从0-1开发一个Vue3前端系统页面-10.导航栏菜单选中问题

注意：本项目已将前端源码同步上传至Gitee，项目已开源，仅供参考，不涉及商用，著作权归本人所有。

开源项目链接：Wandering-children-have-the-stars-as-companions: WCHTSAC (gitee.com)https://gitee.com/Chunshuqiuli/wandering-children-have-the-stars-as-companions

本节解决的问题是导航栏菜单点击浏览器返回按钮和刷新按钮时菜单选中状态异常。

详细信息见

前端Vue监听路由变化， 点击页面内按钮跳转菜单更改导航菜单选中状态-CSDN博客https://blog.csdn.net/XiaomeiGuiSnJs/article/details/141261751?spm=1001.2014.3001.5501**以上内容是最详细的问题发现、分析与解决，这里只用作更正之前的系统源码**

附录

Header.vue

<template>
    <div class="header-container">
        <el-menu :default-active="activeIndex" class="el-menu-demo" mode="horizontal" :ellipsis="false"
            @select="handleSelect" router>
            <el-menu-item index="myBlog">博客</el-menu-item>
            <el-menu-item index="perCenter">博客园</el-menu-item>
            <el-menu-item index="2">草稿箱</el-menu-item>
            <el-menu-item index="3">回收站</el-menu-item>
        </el-menu>
        <div class="avator_div">
            <el-avatar class="avatar" shape="circle" :size="55"
                src="https://n.sinaimg.cn/sinakd20116/96/w2048h2048/20240323/24a7-52a54c327350fe430e27f8b5847a0bf5.jpg"></el-avatar>

        </div>
        <div class="ope">
            <el-button color="#409EFF" link>会员中心</el-button>
            <el-button color="#409EFF" link>消息</el-button>
            <el-button color="#409EFF" link>创作中心</el-button>
            <el-button color="#fc5531" id="publish">发布</el-button>

        </div>
    </div>
</template>

<script>
export default {
    name: 'Header',
    data() {
        return {
            activeIndex: 'myBlog',
        }
    },
    created() {
        this.activeIndex = this.$route.path.substring(1);
    },
    methods: {
        handleSelect(key, keyPath) { }
    },
    watch: {
        $route(to, from) {
            this.activeIndex = to.path.substring(1);
        }
    },
}
</script>
<style>
.el-menu-item {
    font-size: 18px !important;
    font-family: "宋体";
    font-weight: bold;
}

/* .el-menu-item.is-active, */
.el-menu-item,
.el-menu-item:hover {
    color: black !important;
    background-color: transparent !important;
}
</style>
<style lang="scss" scoped>
.header-container {
    min-width: 1325px;
    overflow: hidden;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;

    .el-menu-demo {
        flex-grow: 1;
    }

    .avator_div {
        position: absolute;
        right: calc(5vw + 320px); //这里我将 .ope 的 right 属性设置为 calc(5vw + 320px)，
        //这样 .ope 会定位在距离右侧 5vw 的位置加上额外的 320px 间距。
        top: 0;

        .avatar {
            float: left;
        }
    }

    .ope {
        position: absolute;
        right: 5vw;

        .el-button:hover {
            color: rgb(107, 107, 194);
        }

        #publish {
            color: white;
            width: 100px;
            border-radius: 25px;

        }
    }

}
</style>

** 这里对myBlog.vue即博客页面进行了数据展示样式的优化，此处同步上传了**

myBlog.vue

<template>
    <div class="box">
        <div class="UserInfo">
            <div class="UserImg">
                <img src="../../assets/image/avator.jpg" alt="">
            </div>
            <div class="userTop">
                <div class="uTop">
                    <div class="userName">
                        {{ User.userName }}
                    </div>
                    <!-- <div class="infoManage">
                            <el-button></el-button>
                        </div> -->
                </div>
                <div class="uMiddle">
                    <span>{{ User.totalVisits }}</span>
                    <p>总访问量&emsp;|&emsp;</p>
                    <span>{{ User.original }}</span>
                    <p>原创&emsp;|&emsp;</p>
                    <span>{{ User.ranking }}</span>
                    <p>排名&emsp;|&emsp;</p>
                    <span>{{ User.fans }}</span>
                    <p>粉丝&emsp;&emsp;</p>
                </div>
                <div class="uBottom">
                    <span>IP属地：{{ User.IP }}</span>
                    <span>加入时间：{{ User.joinTime }}</span>
                    <span>博客简介：{{ User.blogInfo }}</span>
                </div>
            </div>
        </div>
        <div class="InfoMsg">
            <div class="leftMenu">

