +
                            " ";
                    else
                        s = s + "" + i + " ";
                    i++;
                }

                s = s + "页　";
            }
            if (currentPage <= pages){
                s = s + "下一页 ";
                s = s + "末页 ";
            }
        }

        return s;
    }

    public static void saveWebPaths(Map map, SysConfig config, HttpServletRequest request){
        String contextPath = request.getContextPath().equals("/") ? "" : request.getContextPath();
        String webPath = CommUtil.getURL(request, config);
        String port = ":" + CommUtil.null2Int(Integer.valueOf(request.getServerPort()));
        if ((config.isSecond_domain_open()) && (!CommUtil.generic_domain(request).equals("localhost"))){
            webPath = "http://www." + CommUtil.generic_domain(request) + port + contextPath;
        }
        if(config.getSite_url() != null && !"".equalsIgnoreCase(config.getSite_url())){
            webPath = config.getSite_url() + contextPath;
        }
        map.put("domainPath", CommUtil.generic_domain(request));
        map.put("webPath", webPath);
        if ((config.getImageWebServer() != null) && (!config.getImageWebServer().equals(""))){
            map.put("imageWebServer", config.getImageWebServer());
        }else{
            map.put("imageWebServer", webPath);
        }
        map.put("goodsImagePath", config.getGoodsImage().getPath());
        map.put("goodsImageName", config.getGoodsImage().getName());
        map.put("IsSecondDomainOpen", config.isSecond_domain_open());
    }

    public static void saveLucene2Map(String type, LuceneResult pList, Map map){
        if (pList != null){
            map.put("totalPage", Integer.valueOf(pList.getPages()));
            map.put("pageSize", Integer.valueOf(pList.getPageSize()));
            map.put("rows", Integer.valueOf(pList.getRows()));
            map.put("currentPage", new Integer(pList.getCurrentPage()));
            map.put("ajaxLoadHtml", showLoadGoodsAjaxHtml(pList.getGoods_list(), map));
        }
    }

    public static void saveLucene2ModelAndView(String type, LuceneResult pList, ModelAndView mv){
        if (pList != null){
            if (type.equals("goods")){
                mv.addObject("objs", pList.getGoods_list());
            }
            if (type.equals("store")){
                mv.addObject("objs", pList.getStore_list());
            }
            mv.addObject("totalPage", Integer.valueOf(pList.getPages()));
            mv.addObject("pageSize", Integer.valueOf(pList.getPageSize()));
            mv.addObject("rows", Integer.valueOf(pList.getRows()));
            mv.addObject("currentPage", new Integer(pList.getCurrentPage()));
            mv.addObject("gotoPageFormHTML", showPageFormHtml(pList.getCurrentPage(), pList.getPages()));
        }
    }

    public static void saveIPageList2Map(String url, String staticURL, String params, IPageList pList, Map map){
        if (pList != null){
            map.put("totalPage", new Integer(pList.getPages()));
            map.put("pageSize", Integer.valueOf(pList.getPageSize()));
            map.put("rows", new Integer(pList.getRowCount()));
            map.put("currentPage", new Integer(pList.getCurrentPage()));
            if("brand_goods".equalsIgnoreCase(String.valueOf(map.get("show")))){
                map.put("ajaxLoadHtml", showBrandGoodsAjaxHtml(pList.getResult(), map));
            }else if("orders".equalsIgnoreCase(String.valueOf(map.get("show")))){
                map.put("ajaxLoadHtml", showOrdersAjaxHtml(pList.getResult(), map));
            }
        }
    }

