作者：奋斗放个，来自原文地址 
//utils文件夹下websoctet.js文件

1. var url = 'ws://地址端口';
2.  
3. function connect(user, func) {
4.  
5. wx.connectSocket({
6. url: url,
7. header: {"content-type":'application/x-www-form-urlencoded'}
8. });
9. wx.onSocketOpen(function (res) {
10. send('{"type":"login","client_name":"'+user.nickName+'","room_id":"1"}')
11. });
12. //接受消息
13. wx.onSocketMessage(func);
14. }
15.  
16. //发送消息
17. function send(msg) {
18. wx.sendSocketMessage({ data: msg });
19. }
20. module.exports = {
21. connect: connect,
22. send: send
23. }

//具体页面.js文件内容：

1.  
2. var websocket = require('../../utils/websocket.js');
3. //事件处理函数
4. add: function (e) {
5. websocket.send('{"type":"say","from_client_id":"'+user.nickName+'","to_client_id":"all","content":"'+this.data.message+'"}')
6. },
7. onLoad: function () {
8. var that = this
9. //调用应用实例的方法获取全局数据
10. app.getUserInfo(function (userInfo) {
11. user = userInfo;
12. websocket.connect(user, function (res) {
13. text = that.encodeStr(res.data) + "\n";
14. console.log(res)
15. that.setData({
16. text: text
17. });
18. // websocket.send('{"type":"pong"}');
19. })
20. })
21. },

//下面方法很好玩，因为使用的服务器 是开源的PHP服务器，所以微信小程序接收到的聊天室中文内容是ASCII编码，所以经过此方法可以转换。

1. encodeStr: function (str) {
2. var character = str.split("\\u");
3. var native1 = character[0];
4. for (var i = 1; i < character.length; i++) {
5. var code = character[i];
6. native1 += String.fromCharCode(parseInt("0x" + code.substring(0, 4)));
7. if (code.length > 4) {
8. native1 += code.substring(4, code.length);
9. }
10. }
11. return native1
12. },