文件编码，图片格式，ip，日志访问等工具类
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/** * Copyright (c) 2005-2012 https://github.com/zhangkaitao * * Licensed under the Apache License, Version 2.0 (the "License"); */package com.sishuok.es.common.utils;import org.apache.commons.io.IOUtils;import java.io.*;/** * 来自网络 * * 判断文件编码 不保证100%正确性 但测试结果是一般的文件没问题 * <p/> * 只能判断常见的GBK，UTF-16LE，UTF-16BE,UTF-8，其分别对应window下的记事本可另存为的编码类型ANSI,Unicode,Unicode big endian,UTF-8 * <p/> * <p/> * <p>User: Zhang Kaitao * <p>Date: 13-7-5 下午12:09 * <p>Version: 1.0 */public class FileCharset { private static final String DEFAULT_CHARSET = "GBK"; public static String getCharset(String fileName) { return getCharset(new File(fileName)); } /** * 只能判断常见的GBK，UTF-16LE，UTF-16BE,UTF-8，其分别对应window下的记事本可另存为的编码类型ANSI,Unicode,Unicode big endian,UTF-8 * * @param file * @return */ public static String getCharset(File file) { InputStream is = null; try { is = new FileInputStream(file); return getCharset(new BufferedInputStream(is)); } catch (FileNotFoundException e) { return DEFAULT_CHARSET; } finally { IOUtils.closeQuietly(is); } } public static String getCharset(final BufferedInputStream is) { String charset = DEFAULT_CHARSET; byte[] first3Bytes = new byte[3]; try { boolean checked = false; is.mark(0); int read = is.read(first3Bytes, 0, 3); if (read == -1) return charset; if (first3Bytes[0] == (byte) 0xFF && first3Bytes[1] == (byte) 0xFE) { charset = "UTF-16LE"; checked = true; } else if (first3Bytes[0] == (byte) 0xFE && first3Bytes[1] == (byte) 0xFF) { charset = "UTF-16BE"; checked = true; } else if (first3Bytes[0] == (byte) 0xEF && first3Bytes[1] == (byte) 0xBB && first3Bytes[2] == (byte) 0xBF) { charset = "UTF-8"; checked = true; } is.reset(); if (!checked) { int loc = 0; while ((read = is.read()) != -1 && loc < 100) { loc++; if (read >= 0xF0) break; if (0x80 <= read && read <= 0xBF) // 单独出现BF以下的，也算是GBK break; if (0xC0 <= read && read <= 0xDF) { read = is.read(); if (0x80 <= read && read <= 0xBF) // 双字节 (0xC0 - 0xDF) // (0x80 // - 0xBF),也可能在GB编码内 continue; else break; } else if (0xE0 <= read && read <= 0xEF) {// 也有可能出错，但是几率较小 read = is.read(); if (0x80 <= read && read <= 0xBF) { read = is.read(); if (0x80 <= read && read <= 0xBF) { charset = "UTF-8"; break; } else break; } else break; } } } is.reset(); } catch (Exception e) { e.printStackTrace(); } return charset; }}/** * Copyright (c) 2005-2012 https://github.com/zhangkaitao * * Licensed under the Apache License, Version 2.0 (the "License"); */package com.sishuok.es.common.utils;import org.apache.commons.io.FilenameUtils;import org.apache.commons.lang3.ArrayUtils;/** * <p>User: Zhang Kaitao * <p>Date: 13-2-12 下午9:29 * <p>Version: 1.0 */public class ImagesUtils { private static final String[] IMAGES_SUFFIXES = { "bmp", "jpg", "jpeg", "gif", "png", "tiff" }; /** * 是否是图片附件 * * @param filename * @return */ public static boolean isImage(String filename) { if (filename == null || filename.trim().length() == 0) return false; return ArrayUtils.contains(IMAGES_SUFFIXES, FilenameUtils.getExtension(filename).toLowerCase()); }}package com.sishuok.es.common.utils;import javax.servlet.http.HttpServletRequest;public class IpUtils { private IpUtils() { } public static String getIpAddr(HttpServletRequest request) { if (request == null) { return "unknown"; } 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("X-Forwarded-For"); } 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.getHeader("X-Real-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } return ip; }}package com.sishuok.es.common.utils;import com.alibaba.fastjson.JSON;import com.google.common.collect.Lists;import com.google.common.collect.Maps;import org.apache.shiro.SecurityUtils;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import javax.servlet.http.HttpServletRequest;import java.io.PrintWriter;import java.io.StringWriter;import java.util.Enumeration;import java.util.List;import java.util.Map;public class LogUtils { public static final Logger ERROR_LOG = LoggerFactory.getLogger("es-error"); public static final Logger ACCESS_LOG = LoggerFactory.getLogger("es-access"); /** * 记录访问日志 * [username][jsessionid][ip][accept][UserAgent][url][params][Referer] * * @param request */ public static void logAccess(HttpServletRequest request) { String username = getUsername(); String jsessionId = request.getRequestedSessionId(); String ip = IpUtils.getIpAddr(request); String accept = request.getHeader("accept"); String userAgent = request.getHeader("User-Agent"); String url = request.getRequestURI(); String params = getParams(request); String headers = getHeaders(request); StringBuilder s = new StringBuilder(); s.append(getBlock(username)); s.append(getBlock(jsessionId)); s.append(getBlock(ip)); s.append(getBlock(accept)); s.append(getBlock(userAgent)); s.append(getBlock(url)); s.append(getBlock(params)); s.append(getBlock(headers)); s.append(getBlock(request.getHeader("Referer"))); getAccessLog().info(s.toString()); } /** * 记录异常错误 * 格式 [exception] * * @param message * @param e */ public static void logError(String message, Throwable e) { String username = getUsername(); StringBuilder s = new StringBuilder(); s.append(getBlock("exception")); s.append(getBlock(username)); s.append(getBlock(message)); ERROR_LOG.error(s.toString(), e); } /** * 记录页面错误 * 错误日志记录 [page/eception][username][statusCode][errorMessage][servletName][uri][exceptionName][ip][exception] * * @param request */ public static void logPageError(HttpServletRequest request) { String username = getUsername(); Integer statusCode = (Integer) request.getAttribute("javax.servlet.error.status_code"); String message = (String) request.getAttribute("javax.servlet.error.message"); String uri = (String) request.getAttribute("javax.servlet.error.request_uri"); Throwable t = (Throwable) request.getAttribute("javax.servlet.error.exception"); if (statusCode == null) { statusCode = 0; } StringBuilder s = new StringBuilder(); s.append(getBlock(t == null ? "page" : "exception")); s.append(getBlock(username)); s.append(getBlock(statusCode)); s.append(getBlock(message)); s.append(getBlock(IpUtils.getIpAddr(request))); s.append(getBlock(uri)); s.append(getBlock(request.getHeader("Referer"))); StringWriter sw = new StringWriter(); while (t != null) { t.printStackTrace(new PrintWriter(sw)); t = t.getCause(); } s.append(getBlock(sw.toString())); getErrorLog().error(s.toString()); } public static String getBlock(Object msg) { if (msg == null) { msg = ""; } return "[" + msg.toString() + "]"; } protected static String getParams(HttpServletRequest request) { Map<String, String[]> params = request.getParameterMap(); return JSON.toJSONString(params); } private static String getHeaders(HttpServletRequest request) { Map<String, List<String>> headers = Maps.newHashMap(); Enumeration<String> namesEnumeration = request.getHeaderNames(); while(namesEnumeration.hasMoreElements()) { String name = namesEnumeration.nextElement(); Enumeration<String> valueEnumeration = request.getHeaders(name); List<String> values = Lists.newArrayList(); while(valueEnumeration.hasMoreElements()) { values.add(valueEnumeration.nextElement()); } headers.put(name, values); } return JSON.toJSONString(headers); } protected static String getUsername() { return (String) SecurityUtils.getSubject().getPrincipal(); } public static Logger getAccessLog() { return ACCESS_LOG; } public static Logger getErrorLog() { return ERROR_LOG; }}/** * Copyright (c) 2005-2012 https://github.com/zhangkaitao * * Licensed under the Apache License, Version 2.0 (the "License"); */package com.sishuok.es.common.utils;import org.springframework.context.MessageSource;/** * <p>User: Zhang Kaitao * <p>Date: 13-2-9 下午8:49 * <p>Version: 1.0 */public class MessageUtils { private static MessageSource messageSource; /** * 根据消息键和参数 获取消息 * 委托给spring messageSource * * @param code 消息键 * @param args 参数 * @return */ public static String message(String code, Object... args) { if (messageSource == null) { messageSource = SpringUtils.getBean(MessageSource.class); } return messageSource.getMessage(code, args, null); }}/** * Copyright (c) 2005-2012 https://github.com/zhangkaitao * * Licensed under the Apache License, Version 2.0 (the "License"); */package com.sishuok.es.common.utils;/** * <p>User: Zhang Kaitao * <p>Date: 13-6-2 上午6:48 * <p>Version: 1.0 */public class PrettyMemoryUtils { private static final int UNIT = 1024; /** * @param byteSize 字节 * @return */ public static String prettyByteSize(long byteSize) { double size = 1.0 * byteSize; String type = "B"; if((int)Math.floor(size / UNIT) <= 0) { //不足1KB type = "B"; return format(size, type); } size = size / UNIT; if((int)Math.floor(size / UNIT) <= 0) { //不足1MB type = "KB"; return format(size, type); } size = size / UNIT; if((int)Math.floor(size / UNIT) <= 0) { //不足1GB type = "MB"; return format(size, type); } size = size / UNIT; if((int)Math.floor(size / UNIT) <= 0) { //不足1TB type = "GB"; return format(size, type); } size = size / UNIT; if((int)Math.floor(size / UNIT) <= 0) { //不足1PB type = "TB"; return format(size, type); } size = size / UNIT; if((int)Math.floor(size / UNIT) <= 0) { type = "PB"; return format(size, type); } return ">PB"; } private static String format(double size, String type) { int precision = 0; if(size * 1000 % 10 > 0) { precision = 3; } else if(size * 100 % 10 > 0) { precision = 2; } else if(size * 10 % 10 > 0) { precision = 1; } else { precision = 0; } String formatStr = "%." + precision + "f"; if("KB".equals(type)) { return String.format(formatStr, (size)) + "KB"; } else if("MB".equals(type)) { return String.format(formatStr, (size)) + "MB"; } else if("GB".equals(type)) { return String.format(formatStr, (size)) + "GB"; } else if("TB".equals(type)) { return String.format(formatStr, (size)) + "TB"; } else if("PB".equals(type)) { return String.format(formatStr, (size)) + "PB"; } return String.format(formatStr, (size)) + "B"; } public static void main(String[] args) { System.out.println(PrettyMemoryUtils.prettyByteSize(1023)); System.out.println(PrettyMemoryUtils.prettyByteSize(1L * UNIT)); System.out.println(PrettyMemoryUtils.prettyByteSize(1L * UNIT * UNIT)); System.out.println(PrettyMemoryUtils.prettyByteSize(1L * UNIT * 1023)); System.out.println(PrettyMemoryUtils.prettyByteSize(1L * 1023 * 1023 * 1023)); System.out.println(PrettyMemoryUtils.prettyByteSize(1L * UNIT * UNIT * UNIT)); System.out.println(PrettyMemoryUtils.prettyByteSize(1L * UNIT * UNIT * UNIT * UNIT)); System.out.println(PrettyMemoryUtils.prettyByteSize(1L * UNIT * UNIT * UNIT * UNIT * UNIT)); System.out.println(PrettyMemoryUtils.prettyByteSize(1L * UNIT * UNIT * UNIT * UNIT * UNIT * UNIT)); }}/** * Copyright (c) 2005-2012 https://github.com/zhangkaitao * * Licensed under the Apache License, Version 2.0 (the "License"); */package com.sishuok.es.common.utils;import org.apache.commons.lang3.StringUtils;import org.ocpsoft.prettytime.PrettyTime;import java.util.Date;/** * <p>User: Zhang Kaitao * <p>Date: 13-3-22 下午12:18 * <p>Version: 1.0 */public class PrettyTimeUtils { /** * 显示秒值为**年**月**天 **时**分**秒 如1年2个月3天 10小时 * * @return */ public static final String prettySeconds(int totalSeconds) { StringBuilder s = new StringBuilder(); int second = totalSeconds % 60; if (totalSeconds > 0) { s.append("秒"); s.append(StringUtils.reverse(String.valueOf(second))); } totalSeconds = totalSeconds / 60; int minute = totalSeconds % 60; if (totalSeconds > 0) { s.append("分"); s.append(StringUtils.reverse(String.valueOf(minute))); } totalSeconds = totalSeconds / 60; int hour = totalSeconds % 24; if (totalSeconds > 0) { s.append(StringUtils.reverse("小时")); s.append(StringUtils.reverse(String.valueOf(hour))); } totalSeconds = totalSeconds / 24; int day = totalSeconds % 31; if (totalSeconds > 0) { s.append("天"); s.append(StringUtils.reverse(String.valueOf(day))); } totalSeconds = totalSeconds / 31; int month = totalSeconds % 12; if (totalSeconds > 0) { s.append("月"); s.append(StringUtils.reverse(String.valueOf(month))); } totalSeconds = totalSeconds / 12; int year = totalSeconds; if (totalSeconds > 0) { s.append("年"); s.append(StringUtils.reverse(String.valueOf(year))); } return s.reverse().toString(); } /** * 美化时间 如显示为 1小时前 2分钟前 * * @return */ public static final String prettyTime(Date date) { PrettyTime p = new PrettyTime(); return p.format(date); } public static final String prettyTime(long millisecond) { PrettyTime p = new PrettyTime(); return p.format(new Date(millisecond)); } public static void main(String[] args) { System.out.println(PrettyTimeUtils.prettyTime(new Date())); System.out.println(PrettyTimeUtils.prettyTime(123)); System.out.println(PrettyTimeUtils.prettySeconds(10)); System.out.println(PrettyTimeUtils.prettySeconds(61)); System.out.println(PrettyTimeUtils.prettySeconds(3661)); System.out.println(PrettyTimeUtils.prettySeconds(36611)); System.out.println(PrettyTimeUtils.prettySeconds(366111)); System.out.println(PrettyTimeUtils.prettySeconds(3661111)); System.out.println(PrettyTimeUtils.prettySeconds(36611111)); }}/** * Copyright (c) 2005-2012 https://github.com/zhangkaitao * * Licensed under the Apache License, Version 2.0 (the "License"); */package com.sishuok.es.common.utils;import java.lang.reflect.ParameterizedType;import java.lang.reflect.Type;/** * <p>User: Zhang Kaitao * <p>Date: 13-2-23 下午1:25 * <p>Version: 1.0 */public class ReflectUtils { /** * 得到指定类型的指定位置的泛型实参 * * @param clazz * @param index * @param <T> * @return */ public static <T> Class<T> findParameterizedType(Class<?> clazz, int index) { Type parameterizedType = clazz.getGenericSuperclass(); //CGLUB subclass target object(泛型在父类上) if (!(parameterizedType instanceof ParameterizedType)) { parameterizedType = clazz.getSuperclass().getGenericSuperclass(); } if (!(parameterizedType instanceof ParameterizedType)) { return null; } Type[] actualTypeArguments = ((ParameterizedType) parameterizedType).getActualTypeArguments(); if (actualTypeArguments == null || actualTypeArguments.length == 0) { return null; } return (Class<T>) actualTypeArguments[0]; }}/** * Copyright (c) 2005-2012 https://github.com/zhangkaitao * * Licensed under the Apache License, Version 2.0 (the "License"); */package com.sishuok.es.common.utils;import org.springframework.beans.BeansException;import org.springframework.beans.factory.NoSuchBeanDefinitionException;import org.springframework.beans.factory.config.BeanFactoryPostProcessor;import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;public final class SpringUtils implements BeanFactoryPostProcessor { private static ConfigurableListableBeanFactory beanFactory; // Spring应用上下文环境 @Override public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException { SpringUtils.beanFactory = beanFactory; } /** * 获取对象 * * @param name * @return Object 一个以所给名字注册的bean的实例 * @throws org.springframework.beans.BeansException * */ @SuppressWarnings("unchecked") public static <T> T getBean(String name) throws BeansException { return (T) beanFactory.getBean(name); } /** * 获取类型为requiredType的对象 * * @param clz * @return * @throws org.springframework.beans.BeansException * */ public static <T> T getBean(Class<T> clz) throws BeansException { @SuppressWarnings("unchecked") T result = (T) beanFactory.getBean(clz); return result; } /** * 如果BeanFactory包含一个与所给名称匹配的bean定义，则返回true * * @param name * @return boolean */ public static boolean containsBean(String name) { return beanFactory.containsBean(name); } /** * 判断以给定名字注册的bean定义是一个singleton还是一个prototype。 如果与给定名字相应的bean定义没有被找到，将会抛出一个异常（NoSuchBeanDefinitionException） * * @param name * @return boolean * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException * */ public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException { return beanFactory.isSingleton(name); } /** * @param name * @return Class 注册对象的类型 * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException * */ public static Class<?> getType(String name) throws NoSuchBeanDefinitionException { return beanFactory.getType(name); } /** * 如果给定的bean名字在bean定义中有别名，则返回这些别名 * * @param name * @return * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException * */ public static String[] getAliases(String name) throws NoSuchBeanDefinitionException { return beanFactory.getAliases(name); }} 0 0
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