index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<h2>用户注册第一步</h2>
<form name="" action="UserServlet" method="post">
<table border=1 width=500>
<tr><td>用户ID:</td><td><input name="uid" type="text"/></td></tr>
<tr><td>用户名:</td><td><input name="uname" type="text"/></td></tr>
<tr><td colspan="2"><input type="submit" value="下一步"/></td></tr>
</table>
<input name="type" type="hidden" value="1"/>
</form>
</body>
</html>
second.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'second.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<h2>用户注册第二步</h2>
<font color="red"><%=request.getAttribute("note")==null?"":request.getAttribute("note") %></font>
<form name="" action="UserServlet?type=2" method="post" enctype="multipart/form-data">
<table border=1 width=500>
<tr><td>密码：</td><td><input name="password" type="password"/></td></tr>
<tr><td>确认密码：</td><td><input name="repassword" type="password"/></td></tr>
<tr><td>性别：</td><td><input name="sex" type="radio" checked="checked" value="男"/>男<input name="sex" type="radio" value="女"/>女</td></tr>
<tr><td>年龄：</td><td><input name="age" type="text"/></td></tr>
<tr><td>提示信息：</td><td><select name="remaind"><option>我妈妈的名字</option><option>我的出生地</option></select></td></tr>
<tr><td>提示答案：</td><td><input name="answer" type="text"/></td></tr>
<tr><td>联系电话：</td><td><input name="phone" type="text"/></td></tr>
<tr><td>邮箱：</td><td><input name="email" type="text"/></td></tr>
<tr><td>接受的信息：</td><td><input name="information" type="checkbox" value="新闻"/>新闻<input name="information" type="checkbox" value="广告"/>广告<input name="information" type="checkbox" value="招聘"/>招聘</td></tr>
<tr><td>头像：</td><td><input name="profile" type="file"/></td></tr>
<tr><td colspan="2"><input type="submit" value="完成"/></td></tr>
</table>
</form>
</body>
</html>
third.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="com.qrsx.javabean.Users"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'third.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<h2>注册信息确认 </h2>
<%Users u=(Users)session.getAttribute("users"); %>
<form action="UserServlet?type=3" method="post">
<table border=1 width=500>
<tr><td>用户ID:</td><td><%=u.getUid() %></td></tr>
<tr><td>用户名:</td><td><%=u.getUname()%></td></tr>
<tr><td>密码：</td><td><%=u.getPassword() %></td></tr>
<tr><td>性别：</td><td><%=u.getSex()%></td></tr>
<tr><td>年龄：</td><td><%=u.getAge()%></td></tr>
<tr><td>提示信息：</td><td><%=u.getRemaind()%></td></tr>
<tr><td>提示答案：</td><td><%=u.getAnswer()%></td></tr>
<tr><td>联系电话：</td><td><%=u.getPhone()%></td></tr>
<tr><td>邮箱：</td><td><%=u.getEmail()%></td></tr>
<tr><td>接受的信息：</td><td><%=u.getInformationstr()%></td></tr>
<tr><td>头像：</td><td><img alt="" src="images/<%=u.getProfile()%>" width=200 height=200></td></tr>
<tr><td colspan="2"><input type="submit" value="确认提交"/></td></tr>
</table>
</form>
</body>
</html>
error.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'error.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
error!<br>
</body>
</html>
success.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'error.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
success!<br>
</body>
</html>
lessonmvc\src\com\qrsx\javabean包
Users.java
package com.qrsx.javabean;
public class Users {
private int uid;
private String uname;
private String password;
private String repassword;
private String sex;
private int age;
private String remaind;
private String answer;
private String phone;
private String email;
private String[] information;
private String informationstr;
private String profile;
public int getUid() {
return uid;
}
public void setUid(int uid) {
this.uid = uid;
}
public String getUname() {
return uname;
}
public void setUname(String uname) {
this.uname = uname;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getRepassword() {
return repassword;
}
public void setRepassword(String repassword) {
this.repassword = repassword;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getRemaind() {
return remaind;
}
public void setRemaind(String remaind) {
this.remaind = remaind;
}
public String getAnswer() {
return answer;
}
public void setAnswer(String answer) {
this.answer = answer;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String[] getInformation() {
return information;
}
public void setInformation(String[] information) {
this.information = information;
}
public String getInformationstr() {
return informationstr;
}
public void setInformationstr(String informationstr) {
this.informationstr = informationstr;
}
