微信接口 微信分享带图片、标题、描述 JAVA
官方JS-SDK说明文档地址：https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421141115
1、先登录微信公众平台进入“公众号设置”的“功能设置”里填写“JS接口安全域名”。【备注：登录后可在“开发者中心”查看对应的接口权限。】
2、前台js代码：
1>、前端页面引入JS：<script src="https://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>
2>、加入下面js
var title = "特朗普结束访华 离开北京";//分享标题
var desc = "朗普访华#[美国总统特朗普结束访华]美国总统特朗普10日上午结束对中国的国事访问，乘专机离开北京。";//分享描述
var link = "${wechatSign.pageUrl}";//分享链接
var imgUrl = "http://n.sinaimg.cn/news/transform/20171110/AvUQ-fynstfh3322960.jpg";//图片图标
$(function(){
wx.config({
debug: false,
appId: '${wechatSign.appid}',//公众号appid
timestamp:'${wechatSign.timestamp}', //生成签名时间戳
nonceStr:'${wechatSign.noncestr}', //生成签名随机字符串
signature:'${wechatSign.signature}', //签名
jsApiList: [
'checkJsApi',
'onMenuShareTimeline',
'onMenuShareAppMessage',
'onMenuShareQQ',
'onMenuShareWeibo',
'onMenuShareQZone'
]
});
});
wx.ready(function () {
wx.onMenuShareTimeline({
title: title, // 分享标题
desc: desc, // 分享描述
link: link, // 分享链接
imgUrl: imgUrl, // 分享图标
success: function () {
// 用户确认分享后执行的回调函数
console.log("test");
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
wx.onMenuShareAppMessage({
title: title, // 分享标题
desc: desc, // 分享描述
link: link, // 分享链接
imgUrl: imgUrl, // 分享图标
//type: '', // 分享类型,music、video或link，不填默认为link
//dataUrl: '', // 如果type是music或video，则要提供数据链接，默认为空
success: function () {
// 用户确认分享后执行的回调函数
console.log("test");
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
wx.onMenuShareQQ({
title: title, // 分享标题
desc: desc, // 分享描述
link: link, // 分享链接
imgUrl: imgUrl, // 分享图标
success: function () {
// 用户确认分享后执行的回调函数
console.log("test");
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
wx.onMenuShareWeibo({
title: title, // 分享标题
desc: desc, // 分享描述
link: link, // 分享链接
imgUrl: imgUrl, // 分享图标
success: function () {
// 用户确认分享后执行的回调函数
console.log("test");
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
wx.onMenuShareQZone({
title: title, // 分享标题
desc: desc, // 分享描述
link: link, // 分享链接
imgUrl: imgUrl, // 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
}
});
})
后台代码：
1>、Controller层
@RequestMapping("/default")
public String frontDefault(Model model,HttpServletRequest request){
//获取access_token
String access_token = getWechatService.getAccessTokenOfJssdk();
//根据token获取jsapi_ticket
String jsapi_ticket = getWechatService.getJsapiTicketOfJssdk(access_token);
Long timestamp = new Date().getTime()/1000;
UUID uuid = UUID.randomUUID();
String noncestr=uuid.toString();
String param = request.getQueryString();
String pageUrl = request.getRequestURL().toString();
if (param != "" && param != null)
{
pageUrl = pageUrl + "?" + param;
}
String signature = "jsapi_ticket="+jsapi_ticket+"&noncestr="+noncestr+"×tamp="+timestamp+"&url="+pageUrl;
signature = getSha1(signature);
String appid = "wxd7a6d344bc0c6abc";//公众号appid
Map<String,Object> wechatSign = new HashMap<String,Object>();
wechatSign.put("timestamp", timestamp);
wechatSign.put("noncestr", noncestr);
wechatSign.put("signature", signature);
wechatSign.put("appid", appid);
wechatSign.put("pageUrl", pageUrl);
model.addAttribute("wechatSign", wechatSign);
return "/default.html";
}
//sha1
public String getSha1(String str) {
if (null == str || 0 == str.length()){
return null;
}
char[] hexDigits = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'a', 'b', 'c', 'd', 'e', 'f'};
try {
MessageDigest mdTemp = MessageDigest.getInstance("SHA1");
mdTemp.update(str.getBytes("UTF-8"));
byte[] md = mdTemp.digest();
int j = md.length;
char[] buf = new char[j * 2];
int k = 0;
for (int i = 0; i < j; i++) {
byte byte0 = md[i];
buf[k++] = hexDigits[byte0 >>> 4 & 0xf];
buf[k++] = hexDigits[byte0 & 0xf];
}
return new String(buf);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return null;
}
2>、Service层
@Service
public class GetWechatServiceImpl implements GetWechatService{
//绑定公众号appid
String appid = "wxd7a6d344bc0c6abc";
//绑定公众号secret
String secret = "29085320d3bd472t29192cd4eecd6166";
@Resource
private GetWechatDao getWechatDao;
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
@Override
public String getAccessTokenOfJssdk() {
// TODO Auto-generated method stub
String getTokenUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+appid+"&secret="+secret;
//查询数据库，是否存在access_token
List<Map<String, Object>> tokenJsonList = getWechatDao.selectGlobalAccessToken();
//存在？
if(tokenJsonList.size() > 0) {
Map<String, Object> jsonStr = tokenJsonList.get(0);
System.out.println("----------"+jsonStr);
JSONObject tokenJson = JSONObject.parseObject(JSON.toJSONString(jsonStr));
//获取上次写入token时间
String dateTime = tokenJson.get("validdate").toString();
try {
Date validdate = sdf.parse(dateTime);
//比较与当前时间差
Long times = DateUtil.timeDifference(validdate);
if(times <-5400) {//token小于1.5小时，则重新获取
String newTokenStr = new HttpRequestor().doGet(getTokenUrl);
JSONObject newTokenJson = JSONObject.parseObject(newTokenStr);
String newToken = newTokenJson.getString("access_token");
if(newToken !=null && newToken!="") {
//写入数据库
getWechatDao.updateGlobalAccessToken(newToken);
return newToken;
}
}else {
return tokenJson.get("value").toString();
}
} catch (Exception e) {
// TODO: handle exception
}
}
return null;
}
@Override
public String getJsapiTicketOfJssdk(String accessToken) {
// TODO Auto-generated method stub
String jsapiUrl = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token="+accessToken+"&type=jsapi";
List<Map<String, Object>> ticketJsonList = getWechatDao.selectJsapiTicket();
if(ticketJsonList.size() > 0) {
Map<String, Object> jsonStr = ticketJsonList.get(0);
JSONObject ticketJson = JSONObject.parseObject(JSON.toJSONString(jsonStr));
String dateTime = ticketJson.get("validdate").toString();
try {
Date validdate = sdf.parse(dateTime);
Long times = DateUtil.timeDifference(validdate);
if(times <-5400) {//token小于1.5小时，则重新获取
System.out.println("----------------------"+jsapiUrl);
String newTicketStr = new HttpRequestor().doGet(jsapiUrl);
System.out.println("----------------------"+newTicketStr);
JSONObject newTicketJson = JSONObject.parseObject(newTicketStr);
String newTicket = newTicketJson.getString("ticket");
System.out.println("----------------------"+newTicket);
if(newTicket !=null && newTicket!="") {
//写入数据库
getWechatDao.updateJsapiTicket(newTicket);
return newTicket;
}
}else {
return ticketJson.get("value").toString();
}
} catch (Exception e) {
// TODO: handle exception
}
}
return null;
}
}