    public static void saveIPageList2ModelAndView(String url, String staticURL, String params, IPageList pList, ModelAndView mv){
        if (pList != null){
            mv.addObject("objs", pList.getResult());
            mv.addObject("totalPage", new Integer(pList.getPages()));
            mv.addObject("pageSize", Integer.valueOf(pList.getPageSize()));
            mv.addObject("rows", new Integer(pList.getRowCount()));
            mv.addObject("currentPage", new Integer(pList.getCurrentPage()));
            mv.addObject("gotoPageHTML", showPageHtml(url, params, pList.getCurrentPage(), pList.getPages()));
            mv.addObject("gotoPageFormHTML", showPageFormHtml(pList.getCurrentPage(), pList.getPages()));
            mv.addObject("gotoPageStaticHTML", showPageStaticHtml(staticURL, pList.getCurrentPage(), pList.getPages()));
            mv.addObject("gotoPageAjaxHTML", showPageAjaxHtml(url, params, pList.getCurrentPage(), pList.getPages()));
        }
    }

    public static char randomChar(){
        char[] chars = { 'a', 'A', 'b', 'B', 'c', 'C', 'd', 'D',
                         'e', 'E', 'f', 'F', 'g', 'G', 'h', 'H', 'i', 'I', 'j', 'J',
                         'k', 'K', 'l', 'L', 'm', 'M', 'n', 'N', 'o', 'O', 'p', 'P',
                         'q', 'Q', 'r', 'R', 's', 'S', 't', 'T', 'u', 'U', 'v', 'V',
                         'w', 'W', 'x', 'X', 'y', 'Y', 'z', 'Z'
                       };
        int index = (int)(Math.random() * 52.0D) - 1;
        if (index < 0){
            index = 0;
        }

        return chars[index];
    }

    public static String[] splitByChar(String s, String c){
        String[] list = s.split(c);

        return list;
    }

    public static Object requestByParam(HttpServletRequest request, String param){
        if (!request.getParameter(param).equals("")){
            return request.getParameter(param);
        }

        return null;
    }

    public static String substring(String s, int maxLength){
        if (!StringUtils.hasLength(s))
            return s;
        if (s.length() <= maxLength){
            return s;
        }

        return s.substring(0, maxLength) + "...";
    }

    public static String substringfrom(String s, String from){
        if (s.indexOf(from) < 0)
            return "";

        return s.substring(s.indexOf(from) + from.length());
    }

    public static int null2Int(Object s){
        int v = 0;
        if (s != null)
            try {
                v = Integer.parseInt(s.toString());
            } catch (Exception localException){
            }

        return v;
    }

    public static float null2Float(Object s){
        float v = 0.0F;
        if (s != null)
            try {
                v = Float.parseFloat(s.toString());
            } catch (Exception localException){
            }

        return v;
    }

    public static double null2Double(Object s){
        double v = 0.0D;
        if (s != null)
            try {
                v = Double.parseDouble(null2String(s));
            } catch (Exception localException){
            }

        return v;
    }

    public static boolean null2Boolean(Object s){
        boolean v = false;
        if (s != null)
            try {
                v = Boolean.parseBoolean(s.toString());
            } catch (Exception localException){
            }

        return v;
    }

    public static String null2String(Object s){
        return s == null ? "" : s.toString().trim();
    }

    public static Long null2Long(Object s){
        Long v = Long.valueOf(-1L);
        if (s != null)
            try {
                v = Long.valueOf(Long.parseLong(s.toString()));
            } catch (Exception localException){
            }

        return v;
    }

    public static String getTimeInfo(long time){
        int hour = (int)time / 3600000;
        long balance = time - hour * 1000 * 60 * 60;
        int minute = (int)balance / 60000;
        balance -= minute * 1000 * 60;
        int seconds = (int)balance / 1000;
        String ret = "";
        if (hour > 0)
            ret = ret + hour + "小时";
        if (minute > 0)
            ret = ret + minute + "分";
       else if ((minute <= 0) && (seconds > 0))
            ret = ret + "零";
        if (seconds > 0)
            ret = ret + seconds + "秒";

        return ret;
    }

    public static String getIpAddr(HttpServletRequest request){
        String ip = request.getHeader("x-forwarded-for");
        if ((ip == null) || (ip.length() == 0) || ("unknown".equalsIgnoreCase(ip))){
            ip = request.getHeader("Proxy-Client-IP");
        }
        if ((ip == null) || (ip.length() == 0) || ("unknown".equalsIgnoreCase(ip))){
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if ((ip == null) || (ip.length() == 0) || ("unknown".equalsIgnoreCase(ip))){
            ip = request.getRemoteAddr();
        }