public String getProfile() {
return profile;
}
public void setProfile(String profile) {
this.profile = profile;
}
}
lessonmvc\src\com\qrsx\servlet包
UserServlet.java
package com.qrsx.servlet;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Calendar;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.sql.PreparedStatement;
import com.qrsx.javabean.Users;
import com.qrsx.util.DBUtil;
import com.qrsx.util.ImgWriteUtil;
import com.qrsx.util.UploadUtil;
public class UserServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public UserServlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doPost(request, response);
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//对post请求设置编码
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html;charset=utf-8");
HttpSession session=request.getSession();
String type=request.getParameter("type");
if("1".equals(type)){
String uid=request.getParameter("uid");
String uname=request.getParameter("uname");
PrintWriter out=response.getWriter();
if(uid.equals("") || uname.equals("")){
out.print("<script language='javascript'>");
out.print("alert('uid或用户名不能为空！');");
out.print("window.location.href='index.jsp';");
out.print("</script>");
}else{
Users u=new Users();
u.setUid(Integer.parseInt(uid.toString()));
u.setUname(uname);
session.setAttribute("users", u);
response.sendRedirect("second.jsp");
}
}else if("2".equals(type)){
//获得除上传文件域以外的普通文本域的值
UploadUtil uploadUtil=new UploadUtil(request);
String password=uploadUtil.getParameter("password");
String repassword=uploadUtil.getParameter("repassword");
String sex=uploadUtil.getParameter("sex");
String age=uploadUtil.getParameter("age");
String remaind=uploadUtil.getParameter("remaind");
String answer=uploadUtil.getParameter("answer");
String phone=uploadUtil.getParameter("phone");
String email=uploadUtil.getParameter("email");
List<String> information=uploadUtil.getParameterValues("information");
//获得上传文件的原始名字
BufferedInputStream inputStream=uploadUtil.getInputStream("profile");
String fileName=uploadUtil.getFileName("profile");
System.out.print("原始文件名："+fileName);
Calendar calendar =Calendar.getInstance();
String name=String.valueOf(calendar.getTimeInMillis())+fileName.substring(fileName.lastIndexOf("."));
System.out.print("新文件名："+name);
String filepath=request.getRealPath("/images")+"/"+name;
System.out.print("上传文件的保存地址和新名称："+filepath);
//读取原文件的内容写入到新文件中，即：完成文件的内容复制
File file=new File(filepath);
OutputStream outStream=new FileOutputStream(file);
BufferedOutputStream outputStream =new BufferedOutputStream(outStream);
ImgWriteUtil imgUtil=new ImgWriteUtil();
imgUtil.writeImg(inputStream, outputStream);
Users u=new Users();
if(session.getAttribute("users")!=null)
u=(Users)session.getAttribute("users");
u.setPassword(password);
u.setSex(sex);
u.setAge(age.toString()==null?0:Integer.parseInt(age.toString()));
u.setAnswer(answer);
u.setEmail(email);
u.setPhone(phone);
u.setProfile(name);
u.setRemaind(remaind);
String informationstr="";
for(String str:information){
informationstr=informationstr+str+" ";
}
u.setInformationstr(informationstr);
session.setAttribute("users", u);
//结果页面的专向
response.sendRedirect("third.jsp");
}else if("3".equals(type)){
Users u=(Users)session.getAttribute("users");
Connection conn=DBUtil.getConnection();
String sql="insert into " +
"tb_users(uid,uname,password,sex,age,remaind,answer,phone,email,information,profile)" +
" values(?,?,?,?,?,?,?,?,?,?,?)";
try {
PreparedStatement pstmt=conn.prepareStatement(sql);
pstmt.setInt(1,u.getUid());
pstmt.setString(2, u.getUname());
pstmt.setString(3, u.getPassword());
pstmt.setString(4, u.getSex());
pstmt.setInt(5, u.getAge());
pstmt.setString(6, u.getRemaind());
pstmt.setString(7, u.getAnswer());
pstmt.setString(8, u.getPhone());
pstmt.setString(9, u.getEmail());
pstmt.setString(10, u.getInformationstr());
pstmt.setString(11, u.getProfile());
pstmt.execute();
} catch (SQLException e) {
e.printStackTrace();
response.sendRedirect("error.jsp");
}
response.sendRedirect("success.jsp");
}
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
lessonmvc\src\com\qrsx\util包
DBUtil.java
package com.qrsx.util;
import java.beans.PropertyVetoException;
import java.sql.Connection;
import java.sql.SQLException;
import com.mchange.v2.c3p0.ComboPooledDataSource;
public class DBUtil {
private static final String DRIVERCLASS="com.mysql.jdbc.Driver";
private static final String JDBCURL="jdbc:mysql://localhost:3306/test";
private static final String USERNAME="root";
