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ResponseTest.java
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ResponseTest.java
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package com.hx;
import java.io.IOException;
import java.io.OutputStream;
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 ResponseTest extends HttpServlet {
private static final long serialVersionUID = 1L;
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
response.setCharacterEncoding("utf-8");
//PrintWriter out = response.getWriter();
//out.println("hello world");
OutputStream os=response.getOutputStream();
os.write("hello world".getBytes());
testcache(response);
}
private void testcache(HttpServletResponse response) throws IOException {
response.setDateHeader("Expires", -1);
//缓存一个小时
//response.setDateHeader("Expires", System.currentTimeMillis()+3600*1000*24);
response.setHeader("Cache-Control","no-cache");
response.setHeader("Pragma","no-cache");
//定时刷新
//response.setHeader("Refresh", "5;url=/servletProject2/ResponseTest");
//状态码
//response.setStatus(302);
//response.setHeader("Location", "/servletPro/Servlet2");
//response.sendRedirect("/servletPro/Servlet2");
PrintWriter out = response.getWriter();
out.println("hello world "+new java.util.Date().toString());
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doGet(request, response);
}
}