commen.java

基本库存管理系统的框架 struts hibernate

package com.strong.ims.comutil;

/*
 * Created on 2005/3/12
 * 
 * TODO To change the template for this generated file go to Window -
 * Preferences - Java - Code Style - Code Templates
 */

import java.math.BigDecimal;
import java.text.DateFormat;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;

/**
 * 一些通用方法
 * @author jqg
 *
 */

public class Commen {

  /**
   *
   * 
   * @param serial
   * @param length
   * @return String
   */
  public String adjustNumber(String serial, int length) throws Exception {
    String res = "";
    try{
      for(int i = 0; i < (length - String.valueOf(serial).length()); i++){
        res += "0";
      }
      res += serial;
    }
    catch (Exception e){
      System.out.println("Commen:adjustNumber:error");
      throw e;
    }
    return res;
  }

  /**
   * 
   * @param str
   * @return String
   */
  public String adjustStrig(String str) throws Exception {
    try{
      if(str == null || str.equals("null")){
        str = "";
      }
    }
    catch (Exception e){
      System.out.println("Commen:adjustStrig:error");
      throw e;
    }
    return str;
  }

  /**
   * 
   * 
   * @param transDate
   * @return String
   */
  public String transChinese(String transDate) throws Exception {
    String[] d = transDate.split("/");
    int year = Integer.parseInt(d[0]);
    try{
      year = year + 1911;
      transDate = year + "/" + d[1] + "/" + d[2];
    }
    catch (Exception e){
      System.out.println("Commen:transChinese:error");
      throw e;
    }
    return transDate;
  }

  /**
   * 
   * 
   * @return String
   */
  public String getChineseDate() throws Exception {
    try{
      DecimalFormat df = new DecimalFormat("00");
      Calendar c = Calendar.getInstance();
      int nYear = c.get(Calendar.YEAR) - 1911;
      int nMonth = c.get(Calendar.MONTH);
      int nDay = c.get(Calendar.DAY_OF_MONTH);
      return nYear + "/" + df.format(nMonth + 1) + "/" + df.format(nDay);
    }
    catch (Exception e){
      System.out.println("Commen:getChineseDate:error");
      throw e;
    }
  }

  /**
   * 
   * 
   * @return String
   */
  public String getChineseDate2() throws Exception {
    try{
      DecimalFormat df2 = new DecimalFormat("00");
      DecimalFormat df3 = new DecimalFormat("000");
      Calendar c = Calendar.getInstance();
      int nYear = c.get(Calendar.YEAR) - 1911;
      int nMonth = c.get(Calendar.MONTH);
      int nDay = c.get(Calendar.DAY_OF_MONTH);
      return df3.format(nYear) + "/" + df2.format(nMonth + 1) + "/"
          + df2.format(nDay);
    }
    catch (Exception e){
      System.out.println("Commen:getChineseDate2:error");
      throw e;
    }
  }

  /**
   * 
   * 
   * @param date
   * @return String
   */
  public String getChineseDate(java.util.Date date) throws Exception {
    String res = "";
    try{
      if(date != null){
        DateFormat dateformat = DateFormat.getDateInstance(
            DateFormat.FULL, Locale.TAIWAN);
        dateformat = new SimpleDateFormat("/MM/dd");
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int nYear = cal.get(Calendar.YEAR) - 1911;
        res = nYear + dateformat.format(date);
      }
    }
    catch (Exception e){
      System.out.println("Commen:getChineseDate:error");
      throw e;
    }
    return res;
  }

  /**
   * 
   * 
   * @param date
   * @return String
   */
  public String getChineseDateTime(java.util.Date date) throws Exception {
    String res = "";
    try{
      if(date != null){
        DateFormat dateformat = DateFormat.getDateInstance(
            DateFormat.FULL, Locale.TAIWAN);
        dateformat = new SimpleDateFormat("/MM/dd HH:mm:ss");
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int nYear = cal.get(Calendar.YEAR) - 1911;
        res = nYear + dateformat.format(date);
      }
    }
    catch (Exception e){
      System.out.println("Commen:getChineseDateTime:error");
      throw e;
    }
    return res;
  }

