log4j添加日志到数据库和文件中

package com.boco.util; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.io.UnsupportedEncodingException; import java.net.URLDecoder; import java.security.MessageDigest; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.StringTokenizer; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.jasypt.util.text.BasicTextEncryptor; public class Utility { public static Date analyseStringToDate(String value,String separator) throws Exception { Date date = null; if(value!=null&&separator!=null){ if(value.indexOf(separator)>-1){ if(separator.equals(".")){ separator = "\\"+separator; } String array[] = value.split(separator); String year = array[0].trim(); String month = array[1].trim(); String day = null; if(array.length>2){ day = array[2].trim(); } if( day == null ){ SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM"); date = sdf.parse(year+"-"+month); }else{ SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); date = sdf.parse(year+"-"+month+"-"+day); } } } //System.out.println(date.toString()); return date; } public static String null2String(String s) { return s == null||s.equals("null") ? "" : s; } /** * try to delete given file , try 10 times * @param f * @return true if file deleted success, nor false; */ public static boolean forceDelete(File f) { boolean result = false; int tryCount = 0; while(!result && tryCount++ <10) { //System.out.println("try to delete file "+ f.getName() +" cnt:"+tryCount); System.gc(); result = f.delete(); } return result; } public static String encode(String in) { try { return new String(in.getBytes("GBK"), "ISO8859_1"); } catch (Exception e) { return in; } } /** * 获取当前请求IP * @param request * @return */ 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; } /** * 获取当前路径 * * @param relPath 相对路径 */ public static String getRealPath(String relPath) { String path = Thread.currentThread().getContextClassLoader().getResource("").getPath(); String pathurl = path.substring(1, path.indexOf("WEB-INF")); try { pathurl = URLDecoder.decode(pathurl, "UTF-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } if(relPath != null && relPath.length() > 0) { String temp = new String(relPath); //处理前缀 if(temp.startsWith("/")) { temp = temp.substring(1); } //处理后缀 if(!temp.endsWith("/")) { temp = temp + "/"; } pathurl = pathurl + temp; } return pathurl; } /** * 获取当前路径 */ public static String getRealPath() { return getRealPath(""); } /** * 返回全路径文件名 */ public static String getRealFile(String fileName) { int pos = fileName.lastIndexOf('/'); if(pos < 0) { pos = fileName.lastIndexOf('\\'); } String path = fileName.substring(0, pos+1); String name = fileName.substring(pos+1); String fullname = getRealPath(path).concat(name); return fullname; } /** * 将当前日期格式化为字符串 * @param pattern 格式字符串 */ public static String parseTodayToString(String pattern) { return parseDateToString(pattern, new Date()); } /** * 将日期装换为字符串 * @param pattern 格式字符串 * @param date 日期 */ public static String parseDateToString(String pattern, Date date) { return new SimpleDateFormat(pattern).format(date); } /** * 将字符串装换为日期 * @param pattern 格式字符串 * @param date 日期 */ public static Date parseStringToDate(String pattern, String date) throws ParseException { return new SimpleDateFormat(pattern).parse(date); } /** * 分割字符串(大小写敏感) * @param str 待分割字符串 * @param sign 分割符 * @return 分割后的字符串数组 */ public static String[] splitString(String str, String sign) { int count = getStrCount(str, sign); int j = 0; String[] arr = new String[count]; for (int i = 0; i < count; i++) { arr[i] = ""; if (str.indexOf(sign) != -1) { j = str.indexOf(sign); arr[i] = str.substring(0, j); str = str.substring(j + 1); } else { arr[i] = str; } } return arr; } /** * 得到字符串中包含元素个数 * 如："word1 word2 word3",返回3 * * @param str 原字符串 * @param sign 分隔符 * @return 包含元素个数 */ public static int getStrCount(String str, String sign) { if (str == null) return 0; StringTokenizer s = new StringTokenizer(str, sign); return s.countTokens(); } /** * 将JSON字符串,通过Response对象输出至客户端 */ public static void writeJsonToResponse(HttpServletResponse response, String content){ response.setContentType("application/x-json; charset=UTF-8"); PrintWriter out = null; try { out = response.getWriter(); out.println(content); } catch (IOException ex1) { ex1.printStackTrace(); } finally { out.close(); } } /** * 将HTML字符串,通过Response对象输出至客户端 */ public static void writeHtmlToResponse(HttpServletResponse response, String content){ response.setContentType("text/html; charset=UTF-8"); PrintWriter out = null; try { out = response.getWriter(); out.println(content); } catch (IOException ex1) { ex1.printStackTrace(); } finally { out.close(); } } /** * telnet密码加密 * @param password * @return */ public static String encrypt(String password) { BasicTextEncryptor textEncryptor = new BasicTextEncryptor(); textEncryptor.setPassword("123"); return textEncryptor.encrypt(password); } /** * telnet密码解密 * @param password * @return */ public static String decrypt(String password) { BasicTextEncryptor textEncryptor = new BasicTextEncryptor(); textEncryptor.setPassword("123"); return textEncryptor.decrypt(password); } /** * 得到MD5加密字符串 */ public static String getMD5String(String message) { byte[] bytes = null; try { MessageDigest md = MessageDigest.getInstance("MD5"); bytes = md.digest(message.getBytes("utf-8")); } catch (Exception e) { e.printStackTrace(); } int n; StringBuffer buf = new StringBuffer(""); for (int i = 0; i < bytes.length; i++) { n = bytes[i]; if(n < 0) { n += 256; } if(n < 16) { buf.append("0"); } buf.append(Integer.toHexString(n)); } String str = buf.toString(); return str; } public static void main(String[] args) { getRealFile("aa/bb/cc/asdf.txt"); try { analyseStringToDate("2007.6.6","."); } catch (Exception e) { e.printStackTrace(); } } }