access_token、同步菜单以及创建自定义菜单

现在人们越来越离不开微信，有数据统计平均每个人打开微信的次数为7-8次/天，与微信相关的技术也开始出现，比如微信二次开发，有可能很多人还不太懂知道微信二次开发，只知道别人都做了自己也要做，那么下面云端科技就浅谈一下，不涉及高深的技术只是让你能够清楚的知道这是怎么一件事。

@Controller
@RequestMapping("wechat")
public class WeChatController {

    @RequestMapping(value = "/hello")
    public String index(){
        return "index";
    }

    @RequestMapping(value = "/detail")
    public String detail(){
        return "detailpage";
    }


    @RequestMapping(value = "/home",method= RequestMethod.GET)
    @ResponseBody
    public void valid(HttpServletRequest request, HttpServletResponse response) throws IOException {
        boolean isGet = request.getMethod().toLowerCase().equals("get");
        String code = request.getParameter("code");
        if (isGet) {
            // 微信加密签名
            String signature = request.getParameter("signature");
            // 时间戳
            String timestamp = request.getParameter("timestamp");
            // 随机数
            String nonce = request.getParameter("nonce");
            // 随机字符串
            String echostr = request.getParameter("echostr");

            PrintWriter out = response.getWriter();
            // 通过检验signature对请求进行校验，若校验成功则原样返回echostr，表示接入成功，否则接入失败
            if (SignUtil.checkSignature(signature, timestamp, nonce)) {
                out.print(echostr);
            }
            out.close();
            out = null;
        }else{
            userpost(request,response);
        }
    }

    @RequestMapping(value = "/home",method= RequestMethod.POST)
    public void userpost(HttpServletRequest request, HttpServletResponse response) throws IOException   {
        request.setCharacterEncoding("UTF-8");
        PrintWriter out = response.getWriter();
        String str = null;
        String code = request.getParameter("code");
        try {
            Map<String, String> message = MessageUtil.xmlToMap(request);
            String fromUser = message.get("FromUserName");
            String toUser = message.get("ToUserName");
            String content = message.get("Content");
            String msgType = message.get("MsgType");
            String msgId = message.get("MsgId");
            Message ms = new Message();
            ms.setContent(content);
            ms.setFromUserName(toUser);
            ms.setToUserName(fromUser);
            ms.setMsgType(msgType);
            str = MessageUtil.textMessageToXml(ms).replace("\n","").replace(" ","");
            out.print(str);
            out.close();
            out = null;
        }catch (Exception e){
            e.printStackTrace();
        }
    }

签名认证

/** 
 * 请求校验工具类 
 *  
 * @author liufeng 
 * @date 2013-05-18 
 */  
public class SignUtil {  
    // 与接口配置信息中的Token要一致  
    private static String token = "chenmianhai";

    /** 
     * 验证签名 
     *  
     * @param signature 
     * @param timestamp 
     * @param nonce 
     * @return 
     */  
    public static boolean checkSignature(String signature, String timestamp, String nonce) {  
        String[] arr = new String[] { token, timestamp, nonce };  
        // 将token、timestamp、nonce三个参数进行字典序排序  
        Arrays.sort(arr);  
        StringBuilder content = new StringBuilder();  
        for (int i = 0; i < arr.length; i++) {  
            content.append(arr[i]);  
        }  
        MessageDigest md = null;  
        String tmpStr = null;  

        try {  
            md = MessageDigest.getInstance("SHA-1");  
            // 将三个参数字符串拼接成一个字符串进行sha1加密  
            byte[] digest = md.digest(content.toString().getBytes());  
            tmpStr = byteToStr(digest);  
        } catch (NoSuchAlgorithmException e) {  
            e.printStackTrace();  
        }  

        content = null;  
        // 将sha1加密后的字符串可与signature对比，标识该请求来源于微信  
        return tmpStr != null ? tmpStr.equals(signature.toUpperCase()) : false;  
    }  

    /** 
     * 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;  
    }  
}  

1.首先我们要有appid（wx4ff531ee8a470861）和appsecret（2ec9b2f1a1f67b8743d23f9fc70c1c97）。

2.这里我们用的是rh_mp与rh_mp_menu数据表。

3.首先我们在Common模块的Common文件夹下创建function.php文件，在里面我们写入以下获取access_token的代码和获取当前公众号的代码：

