focusToComment: function() {// 点击跳转评论document.getElementById("comment").focus()},

            submitComment: function() {if(this.PlayMusicMsg.username == "") {alert("请先登录")} else {// 这里把评论，用户名，评论日期作为一个对象，然后和歌曲名称一起作为对象传递给后台var message = this.messagevar username = this.PlayMusicMsg.username// 这里获取当前时间var date = new Date()var year = date.getFullYear()var month = date.getMonth() + 1var day = date.getDate()var commentDate = year + "年" + month + "月" + day + "日"var musicName = this.music.namevar commentObj = {message: message,username: username,commentDate: commentDate,pos: 0}var commentData = {musicName: musicName,commentObj: commentObj}// 发送请求this.$http.post('/query/insertMusicComment', commentData).then(function(response) {if(response.body.errno === 0) {// 成功，更新界面var newpos = response.body.datavar commentObj = {message: message,username: username,commentDate: commentDate,pos: newpos}this.comments.push(commentObj)alert("评论成功")}})}},

// 插入歌曲评论
queryRoutes.post('/insertMusicComment', function(req, res) {var musicName = req.body.musicNamevar commentObj = req.body.commentObjmusicCommentModel.find({musicName: musicName}, function(error, data) {console.log(data)if(data[0] != null) {// 数据存在，更新// 这里给每个评论添加一个序号var length = data[0].comments.lengthvar pos;if(length === 0) {pos = 1} else {var last = data[0].comments.length - 1pos = data[0].comments[last].pos + 1}commentObj.pos = posdata[0].comments.push(commentObj)musicCommentModel.update({musicName: musicName}, {comments: data[0].comments}, function(error, data) {res.send({errno: 0,data: pos})})} else {// 数据不存在，插入var comments = []commentObj.pos = 1comments.push(commentObj)var musicCommentEntity = new musicCommentModel({musicName: musicName,comments: comments})musicCommentEntity.save({}, function(error, data) {res.send({errno: 0,data: pos})})}})
})

<!--这里是删除评论元素绑定--><span v-show="index === i" @click="delComment(value.pos)" id="del-comment">删除评论</span>

show: function(index, username) {// 显示删除按钮，但是先判断当前用户名和评论用户名是否相等if(this.PlayMusicMsg.username === username) {this.i = index}},hide: function() {// 隐藏删除按钮this.i = -1},

            delComment: function(pos) {// 删除评论var delCommentData = {musicName: this.music.name,pos: pos}this.$http.post('/query/delComment', delCommentData).then(function(response) {if(response.body.errno === 0) {// 删除成功,更新界面var comments = this.commentsconsole.log(comments)for(var key in comments) {if(comments[key].pos === pos) {comments.splice(key, 1)break}}this.comments = comments}})}

// 删除歌曲评论
queryRoutes.post('/delComment', function(req, res) {var musicName = req.body.musicNamevar pos = req.body.posmusicCommentModel.find({musicName: musicName}, function(error, data) {var comments = data[0].commentsfor(var key in comments) {if(comments[key].pos === pos) {comments.splice(key, 1)break}}musicCommentModel.update({musicName: musicName}, {comments: comments}, function(error, data) {res.send({errno: 0,data: data})})})
})

// 关键词搜索音乐
queryRoutes.post('/search', function(req, res) {var searchStr = req.body.strvar reg = new RegExp(searchStr)// 关键词索引
    musicDataModel.find({$or: [{name: reg}, {singer: reg}]}, function(error, data) {res.send({errno: 0,data: data})})
})

            search: function(e) {if(e.keyCode === 13) {// 跳转到搜索结果页面，把数据发送过去this.$router.push({name: 'SearchResult',query: {str: this.searchStr}})this.$router.go(0)}}