vue翻页实现

Vue 翻页实现方法

基础分页组件实现

创建分页组件模板，包含页码按钮、上一页/下一页按钮：

<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>

计算总页数和显示页码数组：

<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: {
    goToPage(page) {
      this.$emit('page-changed', page)
    },
    prevPage() {
      if (this.currentPage > 1) {
        this.$emit('page-changed', this.currentPage - 1)
      }
    },
    nextPage() {
      if (this.currentPage < this.totalPages) {
        this.$emit('page-changed', this.currentPage + 1)
      }
    }
  }
}
</script>

与数据列表配合使用

父组件中使用分页组件并处理数据分页：

<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="onPageChange"
    />
  </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: {
    onPageChange(page) {
      this.currentPage = page
    }
  }
}
</script>

高级分页功能实现

添加页码省略和范围限制：

computed: {
  pages() {
    const range = []
    const maxVisible = 5 // 最大显示页码数
    let start = 1
    let end = this.totalPages

    if (this.totalPages > maxVisible) {
      start = Math.max(1, this.currentPage - 2)
      end = Math.min(this.totalPages, this.currentPage + 2)

      if (start > 1) {
        range.push(1)
        if (start > 2) range.push('...')
      }

      for (let i = start; i <= end; i++) {
        range.push(i)
      }

      if (end < this.totalPages) {
        if (end < this.totalPages - 1) range.push('...')
        range.push(this.totalPages)
      }
    } else {
      for (let i = 1; i <= this.totalPages; i++) {
        range.push(i)
      }
    }

    return range
  }
}

与API请求集成

在父组件中添加API请求逻辑：

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

样式优化

添加基本CSS样式：

.pagination {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

.pagination button {
  margin: 0 5px;
  padding: 5px 10px;
  border: 1px solid #ddd;
  background: #fff;
  cursor: pointer;
}

.pagination button.active {
  background: #42b983;
  color: white;
  border-color: #42b983;
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}