Java字符流

package cn.ITHong.Response;

import java.io.IOException;
import java.io.PrintWriter;

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

public class ResponseDemo1 extends HttpServlet {

	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
			test4(response);
	}
	/**
	 * 字符流输出中文数据，正常显示，有两个处理，与test3()作用完全一样*/
	public void test5(HttpServletResponse response) throws IOException {
		int i =98;
		//字节流到客户端会出现字符
		//所以传数字，必须改变为字符流。
		response.getOutputStream().write((i+"").getBytes());
	}
	/**
	 * 字符流输出中文数据，正常显示，有两个处理，与test3()作用完全一样*/
	public void test4(HttpServletResponse response) throws IOException {
		String s = "同学们测试";
		response.setContentType("text/html;charset=UTF-8");
		 PrintWriter out = response.getWriter();
		 out.write(s);//UTF-8要求咯
	}
	/**
	 * 字符流输出中文数据，正常显示*/
	public void test3(HttpServletResponse response) throws IOException {
		String s = "同学们";
		response.setCharacterEncoding("UTF-8");
		response.setContentType("text/html;charset=UTF-8");
		 PrintWriter out = response.getWriter();
		 out.write(s);//UTF-8要求咯
	}
	/**
	 * 字符流输出中文数据，正常显示*/
	public void test2(HttpServletResponse response) throws IOException {
		String s = "**腰带摄像机";
		response.setCharacterEncoding("UTF-8");
		response.setHeader("Content-type", "text/html;charset=UTF-8");
		 PrintWriter out = response.getWriter();
		 out.write(s);//UTF-8要求咯
	}
	/**
	 * 字符流输出中文数据，乱码*/
	public void test1(HttpServletResponse response) throws IOException {
		String s = "**腰带摄像机";
		 PrintWriter out = response.getWriter();
		 out.write(s);//默认查的是ISO-8859-1码表（SUN的servlet规范要求）
	}

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

		
	}

}