package pm_cn.itcast.request;

import java.io.IOException;
import java.net.URLDecoder;
import java.net.URLEncoder;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class RequestDemo4 extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		// 获得 提交过的 请求 的  参数 
		// 就希望 如果 能够 手动的 指定 request的 编码 那么就可以 解决乱码了 
		
		String name = request.getParameter("name");
		System.out.println(" name  : " + name );
		
		byte[] bb = name.getBytes("ISO8859-1");
		
		String value = new String(bb,"UTF-8");
		System.out.println(" 解决后的  value :" + value);
		
		
		System.out.println("===============");
		
		String encodedValue = URLEncoder.encode(name, "iso8859-1");
		String value2 = URLDecoder.decode(encodedValue, "UTF-8");
		
		System.out.println("value2 : " + value2);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doGet(request, response);
	}

}