private static final String USERPASS="";
private static Connection connection=null;
private static ComboPooledDataSource dataSource = new ComboPooledDataSource();
static{
try {
dataSource.setDriverClass(DRIVERCLASS);
} catch (PropertyVetoException e) {
e.printStackTrace();
}
dataSource.setJdbcUrl(JDBCURL);
dataSource.setUser(USERNAME);
dataSource.setPassword(USERPASS);
// the settings below are optional -- c3p0 can work with defaults
// 设置初始连接池的大小！
dataSource.setInitialPoolSize(2);
// 设置连接池的最小值！
dataSource.setMinPoolSize(1);
// 设置连接池的最大值！
dataSource.setMaxPoolSize(10);
// 设置连接池中的最大Statements数量！
dataSource.setMaxStatements(50);
// 设置连接池的最大空闲时间！
dataSource.setMaxIdleTime(60);
}
/**
* 得到一个数据库的链接
* @return
*/
public static Connection getConnection(){
try {
connection=dataSource.getConnection();
} catch (SQLException e) {
e.printStackTrace();
}
return connection;
}
/**
* 将数据库的连接归还连接池
*/
public static void closeConnection(){
if(connection!=null)
try {
connection.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
ImgWriteUtil.java
/**
* 写入图片
*/
package com.qrsx.util;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
public class ImgWriteUtil {
public void writeImg(BufferedInputStream bis, BufferedOutputStream bos) {// 写入图片
int len = 0;
try {
byte[] buffer = new byte[2048];
while ((len = bis.read(buffer)) > 0) {
bos.write(buffer, 0, len);
}
} catch (FileNotFoundException exception) {
exception.printStackTrace();
throw new RuntimeException("创建文件时出错！");
} catch (IOException exception) {
exception.printStackTrace();
throw new RuntimeException("读写文件时出错！");
} finally {
try {
if (bos != null) {
bos.close();
}
if (bis != null) {
bis.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
UploadUtil.java
package com.qrsx.util;
/**
* 工具类 ，FileUpload 完成上传文件。
* 需要commons-fileupload.jar 和 commons-io.jar 支持。
*/
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class UploadUtil {
private ServletFileUpload servletFileUpload;
private List<FileItem> fileItems;
@SuppressWarnings("unchecked")
public UploadUtil(HttpServletRequest request) {
FileItemFactory fileItemFactory = new DiskFileItemFactory();
servletFileUpload = new ServletFileUpload(fileItemFactory);
try {
fileItems = servletFileUpload.parseRequest(request);
} catch (FileUploadException e) {
e.printStackTrace();
}
}
/**
* 解析得到 fieldName 的值
* @param fieldName
* @return
*/
public String getParameter(String fieldName) {
return this.getParameter(fieldName, "utf-8");
}
/**
* 解析得到 fieldName 的值
* @param fieldName
* @param encoding
* @return
*/
public String getParameter(String fieldName, String encoding) {
String value = null;
if (fileItems != null) {
for (FileItem fileItem : fileItems) {
String name = fileItem.getFieldName();
if ((fileItem.isFormField())&&(name != null) && (fieldName.equals(name))) {
try {
value = fileItem.getString(encoding);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
}
}
return value;
}
/**
* 解析得到 fieldName 的值 (集合类型)
* @param fieldName
* @return
*/
public List<String> getParameterValues(String fieldName){
return this.getParameterValues(fieldName, "utf-8");
}
/**
* 解析得到 fieldName 的值 (集合类型)
* @param fieldName
* @param encoding
* @return
*/
public List<String>getParameterValues(String fieldName,String encoding){
List<String>list=new ArrayList<String>();
if(fileItems!=null){
for(FileItem fileItem:fileItems){
String name = fileItem.getFieldName();
if((fileItem.isFormField())&&(name!=null)&&fieldName.equals(name)){
try {
String value = fileItem.getString(encoding);
list.add(value);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
}
}
if((list!=null)&&(list.size()>0)){
return list;
}
return null;
}
/**
* 解析得到 上传文件的 输入流
* @param fieldName
* @return
*/
public BufferedInputStream getInputStream(String fieldName){
BufferedInputStream bufferedInputStream=null;
if(fileItems!=null){
for(FileItem fileItem:fileItems){
String name = fileItem.getFieldName();
if((!fileItem.isFormField())&&(name!=null)&&fieldName.equals(name)){
try {
InputStream inputStream=fileItem.getInputStream();
bufferedInputStream=new BufferedInputStream(inputStream);
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
return bufferedInputStream;
}
/**
* 解析得到上传文件的名称。
* @param fieldName
* @return
*/
public String getFileName(String fieldName){
String fileName=null;
if(fileItems!=null){
for(FileItem fileItem:fileItems){
String name = fileItem.getFieldName();
if((!fileItem.isFormField())&&(name!=null)&&fieldName.equals(name)){
fileName=fileItem.getName();
}
}
}
return fileName;
}
}