本文實(shí)例為大家分享了java實(shí)現(xiàn)通過綁定郵箱找回密碼功能,供大家參考,具體內(nèi)容如下
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1.輸入用戶名及驗(yàn)證碼,驗(yàn)證用戶名是否存在

(1).生成驗(yàn)證碼工具類
package com.utils;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
/**
* @Title: GraphicsUtil.java
* @copyright
* @Package com.utils
* @Description: TODO(這里用一句話描述這個(gè)類的作用)
* @author Mr.chen
* @date 2016-11-2 下午03:31:30
*/
public class GraphicsUtil {
private Font mFont = new Font("Times New Roman", Font.PLAIN, 17);
Color getRandColor(int fc,int bc){
Random random = new Random();
if(fc>255) fc=255;
if(bc>255) bc=255;
int r=fc+random.nextInt(bc-fc);
int g=fc+random.nextInt(bc-fc);
int b=fc+random.nextInt(bc-fc);
return new Color(r,g,b);
}
public Map<String, Object> getGraphics(){
int width=100,height=18;
BufferedImage image=new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR);
Graphics g=image.getGraphics();
Random random = new Random();
g.setColor(getRandColor(200,250));
g.fillRect(1, 1, width-1, height-1);
g.setColor(new Color(102,102,102));
g.drawRect(0, 0, width-1, height-1);
g.setFont(mFont);
g.setColor(getRandColor(160,200));
//畫隨機(jī)線
for (int i=0;i<155;i++){
int x = random.nextInt(width - 1);
int y = random.nextInt(height - 1);
int xl = random.nextInt(6) + 1;
int yl = random.nextInt(12) + 1;
g.drawLine(x,y,x + xl,y + yl);
}
//從另一方向畫隨機(jī)線
for (int i = 0;i < 70;i++){
int x = random.nextInt(width - 1);
int y = random.nextInt(height - 1);
int xl = random.nextInt(12) + 1;
int yl = random.nextInt(6) + 1;
g.drawLine(x,y,x - xl,y - yl);
}
//生成隨機(jī)數(shù),并將隨機(jī)數(shù)字轉(zhuǎn)換為字母
String sRand="";
for (int i=0;i<6;i++){
int itmp = random.nextInt(26) + 65;
char ctmp = (char)itmp;
sRand += String.valueOf(ctmp);
g.setColor(new Color(20+random.nextInt(110),20+random.nextInt(110),20+random.nextInt(110)));
g.drawString(String.valueOf(ctmp),15*i+10,16);
}
g.dispose();
Map<String, Object> map=new HashMap<String, Object>();
map.put("rand", sRand);
map.put("image", image);
return map;
}
}
(2).生成驗(yàn)證碼action
/**
* @Description: 獲取驗(yàn)證碼
* @author Mr.chen
* @date 2016-11-2 下午03:45:28
*/
public void getCode(){
try {
HttpServletResponse response = ServletActionContext.getResponse();
HttpServletRequest request= ServletActionContext.getRequest();
response.setHeader("Pragma","No-cache");
response.setHeader("Cache-Control","no-cache");
response.setDateHeader("Expires", 0);
//表明生成的響應(yīng)是圖片
response.setContentType("image/jpeg");
Map<String, Object> map=new GraphicsUtil().getGraphics();
System.out.println(map.get("rand"));
request.getSession().setAttribute("rand", map.get("rand"));
ImageIO.write((RenderedImage) map.get("image"), "JPEG", response.getOutputStream());
} catch (IOException e) {
e.printStackTrace();
}
}
(3).驗(yàn)證用戶名是否存在
/**
* @Description: 檢查用戶名是否存在
* @author Mr.chen
* @date 2016-11-2 下午04:49:02
*/
public void checkUsernumber(){
try {
HttpServletResponse response = ServletActionContext.getResponse();
HttpServletRequest request= ServletActionContext.getRequest();
String usernumber = request.getParameter("usernumber");
Studentinfo stu= studentinfoService.getStudentinfoByUsernumber(usernumber);
response.setContentType("text/plain; charset=utf-8");
response.setCharacterEncoding("UTF-8");
if(stu==null){
response.getWriter().print("false");
}else{
if(!StringUtils.isBlank(stu.getEmail())){
response.getWriter().print("true");
}else{
response.getWriter().print("notEmail");
}
}
response.getWriter().flush();
response.getWriter().close();
} catch (IOException e) {
e.printStackTrace();
}
}2.用戶名驗(yàn)證通過后往綁定郵箱發(fā)送郵件