        return ip;
    }

    public static int indexOf(String s, String sub){
        return s.trim().indexOf(sub.trim());
    }

    public static Map cal_time_space(Date begin, Date end){
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        long l = end.getTime() - begin.getTime();
        long day = l / 86400000L;
        long hour = l / 3600000L - day * 24L;
        long min = l / 60000L - day * 24L * 60L - hour * 60L;
        long second = l / 1000L - day * 24L * 60L * 60L - hour * 60L * 60L - min * 60L;
        Map map = new HashMap();
        map.put("day", Long.valueOf(day));
        map.put("hour", Long.valueOf(hour));
        map.put("min", Long.valueOf(min));
        map.put("second", Long.valueOf(second));

        return map;
    }

    public static final String randomString(int length){
        char[] numbersAndLetters = "0123456789abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
                                   .toCharArray();
        if (length < 1){
            return "";
        }
        Random randGen = new Random();
        char[] randBuffer = new char[length];
        for (int i = 0; i < randBuffer.length; i++){
            randBuffer[i] = numbersAndLetters[randGen.nextInt(71)];
        }

        return new String(randBuffer);
    }

    public static final String randomInt(int length){
        if (length < 1){
            return null;
        }
        Random randGen = new Random();
        char[] numbersAndLetters = "0123456789".toCharArray();

        char[] randBuffer = new char[length];
        for (int i = 0; i < randBuffer.length; i++){
            randBuffer[i] = numbersAndLetters[randGen.nextInt(10)];
        }

        return new String(randBuffer);
    }

    public static long getDateDistance(String time1, String time2){
        long quot = 0L;
        SimpleDateFormat ft = new SimpleDateFormat("yyyy-MM-dd");
        try {
            Date date1 = ft.parse(time1);
            Date date2 = ft.parse(time2);
            quot = date1.getTime() - date2.getTime();
            quot = quot / 1000L / 60L / 60L / 24L;
        } catch (ParseException e){
            e.printStackTrace();
        }

        return quot;
    }

    public static double div(Object a, Object b){
        double ret = 0.0D;
        if ((!null2String(a).equals("")) && (!null2String(b).equals(""))){
            BigDecimal e = new BigDecimal(null2String(a));
            BigDecimal f = new BigDecimal(null2String(b));
            if (null2Double(f) > 0.0D)
                ret = e.divide(f, 3, 1).doubleValue();
        }
        DecimalFormat df = new DecimalFormat("0.00");

        return Double.valueOf(df.format(ret)).doubleValue();
    }

    public static double subtract(Object a, Object b){
        double ret = 0.0D;
        BigDecimal e = new BigDecimal(null2Double(a));
        BigDecimal f = new BigDecimal(null2Double(b));
        ret = e.subtract(f).doubleValue();
        DecimalFormat df = new DecimalFormat("0.00");

        return Double.valueOf(df.format(ret)).doubleValue();
    }

    public static double add(Object a, Object b){
        double ret = 0.0D;
        BigDecimal e = new BigDecimal(null2Double(a));
        BigDecimal f = new BigDecimal(null2Double(b));
        ret = e.add(f).doubleValue();
        DecimalFormat df = new DecimalFormat("0.00");

        return Double.valueOf(df.format(ret)).doubleValue();
    }

    public static double mul(Object a, Object b){
        BigDecimal e = new BigDecimal(null2Double(a));
        BigDecimal f = new BigDecimal(null2Double(b));
        double ret = e.multiply(f).doubleValue();
        DecimalFormat df = new DecimalFormat("0.00");

        return Double.valueOf(df.format(ret)).doubleValue();
    }

    public static double formatMoney(Object money){
        DecimalFormat df = new DecimalFormat("0.00");

        return Double.valueOf(df.format(money)).doubleValue();
    }

    public static int M2byte(float m){
        float a = m * 1024.0F * 1024.0F;

        return (int)a;
    }

    public static boolean convertIntToBoolean(int intValue){
        return intValue != 0;
    }

    public static String getURL(HttpServletRequest request){
        String contextPath = request.getContextPath().equals("/") ? "" : request.getContextPath();

