strutil.java

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package cn.js.fan.util;



import java.io.UnsupportedEncodingException;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
import java.util.*;
import java.text.*;
import javax.servlet.http.*;
import java.net.URLEncoder;
import cn.js.fan.web.Global;
import cn.js.fan.web.SkinUtil;
import java.io.StringWriter;
import java.io.PrintWriter;
import com.cloudwebsoft.framework.util.LogUtil;

public class StrUtil {
    public static int INT_HELPER = 0;

    public StrUtil() {
    }

    
    public static String UrlEncode(String str, String charset) {
        if (str == null)
            return "";

        String s = str;

        try {
            s = URLEncoder.encode(str, charset);
        } catch (Exception e) {

        }
        return s;
    }

    
    public static String UrlEncode(String str) {
        return UrlEncode(str, "utf-8");
    }

    
    public static String[] split(String str, String token) {
        str = StrUtil.getNullStr(str).trim();
        if (str.equals(""))
            return null;
        return str.split(token);
    }

    
    public static String getURL(HttpServletRequest request) {
        return request.getRequestURL() + "?" + request.getQueryString();
        
    }

    
    public static String getUrl(HttpServletRequest request) {
        String str = "";
        str = request.getRequestURL() + "?" +
              UrlEncode(request.getQueryString(), "utf-8");

        return str;
    }

    
    public static String getIp(HttpServletRequest request) {
        String ip = request.getHeader("HTTP_X_FORWARDED_FOR"); 
        if (ip == null) {
            ip = StrUtil.getNullStr(request.getRemoteAddr());
        }
        return getNullString(ip);
    }

    
    public static String getNullString(String str) {
        return (str == null) ? "" : str;
    }

    
    public static String getNullStr(String str) {
        return (str == null) ? "" : str;
    }

    
    public static String replace(String strSource, String strFrom, String strTo) {
        if (strSource.equals("") || strSource == null)
            return strSource;
        String strDest = "";
        int intFromLen = strFrom.length();
        int intPos;
        if (strSource == null || (strSource.trim()).equals(""))
            return strSource;
        while ((intPos = strSource.indexOf(strFrom)) != -1) {
            strDest = strDest + strSource.substring(0, intPos);
            strDest = strDest + strTo;
            strSource = strSource.substring(intPos + intFromLen);
        }
        strDest = strDest + strSource;

        return strDest;
    }

    
    public static String sqlstr(String str) {
        if (str == null || (str.trim()).equals("")) {
            str = "\'\'";
            return str;
        }
        str = "\'" + replace(str, "\'", "\'\'") + "\'";
        return str;
    }

    
    public static String UnicodeToGB(String strIn) {
        return UnicodeToUTF8(strIn);
    }

    
    public static int UTF8Len(String str) {
        int k = 0;
        for (int i = 0; i < str.length(); i++) {
            if (str.charAt(i) > 255)
                k += 2;
            else
                k += 1;
        }
        return k;
    }

    
    public static String Unicode2GB(String strIn) {
        String strOut = null;
        if (strIn == null || (strIn.trim()).equals(""))
            return strIn;
        try {
            byte[] b = strIn.getBytes("ISO8859_1");
            strOut = new String(b, "GB2312"); 
        } catch (Exception e) {}
        return strOut;
    }

    
    public static String UnicodeToUTF8(String strIn) {
        String strOut = null;
        if (strIn == null || (strIn.trim()).equals(""))
            return strIn;
        try {
            byte[] b = strIn.getBytes("ISO8859_1");
            
            strOut = new String(b, "utf-8"); 
        } catch (Exception e) {}
        return strOut;
    }

    
    public static String GBToUnicode(String strIn) {
        byte[] b;
        String strOut = null;
        if (strIn == null || (strIn.trim()).equals(""))
            return strIn;
        try {
            b = strIn.getBytes("GB2312");
            strOut = new String(b, "ISO8859_1");
        } catch (UnsupportedEncodingException e) {}
        return strOut;
    }

    
    public static String UTF8ToUnicode(String strIn) {
        byte[] b;
        String strOut = null;
        if (strIn == null || (strIn.trim()).equals(""))
            return strIn;
        try {
            b = strIn.getBytes("utf-8");
            strOut = new String(b, "ISO8859_1");
        } catch (UnsupportedEncodingException e) {}
        return strOut;
    }

    
    public static String p_center(String str) {
        return "<p align=center>" + str + "</p>";
    }

