vue.js 实现分页

Vue.js 分页实现方法

基础分页组件实现

创建一个基础的Pagination组件，接收总页数、当前页等参数，通过v-for渲染页码按钮：

<template>
  <div class="pagination">
    <button @click="prevPage" :disabled="currentPage === 1">上一页</button>
    <button 
      v-for="page in pages" 
      :key="page"
      @click="goToPage(page)"
      :class="{ active: page === currentPage }"
    >
      {{ page }}
    </button>
    <button @click="nextPage" :disabled="currentPage === totalPages">下一页</button>
  </div>
</template>

<script>
export default {
  props: {
    totalItems: Number,
    itemsPerPage: Number,
    currentPage: Number
  },
  computed: {
    totalPages() {
      return Math.ceil(this.totalItems / this.itemsPerPage)
    },
    pages() {
      const range = []
      for (let i = 1; i <= this.totalPages; i++) {
        range.push(i)
      }
      return range
    }
  },
  methods: {
    prevPage() {
      this.$emit('page-changed', this.currentPage - 1)
    },
    nextPage() {
      this.$emit('page-changed', this.currentPage + 1)
    },
    goToPage(page) {
      this.$emit('page-changed', page)
    }
  }
}
</script>

<style>
.pagination button {
  margin: 0 5px;
}
.pagination button.active {
  background-color: #42b983;
  color: white;
}
</style>

在父组件中使用分页

父组件中维护数据列表和分页状态，通过v-model或事件绑定与分页组件交互：

<template>
  <div>
    <ul>
      <li v-for="item in paginatedItems" :key="item.id">
        {{ item.name }}
      </li>
    </ul>
    <Pagination
      :total-items="items.length"
      :items-per-page="itemsPerPage"
      :current-page="currentPage"
      @page-changed="handlePageChange"
    />
  </div>
</template>

<script>
import Pagination from './Pagination.vue'

export default {
  components: { Pagination },
  data() {
    return {
      items: [], // 从API获取的数据
      itemsPerPage: 10,
      currentPage: 1
    }
  },
  computed: {
    paginatedItems() {
      const start = (this.currentPage - 1) * this.itemsPerPage
      const end = start + this.itemsPerPage
      return this.items.slice(start, end)
    }
  },
  methods: {
    handlePageChange(page) {
      this.currentPage = page
    }
  }
}
</script>

高级分页功能

实现更复杂的分页逻辑，如显示省略号、固定显示页码数等：

// 在Pagination组件的computed中替换pages计算属性
pages() {
  const current = this.currentPage
  const last = this.totalPages
  const delta = 2
  const left = current - delta
  const right = current + delta + 1
  const range = []
  const rangeWithDots = []
  let l

  for (let i = 1; i <= last; i++) {
    if (i === 1 || i === last || (i >= left && i < right)) {
      range.push(i)
    }
  }

  range.forEach(i => {
    if (l) {
      if (i - l === 2) {
        rangeWithDots.push(l + 1)
      } else if (i - l !== 1) {
        rangeWithDots.push('...')
      }
    }
    rangeWithDots.push(i)
    l = i
  })

  return rangeWithDots
}

与API集成

结合axios等HTTP客户端实现服务器端分页：

methods: {
  async fetchData(page = 1) {
    try {
      const response = await axios.get('/api/items', {
        params: {
          page,
          per_page: this.itemsPerPage
        }
      })
      this.items = response.data.data
      this.totalItems = response.data.total
    } catch (error) {
      console.error(error)
    }
  },
  handlePageChange(page) {
    this.currentPage = page
    this.fetchData(page)
  }
},
created() {
  this.fetchData()
}

使用第三方库

对于快速实现，可以考虑使用现成的分页库如vuejs-paginate：

npm install vuejs-paginate

<template>
  <paginate
    :page-count="totalPages"
    :click-handler="handlePageChange"
    :prev-text="'<'"
    :next-text="'>'"
    :container-class="'pagination'"
    :page-class="'page-item'"
  />
</template>

<script>
import Paginate from 'vuejs-paginate'
export default {
  components: { Paginate }
}
</script>

这些方法覆盖了从基础到高级的Vue.js分页实现方案，可以根据项目需求选择合适的实现方式。