微信分享 java版

之前很少接触微信开发，最近让做分享有点蒙，下面是自己做分享的一些经验仅供参考

1、通过appId和secret获取access_token

public static String getAccessToken(String appid, String secret) {
    String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appid + "&secret=" + secret;
    JSONObject jsonObject = httpRequest(url, "GET", null);
    RTLogger.getLogger("WechatLog").debug("重新获取微信接口token返回："+jsonObject);
    try {
        if(jsonObject.getString("errcode")!=null){
            RTLogger.getLogger("WechatLog").debug("重新获取微信接口errcode返回："+jsonObject.getString("errcode"));
            return "false";
        }
    }catch (Exception e) {
    }
    return jsonObject.getString("access_token");
}

2、通过access_token获取jsappticket

public static String getJsapiTicket(String  token) {
    String url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token="+token+"&type=jsapi";
    JSONObject jsonObject = httpRequest(url, "GET", null);
    log.info("获得 jsonObject{}------："+jsonObject);
    try {
        if(!"0".equals(jsonObject.getString("errcode"))){
            return "false";
        }
    }catch (Exception e) {
    }
    return jsonObject.getString("ticket");
}

3、注意点token和ticket都是有默认有效期的，为了提高效率最好放到redis里面，过去时间比默认时间稍小

4、完成关键的两步，就是对数据的封装和编码了

@ModelAttribute("wechatInfo")
public WechatInfo prepareShareInfo(HttpServletRequest request){
    String isshare = request.getParameter("isshare");
    if(StringUtils.isBlank(isshare)){
        return null;
    }
    WechatInfo wechatInfo =new WechatInfo();
    String fullUrl = getFullRequestUrl(request);
    // 生成微信签名信息
    String appId = WxPayConstant.APP_ID;
    if (WxPayConstant.getIsUseTestWx()) {
        appId = WxPayConstant.TEST_APP_ID;
    }
    wechatInfo.setAppId(appId);
    wechatInfo.setUrl(fullUrl);
    long timestamp = System.currentTimeMillis() / 1000;
    wechatInfo.setTimestamp(timestamp);
    String nonceStr = UUIDUtil.genUUIDString();
    wechatInfo.setNonceStr(nonceStr);
    String jsapiTicket = WeiXinUtil.getTicket(jedisClient);
    String signParam = "jsapi_ticket=" + jsapiTicket + "&noncestr=" + nonceStr + "×tamp=" + timestamp + "&url=" + fullUrl; //参数一定按照这个字典循序排序，否者验签无法通过
    log.info("未编码前："+signParam);
    String signature = Sha.encodeSha1(signParam);
    log.info("编码后："+signature);
    wechatInfo.setSignature(signature);
    return wechatInfo;
}

5、java获取get请求全参数方法封装：

public static String getFullRequestUrl(HttpServletRequest request){
    String queryStr=request.getQueryString();
    String furl= String.valueOf(request.getRequestURL());
    if(StringUtils.isNotBlank(queryStr)){
        furl+="?"+queryStr;
    }
    return furl;
}

到现在后台的配置结束。

前端只需要导入微信jssdk进行相关配置即可

<#--微信公众号JSSDK-->

 

function weixin() {
    alert(appId)
    // 微信JSSDK配置
    wx.config({
        debug: false,
        appId:appId,
        timestamp:timestamp,
        nonceStr: nonceStr,
        signature:signature,
        jsApiList: [
            'checkJsApi',
            'onMenuShareWeibo',
            'onMenuShareTimeline',
            'onMenuShareAppMessage',
            'onMenuShareQQ',
            'onMenuShareQZone'
        ]
    });
}

wx.ready(function () {
    wx.checkJsApi({
        jsApiList: [
            'onMenuShareWeibo',
            'onMenuShareTimeline',
            'onMenuShareAppMessage',
            'onMenuShareQQ',
            'onMenuShareQZone'
        ],
        success: function (res) {
            console.log(res);
        }
    });
    wx.onMenuShareWeibo({
       title: "测试", desc: '测试', link: url, imgUrl: 链接
    });
    wx.onMenuShareTimeline({
         title: "测试", desc: '测试', link: url, imgUrl: 链接
    });
    wx.onMenuShareAppMessage({
       title: "测试", desc: '测试', link: url, imgUrl: 链接
    });
    wx.onMenuShareQQ({
         title: "测试", desc: '测试', link: url, imgUrl: 链接
    });
    wx.onMenuShareQZone({
         title: "测试", desc: '测试', link: url, imgUrl: 链接
    });
});