    
    public static String p_center(String str, String color) {
        return "<p align=center><font color='" + color + "'>" + str +
                "</font></p>";
    }

    
    public static String makeErrMsg(String msg) {
        String str = "<BR><BR><BR>";
        str += "<table width='70%' height='50' border='0' align='center' cellpadding='0' cellspacing='1' bgcolor='blue'>";
        str += "<tr>";
        str += "<td bgcolor='#FFFFFF' align='center'><b><font color=red>" + msg +
                "</font></b></td>";
        str += "</tr>";
        str += "</table>";
        return str;
    }

    
    public static String makeErrMsg(String msg, String textclr, String bgclr) {
        String str = "<BR><BR><BR>";
        str += "<table width='70%' height='50' border='0' align='center' cellpadding='0' cellspacing='1' bgcolor='" +
                bgclr + "'>";
        str += "<tr>";
        str += "<td bgcolor='#FFFFFF' align='center'><font color='" + textclr +
                "'><b>" + msg + "</b></font></td>";
        str += "</tr>";
        str += "</table>";
        return str;
    }

    
    public static String waitJump(String msg, int t, String url) {
        String str = "";
        String spanid = "id" + System.currentTimeMillis();
        str = "\n<ol><b><span id=" + spanid + "> 3 </span>";
        str += "秒钟后系统将自动返回... </b></ol>";
        str += "<ol>" + msg + "</ol>";
        str += "<script language=javascript>\n";
        str += "<!--\n";
        str += "function tickout(secs) {\n";
        str += spanid + ".innerText = secs;\n";
        str += "if (--secs > 0) {\n";
        str += "  setTimeout('tickout(' +secs + ')', 1000);\n";
        str += "}\n";
        str += "}\n";
        str += "tickout(" + t + ");\n";
        str += "-->\n";
        str += "</script>\n";
        str += "<meta http-equiv=refresh content=" + t + ";url=" + url + ">\n";
        return str;
    }

    
    public static String Alert_Redirect(String msg, String toUrl) {
        String str = "";
        str = "<script language=javascript>\n";
        str += "<!--\n";
        str += "alert(\"" + msg + "\")\n";
        if (!toUrl.equals(""))
            str += "location.href=\"" + toUrl + "\"\n";
        str += "-->\n";
        str += "</script>\n";
        return str;
    }

    
    public static String Alert_Back(String msg) {
        String str = "";
        str = "<script language=javascript>\n";
        str += "<!--\n";
        str += "alert(\"" + msg + "\")\n";
        str += "history.back()\n";
        str += "-->\n";
        str += "</script>\n";
        return str;
    }

    
    public static String Alert(String msg) {
        String str = "";
        str = "<script language=javascript>\n";
        str += "<!--\n";
        str += "alert(\"" + msg + "\")\n";
        str += "-->\n";
        str += "</script>\n";
        return str;
    }

    
    public static float toFloat(String str, float defaultValue) {
        float d = defaultValue;
        try {
            d = Float.parseFloat(str);
        } catch (Exception e) {
            LogUtil.getLog(StrUtil.class).error("toFloat" + e.getMessage());
        }
        return d;
    }

    
    public static float toFloat(String str) {
        return toFloat(str, 0.0f);
    }

    
    public static double toDouble(String str, double defaultValue) {
        double d = defaultValue;
        try {
            d = Double.parseDouble(str);
        } catch (Exception e) {
            LogUtil.getLog(StrUtil.class).error("toDouble" + e.getMessage());
        }
        return d;
    }

    
    public static double toDouble(String str) {
        return toDouble(str, 0.0);
    }

    
    public static int toInt(String str, int defaultValue) {
        int d = defaultValue;
        try {
            d = Integer.parseInt(str);
        } catch (Exception e) {
            
        }
        return d;
    }

    
    public static int toInt(String str) {
        return toInt(str, -1);
    }

    
    public static long toLong(String str, long defaultValue) {
        long d = defaultValue;
        try {
            d = Long.parseLong(str);
        } catch (Exception e) {
            
        }
        return d;
    }

    
    public static long toLong(String str) {
        return toLong(str, -1);
    }

    
    public static boolean isNumeric(String s) {
        if (s == null)
            return false;
        boolean flag = true;
        char[] numbers = s.toCharArray();
        if (numbers.length == 0)
            return false; 
        for (int i = 0; i < numbers.length; i++) {
            if (!Character.isDigit(numbers[i])) {
                flag = false;
                break;
            }
        }
        return flag;
    }

    public static boolean isDouble(String str) {