package?cn.itcast.filter;

import?java.io.IOException;
import?java.io.UnsupportedEncodingException;
import?java.util.Map;
import?java.util.Set;

import?javax.servlet.Filter;
import?javax.servlet.FilterChain;
import?javax.servlet.FilterConfig;
import?javax.servlet.ServletException;
import?javax.servlet.ServletRequest;
import?javax.servlet.ServletResponse;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletRequestWrapper;

public?class?EncodingFilter?implements?Filter?{

	@Override
	public?void?destroy（）?{
	}

	@Override
	public?void?doFilter（ServletRequest?request?ServletResponse?response
			FilterChain?chain）?throws?IOException?ServletException?{
		//?解決post
		request.setCharacterEncoding（“utf-8“）;
		//?解決get
		EncodingRequest?encodingRequest?=?new?EncodingRequest（
				（HttpServletRequest）?request）;
		chain.doFilter（encodingRequest?response）;

	}

	@Override
	public?void?init（FilterConfig?filterConfig）?throws?ServletException?{
	}

}

class?EncodingRequest?extends?HttpServletRequestWrapper?{

	private?HttpServletRequest?request;

	private?boolean?hasEncode?=?false;

	public?EncodingRequest（HttpServletRequest?request）?{
		super（request）;
		this.request?=?request;
	}

	//?@Override
	//?public?String?getParameter（String?name）?{
	//?String?value?=?request.getParameter（name）;
	//?String?method?=?request.getMethod（）;
	//?if?（method.equalsIgnoreCase（“post“））?{
	//?return?value;
	//?}
	//?if?（value?==?null）?{
	//?return?null;
	//?}
	//
	//?//?解決get
	//?try?{
	//?value?=?new?String（value.getBytes（“ISO-8859-1“）?“utf-8“）;
	//?}?catch?（UnsupportedEncodingException?e）?{
	//?e.printStackTrace（）;
	//?}
	//
	//?return?value;
	//?}

	@Override
	public?String?getParameter（String?name）?{
		String[]?values?=?getParameterValues（name）;
		if?（values?==?null）?{
			return?null;
		}
		return?values[0];
	}

	@Override
	public?String[]?getParameterValues（String?name）?{
		Map?parameterMap?=?getParameterMap（）;
		String[]?values?=?parameterMap.get（name）;
		return?values;
	}

	@Override
	public?Map?getParameterMap（）?{
		Map?parameterMap?=?request.getParameterMap（）;
		String?method?=?request.getMethod（）;
		if?（method.equalsIgnoreCase（“post“））?{
			return?parameterMap;
		}

		//?get提交方式?手動轉(zhuǎn)碼
		if?（!hasEncode）?{
			Set?keys?=?parameterMap.keySet（）;
			for?（String?key?:?keys）?{
				String[]?values?=?parameterMap.get（key）;
				if?（values?==?null）?{
					continue;
				}
				for?（int?i?=?0;?i?					String?value?=?values[i];
					//?解決get
					try?{
						value?=?new?String（value.getBytes（“ISO-8859-1“）
								“utf-8“）;
						//?values是一個(gè)地址
						values[i]?=?value;
					}?catch?（UnsupportedEncodingException?e）?{
						e.printStackTrace（）;
					}
				}
				//?parameterMap.put（key?values）;

				hasEncode?=?true;
			}
		}
		return?parameterMap;
	}
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-03-15?16:50??網(wǎng)上商城\
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\
?????文件?????????362??2012-03-14?10:31??網(wǎng)上商城\codes\day24\.classpath
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\.myeclipse\
?????文件?????????288??2012-03-14?10:32??網(wǎng)上商城\codes\day24\.mymetadata
?????文件????????1411??2012-03-14?10:40??網(wǎng)上商城\codes\day24\.project
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\.settings\
?????文件?????????500??2012-03-14?10:31??網(wǎng)上商城\codes\day24\.settings\.jsdtscope
?????文件??????????49??2012-03-14?10:31??網(wǎng)上商城\codes\day24\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2012-03-14?10:31??網(wǎng)上商城\codes\day24\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\src\
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\src\cn\
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\src\cn\itcast\
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\src\cn\itcast\filter\
?????文件????????3008??2012-03-14?11:04??網(wǎng)上商城\codes\day24\src\cn\itcast\filter\EncodingFilter.java
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\src\cn\itcast\servlet\
?????文件????????1006??2012-03-14?11:03??網(wǎng)上商城\codes\day24\src\cn\itcast\servlet\RequestServlet.java
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\WebRoot\
?????文件?????????890??2012-03-14?10:32??網(wǎng)上商城\codes\day24\WebRoot\index.jsp
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\WebRoot\meta-INF\
?????文件??????????36??2012-03-14?10:31??網(wǎng)上商城\codes\day24\WebRoot\meta-INF\MANIFEST.MF
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\WebRoot\WEB-INF\
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\WebRoot\WEB-INF\classes\
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\WebRoot\WEB-INF\classes\cn\
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\WebRoot\WEB-INF\classes\cn\itcast\
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\WebRoot\WEB-INF\classes\cn\itcast\filter\
?????文件????????1425??2012-03-14?11:04??網(wǎng)上商城\codes\day24\WebRoot\WEB-INF\classes\cn\itcast\filter\EncodingFilter.class
?????文件????????2468??2012-03-14?11:04??網(wǎng)上商城\codes\day24\WebRoot\WEB-INF\classes\cn\itcast\filter\EncodingRequest.class
?????目錄???????????0??2014-03-15?16:39??網(wǎng)上商城\codes\day24\WebRoot\WEB-INF\classes\cn\itcast\servlet\
?????文件????????1815??2012-03-14?11:03??網(wǎng)上商城\codes\day24\WebRoot\WEB-INF\classes\cn\itcast\servlet\RequestServlet.class
............此處省略508個(gè)文件信息