• SPA项目开发之CRUD+表单验证


    一、表单验证

    1.1 出现表单组件 el-form

    这里我们参照官网可以去form组件中kopi,然后进行对应的值改变

    
    		<el-dialog :title="title" :visible.sync="editFormVisible" width="30%" @click="closeDialog">
    			<el-form label-width="120px" :model="editForm" :rules="rules" ref="editForm">
    				<el-form-item label="文章标题" prop="title">
    					<el-input size="small" v-model="editForm.title" auto-complete="off" placeholder="请输入文章标题">el-input>
    				el-form-item>
    				<el-form-item label="文章内容" prop="body">
    					<el-input size="small" v-model="editForm.body" auto-complete="off" placeholder="请输入内容">el-input>
    				el-form-item>
    			el-form>
    			<div slot="footer" class="dialog-footer">
    				<el-button size="small" @click="closeDialog">取消el-button>
    				<el-button size="small" type="primary" class="title" @click="submitForm('editForm')">保存el-button>
    			div>
    		el-dialog>
    
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    1.2 通过点击 新增/编辑将表单对应窗口弹出

    通过写方法让其对应的表单显示出来

    			handleEdit() {
    				//展示新增文章的表单窗体
    				this.editFormVisible = true;
    			}
    
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    1.3 给表单设置规则 rules

    给表单增加校验规则

    rules: {
    					title: [{
    							required: true,
    							message: '请输入文章标题',
    							trigger: 'blur'
    						},
    						{
    							min: 5,
    							max: 10,
    							message: '长度在 5 到 10 个字符',
    							trigger: 'blur'
    						}
    					],
    					body: [{
    						required: true,
    						message: '请输入文章内容',
    						trigger: 'blur'
    					}],
    				}
    
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    1.4 当表单提交时要校验规则

    submitForm(formName) {
    				this.$refs[formName].validate((valid) => {
    					if (valid) {
    						alert('submit!');
    					} else {
    						console.log('error submit!!');
    						return false;
    					}
    				});
    
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    最后总页面
    Articles.vue

    <template>
    	<div>
    		
    		<el-form :inline="true" :model="formInline" class="user-search">
    			<el-form-item label="搜索:">
    				<el-input size="small" v-model="formInline.title" placeholder="请输入文章标题">el-input>
    			el-form-item>
    			<el-form-item>
    				<el-button size="small" type="primary" icon="el-icon-search" @click="search">搜索el-button>
    				<el-button size="small" type="primary" icon="el-icon-plus" @click="handleEdit()">添加el-button>
    			el-form-item>
    		el-form>
    		<el-table size="small" :data="listData" highlight-current-row style="width: 100%;">
    			<el-table-column align="center" type="selection" width="60">
    			el-table-column>
    			<el-table-column sortable prop="id" label="文章id" width="300">
    			el-table-column>
    			<el-table-column sortable prop="title" label="文章标题" width="300">
    			el-table-column>
    			<el-table-column sortable prop="body" label="文章内容" width="300">
    			el-table-column>
    			<el-table-column align="center" label="操作" min-width="300">
    				<template slot-scope="scope">
    					<el-button size="mini" @click="handleEdit(scope.$index, scope.row)">编辑el-button>
    					<el-button size="mini" type="danger" @click="deleteUser(scope.$index, scope.row)">删除el-button>
    				template>
    			el-table-column>
    		el-table>
    		
    		<el-pagination style="margin-top: 20px;" @size-change="handleSizeChange" @current-change="handleCurrentChange"
    		 :current-page="formInline.page" :page-sizes="[10, 20, 30, 50]" :page-size="100" layout="total, sizes, prev, pager, next, jumper"
    		 :total="formInline.total">
    		el-pagination>
    		
    		<el-dialog :title="title" :visible.sync="editFormVisible" width="30%" @click="closeDialog">
    			<el-form label-width="120px" :model="editForm" :rules="rules" ref="editForm">
    				<el-form-item label="文章标题" prop="title">
    					<el-input size="small" v-model="editForm.title" auto-complete="off" placeholder="请输入文章标题">el-input>
    				el-form-item>
    				<el-form-item label="文章内容" prop="body">
    					<el-input size="small" v-model="editForm.body" auto-complete="off" placeholder="请输入内容">el-input>
    				el-form-item>
    			el-form>
    			<div slot="footer" class="dialog-footer">
    				<el-button size="small" @click="closeDialog">取消el-button>
    				<el-button size="small" type="primary" class="title" @click="submitForm('editForm')">保存el-button>
    			div>
    		el-dialog>
    	div>
    template>
    