/**
* @Description: 發(fā)送郵件
* @author Mr.chen
* @date 2016-11-2 下午05:06:24
*/
@SuppressWarnings("static-access")
public String toFindPassword2(){
HttpServletRequest request= ServletActionContext.getRequest();
String usernumber = request.getParameter("usernumber");
Studentinfo stu= studentinfoService.getStudentinfoByUsernumber(usernumber);
try {
Properties prop = new Properties();
prop.setProperty("mail.transport.protocol", "smtp");
prop.setProperty("mail.smtp.host", "smtp.qq.com");
prop.setProperty("mail.smtp.auth", "true");
prop.put("mail.smtp.port","587");
prop.setProperty("mail.debug", "true");
//驗(yàn)證寫信者郵箱,此處使用第三方授權(quán)碼登陸,使用密碼不知道為什么登錄不上
Authenticator authenticator = new PopAuthenticator("123456789@qq.com", "**************");
//創(chuàng)建會話
Session session = Session.getInstance(prop,authenticator);
//填寫信封寫信
Message msg = new MimeMessage(session);
//設(shè)置發(fā)郵件的原地址
msg.setFrom(new InternetAddress("123456789@qq.com"));
//設(shè)置接收人
msg.setRecipient(RecipientType.TO, new InternetAddress(stu.getEmail()));
msg.setSubject("找回密碼!");
msg.setText(this.createLink(stu));
//驗(yàn)證用戶名密碼發(fā)送郵件
Transport transport = session.getTransport();
transport.send(msg);
request.setAttribute("stu", stu);
return SUCCESS;
}catch(Exception e){
e.printStackTrace();
}
return ERROR;
}/**
* @Description: 生成郵箱鏈接地址
* @author Mr.chen
* @date 2016-11-3 下午01:50:14
*/
public String createLink(Studentinfo stu){
//生成密鑰
String secretKey=UUID.randomUUID().toString();
//設(shè)置過期時(shí)間
Date outDate = new Date(System.currentTimeMillis() + 30 * 60 * 1000);// 30分鐘后過期
System.out.println(System.currentTimeMillis());
long date = outDate.getTime() / 1000 * 1000;// 忽略毫秒數(shù) MySQL 取出時(shí)間是忽略毫秒數(shù)的
//此處應(yīng)該更新Studentinfo表中的過期時(shí)間、密鑰信息
stu.setOutDate(date);
stu.setValidataCode(secretKey);
studentinfoService.updateStudentinfo(stu);
//將用戶名、過期時(shí)間、密鑰生成鏈接密鑰
String key =stu.getUsernumber() + "$" + date + "$" + secretKey;
String digitalSignature = MD5Util.getMd5(key);// 數(shù)字簽名
HttpServletRequest request= ServletActionContext.getRequest();
String path=request.getContextPath();
String basePath=request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path;
String resetPassHref = basePath + "/toFindPassword3.action?sid="+ digitalSignature +"&id="+stu.getId();
String emailContent = "請勿回復(fù)本郵件.點(diǎn)擊下面的鏈接,重設(shè)密碼,本郵件超過30分鐘,鏈接將會失效,需要重新申請找回密碼." + resetPassHref;
return emailContent;
}3.郵件發(fā)送成功后進(jìn)入郵箱,通過該鏈接進(jìn)入修改密碼請求,鏈接驗(yàn)證通過后進(jìn)入修改密碼頁面

/**
* @Description: 該方法用于處理從郵箱鏈接過來的修改密碼請求
* @author Mr.chen
* @date 2016-11-3 下午02:24:17
*/
public String toFindPassword3(){
String message="";
HttpServletRequest request= ServletActionContext.getRequest();
//獲取鏈接中的加密字符串
String sid=request.getParameter("sid");
//獲取鏈接中的用戶名
String id=request.getParameter("id");
if(StringUtils.isBlank(sid)||StringUtils.isBlank(id)){
System.out.println("請求的鏈接不正確,請重新操作.");
message="請求的鏈接不正確,請重新操作.";
}
Studentinfo stu=studentinfoService.getStudentinfoById(Long.parseLong(id));
if(stu!=null){
//獲取當(dāng)前用戶申請找回密碼的過期時(shí)間
//找回密碼鏈接已經(jīng)過期
if(stu.getOutDate()<=System.currentTimeMillis()){
System.out.println("鏈接已經(jīng)過期");
message="鏈接已經(jīng)過期";
}
//獲取當(dāng)前登陸人的加密碼
String key = stu.getUsernumber()+"$"+stu.getOutDate()/1000*1000+"$"+stu.getValidataCode();//數(shù)字簽名
String digitalSignature = MD5Util.getMd5(key);// 數(shù)字簽名
if(!digitalSignature.equals(sid)){
System.out.println("鏈接加密密碼不正確");
message="鏈接加密密碼不正確";
}else{
//驗(yàn)證成功,跳入到修改密碼界面
request.setAttribute("stu", stu);
}
}else{
System.out.println("用戶信息不存在");
message="用戶信息不存在";
request.setAttribute("message", message);
}
return SUCCESS;
}
4.輸入新密碼,驗(yàn)證成功后即修改成功

以上就是本文的全部內(nèi)容,希望對大家的學(xué)習(xí)有所幫助,也希望大家多多支持創(chuàng)新互聯(lián)。
名稱欄目:java實(shí)現(xiàn)通過綁定郵箱找回密碼功能
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