IDE下使用Servlet查询系统时间

package test;

import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Date;

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



public class DateServlet extends HttpServlet{
private String contentType;

public void service(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException{
contentType="text/html;charset=UTF-8"; response.setCharacterEncoding("UTF-8");
if(1==2)throw new ServletException("some error");
response.setContentType("text/html");
PrintWriter out=response.getWriter();
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss E");
String DateStr=sdf.format(new Date());
out.println("<span style='color:blue;font-size:40px;'>"+"now:"+DateStr+"</span><br/>");
SimpleDateFormat sdf1=new SimpleDateFormat("yyyy年MM月dd日  HH时mm分ss秒 E");
String DateStr1=sdf1.format(new Date());
out.println("<span style='color:red;font-size:40px;'>"+"now:"+DateStr1+"</span><br/>");
out.close();

}

}




web.xml配置
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
     xmlns="http://java.sun.com/xml/ns/j2ee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>test</servlet-name>
<servlet-class>test.DateServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>test</servlet-name>
<url-pattern>/Date</url-pattern>
</servlet-mapping>
</web-app>


访问路径

http://localhost:8080/DateServlet/Date