    <script>
    	export default {
    		name: 'Articles',
    		data() {
    			return {
    				title: '',
    				editFormVisible: false, // 可见
    				editForm: {
    					title: '',
    					body: ''
    				},
    				rules: {
    					title: [{
    							required: true,
    							message: '请输入文章标题',
    							trigger: 'blur'
    						},
    						{
    							min: 5,
    							max: 10,
    							message: '长度在 5 到 10 个字符',
    							trigger: 'blur'
    						}
    					],
    					body: [{
    						required: true,
    						message: '请输入文章内容',
    						trigger: 'blur'
    					}],
    				},
    				listData: [],
    				formInline: {
    					page: 1,
    					total: 10,
    					title: ''
    				}
    			};
    		},
    		methods: {
    			handleEdit() {
    				//展示新增文章的表单窗体
    				this.editFormVisible = true;
    			},
    			deleteUser() {
    
    			},
    			handleSizeChange(rows) {
    				console.log("页面大小发送改变");
    				this.formInline.page = 1;
    				this.formInline.rows = rows;
    				this.search();
    			},
    			handleCurrentChange(page) {
    				console.log("当前页发送改变");
    				this.formInline.page = page;
    				this.search();
    			},
    			//代码复用
    			doSearch(param) {
    				let url = this.axios.urls.SYSTEM_ARTICLE_LIST;
    				this.axios.post(url, param)
    					.then(resp => { //箭头函数 jdk8的语法
    						//成功的回调函数
    						console.log(resp);
    						this.listData = resp.data.result;
    						this.formInline = resp.data.pageBean;
    					})
    					.catch(function() { // 代表失败
    
    					});
    			},
    			search() {
    				//按照条件进行查询
    				this.doSearch(this.formInline);
    			},
    			closeDialog() {
    				//关闭窗体
    			},
    			submitForm(formName) {
    				this.$refs[formName].validate((valid) => {
    					if (valid) {
    						alert('submit!');
    					} else {
    						console.log('error submit!!');
    						return false;
    					}
    				});
    			}
    		},
    		//钩子函数
    		created() {
    			this.doSearch({});
    		}
    	}
    script>
    
    <style>
    
    style>
    
    
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    效果
    在这里插入图片描述在这里插入图片描述在这里插入图片描述

    存在问题:有缓存,而且后期我们编辑和增加弹出的是同一个窗口,要进行判断(后面CRUD优化)

    二、CRUD

    2.1 保障编辑窗体正常弹出

    因为我们编辑和新增用的是同一个方法,所有我们要再其进行判断弹框,因为我们有缓存问题,所有我们还要新增一个清除缓存的方法,在关闭窗体调用

    Articles.vue

    <template>
    	<div>
    		
    		<el-form :inline="true" :model="formInline" class="user-search">
    			<el-form-item label="搜索:">
    				<el-input size="small" v-model="formInline.title" placeholder="请输入文章标题">el-input>
    			el-form-item>
    			<el-form-item>
    				<el-button size="small" type="primary" icon="el-icon-search" @click="search">搜索el-button>
    				<el-button size="small" type="primary" icon="el-icon-plus" @click="handleEdit()">添加el-button>
    			el-form-item>
    		el-form>
    		<el-table size="small" :data="listData" highlight-current-row style="width: 100%;">
    			<el-table-column align="center" type="selection" width="60">
    			el-table-column>
    			<el-table-column sortable prop="id" label="文章id" width="300">
    			el-table-column>
    			<el-table-column sortable prop="title" label="文章标题" width="300">
    			el-table-column>
    			<el-table-column sortable prop="body" label="文章内容" width="300">
    			el-table-column>
    			<el-table-column align="center" label="操作" min-width="300">
    				<template slot-scope="scope">
    					<el-button size="mini" @click="handleEdit(scope.$index, scope.row)">编辑el-button>
    					<el-button size="mini" type="danger" @click="deleteUser(scope.$index, scope.row)">删除el-button>
    				template>
    			el-table-column>
    		el-table>
    		
    		<el-pagination style="margin-top: 20px;" @size-change="handleSizeChange" @current-change="handleCurrentChange"
    		 :current-page="formInline.page" :page-sizes="[10, 20, 30, 50]" :page-size="100" layout="total, sizes, prev, pager, next, jumper"
    		 :total="formInline.total">
    		el-pagination>
    		