        String url = "http://" + request.getServerName();
        if (null2Int(Integer.valueOf(request.getServerPort())) != 80)
            url = url + ":" + null2Int(Integer.valueOf(request.getServerPort())) + contextPath;
       else{
            url = url + contextPath;
        }

        return url;
    }

    public static String getURL(HttpServletRequest request, SysConfig config){
        String contextPath = request.getContextPath().equals("/") ? "" : request.getContextPath();

        String url = "http://" + request.getServerName();
        if (null2Int(Integer.valueOf(request.getServerPort())) != 80)
            url = url + ":" + null2Int(Integer.valueOf(request.getServerPort())) + contextPath;
       else{
            url = url + contextPath;
        }
        if(config.getSite_url() != null && !"".equalsIgnoreCase(config.getSite_url())){
            if(!"/".equalsIgnoreCase(contextPath))
                url = config.getSite_url() + contextPath;
            else
                url = config.getSite_url();
        }

        return url;
    }

    public static String filterHTML(String content){
        Whitelist whiteList = new Whitelist();
        String s = Jsoup.clean(content, user_content_filter);

        return s;
    }

    public static int parseDate(String type, Date date){
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        if (type.equals("y")){
            return cal.get(1);
        }
        if (type.equals("M")){
            return cal.get(2) + 1;
        }
        if (type.equals("d")){
            return cal.get(5);
        }
        if (type.equals("H")){
            return cal.get(11);
        }
        if (type.equals("m")){
            return cal.get(12);
        }
        if (type.equals("s")){
            return cal.get(13);
        }

        return 0;
    }

    public static int[] readImgWH(String imgurl){
        boolean b = false;
        try {
            URL url = new URL(imgurl);

            BufferedInputStream bis = new BufferedInputStream(
                url.openStream());

            byte[] bytes = new byte[100];

            OutputStream bos = new FileOutputStream(
                new File("C:\\thetempimg.gif"));
            int len;
            while ((len = bis.read(bytes)) > 0){
                bos.write(bytes, 0, len);
            }
            bis.close();
            bos.flush();
            bos.close();

            b = true;
        } catch (Exception e){
            b = false;
        }
        int[] a = new int[2];
        if (b){
            File file = new File("C:\\thetempimg.gif");
            BufferedImage bi = null;
            boolean imgwrong = false;
            try {
                bi = ImageIO.read(file);
                try {
                    int i = bi.getType();
                    imgwrong = true;
                } catch (Exception e){
                    imgwrong = false;
                }
            } catch (IOException ex){
                ex.printStackTrace();
            }
            if (imgwrong){
                a[0] = bi.getWidth();
                a[1] = bi.getHeight();
            }else{
                a = null;
            }

            file.delete();
        }else{
            a = null;
        }

        return a;
    }

    public static boolean del_acc(HttpServletRequest request, Accessory acc){
        boolean ret = true;
        boolean ret1 = true;
        if (acc != null){
            String path = request.getRealPath("/") + acc.getPath() +
                          File.separator + acc.getName();
            String small_path = request.getRealPath("/") + acc.getPath() +
                                File.separator + acc.getName() + "_small." + acc.getExt();
            ret = deleteFile(path);
            ret1 = deleteFile(small_path);
        }

        return (ret) && (ret1);
    }

    public static boolean fileExist(String path){
        File file = new File(path);

        return file.exists();
    }

    public static int splitLength(String s, String c){
        int v = 0;
        if (!s.trim().equals("")){
            v = s.split(c).length;
        }

        return v;
    }

    public static double fileSize(File folder){
        totalFolder += 1;

