jsp 实验13 servlet

2024-05-10 10:10:02
开发
36

一、实验目的

掌握怎样在JSP中使用javabean

二、实验项目内容（实验题目）

编写代码，掌握servlet的用法。【参考课本上机实验3 】

三、源代码以及执行结果截图：

源代码：

inputIntegers.jsp：

<%@ page contentType="text/html" %>

<%@ page pageEncoding = "utf-8" %>

<style>

#tom{

font-family:宋体;font-size:26;color:blue

}

</style>

<br>输入整数，用逗号或非数字字符分隔:<br>

</form>

</p></body></HTML>

web.xml：

<?xml version="1.0" encoding="utf-8"?>

<web-app>

<servlet-name>handleForward</servlet-name>

<servlet-class>moon.sun.HandleForward_Servlet</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>handleForward</servlet-name>

<url-pattern>/handleForward</url-pattern>

</servlet-mapping>

<servlet-name>personOne</servlet-name>

<servlet-class>moon.sun.PersonOne_Servlet</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>personOne</servlet-name>

<url-pattern>/personOne</url-pattern>

</servlet-mapping>

<servlet-name>personTwo</servlet-name>

<servlet-class>moon.sun.PersonTwo_Servlet</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>personTwo</servlet-name>

<url-pattern>/personTwo</url-pattern>

</servlet-mapping>

</web-app>

HandleForward_Servlet.Java

package moon.sun;

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;

public class HandleForward_Servlet extends HttpServlet{

public void init(ServletConfig config) throws ServletException{

super.init(config);

}

public void service(HttpServletRequest request,HttpServletResponse response)

throws ServletException,IOException{

RequestDispatcher dispatcher = null;

request.setCharacterEncoding("utf-8");

response.setContentType("text/html;charset=utf-8");

String mess = request.getParameter("submit");

String integers = request.getParameter("number");

if(integers == null ||integers.length()==0) {

response.sendRedirect("inputIntegers.jsp");

return;

}

if(mess.contains("personOne")) {

dispatcher = request.getRequestDispatcher("personOne");

dispatcher.forward(request,response);

}

else if(mess.contains("personTwo")){

dispatcher = request.getRequestDispatcher("personTwo");

dispatcher.forward(request,response);

}

PersonOne_Servlet

package moon.sun;

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;

import java.util.regex.Pattern;

import java.util.regex.Matcher;

public class PersonOne_Servlet extends HttpServlet{

public void init(ServletConfig config) throws ServletException{

super.init(config);

}

public void service(HttpServletRequest request,HttpServletResponse response)

throws ServletException,IOException{

request.setCharacterEncoding("utf-8");

response.setContentType("text/html;charset=utf-8");

PrintWriter out=response.getWriter();

String integers = request.getParameter("number");

String backMess = analysisIntegers(integers);

out.print("<html><body><h1>"+backMess+"</body></html>");

}

public String analysisIntegers(String input){

Pattern pattern;

Matcher matcher;

String regex="-?[0-9][0-9]*" ;

pattern = Pattern.compile(regex);

matcher = pattern.matcher(input);

StringBuffer evenNumbers = new StringBuffer("<br>偶数:");

StringBuffer oddNumbers = new StringBuffer("<br>奇数:");

while(matcher.find()) {

String str = matcher.group();

if(Integer.parseInt(str)%2==0){

evenNumbers.append(str+",");

}

else {

oddNumbers.append(str+",");

}

StringBuffer buffer = evenNumbers.append(oddNumbers);

return new String(buffer);

}

PersonTwo_Servlet

package moon.sun;

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;

import java.util.regex.Pattern;

import java.util.regex.Matcher;

public class PersonTwo_Servlet extends HttpServlet{

public void init(ServletConfig config) throws ServletException{

super.init(config);

}

public void service(HttpServletRequest request,HttpServletResponse response)

throws ServletException,IOException{

request.setCharacterEncoding("utf-8");

response.setContentType("text/html;charset=utf-8");

PrintWriter out=response.getWriter();

String integers = request.getParameter("number");

String backMess = analysisIntegers(integers);

out.print("<html><body><h1>"+backMess+"</body></html>");

}

public String analysisIntegers(String input){

Pattern pattern;

Matcher matcher;

String regex="-?[0-9][0-9]*" ;

pattern = Pattern.compile(regex);

matcher = pattern.matcher(input);

StringBuffer numbersZero = new StringBuffer("3的倍数:<br>");

StringBuffer numbersOne = new StringBuffer("<br>除以3余1:<br>");

StringBuffer numbersTwo = new StringBuffer("<br>除以3余2:<br>");

while(matcher.find()) {

String str = matcher.group();

if(Integer.parseInt(str)%3==0){

numbersZero.append(str+",");

}

else if(Integer.parseInt(str)%3==1){

numbersOne.append(str+",");

}

else if(Integer.parseInt(str)%3==2){

numbersTwo.append(str+",");

}

StringBuffer buffer = numbersZero.append(numbersOne.append(numbersTwo));

return new String(buffer);

}

运行结果图：

原文地址:https://blog.csdn.net/m0_64798714/article/details/138604844 本文来自互联网用户投稿，该文观点仅代表作者本人，不代表本站立场。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如若转载，请注明出处：https://www.suanlizi.com/kf/1788753331603247104.html 如若内容造成侵权/违法违规/事实不符，请联系《酸梨子》网邮箱：1419361763@qq.com进行投诉反馈，一经查实，立即删除！

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