微信小程序 聊天室简单实现
utils文件夹下websoctet.js文件
var url = 'ws://地址端口';
function connect(user, func) {
wx.connectSocket({
url: url,
header: {"content-type":'application/x-www-form-urlencoded'}
});
wx.onSocketOpen(function (res) {
send('{"type":"login","client_name":"'+user.nickName+'","room_id":"1"}')
});
//接受消息
wx.onSocketMessage(func);
}
//发送消息
function send(msg) {
wx.sendSocketMessage({ data: msg });
}
module.exports = {
connect: connect,
send: send
}
具体页面.js文件内容：
var websocket = require('../../utils/websocket.js');
//事件处理函数
add: function (e) {
websocket.send('{"type":"say","from_client_id":"'+user.nickName+'","to_client_id":"all","content":"'+this.data.message+'"}')
},
onLoad: function () {
var that = this
//调用应用实例的方法获取全局数据
app.getUserInfo(function (userInfo) {
user = userInfo;
websocket.connect(user, function (res) {
text = that.encodeStr(res.data) + "\n";
console.log(res)
that.setData({
text: text
});
// websocket.send('{"type":"pong"}');
})
})
},
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。
encodeStr: function (str) {
var character = str.split("\\u");
var native1 = character[0];
for (var i = 1; i < character.length; i++) {
var code = character[i];
native1 += String.fromCharCode(parseInt("0x" + code.substring(0, 4)));
if (code.length > 4) {
native1 += code.substring(4, code.length);
}
}
return native1
},
感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！
