微信JSSDK开发，调用微信扫一扫jsp前端

来源：互联网发布：知乎留学中介编辑：程序博客网时间：2024/06/11 08:02

java后台代码

public Map getSignture(HttpServletRequest request,String urls) {String APPID = "";// 第三方用户唯一凭证，appidString APPSECRET = "";// 第三方用户唯一凭证密钥，即appsecret//获取微信access_token的URLString access_tokenURL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+ APPID + "&secret=" + APPSECRET;//获取微信access_tokenString access_token = LwxUtil.rulReturnJSON(access_tokenURL, "GET","access_token");String jsapi_ticketURL = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token="+ access_token + "&type=jsapi";//获取微信jsapi_ticket String jsapi_ticket = LwxUtil.rulReturnJSON(jsapi_ticketURL, "GET","ticket");return Sign.sign(jsapi_ticket, urls);}

jsp前段代码

<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>扫一扫</title><script type="text/javascript"src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script><script type="text/javascript" src="js/jquery-1.9.1.min.js"></script><script type="text/javascript">var urls = "${pageContext.request.contextPath}";var timestamp = "";// 时间戳var nonceStr = "";// 随机串var signature = "";// 签名$(function() {$.get(urls + "/getSignture.do", {"urls" : location.href}, function(res) {$.each(res, function(i, v) {if ("timestamp" == i.trim()) {timestamp = v;}if ("nonceStr" == i.trim()) {nonceStr = v;}if ("signature" == i.trim()) {signature = v;}});wx.config({debug : true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。appId : "wxae0029b16ee5cab4", // 必填，公众号的唯一标识timestamp : timestamp, // 必填，生成签名的时间戳nonceStr : nonceStr, // 必填，生成签名的随机串signature : signature,// 必填，签名，见附录1jsApiList : ["scanQRCode"]// 必填，需要使用的JS接口列表，所有JS接口列表见附录2});});});</script></head><body><input type="button" value="扫一扫" id="scanQRCode"style="width: 3rem; height: 3rem;" /><input type="text" id="sousuoid" placeholder="请输入商品关键字" name="ssnr"></body><script type="text/javascript" src="js/wx.js"></script></html>

wx.js代码

// 点击扫描按钮，扫描二维码并返回结果$("#scanQRCode").click(function() {wx.scanQRCode({ // 默认为0，扫描结果由微信处理，1则直接返回扫描结果 needResult : 1,    scanType: ["qrCode","barCode"], // 可以指定扫二维码还是一维码，默认二者都有desc : 'scanQRCode desc',success : function(res) { // 扫码后获取结果参数赋值给Inputalert(res);var url = res.resultStr; // 商品条形码，取","后面的if (url.indexOf(",") >= 0) {var tempArray = url.split(',');var tempNum = tempArray[1];$("#sousuoid").val(tempNum);} else {$("#sousuoid").val(url);}},error : function(){alert("fail");}});});

1 0