有关响应消息头及UTF-8格式内容的输出的练习

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博主才疏学浅,今天闲来无事练练UTF-8格式内容的输出.

代码实现:

import java.io.FileInputStream;import java.io.IOException;import java.io.PrintWriter;import java.util.Properties;import javax.servlet.ServletContext;import javax.servlet.ServletException;import javax.servlet.ServletOutputStream;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class Service extends HttpServlet {private static final long serialVersionUID = 1L;protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//服务器中默认编码为ISO-8859-1,不支持中文(tomcat规定)/*告诉服务器应用使用UTF-8解析文本*/response.setCharacterEncoding("UTF-8");        /*客户端编码设置*/PrintWriter out = response.getWriter();  //得到一个字符输出流// 法一out.write("<html><head> <meta charset='UTF-8'></head><body>测试一</body></html>");  //向客户端相应文本内容// 法二response.setHeader("content-type", "text/html;charset=UTF-8");out.write("测试二");  //向客户端相应文本内容/* ------------------------------------------------------------- *//*告诉服务器应用使用UTF-8解析文本,告诉客户端要使用什么编码*/response.setContentType("text/html; charset=UTF-8");  //等同于以上response.setCharacterEncoding("UTF-8")+...charset=UTF-8/*测试内容输出*/// 法一PrintWriter out = response.getWriter(); //得到一个字符输出流out.write("测试三");// 法二ServletOutputStream sos = response.getOutputStream();           sos.write("测试四".getBytes());    //字符串后加getBytes()将String编码为byte序列这种方式也不会乱码.}protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {doGet(request, response);}}

以上有关UTF-8格式内容的输出一共有四种方式,接下来我将给大家一一罗列:

方法一:

方法二:

方法三:

方法四:

相关git代码链接:https://github.com/striner/javaCode/blob/master/practiceAboutTheWebResponseHeader

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