vue分页前台实现

Vue 分页前台实现方法

基础分页组件实现

创建一个基础的Pagination.vue组件，接收当前页码和总页数作为props：

<template>
  <div class="pagination">
    <button 
      @click="changePage(currentPage - 1)" 
      :disabled="currentPage === 1"
    >上一页</button>

    <span v-for="page in pages" :key="page">
      <button 
        @click="changePage(page)"
        :class="{ active: page === currentPage }"
      >{{ page }}</button>
    </span>

    <button 
      @click="changePage(currentPage + 1)" 
      :disabled="currentPage === totalPages"
    >下一页</button>
  </div>
</template>

<script>
export default {
  props: {
    currentPage: {
      type: Number,
      required: true
    },
    totalPages: {
      type: Number,
      required: true
    }
  },
  computed: {
    pages() {
      const range = [];
      for (let i = 1; i <= this.totalPages; i++) {
        range.push(i);
      }
      return range;
    }
  },
  methods: {
    changePage(page) {
      if (page >= 1 && page <= this.totalPages) {
        this.$emit('page-changed', page);
      }
    }
  }
};
</script>

使用分页组件

在父组件中使用分页组件，并处理分页逻辑：

<template>
  <div>
    <!-- 显示分页数据 -->
    <ul>
      <li v-for="item in paginatedData" :key="item.id">
        {{ item.name }}
      </li>
    </ul>

    <!-- 分页组件 -->
    <Pagination 
      :current-page="currentPage" 
      :total-pages="totalPages"
      @page-changed="onPageChange"
    />
  </div>
</template>

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

export default {
  components: {
    Pagination
  },
  data() {
    return {
      allData: [], // 所有数据
      currentPage: 1,
      itemsPerPage: 10
    };
  },
  computed: {
    totalPages() {
      return Math.ceil(this.allData.length / this.itemsPerPage);
    },
    paginatedData() {
      const start = (this.currentPage - 1) * this.itemsPerPage;
      const end = start + this.itemsPerPage;
      return this.allData.slice(start, end);
    }
  },
  methods: {
    onPageChange(page) {
      this.currentPage = page;
    }
  },
  async created() {
    // 获取数据
    this.allData = await fetchData(); // 替换为实际的数据获取方法
  }
};
</script>

高级分页功能

对于大量数据的分页显示，可以添加页码省略功能：

computed: {
  pages() {
    const range = [];
    const maxVisible = 5; // 最多显示的页码数
    let start = 1;
    let end = this.totalPages;

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

      if (end > this.totalPages) {
        end = this.totalPages;
        start = end - maxVisible + 1;
      }
    }

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

    return range;
  }
}

样式优化

添加基础样式使分页组件更美观：

.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;
}

与后端API集成

当需要从后端获取分页数据时：

methods: {
  async fetchPaginatedData(page) {
    try {
      const response = await axios.get('/api/items', {
        params: {
          page,
          per_page: this.itemsPerPage
        }
      });
      this.paginatedData = response.data.items;
      this.totalPages = response.data.total_pages;
    } catch (error) {
      console.error('获取数据失败:', error);
    }
  },
  onPageChange(page) {
    this.currentPage = page;
    this.fetchPaginatedData(page);
  }
}

这些方法提供了从基础到高级的Vue分页实现方案，可以根据实际需求进行调整和扩展。