springMVC多图片上传示例

package com.common.util; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.lang.reflect.Method; import java.text.DecimalFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Properties; import java.util.Random; import java.util.UUID; import java.util.regex.Matcher; import java.util.regex.Pattern; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; //import jxl.Cell; //import jxl.Sheet; //import jxl.Workbook; //import jxl.format.Colour; //import jxl.write.Alignment; //import jxl.write.Border; //import jxl.write.BorderLineStyle; //import jxl.write.Label; //import jxl.write.VerticalAlignment; //import jxl.write.WritableCellFormat; //import jxl.write.WritableFont; //import jxl.write.WritableSheet; //import jxl.write.WritableWorkbook; //import org.apache.commons.io.FileUtils; import org.apache.ibatis.annotations.Param; /** * 公共工具类 * @author 李建 */ public class PublicUtil { /** * @param index 截取字符串下标 * @param str 字符串 * @param endStr 添加结尾字符串 例如"..." * @return */ public static String subStr(String str, int index, String endStr){ if(str == null || "".equals(str)){ return ""; } if(str.length()<=index){ return str; } return str.substring(0,index)+endStr; } /** * 去尾部字符 * @param param * @param endWithStr * @return */ public static String delEndString(String param,String endWithStr){ if("".equals(getStrValue(param, ""))){ return param; } if (param.endsWith(endWithStr)) { param = param.substring(0, param.length() - endWithStr.length()); } return param; } /** * 去头部字符 * @param param * @param endWithStr * @return */ public static String delStartString(String param,String startWithStr){ if("".equals(getStrValue(param, ""))){ return param; } if (param.startsWith(startWithStr)) { param = param.substring(startWithStr.length(), param.length()); } return param; } /** * 转string类型 * @param param * @param value * @return */ public static String getStrValue(Object param,String value){ if(param == null){ return value; } if("".equals(param.toString()) || "null".equals(param.toString())){ return value; } return param.toString().trim(); } /** * 转double类型 * @param param * @param value * @return */ public static Double getDoubleValue(Object param,Double value){ if(param == null){ return value; } if("".equals(param.toString()) || "null".equals(param.toString())){ return value; } return Double.parseDouble(param.toString()); } /** * 格式化带小数点的数字 * @param param * @param format * @return */ public static String decimalFormat(double param,String format){ DecimalFormat df = new DecimalFormat(format); return df.format(param); } /** * 转int类型 * @param param * @param value * @return */ public static int getIntValue(Object param,int value){ if(param == null){ return value; } if("".equals(param.toString()) || "null".equals(param.toString())){ return value; } if(param.toString().contains(".")){ return (int)Double.parseDouble(param.toString()); } return Integer.parseInt(param.toString()); } /** * 去空格 * @param str * @return */ public static String deleteIt(String str) { if(str == null || "".equals(str)){ return ""; } str = str.trim(); str = str.replaceAll(" ", ""); return str; } /** * 按照自定义格式字符串转日期 * @author 李建 * @param value * @param format * @return */ public static Date str2FormatDate(String value, String format){ if(value == null || value.equals("")){ return null; } SimpleDateFormat sdf = new SimpleDateFormat(format); try { return sdf.parse(value); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); return null; } } /** * 将类似于"0531,0532,0533"这样的以逗号等分隔符连接的字符串转换为字符数组 * @author 李建 * @param str * @param delimitor 如果为空或""，则默认为逗号 * @return */ public static String[] str2Array(String str, String delimitor){ if(null == str || str.equals("")) { return null; } if(null == delimitor || delimitor.equals("")) { delimitor = ","; } return str.split(delimitor); } /** * 按照自定义格式日期转字符串 * @param date * @param format * @param value * @return */ public static String date2formatStr(Date date,String format,String value){ if(date == null){ return value; } SimpleDateFormat sdf = new SimpleDateFormat(format); return sdf.format(date); } /** * 按照自定义格式日期转字符串,尾部可追加字符 * @param date * @param format * @param appendStr * @param value * @return */ public static String date2formatStr(Date date,String format,String appendStr,String value){ if(date == null){ return value; } SimpleDateFormat sdf = new SimpleDateFormat(format); String str = sdf.format(date) + appendStr; return str; } /** * 按照自定义格式日期转字符串 * @param date * @param format * @param value * @return */ public static Date str2formatDate(Object date,String format){ String value = getStrValue(date, ""); if("".equals(value)){ return null; } SimpleDateFormat sdf = new SimpleDateFormat(format); try { return sdf.parse(value); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); return null; } } public static Date DateFormat(Date date,String format){ if(date == null){ return null; } SimpleDateFormat sdf = new SimpleDateFormat(format); String str = sdf.format(date); try { return sdf.parse(str); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); return null; } } /** * 验证取值范围 * @param param * @param bigValue * @param smallValue * @return */ public static boolean checkNumberScope(Object param,Object bigValue,Object smallValue) { double value = getDoubleValue(param, 0.0); double big = getDoubleValue(bigValue, 0.0); double small = getDoubleValue(smallValue, 0.0); if(value <= big && value >= small){ return true; } return false; } /** * 获取某日期前，后若干天的日期 * @param format 日期格式 * @param date 某一日期 * @param index 前或者后的天数 * @return */ public static String getOtherDate(String format,Date date,int index){ if(date == null){ return null; } SimpleDateFormat sdf = new SimpleDateFormat(format); Calendar c=Calendar.getInstance(); c.setTime(date); c.add(Calendar.DATE,index); return sdf.format(c.getTime()); } /** * 获取某日期前，后若干天的日期 * @param format 日期格式 * @param date 某一日期 * @param index 前或者后的天数 * @return */ public static Date getOtherDate(Date date,int index){ if(date == null){ return null; } Calendar c=Calendar.getInstance(); c.setTime(date);