本文實(shí)例為大家分享了java實(shí)現(xiàn)通過(guò)綁定郵箱找回密碼功能，供大家參考，具體內(nèi)容如下
1.輸入用戶(hù)名及驗(yàn)證碼,驗(yàn)證用戶(hù)名是否存在
(1).生成驗(yàn)證碼工具類(lèi)
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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(這里用一句話(huà)描述這個(gè)類(lèi)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(huà)隨機(jī)線(xiàn) 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(huà)隨機(jī)線(xiàn) 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
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/** * @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(hù)名是否存在 /** * @description: 檢查用戶(hù)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(hù)名驗(yàn)證通過(guò)后往綁定郵箱發(fā)送郵件
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/** * @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(xiě)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(huì)話(huà) session session = session.getinstance(prop,authenticator); //填寫(xiě)信封寫(xiě)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(hù)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; } |
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/** * @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(guò)期時(shí)間 date outdate = new date(system.currenttimemillis() + 30 * 60 * 1000);// 30分鐘后過(guò)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(guò)期時(shí)間、密鑰信息 stu.setoutdate(date); stu.setvalidatacode(secretkey); studentinfoservice.updatestudentinfo(stu); //將用戶(hù)名、過(guò)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(qǐng)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(guò)30分鐘,鏈接將會(huì)失效，需要重新申請(qǐng)找回密碼." + resetpasshref; return emailcontent; } |
3.郵件發(fā)送成功后進(jìn)入郵箱,通過(guò)該鏈接進(jìn)入修改密碼請(qǐng)求，鏈接驗(yàn)證通過(guò)后進(jìn)入修改密碼頁(yè)面
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/** * @description: 該方法用于處理從郵箱鏈接過(guò)來(lái)的修改密碼請(qǐng)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(hù)名 string id=request.getparameter("id"); if(stringutils.isblank(sid)||stringutils.isblank(id)){ system.out.println("請(qǐng)求的鏈接不正確,請(qǐng)重新操作."); message="請(qǐng)求的鏈接不正確,請(qǐng)重新操作."; } studentinfo stu=studentinfoservice.getstudentinfobyid(long.parselong(id)); if(stu!=null){ //獲取當(dāng)前用戶(hù)申請(qǐng)找回密碼的過(guò)期時(shí)間 //找回密碼鏈接已經(jīng)過(guò)期 if(stu.getoutdate()<=system.currenttimemillis()){ system.out.println("鏈接已經(jīng)過(guò)期"); message="鏈接已經(jīng)過(guò)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(hù)信息不存在"); message="用戶(hù)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?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持服務(wù)器之家。
原文鏈接：https://blog.csdn.net/u012498149/article/details/53022135