            </div>
            <div class="content">
                <div class="header">
                    <el-tabs v-model="contentTabs" class="demo-tabs" @tab-click="handleClick">
                        <el-tab-pane label="最近" name="first"></el-tab-pane>
                        <el-tab-pane label="文章" name="second"></el-tab-pane>
                        <el-tab-pane label="资源" name="third"></el-tab-pane>
                        <el-tab-pane label="问答" name="fourth"></el-tab-pane>
                        <el-tab-pane label="帖子" name="fifth"></el-tab-pane>
                        <el-tab-pane label="视频" name="sixth"></el-tab-pane>
                        <el-tab-pane label="关注/订阅/互动" name="seventh"></el-tab-pane>
                        <el-tab-pane label="收藏" name="eighth"></el-tab-pane>
                    </el-tabs>
                    <el-form v-model="queryParams">
                        <el-input type="text" v-model="queryParams.title" placeholder="搜TA的内容" />
                    </el-form>
                </div>
                <div class="body">

                </div>
            </div>
        </div>
    </div>
</template>
<script>
import { ref } from 'vue'
export default {
    data() {
        return {
            contentTabs: ref("first"),
            queryParams: {
                title: ""
            },
            User: {
                userName: "法外狂徒张三",
                totalVisits: 18307,
                original: 543,
                ranking: 2343,
                fans: 2983431,
                IP: "北京市",
                joinTime: "2021-01-01",
                blogInfo: "我是一个程序员"
            }
        }
    },
}
</script>
<style>
.el-tabs__item {
    font-size: 17px !important;

}
</style>
<style lang="scss" scoped>
.box {
    width: 100%;
    height: auto;
    margin-top: 50px;

    .UserInfo {
        width: 100%;
        height: 138px;
        display: flex;
        flex-direction: row;
        border-bottom: 10px solid black;

        .UserImg {
            display: flex;
            width: 118px;
            height: 118px;
            margin: -40px 0 0 48px;
            border-radius: 50%;
            border: 5px solid rgb(240, 240, 242);

            img {
                min-height: 118px;
                min-width: 118px;
                border-radius: 100%;
            }
        }

        .userTop {
            width: 90%;
            height: 140px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            overflow: hidden;

            .uTop {
                width: 100%;
                height: 40%;

                .userName {
                    width: 30%;
                    height: 100%;
                    font-size: 30px;
                    display: flex;
                    justify-content: flex-start;
                    align-items: flex-end;
                    padding-left: 20px;

                }
            }

            .uMiddle,
            .uBottom {
                width: 100%;
                height: 25%;
                display: flex;

                p {
                    margin: 10px 0 10px 10px;
                    font-size: 14px;
                }

                span {
                    width: auto;
                    display: block;
                    padding: 0 0 0 10px;
                    font-size: 25px;
                    // font-weight: bold;
                }

                span:nth-child(1) {
                    margin-left: 12px;
                }
            }

            .uBottom {
                display: flex;
                flex-direction: row;
                justify-content: flex-start;
                align-items: flex-end;
            }

            .uBottom span {
                font-size: 14px;
                margin-right: 100px;
            }
        }
    }

    .InfoMsg {
        width: 100%;
        min-height: calc(100vh - 160px);
        display: flex;
        overflow: hidden;

        .leftMenu {
            min-width: 300px;
            max-height: 648px;

        }

        .content {
            width: auto;
            height: auto;
            border-left: 10px solid black;

            .header {
                width: 100%;
                display: flex;
                padding: 0 15px 0 25px;

                .demo-tabs {
                    width: 700px;
                    height: 100%;
                    padding-left: 20px;

                    ::v-deep .el-tabs__nav-wrap::after {
                        background-color: white;
                    }
                }

                .el-form {
                    width: 300px;
                    display: flex;
                    justify-content: flex-end;
                    align-items: flex-start;
                    padding: 5px 30px 0 0;

                    .el-input {
                        font-size: 17px;
                        width: 170px;

                    }
                }
            }

            .body {
                width: 100%;
                max-height: 900px;
                overflow-y: scroll;
            }

            .body::-webkit-scrollbar {
                width: 1px;
                height: 1px;
            }

            .body::-webkit-scrollbar-track {
                border-radius: 0;
                box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.1);
                background: black;
            }

            .body::-webkit-scrollbar-thumb {
                border-radius: 10px;
                box-shadow: inset 0 0 5px rgba(27, 190, 208, 0.7);
                background: white;
            }

        }
    }

}
</style>

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