小程序开发之登录 附代码

小程序js：

1. //app.js
2. App({
3. onLaunch: function () {
4. //调用API从本地缓存中获取数据
5. var logs = wx.getStorageSync('logs') || []
6. logs.unshift(Date.now())
7. wx.setStorageSync('logs', logs)
8. wx.login({
9. success: function(res) {
10. if (res.code) {
11. //发起网络请求
12. wx.getUserInfo({
13. success: function(ures) {
14. var userInfo = ures.userInfo
15. var nickName = userInfo.nickName
16. var avatarUrl = userInfo.avatarUrl
17. var gender = userInfo.gender //性别 0：未知、1：男、2：女
18. var province = userInfo.province
19. var city = userInfo.city
20. var country = userInfo.country
21. wx.request({
22. url: 'https://m.xxx.com/index.PHP',
23. data: {
24. m: 'api',
25. c: 'wechat' ,
26. a: 'xcx_do_auth',
27. code: res.code,
28. rawData: ures.rawData,
29. encryptData: ures.encryptData,
30. encryptedData: ures.encryptedData,
31. iv: ures.iv,
32. signature: ures.signature
33. },
34. header: {
35. "Content-Type": "application/x-www-form-urlencoded"
36. },
37. success: function(lres) {
38. console.log(lres.data)
39. }
40. })
41. //request
42. }
43. })
44. //getUserInfo
45. } else {
46. console.log('获取用户登录态失败！' + res.errMsg)
47. }
48. //login
49. }
50. });
51. wx.checkSession({
52. success: function(){
53. //登录态未过期
54. },
55. fail: function(){
56. //登录态过期
57. wx.login()
58. }
59. });
60. },
61.  
62. globalData:{
63. userInfo:null,
64. ajaxUrl: "https://m.xxx.com/index.php",
65. baseUrl: "https://www.xxx.com/",
66. code : null,
67. pageNum : 1,
68. }
69. })

php

1. //获取session_key
2.  
3. function xcx_openid_session_key($code)
4. {
5. require_once ROOT_PATH.'/weixin/wxHelper.php';
6. $wxHelper = new wxHelper();
7. //小程序配置参数
8. $xcxConfig = include_once ROOT_PATH.'/weixin/xcxConfig.php';
9. //crul
10. $result = $wxHelper->httpGet("https://api.weixin.qq.com/sns/jscode2session?appid={$xcxConfig['AppId']}&secret={$xcxConfig['AppSecret']}&js_code=$code&grant_type=authorization_code");
11. $result = json_decode($result, true);
12. if(!empty($result['openid'])){
13. $res['AppId'] = $xcxConfig['AppId'];
14. $res['AppSecret'] = $xcxConfig['AppSecret'];
15. $res['session_key'] = $result['session_key'];
16. $res['openid'] = $result['openid'];
17. }else{
18. $res['errcode'] = 1;
19. $res['errmsg'] = 'no openid';
20. }
21.  
22. return $res;
23. }

//登录

1. public function xcx_do_auth()
2. {
3. $msg = array();
4. $code = $_REQUEST['code'];
5. $rawData = $_REQUEST['rawData'];
6. $signature = $_REQUEST['signature'];
7. $encryptData = $_REQUEST['encryptData'];
8. $encryptedData = $_REQUEST['encryptedData'];
9. $iv = $_REQUEST['iv'];
10.  
11.  
12. //验证code
13. if(empty($code))
14. {
15. $msg['error'] = '106';
16. $msg['msg'] = 'lack of the param code';
17. die(json_encode($msg));
18. }
19. //请求微信服务器，获取openid和session_key
20. $result = xcx_openid_session_key($code);
21. if(empty($result['errmsg'])){
22.  
23. $rawData2 = str_replace("\\", "", $rawData);
24. $rawData3 = $rawData2.$result['session_key'];
25. $signature2 = sha1($rawData3);
26. if($signature == $signature2){
27. include_once(ROOT_PATH."/weixin/wxBizDataCrypt.php");
28. $pc = new WXBizDataCrypt($result['AppId'], $result['session_key']);
29. $lastData = $pc->decryptData($encryptedData, $iv, $data );
30.  
31. if (empty($lastData['errorMsg'])) {
32.  
33. $lastDataArr = json_decode($lastData, true);
34. $lastDataArr2['openid'] = $lastDataArr['openId'];
35. $lastDataArr2['nickName'] = $lastDataArr['nickName'];
36. $lastDataArr2['sex'] = $lastDataArr['gender'];
37. $lastDataArr2['language'] = $lastDataArr['language'];
38. $lastDataArr2['city'] = $lastDataArr['city'];
39. $lastDataArr2['province'] = $lastDataArr['province'];
40. $lastDataArr2['country'] = $lastDataArr['country'];
41. $lastDataArr2['headimgurl'] = $lastDataArr['avatarUrl'];
42. $lastDataArr2['unionid'] = $lastDataArr['unionId'];
43. self::update_xcxweixin_user($lastDataArr2); //更新用户信息
44. die($_SESSION['user_id']);
45. } else {
46. $msg['error'] = '106';
47. $msg['msg'] = 'lack of the param unionId';
48. die(json_encode($msg, true));
49. }
50. }else{
51. $msg['error'] = '106';
52. $msg['msg'] = 'lack of the param signature';
53. die(json_encode($msg));
54. }
55. }else{
56. $msg['error'] = '106';
57. $msg['msg'] = 'lack of the param openid';
58. die(json_encode($msg));
59. }
60.  
61. }