微信公众号开发之分享接口实现
第一步:先登录微信公众平台进行设置JS接口安全域名("域名不能包含http://")。
如图:
第二步:配置config接口权限验证
首先需要通过获取access_token凭证,然后通过获取到的access_token来请求获得jsapi_ticket
/*** 获取access_token* @return*/public static String getaccess_token(String url){String tokenurl=url+"l&appid="+WeiXinUtil.appID+"&secret="+WeiXinUtil.appsecret;String resultStr="";try {resultStr=HttpUploadFile.getUrlCon(tokenurl);JSONObject objec=JSONObject.parseObject(resultStr);System.out.println("返回结果>>>>>>>>>:"+resultStr);if(!StringUtils.isEmpty(objec.getString("access_token"))){resultStr=objec.getString("access_token");}} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();System.out.println("获取token异常");}System.out.println("获取token值为>>>>>>>>:"+resultStr);return resultStr;}
try {resultStr=HttpUploadFile.getUrlCon(url);JSONObject objec=JSONObject.parseObject(resultStr);System.out.println("返回结果>>>>>>>>>:"+resultStr);if(objec!=null){resultStr=objec.getString("ticket");}} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();System.out.println("获取ticket异常");}
然后验证签名
@ResponseBodypublic Map<String, String> share(String url) throws Exception {Map<String, String> map = new HashMap<String, String>();String jsapi_ticket = WeiXinInterface.getjsapiTicket();//jsapi_ticketString timestamp = Long.toString(System.currentTimeMillis() / 1000);//时间戳String nonceStr = UUID.randomUUID().toString();String signature = SignUtil.getSignature(jsapi_ticket, nonceStr, timestamp,url);//验证签名map.put("url", url);map.put("jsapi_ticket", jsapi_ticket);map.put("nonceStr", nonceStr);map.put("timestamp", timestamp);map.put("signature", signature);map.put("appid",WeiXinUtil.appID);return map;}
SginUtil工具类
package com.hlkj.utils;import java.security.MessageDigest;/*** 微信签名工具类* @author 楪祈**/public class SignUtil {/*** 获得分享链接的签名。* @param ticket* @param nonceStr* @param timeStamp* @param url* @return* @throws Exception*/public static String getSignature(String ticket, String nonceStr, String timeStamp, String url) throws Exception {String sKey = "jsapi_ticket=" + ticket+ "&noncestr=" + nonceStr + "×tamp=" + timeStamp+ "&url=" + url;System.out.println(sKey);return getSignature(sKey);}/*** 验证签名。* * @param signature* @param timestamp* @param nonce* @return*/public static String getSignature(String sKey) throws Exception {String ciphertext = null;MessageDigest md = MessageDigest.getInstance("SHA-1");byte[] digest = md.digest(sKey.toString().getBytes());ciphertext = byteToStr(digest);return ciphertext.toLowerCase();}/** * 将字节数组转换为十六进制字符串 * * @param byteArray * @return */ private static String byteToStr(byte[] byteArray) { String strDigest = ""; for (int i = 0; i < byteArray.length; i++) { strDigest += byteToHexStr(byteArray[i]); } return strDigest; } /** * 将字节转换为十六进制字符串 * * @param mByte * @return */ private static String byteToHexStr(byte mByte) { char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; char[] tempArr = new char[2]; tempArr[0] = Digit[(mByte >>> 4) & 0X0F]; tempArr[1] = Digit[mByte & 0X0F]; String s = new String(tempArr); return s; }}
第三步:需要进行分享功能的页面编写(需要导入微信提供的js)
<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%><%@ taglib prefix="c" uri="/jsp/jstl/core"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/static/";%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>微信分享页面</title><script type="text/javascript" src="http://res./open/js/jweixin-1.2.0.js"></script><script type="text/javascript" src="<%=path %>/js/jquery-1.11.1.min.js"></script><script type="text/javascript">$(function(){$.ajax({url:"<%=path%>/share",type:"post",data:{"url":window.location.href// 获取页面当前链接},dataType:"json",success: function(data){wx.config({debug: false, // 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:data["appid"], // 必填，公众号的唯一标识timestamp: data["timestamp"], // 必填，生成签名的时间戳nonceStr: data["nonceStr"], // 必填，生成签名的随机串signature: data["signature"],// 必填，签名jsApiList: ["onMenuShareTimeline","onMenuShareQQ","onMenuShareAppMessage"] // 必填，需要使用的JS接口列表});}});wx.ready(function () {//分享到朋友wx.onMenuShareAppMessage({title: '来自安然失笑i的分享', // 分享标题desc: '测试分享功能', // 分享描述link: window.location.href, // 分享链接imgUrl: 'http://lhf.<%=path%>/img/ico_tip.png', // 分享图标type: 'link', // 分享类型,music、video或link，不填默认为linksuccess: function () { alert("分享成功");},cancel: function () { alert("未分享!");}});//分享到QQwx.onMenuShareQQ({title: '来自安然失笑i的分享', // 分享标题desc: '测试分享功能', // 分享描述link: window.location.href, // 分享链接imgUrl: 'http://lhf.<%=path%>/img/ico_tip.png', // 分享图标success: function () {// 用户确认分享后执行的回调函数},cancel: function () {// 用户取消分享后执行的回调函数}});});});</script></head><body>暂时没有内容</body></html>
在开发中遇到config:invalid url domain的原因
