本文实例为大家分享了java实现通过绑定邮箱找回密码功能，供大家参考，具体内容如下
1.输入用户名及验证码,验证用户名是否存在
(1).生成验证码工具类
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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(这里用一句话描述这个类的作用) * @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)); //画随机线 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); } //从另一方向画随机线 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); } //生成随机数,并将随机数字转换为字母 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).生成验证码action
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/** * @description: 获取验证码 * @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); //表明生成的响应是图片 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).验证用户名是否存在 /** * @description: 检查用户名是否存在 * @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.用户名验证通过后往绑定邮箱发送邮件
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/** * @description: 发送邮件 * @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"); //验证写信者邮箱,此处使用第三方授权码登陆,使用密码不知道为什么登录不上 authenticator authenticator = new popauthenticator("123456789@qq.com", "**************"); //创建会话 session session = session.getinstance(prop,authenticator); //填写信封写信 message msg = new mimemessage(session); //设置发邮件的原地址 msg.setfrom(new internetaddress("123456789@qq.com")); //设置接收人 msg.setrecipient(recipienttype.to, new internetaddress(stu.getemail())); msg.setsubject("找回密码!"); msg.settext(this.createlink(stu)); //验证用户名密码发送邮件 transport transport = session.gettransport(); transport.send(msg); request.setattribute("stu", stu); return success; }catch(exception e){ e.printstacktrace(); } return error; } |
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/** * @description: 生成邮箱链接地址 * @author mr.chen * @date 2016-11-3 下午01:50:14 */ public string createlink(studentinfo stu){ //生成密钥 string secretkey=uuid.randomuuid().tostring(); //设置过期时间 date outdate = new date(system.currenttimemillis() + 30 * 60 * 1000);// 30分钟后过期 system.out.println(system.currenttimemillis()); long date = outdate.gettime() / 1000 * 1000;// 忽略毫秒数 mysql 取出时间是忽略毫秒数的 //此处应该更新studentinfo表中的过期时间、密钥信息 stu.setoutdate(date); stu.setvalidatacode(secretkey); studentinfoservice.updatestudentinfo(stu); //将用户名、过期时间、密钥生成链接密钥 string key =stu.getusernumber() + "$" + date + "$" + secretkey; string digitalsignature = md5util.getmd5(key);// 数字签名 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 = "请勿回复本邮件.点击下面的链接,重设密码,本邮件超过30分钟,链接将会失效，需要重新申请找回密码." + resetpasshref; return emailcontent; } |
3.邮件发送成功后进入邮箱,通过该链接进入修改密码请求，链接验证通过后进入修改密码页面
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/** * @description: 该方法用于处理从邮箱链接过来的修改密码请求 * @author mr.chen * @date 2016-11-3 下午02:24:17 */ public string tofindpassword3(){ string message=""; httpservletrequest request= servletactioncontext.getrequest(); //获取链接中的加密字符串 string sid=request.getparameter("sid"); //获取链接中的用户名 string id=request.getparameter("id"); if(stringutils.isblank(sid)||stringutils.isblank(id)){ system.out.println("请求的链接不正确,请重新操作."); message="请求的链接不正确,请重新操作."; } studentinfo stu=studentinfoservice.getstudentinfobyid(long.parselong(id)); if(stu!=null){ //获取当前用户申请找回密码的过期时间 //找回密码链接已经过期 if(stu.getoutdate()<=system.currenttimemillis()){ system.out.println("链接已经过期"); message="链接已经过期"; } //获取当前登陆人的加密码 string key = stu.getusernumber()+"$"+stu.getoutdate()/1000*1000+"$"+stu.getvalidatacode();//数字签名 string digitalsignature = md5util.getmd5(key);// 数字签名 if(!digitalsignature.equals(sid)){ system.out.println("链接加密密码不正确"); message="链接加密密码不正确"; }else{ //验证成功,跳入到修改密码界面 request.setattribute("stu", stu); } }else{ system.out.println("用户信息不存在"); message="用户信息不存在"; request.setattribute("message", message); } return success; } |
4.输入新密码，验证成功后即修改成功
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/u012498149/article/details/53022135
