微信公眾號(hào)開發(fā)之設(shè)置自定義菜單實(shí)例代碼【java版】

更新時(shí)間：2018年06月20日 11:01:00 作者：YuanlongWang

這篇文章主要介紹了微信公眾號(hào)開發(fā)之設(shè)置自定義菜單實(shí)例代碼,本實(shí)例是為了實(shí)現(xiàn)在管理后臺(tái)實(shí)現(xiàn)微信菜單的添加刪除管理。需要的朋友可以參考下

本實(shí)例是為了實(shí)現(xiàn)在管理后臺(tái)實(shí)現(xiàn)微信菜單的添加刪除管理。

1、首先我們需要新建一個(gè)數(shù)據(jù)庫表用于存放menu菜單項(xiàng)

可包含的字段有id、父類id、name、排序、是否顯示、類型（view、click）、鏈接、adddate

注意后臺(tái)存menu菜單數(shù)據(jù)時(shí)，parentId=-1為一級(jí)菜單，或parendId為一級(jí)菜單的id作為該一級(jí)菜單下的二級(jí)菜單

2、在設(shè)置菜單時(shí)需要向微信接口傳menuJson字符串，所以要先拼接字符串，后臺(tái)定義一個(gè)creatMenu()

public bool creatMenu() 
    { 
      string menuJson = ""; 
      //這里默認(rèn)parentId=-1為最外層菜單，isactive=1為顯示,responseType=1為click類型 
      DataTable dtAMenu = Service.SelectDataTable("id, name, responseType, jsonStr,url", "WEIXINMENU", " parentId=-1 and isactive=1 order by sort"); 
      if (dtAMenu.Rows.Count > 0) 
      { 
        menuJson = "{\"button\":["; 
        for (int i = 0; i < dtAMenu.Rows.Count; i++) 
        { 
          DataTable dtBMenu = Service.SelectDataTable("id, name, responseType, jsonStr,url", wx, " parentId=" + dtAMenu.Rows[i]["id"].ToString() + " and isactive=1 order by sort"); 
          if (dtBMenu.Rows.Count > 0) 
          { 
            menuJson += "{\"name\":\"" + dtAMenu.Rows[i]["name"].ToString() + "\",\"sub_button\":["; 
            for (int j = 0; j < dtBMenu.Rows.Count; j++) 
            { 
              if (Convert.ToInt32(dtBMenu.Rows[j]["responseType"]) == 2) 
              { 
                menuJson += "{\"type\":\"view\",\"name\":\"" + dtBMenu.Rows[j]["name"].ToString() + "\",\"url\":\"" + dtBMenu.Rows[j]["jsonStr"].ToString() + "\"},"; 
              } 
              else 
              { 
                menuJson += "{\"type\":\"click\",\"name\":\"" + dtBMenu.Rows[j]["name"].ToString() + "\",\"key\":\"eventKey_" + dtBMenu.Rows[j]["id"].ToString() + "\"},"; 
              } 
            } 
            menuJson = menuJson.TrimEnd(','); 
            menuJson += "]},"; 
          } 
          else 
          { 
            //if (Convert.ToInt32(dtAMenu.Rows[i]["responseType"]) == 2) 
            //{ 
              menuJson += "{\"type\":\"view\",\"name\":\"" + dtAMenu.Rows[i]["name"].ToString() + "\",\"url\":\"" + dtAMenu.Rows[i]["jsonStr"].ToString() + "\"},"; 
            //} 
            //else 
            //{ 
            //  menuJson += "{\"type\":\"click\",\"name\":\"" + dtAMenu.Rows[i]["name"].ToString() + "\",\"key\":\"eventKey_" + dtAMenu.Rows[i]["id"].ToString() + "\"},"; 
            //} 
          } 
          dtBMenu.Dispose(); 
        } 
        dtAMenu.Dispose(); 
        menuJson = menuJson.TrimEnd(','); 
        menuJson += "]}"; 
        menuJson = menuJson.Trim(); 
        return requstZmToCreatMent(menuJson); 
      } 
      else 
      { 
        return false; 
      } 
    }

3、獲取到menujson字符串后調(diào)用微信接口創(chuàng)建菜單，需先獲取assess token,有關(guān)assess token獲取可參考：獲取AccessToken

/// <summary> 
    /// 向微信服務(wù)器請(qǐng)求創(chuàng)建自定義菜單 
    /// </summary> 
    /// <param name="jsonStr"></param> 
    /// <returns></returns> 
    ///  
    private bool requstZmToCreatMent(string jsonStr) 
    { 
      try 
      { 
        var AccessToken = "";//accesstoken需例外獲取，一般可開始時(shí)獲取后存數(shù)據(jù)庫，下次從數(shù)據(jù)庫取，注意accesstoken有效期為7200秒 
        //聲明一個(gè)HttpWebRequest請(qǐng)求 
        string interfaceUrl = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=" + AccessToken; 
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(interfaceUrl); 
        //設(shè)置連接超時(shí)時(shí)間  
        request.Timeout = 30000; 
        request.KeepAlive = true; 
        Encoding encodeType = Encoding.GetEncoding("UTF-8"); 
        request.Headers.Set("Pragma", "no-cache"); 
        request.Method = "POST"; 
        request.ContentType = "application/x-www-form-urlencoded"; 
        request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; Maxthon; .NET CLR 1.1.4322); Http STdns"; 
        request.Accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*"; 
        request.CookieContainer = new CookieContainer(); 
        byte[] Bytes = encodeType.GetBytes(jsonStr); 
        request.ContentLength = Bytes.Length; 
        request.AllowAutoRedirect = true; 
        //發(fā)送數(shù)據(jù) 
        using (Stream writer = request.GetRequestStream()) 
        { 
          writer.Write(Bytes, 0, Bytes.Length); 
          writer.Close(); 
        } 
        StringBuilder strb = new StringBuilder(); 
        //接收數(shù)據(jù) 
        using (Stream reader = request.GetResponse().GetResponseStream()) 
        { 
          StreamReader sr = new StreamReader(reader, encodeType); 
          strb.Append(sr.ReadToEnd()); 
          sr.Close(); 
          reader.Close(); 
        } 
        if ((strb.ToString().IndexOf("\"errcode\":42001") != -1) || (strb.ToString().IndexOf("\"errcode\":40001") != -1) || (strb.ToString().IndexOf("\"errcode\":40014") != -1) || (strb.ToString().IndexOf("\"errcode\":41001") != -1)) //access_token錯(cuò)誤 
        { 
          // AccessToken = getAccessToken(); 
          getzmAccessToken(); 
          return requstZmToCreatMent(jsonStr); 
        } 
        else 
        { 
          if (strb.ToString() == "{\"errcode\":0,\"errmsg\":\"ok\"}") 
          { 
            return true; 
          } 
          else 
          { 
            return false; 
          } 
        } 
      } 
      catch (Exception exp) 
      { 
        return false; 
      } 
    }

總結(jié)

以上所述是小編給大家介紹的微信公眾號(hào)開發(fā)之設(shè)置自定義菜單實(shí)例代碼，希望對(duì)大家有所幫助，如果大家有任何疑問請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)腳本之家網(wǎng)站的支持！

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