package?exec2;

import?java.io.BufferedReader;
import?java.io.FileOutputStream;
import?java.io.InputStreamReader;
import?java.io.PrintWriter;


/**
?*?Class?Client?is?a?class?representing?a?simple?HTTP?client.
?*
?*?@author?wben?+?wjl
?*/

public?class?Client?{

	private?static?String?getPath?=?“C:\\Users\\14551\\Desktop\\internet\\getc\\“;//客戶端GET到的文件存放路徑

	/**
	?*?default?HTTP?port?is?port?80
	?*/
	private?static?int?port?=?80;

	/**
	?*?Allow?a?maximum?buffer?size?of?8192?bytes
	?*/
	private?static?int?buffer_size?=?8192;

	/**
	?*?The?end?of?line?character?sequence.
	?*/
	private?static?String?CRLF?=?“\r\n“;

	/**
	?*?Input?is?taken?from?the?keyboard
	?*/
	static?BufferedReader?keyboard?=?new?BufferedReader（new?InputStreamReader（System.in））;

	/**
	?*?Output?is?written?to?the?screen?（standard?out）
	?*/
	static?PrintWriter?screen?=?new?PrintWriter（System.out?true）;

	public?static?void?main（String[]?args）?throws?Exception?{
		try?{
			/**
			?*?Create?a?new?HttpClient?object.
			?*/
			HttpClient?myClient?=?new?HttpClient（）;

			/**
			?*?Parse?the?input?arguments.
			?*/

			?/*
			if?（args.length?!=?1）?{?
				System.err.println（“Usage:?Client?“）;
				System.exit（0）;?
			}
			??*/

			/**
			?*?Connect?to?the?input?server
			?*/
			args[0]?=?“127.0.0.1“;//連接地址
			myClient.connect（args[0]）;

			/**
			?*?Read?the?get?request?from?the?terminal.
			?*/
			screen.println（args[0]?+?“?is?listening?to?your?request:“）;
			String?request?=?keyboard.readLine（）;

			if?（request.startsWith（“GET“））?{
				/**
				?*?Ask?the?client?to?process?the?GET?request.
				?*/
				myClient.processGetRequest（request）;

			}?else?if?（request.startsWith（“PUT“））?{
				/**
				?*?Ask?the?client?to?process?the?PUT?request.
				?*/
				myClient.processPutRequest（request）;
			}?else?{
				/**
				?*?Do?not?process?other?request.
				?*/
				myClient.processPutRequest（request）;//同樣處理?通過服務器端處理錯誤報文后返回
				//?screen.println（“Bad?request!?\n“）;
				//?myClient.close（）;
				//?return;
			}

			/**
			?*?Get?the?headers?and?display?them.
			?*/
			screen.println（“Header:?\n“）;
			screen.print（myClient.getHeader（）?+?“\n“）;
			screen.flush（）;

			int?staus?=?0;
			String?str[]?=?myClient.getHeader（）.split（“[?\r\n]“）;
			staus?=?Integer.valueOf（str[1]）;//?獲取狀態信息
			if?（request.startsWith（“GET“）?&&?staus?==?200）?{
				/**
				?*?Ask?the?user?to?input?a?name?to?save?the?GET?resultant?web?page.
				?*/
				screen.println（）;
				screen.print（“Enter?the?name?of?the?file?to?save:?“）;
				screen.flush（）;
				String?filename?=?keyboard.readLine（）;
				FileOutputStream?outfile?=?new?FileOutputStream（getPath?+?filename）;

				/**
				?*?Save?the?response?to?the?specified?file.
				?*/
				String?response?=?myClient.getResponse（）;
				outfile.write（response.getBytes（“iso-8859-1“））;
				outfile.flush（）;
				outfile.close（）;
			}

			/**
			?*?Close?the?conn

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????3197??2019-12-11?14:45??exec2_http_wjl\Client.java
?????文件????????3959??2019-12-11?14:52??exec2_http_wjl\HttpClient.java
?????文件????????6302??2019-12-11?14:50??exec2_http_wjl\HttpHandler.java
?????文件????????1255??2019-12-11?14:39??exec2_http_wjl\HttpServer.java
?????目錄???????????0??2019-12-11?14:59??exec2_http_wjl\