htmlout.java

JAVA邮件系统

/* 
 *
 */

import java.io.*;
import java.text.*;
import java.sql.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

/**
 * 
 *
 * @author Chen Xin Wu
 */

public class HtmlOut {
	public HttpServletResponse m_response;
	public ServletOutputStream out ;
	public HtmlOuter  m_HttpOut,m_HttpErr;
	public int        m_nError = 0 ;
	public String     m_sModule;
	public String     m_sReturnURL;
	public String     m_sRedirect;
	

	//get out stream by this function;
	public HtmlOut(HttpServletResponse response){
		try{
	
			m_response = response;
			
			response.setContentType("text/html;charset=GB2312");

			out = response.getOutputStream();
			
			m_HttpOut = new HtmlOuter (out);

			m_HttpErr = new HtmlOuter (out);
			m_sRedirect=null;
			m_nError = 0;
			m_sReturnURL = "";
		}catch(Exception e){
			System.out.println(e.toString() ); 
		}
		
	}
	

	//Add string to http out 
	public void addString(String sAdd){
		if(m_HttpOut==null){
			//System.out.println("htmlout null!"); 
			return;
		}
		m_HttpOut.addString (sAdd);
	}
	
	public void addStringPlain(String sAdd){
		if(m_HttpOut==null)
			System.out.println("htmlout null!"); 
		m_HttpOut.addString(CommonMethods.makeHtmlString (sAdd));
	}
	
	public void setRedirect(String sDir){
		m_sRedirect = sDir;

	}
	public boolean addCookie(String sCName,String sCValue){
		Cookie cookie = new Cookie (sCName,sCValue);
		if( m_response!=null && cookie!=null ){
			m_response.addCookie (cookie);
			return true;
		}
		return false;
	}
	public boolean addCookie(Cookie c){
		if( m_response!=null && c!=null ){
			m_response.addCookie (c);
			return true;
		}
		return false;
	}
	//add and out error message;
	public void setErrorID(int ErrorID , String sModule , String sError ,
						   String sReturn){
		m_nError = ErrorID;
		m_sModule= sModule;
		m_HttpErr.addString (m_sModule+sError);
		m_sReturnURL = sReturn;
	}
	
	public void outHtml(){
		try{
			//first if redirect ...
			if( m_sRedirect !=null ){
				if( m_sRedirect.indexOf (".htm" )!=-1
					||m_sRedirect.length()==0 )//static web page 
				{
					if( m_sRedirect.length()==0 )
						m_response.sendRedirect( "/reindex.htm" );
					else
						m_response.sendRedirect( CommonMethods.GetWebRootDir()+m_sRedirect );
				}
				else // cgi path;
					m_response.sendRedirect(m_sRedirect);
			}
			
			if(m_nError==0)
				m_HttpOut.outString ();
			else{
				OutError();
			}
		}catch(Exception e){
		}
	}	
	
	public boolean writeHtml( String sFile )
	{
		try{
			CommonMethods.WriteToDisk ( m_HttpOut.m_Buffer .getData(),
										m_HttpOut.m_Buffer .getSize(),
										sFile);
		}catch(Exception e){
		}
		return true;
	}
	
	//out error message ;
	void OutError(){
		try{
			if( m_nError==USER_NEED_LOGIN )
				m_response.sendRedirect(CommonMethods.GetWebRootDir());
			else if( m_nError==SHOW_SIMPLE_MESSAGE_WITHCLOSE ){
				OutSimpleMessageByTemplate();
			}
			else{
				OutSimpleErrorByTemplate();
			}
		}catch(Exception e){
		}
	}
	
	//out error message by the template;
	void OutSimpleErrorByTemplate(){
		System.out.println("out error..."); 
		TemplateList tempList = CommonMethods.getErrorTemplate();
		if( tempList==null ){
			System.out.println("templaste null1"); 
			m_HttpErr.outString ();
		}
		SingleTemplate st = tempList.searchTemplate ("ROOT");
		if( st==null ){
			System.out.println("templaste null2"); 
			m_HttpErr.outString ();
		}
		int nKey = st.getKeyNum ();
		String sKey;
		
		for(int i=0;i<nKey;i++){
			m_HttpErr.outStr (st.getStringAt (i));
			sKey =st.getKeyAt (i);
			if( sKey .compareTo("cgi-path")==0 )
				m_HttpErr.outStr (CommonMethods.sHostNameCGI);
			if(sKey.compareTo ( "ErrorMessage")==0 ){
				m_HttpErr.outString ();
			}
			if( sKey.compareTo ("ReturnURL")==0 ){
				if( m_sReturnURL==null )
					m_sReturnURL="";
				if( m_sReturnURL.length ()==0||m_sReturnURL.indexOf (".htm" )!=-1 ){//static web page 
					if( m_sReturnURL.length ()==0 )
						m_HttpErr.outStr ("/reindex.htm");
					else
						m_HttpErr.outStr ( CommonMethods.GetWebRootDir()+m_sReturnURL );
				}
				else // cgi path;
					m_HttpErr.outStr ( m_sReturnURL);
			}
		}
		m_HttpErr.outStr (st.getEndString ());
	}
	
	void OutSimpleMessageByTemplate(){
		TemplateList tempList = CommonMethods.getMessageTemplate();
		if( tempList==null ){
			m_HttpErr.outString ();
		}
		SingleTemplate st = tempList.searchTemplate ("ROOT");
		if( st==null ){
			m_HttpErr.outString ();
		}
		int nKey = st.getKeyNum ();
		String sKey;
		for(int i=0;i<nKey;i++){
			m_HttpErr.outStr (st.getStringAt (i));
			sKey =st.getKeyAt (i);
			if( sKey .compareTo("cgi-path")==0 )
				m_HttpErr.outStr (CommonMethods.sHostNameCGI);
			if(sKey.compareTo ( "ErrorMessage")==0 ){
				m_HttpErr.outString ();
			}
		}
		m_HttpErr.outStr (st.getEndString ());
	}
	//error ID
	static public int USER_NEED_LOGIN             = 1;
	static public int TEMPLATE_NOTFIND            = 2;
	static public int SINGLE_TEMPLATE_NOTFIND     = 3;
	static public int CHANNEL_NOT_FIND            = 4;
	static public int DATABASE_CANT_CONNECT       = 5;
	static public int DATABASE_OPER_ERROR         = 6;
	
	static public int SHOW_SIMPLE_MESSAGE         = 7;
	static public int SHOW_SIMPLE_MESSAGE_WITHCLOSE = 8;
	//for cxw
	
	//for zjm
	static public int USER_HAS_BEEN_EXISTED       = 100;
	static public int USER_HAS_SUCCEEDED_TO_CHANGE_HIS_INFOMATION       = 101;
	static public int USER_ANSWER_IS_INCORRECT       = 102;
	static public int USER_HAS_NOT_BEEN_EXISTED      = 103;
	static public int USER_HAS_SUCCEEDED_TO_REGISTE  =104;
	
}