演示录入图书信息的Servlet+jsp源代码（留着自己看看）

来源：互联网发布：java三层架构怎么搭建编辑：程序博客网时间：2024/06/06 11:48

演示录入图书信息的Servlet+jsp源代码：

//过滤器：

package com.zpc;

import java.io.IOException;

import javax.servlet.Filter;

import javax.servlet.FilterChain;

import javax.servlet.FilterConfig;

import javax.servlet.ServletException;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

public class CharactorFilter implementsFilter {

Stringencoding=null;

public CharactorFilter() {

}

publicvoid destroy() {

encoding=null;

}

// AddServlet 对象：

package com.zpc;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

importjavax.servlet.http.HttpServletRequest;

importjavax.servlet.http.HttpServletResponse;

public class AddServlet extends HttpServlet{

privatestatic final long serialVersionUID = 1L;

public AddServlet() {

super();

}

protectedvoid doGet(HttpServletRequest request, HttpServletResponse response) throwsServletException, IOException {

doPost(request,response);

}

protectedvoid doPost(HttpServletRequest request, HttpServletResponse response) throwsServletException, IOException {

PrintWriterout=response.getWriter();

Stringid=request.getParameter("id");

Stringname=request.getParameter("name");

Stringauthor=request.getParameter("author");

Stringprice=request.getParameter("price");

out.print("<h2>图书信息添加成功</h2><hr>");

out.print("图书编号："+id+"<br>");

out.print("图书名称："+name+"<br>");

out.print("作者："+author+"<br>");

out.print("图书价格："+price+"<br>");

out.flush();

out.close();

}

//前台表单：

<%@ page language="java"contentType="text/html; charset=UTF-8"

pageEncoding="UTF-8"%>

<!DOCTYPEhtml PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<metahttp-equiv="Content-Type"content="text/html; charset=UTF-8">

<title>Insert titlehere</title>

</head>

<body>

<formaction="AddServlet"method="post">

<tablealign="center"border="1"width="400">

<tr>

<tdclass="2"align="center"colspan="2">

<h2>添加图书信息</h2>

</td>

</tr>

<tr>

<tdalign="right"> 图书编号：</td>

<td>

<inputtype="text"name="id">

</td>

</tr>

<tr>

<tdalign="right"> 图书名称：</td>

<td>

<inputtype="text"name="name">

</td>

</tr>

<tr>

<tdalign="right"> 作者：</td>

<td>

<inputtype="text"name="author">

</td>

</tr>

<tr>

<tdalign="right"> 图书价格：</td>

<td>

<inputtype="text"name="price">

</td>

</tr>

<tr>

<tdclass="2"align="center"colspan="2">

<inputtype="submit"value="添加">

</td>

</tr>

</table>

</form>

</body>

</html>

publicvoid doFilter(ServletRequest request, ServletResponse response, FilterChainchain) throws IOException, ServletException {

if(encoding!=null){

request.setCharacterEncoding(encoding);

response.setContentType("text/html;charast="+encoding);

response.setCharacterEncoding(encoding);

}

chain.doFilter(request,response);

}

publicvoid init(FilterConfig fConfig) throws ServletException {

encoding=fConfig.getInitParameter("encoding");

}