• 路由传值及获取参数,路由跳转,路由检测,this.$route.query和this.$route.params接收参数,HttpGet请求拼接url参数


    配置动态路由参数id:

    routes: [

            // 动态路径参数 以冒号开头

            { path: '/user/:id', component: User }

          ]

    html路由跳转:

    <router-link to="/demo53/8">路径参数跳转</router-link>

    ①不带参数写法:

          <router-link to="home">点我</router-link>

          <router-link v-bind:to="'home'">点我</router-link>

          <router-link :to="'home'">Home</router-link>

          <router-link :to="{ path: 'home' }">Home</router-link>

    ② 带参数写法:

         A: <router-link :to="{ name: 'user', params: { userId: 123 }}">User</router-link>

          批注:路由配置格式:

            { path: '/user/:userId', name: 'user', component: User }

           导航显示:/user/123  

         B: <router-link :to="{ path: 'register', query: { plan: 'private' }}">Register</router-link>

            批注:带查询参数

               导航显示:/register?plan=private

     js中使用的方式:  

        ① this.$router.push('xxx')                                                                  //字符串,这里的字符串是路径path匹配噢,不是router配置里的name

        ② this.$router.push({ path: 'home' })                                             //对象

        ③ this.$router.push({ name: 'user', params: { userId: 123 }})         // 命名的路由 这里会变成 /user/123

        ④ this.$router.push({ path: 'register', query: { plan: 'private' }})       // 带查询参数,变成 /register?plan=private

    vue之this.$route.query和this.$route.params接收参数
    this.$route.query
    A页面传递参数peng=0
    registerInfoThis.$router.push("/hrhi/psninfo/dynamic/" + data.row.pk_psndoc + '?funcode=60070psninfo&peng=0');
    B页面接收参数
    created() {
        this.penga = this.$route.query["peng"];            
      },

    ‘http://localhost:8080/linkParamsQuestion?age=18’

    let age = this.$route.query.age; //问号后面参数会被封装进 this.$route.query;

    this.$route.params
    1、router/index.js
    {
            path:'/mtindex',
            component: mtindex,
            //添加路由
            children:[
                 {
                     path:"/detail",
                     name:'detail',
                     component:guessdetail
                 }
            ]        
    
     },
    
    2、传参数( params相对应的是name query相对应的是path)
    this.$router.push({
    name: ‘detail’, params:{shopid: item.id}
    });
    
    
    3、获取参数
    this.$route.params.shopid
    
    
    4、url的表现形式(url中没带参数)
    http://localhost:8080/#/mtindex
     3.检测路由 
    
      watch:{
        '$route': function (to,from) {
          // 对路由变化作出响应...
        }
      }
    或者
    watch: {
        "$route": "routeChange",
    },
    
    methods: {
        routeChange(){
            console.log(this.$route.path);
        }
        
    }

    在 router-view上加上一个唯一的key,来保证路由切换时都会重新渲染触发钩子了

    <router-view :key="key"></router-view>
    
    computed: {
        key() {
            return this.$route.name !== undefined? this.$route.name + +new Date(): this.$route + +new Date()
        }
     }

    HttpGet请求拼接url参数

        const query = {
          client_id: state.auth.clientID,
          redirect_uri: location.href,
          scope: 'public_repo'
        }
    
        const queryString = Object.keys(query)
          .map(key => `${key}=${encodeURIComponent(query[key] || '')}`)
          .join('&')
    
        return `http://github.com/login/oauth/authorize?${queryString}`
        return vue.$http.get(`https://api.github.com/search/issues?q=${data.keyword}+state:open+repo:${vue.$store.getters.repo}${label}&sort=created&order=desc&page=${data.currentPage}&per_page=${data.pageSize}`, {
          headers: {
            'Accept': 'application/vnd.github.v3.html'
          }
        })

     url参数转json字符串:

    const queryParse = (search = window.location.search) => {
      if (!search) {
        return {}
      } else {
        const queryString = search[0] === '?' ? search.substring(1) : search
        const query = {}
        queryString
          .split('&')
          .forEach(queryStr => {
            const [key, value] = queryStr.split('=')
            if (key) {
              query[decodeURIComponent(key)] = decodeURIComponent(value)
            }
          })
        return query
      }
    }
    
    const queryStringify = query => {
      const queryString = Object.keys(query)
        .map(key => `${key}=${encodeURIComponent(query[key] || '')}`)
        .join('&')
      return queryString
    }

    获取url参数
    //方法封装
    function GetRequest() {
        //获取url中"?"符后的字串
        var url = location.search;
        var theRequest = new Object();
        if (url.indexOf("?") != -1) {
              var str = url.substr(1);
              strs = str.split("&");
              for(var i = 0; i < strs.length; i ++) {
            theRequest[strs[i].split("=")[0]]=decodeURI(strs[i].split("=")[1]);
              }
        }
        return theRequest;
    }
    // 方法调用
    var Request = new Object();
    Request = GetRequest();
    var urlCan = Request['参数名'];
    方法2:
    function getUrlParam(key) {
        // 获取参数
        var url = window.location.search;
        // 正则筛选地址栏
        var reg = new RegExp("(^|&)" + key + "=([^&]*)(&|$)");
        // 匹配目标参数
        var result = url.substr(1).match(reg);
        //返回参数值
        return result ? decodeURIComponent(result[2]) : null;
    }
    //调用
    getUrlParam("参数名");

    参考:https://www.jianshu.com/p/f69fbc7cb06c

    https://www.cnblogs.com/websmile/p/7873601.html      vue-router的用法

    https://blog.csdn.net/zjl199303/article/details/82655576         vue 配置路由 + 用户权限生成动态路由 踩过的那些坑
    https://blog.csdn.net/sangjinchao/article/details/70888259       vue,router-link传参以及参数的使用
    https://blog.csdn.net/wojiaomaxiaoqi/article/details/80688911         vue中this.$router.push路由传参以及获取方法

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  • 原文地址:https://www.cnblogs.com/shy1766IT/p/11070636.html
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