[php]  view plain  copy

1. function getAccess_token(){  
2.     $mp=M('mp')->where('is_use=1')->find();  
3.     if(empty($mp)) return false;  
4.     $id=$mp['id'];  
5.       if(empty($mp['access_token']) || $mp['expire_time']<time()){  
6.         $appid=$mp['appid'];  
7.         $appsecret=$mp['appsecret'];  
8.         $url="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=".$appsecret;//接口  
9.         include APP_PATH.'LaneWeChat/lanewechat.php';  
10.         $arr= \LaneWeChat\Core\Curl::callWebServer($url,'','GET');  
11.         // print_r($arr);  
12.         // exit;  
13.         if(isset($arr['access_token'])){  
14.             $data['access_token']=$arr['access_token'];  
15.             $data['expire_time']=$arr['expires_in']+ time()-200;  
16.             // print_r($data);  
17.             // exit;  
18.             // $data=M('mp')->create($data);  
19.            M("mp")->where("id=$id")->save($data);  
20.           
21.             return $arr['access_token'];  
22.         }else{  
23.             return false;  
24.         }  
25.       }else{  
26.         return $mp['access_token'];  
27.       }  

[php]  view plain  copy

1. function getCurrentMp(){  
2.     $mp=M('mp')->where('is_use=1')->find();  
3.     return  $mp;  
4. }  