  /**
   * 
   * 
   * @return String
   */
  public String getDate() throws Exception {
    try{
      DecimalFormat df = new DecimalFormat("00");
      Calendar c = Calendar.getInstance();
      int nYear = c.get(Calendar.YEAR);
      int nMonth = c.get(Calendar.MONTH);
      int nDay = c.get(Calendar.DAY_OF_MONTH);
      return nYear + "/" + df.format(nMonth + 1) + "/" + df.format(nDay);
    }
    catch (Exception e){
      System.out.println("Commen:getDate:error");
      throw e;
    }
  }

  /**
   * 
   * 
   * @return String
   */
  public String getDate(String pattern) throws Exception {
    DecimalFormat df = new DecimalFormat("00");
    Calendar c = Calendar.getInstance();
    int nYear = c.get(Calendar.YEAR);
    int nMonth = c.get(Calendar.MONTH);
    int nDay = c.get(Calendar.DAY_OF_MONTH);
    try{
      if(pattern.equals("MM/DD")){
        return df.format(nMonth + 1) + "/" + df.format(nDay);
      }
      else if(pattern.equals("-")){
        return nYear + "-" + df.format(nMonth + 1) + "-" + df.format(nDay);
      }
      else{
        return nYear + "/" + df.format(nMonth + 1) + "/" + df.format(nDay);
      }
    }
    catch (Exception e){
      System.out.println("Commen:getDate:error");
      throw e;
    }
  }

  /**
   * 
   * 
   * @return String
   */
  public String getTime() throws Exception {
    try{
      DecimalFormat df = new DecimalFormat("00");
      Calendar c = Calendar.getInstance();
      int nHour = c.get(Calendar.HOUR_OF_DAY);
      int nMin = c.get(Calendar.MINUTE);
      int nSec = c.get(Calendar.SECOND);
      return df.format(nHour) + ":" + df.format(nMin) + ":" + df.format(nSec);
    }
    catch (Exception e){
      System.out.println("Commen:getTime:error");
      throw e;
    }
  }

  /**
   * 
   * 
   * @param src
   * @param originalString
   * @param newString
   * @return String
   */
  public String replaceAll(String src, String originalString, String newString) throws Exception {
    try{
      if(!src.trim().equals("")){
        StringBuffer sb = new StringBuffer();
        int index = 0;

        do{
          index = src.indexOf(originalString);
          if(index == -1){
            sb.append(src);
          }
          else{
            sb.append(src.substring(0, index));
            sb.append(newString);
            src = src.substring(index + originalString.length());
          }
        }while (index != -1);
        return sb.toString();
      }
    }
    catch (Exception e){
      System.out.println("Commen:replaceAll:error");
      throw e;
    }
    return "";

  }

  /**
   * 
   * 
   * @param dateA
   * @param dateB
   * @return String
   */
  public String compareDate(String dateA, String dateB) throws Exception {
    String desc = "";
    String[] date1 = dateA.split("/");
    String[] date2 = dateB.split("/");
    Calendar a = Calendar.getInstance();
    Calendar b = Calendar.getInstance();
    try{
      if(date1.length == 3 && date2.length == 3){
        a.set(
            Integer.parseInt(date1[0]), Integer.parseInt(date1[1]) - 1,
            Integer.parseInt(date1[2]));
        b.set(
            Integer.parseInt(date2[0]), Integer.parseInt(date2[1]) - 1,
            Integer.parseInt(date2[2]));
        if(a.before(b)) desc = "before";
        if(a.after(b)) desc = "after";
        if(!a.before(b) && !a.after(b)) desc = "equal";
      }
    }
    catch (Exception e){
      System.out.println("Commen:compareDate:error");
      throw e;
    }
    return desc;
  }

  /**
   * 
   * 
   * @param val
   * @param scale
   * @return String
   */
  public double round(double val, int scale) throws Exception {
    // 濡傛灉鐐洪浂,鏈冨偝鍥炲師鏈