        long foldersize = 0L;
        File[] filelist = folder.listFiles();
        for (int i = 0; i < filelist.length; i++){
            if (filelist[i].isDirectory()){
                foldersize = (long)(foldersize + fileSize(filelist[i]));
            }else{
                totalFile += 1;
                foldersize += filelist[i].length();
            }
        }

        return div(Long.valueOf(foldersize), Integer.valueOf(1024));
    }

    public static int fileCount(File file){
        if (file == null){
            return 0;
        }
        if (!file.isDirectory()){
            return 1;
        }
        int fileCount = 0;
        File[] files = file.listFiles();
        for (File f : files){
            if (f.isFile()){
                fileCount++;
            }else if (f.isDirectory()){
                fileCount++;
                fileCount += fileCount(file);
            }
        }

        return fileCount;
    }

    public static String get_all_url(HttpServletRequest request){
        String query_url = request.getRequestURI();
        if ((request.getQueryString() != null) &&
                (!request.getQueryString().equals(""))){
            query_url = query_url + "?" + request.getQueryString();
        }

        return query_url;
    }

    public static Color getColor(String color){
        if (color.charAt(0) == '#'){
            color = color.substring(1);
        }
        if (color.length() != 6)
            return null;
        try {
            int r = Integer.parseInt(color.substring(0, 2), 16);
            int g = Integer.parseInt(color.substring(2, 4), 16);
            int b = Integer.parseInt(color.substring(4), 16);
            return new Color(r, g, b);
        } catch (NumberFormatException nfe){
        }

        return null;
    }

    public static Set randomInt(int a, int length){
        Set list = new TreeSet();
        int size = length;
        if (length > a){
            size = a;
        }
        while (list.size() < size){
            Random random = new Random();
            int b = random.nextInt(a);
            list.add(Integer.valueOf(b));
        }

        return list;
    }

    public static Double formatDouble(Object obj, int len){
        Double ret = Double.valueOf(0.0D);
        String format = "0.0";
        for (int i = 1; i < len; i++){
            format = format + "0";
        }
        DecimalFormat df = new DecimalFormat(format);

        return Double.valueOf(df.format(obj));
    }

    public static boolean isChinese(char c){
        Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);

        return (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS) ||
               (ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS) ||
               (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A) ||
               (ub == Character.UnicodeBlock.GENERAL_PUNCTUATION) ||
               (ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION) ||
               (ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS);
    }

    public static boolean isMessyCode(String strName){
        Pattern p = Pattern.compile("\\s*|\t*|\r*|\n*");
        Matcher m = p.matcher(strName);
        String after = m.replaceAll("");
        String temp = after.replaceAll("\\p{P}", "");
        char[] ch = temp.trim().toCharArray();
        float chLength = ch.length;
        float count = 0.0F;
        for (int i = 0; i < ch.length; i++){
            char c = ch[i];
            if (Character.isLetterOrDigit(c))
                continue;
            if (!isChinese(c)){
                count += 1.0F;
                System.out.print(c);
            }
        }

        float result = count / chLength;

        return result > 0.4D;
    }

    public static String trimSpaces(String IP){
        while (IP.startsWith(" ")){
            IP = IP.substring(1, IP.length()).trim();
        }
        while (IP.endsWith(" ")){
            IP = IP.substring(0, IP.length() - 1).trim();
        }

        return IP;
    }

    public static boolean isIp(String IP){
        boolean b = false;
        IP = trimSpaces(IP);
        if (IP.matches("\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}")){
            String[] s = IP.split("\\.");
            if ((Integer.parseInt(s[0]) < 255) &&
                    (Integer.parseInt(s[1]) < 255) &&
                    (Integer.parseInt(s[2]) < 255) &&
                    (Integer.parseInt(s[3]) < 255))
                b = true;
        }

        return b;
    }

    public static String generic_domain(HttpServletRequest request){
        String system_domain = "localhost";
        String serverName = request.getServerName();
        if (isIp(serverName))
            system_domain = serverName;
       else{
            system_domain = serverName.substring(serverName.indexOf(".") + 1);
        }

        return system_domain;
    }
}