stringutils.java

一个用struts tiles的在线影院web系统

package com.blue.web.common.util;


import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * The string utils class
 * @author Lucifer
 *
 */
public class StringUtils {

	public static String toString(String s) {
		return s == null ? "" : s;
	}
	
	public static String toString(int value) {
		return String.valueOf(value);
	}
	
	public static int getInt(String s) {
		return StringUtils.getInt(s, -1);
	}

    public static int getInt(Object obj) {
        return getInt(obj.toString(), -1);
    }

    public static int getInt(String s, int defaultValue) {
    	try {
    		return Integer.parseInt(s.trim());
    	} catch (Exception e) {
            return defaultValue;
    	}
    }

    public static boolean getBoolean(String s, boolean defaultValue) {
    	if (s == null)
    		return defaultValue;

   		if (s.equals("1") || s.equalsIgnoreCase("true") || s.equalsIgnoreCase("yes"))
   			return true;
   		else if (s.equals("0") || s.equalsIgnoreCase("false") || s.equalsIgnoreCase("no"))
   			return false;
   		else
   			return defaultValue;
    }
    
    public static String toString(boolean value) {
    	return value ? "1" : "0";
    }
    public static String toString(java.sql.Date date) {
    	Date dt = new Date(date.getTime());
    	return toString(dt);
    }
    public static String toString(Date date) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    	try {
    		return sdf.format(date);
    	} catch (Exception e) {
    		return null;
    	}
    }

    public static Date getDate(String s) {
    	SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    	try {
    		return sdf.parse(s);
    	} catch (Exception e) {
    		return null;
    	}
    }
}