parameterutils.java

来自「java开发的办公系统 1.系统管理 (地区管理,部门管理,菜单管理,用户管理」· Java 代码 · 共 96 行

package com.vere.util;

import java.io.UnsupportedEncodingException;
import javax.servlet.http.HttpServletRequest;

public class ParameterUtils
{

    public ParameterUtils()
    {
    }

    public static void setCharacterEncoding(HttpServletRequest httpservletrequest)
        throws UnsupportedEncodingException
    {
        httpservletrequest.setCharacterEncoding("gb2312");
    }

    public static String getString(HttpServletRequest httpservletrequest, String s)
        throws UnsupportedEncodingException
    {
        return httpservletrequest.getParameter(s) != null ? httpservletrequest.getParameter(s).trim() : "";
    }

    public static String getString(String s)
        throws UnsupportedEncodingException
    {
        return s!= null ? s.trim() : "";
    }


    public static String[] getArray(HttpServletRequest httpservletrequest, String s)
        throws UnsupportedEncodingException
    {
        return httpservletrequest.getParameterValues(s);
    }
    
	public static String getStrings(HttpServletRequest httpservletrequest, String s)
			throws UnsupportedEncodingException
	{
		String[] str_array=httpservletrequest.getParameterValues(s);
		if(str_array==null) return "";
		String str="";
		for(int i=0;i<str_array.length-1;i++){
			str+=str_array[i]+",";
		}
		str+=str_array[str_array.length-1];
		return str;
	}
	
	public static String getStrings(String[] s)
				throws UnsupportedEncodingException
	{
		if(s==null) return "";
		String str="";
		for(int i=0;i<s.length-1;i++){
			str+=s[i]+",";
		}
		str+=s[s.length-1];
		return str;
	}

    public static byte getByte(HttpServletRequest httpservletrequest, String s)
    {
        if(httpservletrequest.getParameter(s) == null || httpservletrequest.getParameter(s).equals(""))
            return 0;
        else
            return Byte.parseByte(httpservletrequest.getParameter(s));
    }

    public static int getInt(HttpServletRequest httpservletrequest, String s)
    {
        if(httpservletrequest.getParameter(s) == null || httpservletrequest.getParameter(s).equals(""))
            return 0;
        else
            return Integer.parseInt(httpservletrequest.getParameter(s));
    }

    public static long getLong(HttpServletRequest httpservletrequest, String s)
    {
        if(httpservletrequest.getParameter(s) == null || httpservletrequest.getParameter(s).equals(""))
            return 0L;
        else
            return Long.parseLong(httpservletrequest.getParameter(s));
    }

    public static short getShort(HttpServletRequest httpservletrequest, String s)
    {
        if(httpservletrequest.getParameter(s) == null || httpservletrequest.getParameter(s).equals(""))
            return 0;
        else
            return Short.parseShort(httpservletrequest.getParameter(s));
    }
}