微信小程序事件处理的代码是怎样的呀？

//事件处理函数
bindViewTap:function(){ var that = this; wx.request({
url:"http://localhost:8080/login' method:"POST", data:{
username: this.data.userName, password:this.data.password}，
header:{
"content-type': 'application/json’// 默认值
}，
success(res){
if(res.data.status == '0'){
app.globalData.userLogged=true;
wx.setStorageSync("sessionid",res.header["Set-Cookie"]);//存储cookie 
wx.navigateTo({
url: '../books/books'
})
}else{
that.setData({"errorMessage”:"用户名密码错误"});//console.log(res);
}