servlet乱码 解决方法 2种方法

public class ResponseDemo1 extends HttpServlet {public  void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {test1(resp);}

 

　　
　　//方法1:public void test1(HttpServletResponse resp) throws IOException, UnsupportedEncodingException {resp.setHeader("Content-type", "text/html;charset=utf-8");String data = "中国";OutputStream output = resp.getOutputStream();//程序以什么编码输出,那么一定要设置浏览为相对应的编码打开.output.write(data.getBytes("utf-8"));}//方法2://模拟meta标签,设置charset为utf-8,这个方法也行.    //用html技术中的meta标签模拟了一个http响应头,来控制浏览器的行为public void test2(HttpServletResponse response) throws Exception{String data  = "中国_第二个";OutputStream output= response.getOutputStream();output.write("<meta http-equiv='content-type' content='text/html;charset=UTF-8'>".getBytes());output.write(data.getBytes());}

 

public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doGet(req, resp); } }

 //********************************情况2:*************************************

public class ResponseDemo2 extends HttpServlet {private static final long serialVersionUID = 1L;public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {test1(response);}public void test1(HttpServletResponse response) throws IOException {// 方法１:// 要设置response,所使用的码表,以控制reponse以什么码表向浏览器写入数据// response.setCharacterEncoding("utf-8");// 同时设置浏览器以何种码表打开,指定浏览以什么　码表打开服务器发送的数据　// response.setHeader("content-type", "text/html;charset=utf-8");// 　方法２:response.setContentType("text/html;charset=utf-8");String data = "中国";PrintWriter outputStream = response.getWriter();outputStream.write(data);}public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {doGet(request, response);}}