在menuController.class.php中增加以下代码：

[php]  view plain  copy

1. <?php  
2. namespace Home\Controller;  
3. use Think\Controller;  
4. use LaneWeChat\Core\menu;  
5. // define('WECHAT_APPID','wx4ff531ee8a470861');  
6. // define('WECHAT_APPSECRET','2ec9b2f1a1f67b8743d23f9fc70c1c97');  
7. class MenuController extends Controller {  
8.     public function index(){  
9.         $mp=getCurrentMp();  
10.         if(empty($mp)){  
11.             $this->error('无此公账号',U('mp/index'));  
12.         }  
13.         $data=M('mp_menu')->where("mp_id={$mp['id']}")->order('id')->select();  
14.         $data2=$data;  
15.         foreach ($data as $k => $v) {  
16.             foreach ($data2 as $k2 => $v2) {  
17.                 if($v['index']==$v2['pindex']){  
18.                     $data[$k]['sub'][]=$v2;  
19.                     unset($data[$k2]);  
20.                 }  
21.             }  
22.         }  
23.   
24.         $this->assign('mpInfo',$mp);  
25.         $this->assign('list',$data);  
26.         $this->display();  
27.     }  
28.     public function menuedit(){  
29.         $mp=getCurrentMp();  
30.         if(empty($mp)){  
31.             $this->ajaxReturn(array('error'=>true,'msg'=>'无此公账号','url'=>U('mp/index')));  
32.             exit;  
33.         }  
34.         $data=I('post.data');  
35.   
36.         foreach ($data as  &$value) {  
37.             $value['mp_id']=$mp['id'];  
38.         }  
39.         // }print_r($value);  
40.         // exit;  
41.         // $this->ajaxReturn($data);  
42.         // $arr=array();  
43.         // foreach ($data1 as $key => $value) {  
44.         //  $row=array();  
45.         //  $row['mp_id']=$mp['id'];  
46.         //  $row['index']=$value['id'];  
47.         //  $row['pindex']=$value['pid'];  
48.         //  $row['name']=$value['name'];  
49.         //  $row['content']=$value['code'];  
50.         //  $row['type']=$value['type'];  
51.         //  $row['sort']=$value['sort'];  
52.         //  $arr[]=$row;  
53.         // }  
54.         $model=M('mp_menu');  
55.         $model->where("mp_id={$mp['id']}")->delete();  
56.         $model->addAll($data);  
57.         // $this->ajaxReturn(array('error'=>false,'data'=>$arr));  
58.         // exit;  
59.         // $data2=$data1;  
60.         // foreach ($data1 as $key1 => $value1) {  
61.         //  foreach ($data2 as $key2 => $value2) {  
62.         //      if($value1['id']==$value2['pid']){  
63.         //          $data1[$key1]['type']='';  
64.         //          $data1[$key1]['code']='';  
65.         //          break;  
66.         //      }  
67.         //  }  
68.         //  unset($data1[$key1]['sort']);  
69.         //  if($value['type']='event'){  
70.         //      $value['type']=$value['code'];  
71.         //      $value['code']='k_'.rand(100,999);  
72.         //  }  
73.         // }  
74.           
75.             include APP_PATH.'LaneWeChat/lanewechat.php';  
76.             $ret= Menu::setMenu($data);  
77.           
78.             if($ret===true){  
79.                 $this->ajaxReturn(array('msg'=>'创建菜单成功'));  
80.             }else{  
81.                 $this->ajaxReturn(array('msg'=>$ret));  
82.             }  
83.             // file_put_contents('menu.txt',$ret);  
84.             // $this->ajaxReturn($ret);  
85.     }  
86.     public function downmenu(){  
87.         $mp = getCurrentMp();  
88. //      print_r($mp);  
89. // exit;  
90.         $mp_id = $mp['id'];  
91.   
92.         include APP_PATH . 'LaneWeChat/lanewechat.php';  
93.         $menu = Menu::getMenu($data);  
94.   
95.         // print_r($menu);  
96.         // exit;  
97.   
98.         // print_r($menu['menu']['button']);  
99.         // exit;  
100.   
101.         $menu = $menu['menu']['button'];  
102.   
103.         $arr = array();  
104.         $index = 1;  
105.         foreach ($menu as $key => &$value) {  
106.             $value['mp_id']= $mp_id;  
107.             $value['index'] = $index;  
108.             $value['pindex'] = 0;  
109.             $value['sort'] = $index;  
110.               
111.             if(!empty($value['sub_button'])){  
112.                 $value['type'] = '';//设置一级菜单，默认值  
113.                 $value['content'] = '';//设置一级菜单,默认值  
114.   
115.                 $sub_menu = $value['sub_button']; //把二级菜单入到变量$sub_menu  
116.                 unset($value['sub_button']);  
117.                 $arr[] = $value;  
118.   
119.                 $subindex = 1;  
120.                 foreach ($sub_menu as $subkey=>&$subvalue) {  
121.                     $subvalue['mp_id'] = $mp_id;  
122.                     $subvalue['index'] = $index . $subindex;  
123.                     $subvalue['pindex'] = $index;  
124.                     $subvalue['sort'] = $subindex;  
125.   
126.                     if($subvalue['type']== 'click'){  
127.                         $subvalue['content'] = $subvalue['key'];  
128.                         unset($subvalue['key']);  
129.                     }else if($subvalue['type']=='view'){  
130.                         $subvalue['content'] = $subvalue['url'];  
131.                         unset($subvalue['url']);  
132.                     }else {  
133.                            
134.                          $subvalue['content'] = $subvalue['type'];  
135.                          $subvalue['type'] = 'event';  
136.                          unset($subvalue['key']);  
137.                     }  
138.   
139.                     unset($subvalue['sub_button']);  
140.                     $arr[] = $subvalue;  
141.   
142.                     $subindex++;  
143.                 }  
144.                   
145.             }else{  
146.                 if($value['type']== 'click'){  
147.                     $value['content'] = $value['key'];  
148.                     unset($value['key']);  
149.                 }else if($value['type']=='view'){  
150.                     $value['content'] = $value['url'];  
151.                     unset($value['url']);  
152.                 }else {  
153.                        
154.                      $value['content'] = $value['type'];  
155.                      $value['type'] = 'event';  
156.                      unset($value['key']);  
157.                 }  
158.   
159.                 unset($value['sub_button']);  
160.                 $arr[] = $value;  
161.             }  
162.             $index++;  
163.         }  
164.   
165. //      print_r($arr);  
166. // exit;  
167.   
168.         $model = M('mp_menu');  
169.         $model->where("mp_id={$mp['id']}")->delete();  
170.         foreach ($arr as $key => $value) {  
171.             $model->add($value);   
172.         }  
173.         $this->redirect('index');  
174.           
175.     }  
176.     public function delmenu(){  
177.         // $mp=getCurrentMp();  
178.      //    include APP_PATH . 'LaneWeChat/lanewechat.php';  
179.         // $menu = Menu::delMenu($data);  
180.         // $this->display('index');  
181.         $mp = getCurrentMp();  
182.         $mp_id = $mp['id'];  
183.         // print_r($mp_id);  
184.         // exit;          
185.           
186.         include APP_PATH . 'LaneWeChat/lanewechat.php';  
187.         $menu =  \LaneWeChat\Core\Menu::delMenu();  
188.         // print_r($menu);  
189.         // exit;  
190.         $model = M('mp_menu');  
191.         $ret=$model->where("mp_id={$mp['id']}")->delete();  
192.         if($ret){  
193.             $this->success('删除成功');  
194.         }else{  
195.             $this->error('删除失败');  
196.         }  
197.     }  
198.   
199. }