1、sevlet文薯亏件：
package com.fylsh
import java.io.FileNotFoundException
import java.io.FileOutputStream
import java.io.IOException
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 Servlet1 extends HttpServlet {
private static final long serialVersionUID = -1728620555703188993L
public Servlet1() {
}
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
this.doPost(req, resp)
}
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
req.setCharacterEncoding("utf-8")
resp.setCharacterEncoding("utf-8")
String num1=req.getParameter("神知number1")
String num2=req.getParameter("number2")
String num3=req.getParameter("number3")
String num4=req.getParameter("number4")
String num5=req.getParameter("number5")
req.setAttribute("maxPrime", getPrimeNumber(Integer.parseInt(num3)))
writeToFile(num1+" "+num2+" "+num3+" "+num4+" "+num5,req.getRealPath("")+"/numberFile.txt")
req.getRequestDispatcher("index.jsp").forward(req,resp)
}
public void writeToFile(String res,String path){
try {
PrintWriter pw=new PrintWriter(new FileOutputStream(path,true))
pw.println(res)
pw.close()
} catch (FileNotFoundException e) {
e.printStackTrace()
}
}
public int getPrimeNumber(int input){
if(input<=0)return -1
int MAXINT=Integer.MAX_VALUE
while(true){
input++
if(isPrime(input))
return input
if(input>MAXINT-1)
return -1
}
}
public boolean isPrime(int input){
for(int i=2i<input/2+1i++){
if(input%i==0)return false
}
return true
}
}
2、web.xml配置：
<?xml version="1.0" encoding="UTF-8"数瞎神?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>Servlet1</servlet-name>
<servlet-class>com.fylsh.Servlet1</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Servlet1</servlet-name>
<url-pattern>/servlet1</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
3、\web\index.jsp文件内容：
<%@ page language="java" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body style="font-size: 14px">
<h3>请在下面输入框中输入整数</h3>
<form action="servlet1" method="post">
整数1：<input type="text" name="number1"/><br/>
整数2：<input type="text" name="number2"/><br/>
整数3：<input type="text" name="number3"/><br/>
整数4：<input type="text" name="number4"/><br/>
整数5：<input type="text" name="number5"/>
<input type="submit" value="提交">
</form>
<%if(request.getAttribute("maxPrime")!=null){
%>
大于整数3的最小素数为：<%=request.getAttribute("maxPrime") %>
<%
} %>
</body>
</html>
if rv is not None and rsv is not None:# extract version/subversion
self._nmap_version_number = int(line[rv.start():rv.end()])
self._nmap_subversion_number = int(line[rsv.start()+1:rsv.end()])
break
}
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