在 Vue.js 中实现增删改查功能:创建:使用 v-model 绑定数据,向服务器发送 POST 请求创建新记录。读取:向服务器发送 GET 请求获取数据。更新:使用 v-model 编辑数据,向服务器发送 PUT 请求更新记录。删除:向服务器发送 DELETE 请求删除记录。
Vue 中实现增删改查功能
增删改查(CRUD)是 Web 应用程序中的基本操作,它可以让我们在数据库中创建、读取、更新和删除数据。在 Vue.js 中实现 CRUD 功能相对简单。
创建
创建新记录时,我们将使用 v-model
双向绑定数据并向服务器发出 POST 请求。例如:
<template> <form @submit.prevent="createItem"> <input v-model="newItem.name" /> <button type="submit">Create</button> </form> </template> <script> export default { data() { return { newItem: { name: '' } } }, methods: { createItem() { // 向服务器发送 POST 请求 axios.post('/items', this.newItem).then(() => { // 重新获取数据或执行其他操作 }) } } } </script>
读取
读取数据时,我们将向服务器发出 GET 请求。例如:
<template> <ul> <li v-for="item in items" :key="item.id">{{ item.name }}</li> </ul> </template> <script> export default { data() { return { items: [] } }, mounted() { // 在组件挂载时向服务器发送 GET 请求 axios.get('/items').then((response) => { this.items = response.data }) } } </script>
更新
更新记录时,我们将使用 v-model
编辑数据并向服务器发出 PUT 请求。例如:
<template> <form @submit.prevent="updateItem"> <input v-model="item.name" /> <button type="submit">Update</button> </form> </template> <script> export default { props: ['item'], methods: { updateItem() { // 向服务器发送 PUT 请求 axios.put(`/items/${this.item.id}`, this.item).then(() => { // 重新获取数据或执行其他操作 }) } } } </script>
删除
删除记录时,我们将向服务器发出 DELETE 请求。例如:
<template> <button @click="deleteItem">Delete</button> </template> <script> export default { props: ['item'], methods: { deleteItem() { // 向服务器发送 DELETE 请求 axios.delete(`/items/${this.item.id}`).then(() => { // 重新获取数据或执行其他操作 }) } } } </script>
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