1 package cn.itcast.response;
2
3 import java.io.IOException;
4 import java.io.OutputStream;
5 import java.io.PrintWriter;
6 import java.io.UnsupportedEncodingException;
7
8 import javax.servlet.ServletException;
9 import javax.servlet.http.HttpServlet;
10 import javax.servlet.http.HttpServletRequest;
11 import javax.servlet.http.HttpServletResponse;
12
13 //在servlet中用outputStream输出数据的问题，以及输出中文的问题
14 public class ResponseDemo extends HttpServlet {
15
16 public void doGet(HttpServletRequest request, HttpServletResponse response)
17 throws ServletException, IOException {
18
19 test4(response);
20
21 }
22
23 private void test4(HttpServletResponse response) throws IOException,
24 UnsupportedEncodingException {
25
26 OutputStream out = response.getOutputStream();
27 out.write((1 + "").getBytes());
28 }
29
30 private void test3(HttpServletResponse response) throws IOException,
31 UnsupportedEncodingException {
32
33 // 注意，下面写错了浏览器提示下载
34 response.setHeader("content-type", "text/html,charset=UTF-8");
35
36 String data = "中国";
37
38 OutputStream out = response.getOutputStream();
39 out.write(data.getBytes("UTF-8"));
40 }
41
42 private void test2(HttpServletResponse response) throws IOException,
43 UnsupportedEncodingException {
44
45 // 用html技术中的meta标签模拟一个http响应头，来控制浏览器的行为
46 String data = "中国";
47
48 OutputStream out = response.getOutputStream();
49
50 out
51 .write("<meta http-equiv='content-type' content='text/html;charset='UTF-8'></meta>"
52 .getBytes());
53 out.write(data.getBytes("UTF-8"));
54 }
55
56 private void test1(HttpServletResponse response) throws IOException,
57 UnsupportedEncodingException {
58 response.setHeader("content-type", "text/html,charset=UTF-8");
59
60 String data = "中国";
61
62 OutputStream out = response.getOutputStream();
63 out.write(data.getBytes("UTF-8"));
64 }
65
66 public void doPost(HttpServletRequest request, HttpServletResponse response)
67 throws ServletException, IOException {
68
69 }
70
71 }