    		<el-dialog :title="title" :visible.sync="editFormVisible" width="30%" @click="closeDialog">
    			<el-form label-width="120px" :model="editForm" :rules="rules" ref="editForm">
    				<el-form-item label="文章标题" prop="title">
    					<el-input size="small" v-model="editForm.title" auto-complete="off" placeholder="请输入文章标题">el-input>
    				el-form-item>
    				<el-form-item label="文章内容" prop="body">
    					<el-input size="small" v-model="editForm.body" auto-complete="off" placeholder="请输入内容">el-input>
    				el-form-item>
    			el-form>
    			<div slot="footer" class="dialog-footer">
    				<el-button size="small" @click="closeDialog">取消el-button>
    				<el-button size="small" type="primary" class="title" @click="submitForm('editForm')">保存el-button>
    			div>
    		el-dialog>
    	div>
    template>
    
    <script>
    	export default {
    		name: 'Articles',
    		data() {
    			return {
    				title: '',
    				editFormVisible: false, // 可见
    				editForm: {
    					title: '',
    					body: '',
    					id:''
    				},
    				rules: {
    					title: [{
    							required: true,
    							message: '请输入文章标题',
    							trigger: 'blur'
    						},
    						{
    							min: 5,
    							max: 10,
    							message: '长度在 5 到 10 个字符',
    							trigger: 'blur'
    						}
    					],
    					body: [{
    						required: true,
    						message: '请输入文章内容',
    						trigger: 'blur'
    					}],
    				},
    				listData: [],
    				formInline: {
    					page: 1,
    					total: 10,
    					title: ''
    				}
    			};
    		},
    		methods: {
    			handleEdit(index,row) {
    				//展示新增文章的表单窗体
    				this.editFormVisible = true;
    				if(row){
    					//编辑
    					this.title = '编辑窗体';
    					this.editForm.id = row.id;
    					this.editForm.title = row.title;
    					this.editForm.body = row.body;
    				}
    				else{
    					//新增
    					this.title = '新增窗体';
    				}
    				
    			},
    			deleteUser() {
    
    			},
    			handleSizeChange(rows) {
    				console.log("页面大小发送改变");
    				this.formInline.page = 1;
    				this.formInline.rows = rows;
    				this.search();
    			},
    			handleCurrentChange(page) {
    				console.log("当前页发送改变");
    				this.formInline.page = page;
    				this.search();
    			},
    			//代码复用
    			doSearch(param) {
    				let url = this.axios.urls.SYSTEM_ARTICLE_LIST;
    				this.axios.post(url, param)
    					.then(resp => { //箭头函数 jdk8的语法
    						//成功的回调函数
    						console.log(resp);
    						this.listData = resp.data.result;
    						this.formInline = resp.data.pageBean;
    					})
    					.catch(function() { // 代表失败
    
    					});
    			},
    			search() {
    				//按照条件进行查询
    				this.doSearch(this.formInline);
    			},
    			closeDialog() {
    				//关闭窗体
    				this.clearData();
    			},
    			clearData(){
    				//清除编辑窗体的缓存数据
    				this.editForm.title = '';
    				this.editForm.body = '';
    				this.editForm.id = '';
    				//当点击取消时,我们就
    				this.title = '';
    				this.editFormVisible = false;
    				
    			},
    			submitForm(formName) {
    				this.$refs[formName].validate((valid) => {
    					if (valid) {
    						//进行增加
    						let url = this.axios.urls.SYSTEM_ARTICLE_ADD;
    					} else {
    						console.log('error submit!!');
    						return false;
    					}
    				});
    			}
    		},
    		//钩子函数
    		created() {
    			this.doSearch({});
    		}
    	}
    script>
    
    <style>
    
    style>
    
    
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    效果
    在这里插入图片描述在这里插入图片描述
    在这里插入图片描述

    2.2 增加修改

    这里因为我们用的是同一个方法,所有我们通过判断id来看是删除还是修改,在通过axios调用接口来完成

    <template>
    	<div>
    		
    		<el-form :inline="true" :model="formInline" class="user-search">
    			<el-form-item label="搜索:">
    				<el-input size="small" v-model="formInline.title" placeholder="请输入文章标题">el-input>
    			el-form-item>
    			<el-form-item>
    				<el-button size="small" type="primary" icon="el-icon-search" @click="search">搜索el-button>
    				<el-button size="small" type="primary" icon="el-icon-plus" @click="handleEdit()">添加el-button>
    			el-form-item>
    		el-form>
    		<el-table size="small" :data="listData" highlight-current-row style="width: 100%;">
    			<el-table-column align="center" type="selection" width="60">
    			el-table-column>
    			<el-table-column sortable prop="id" label="文章id" width="300">
    			el-table-column>
    			<el-table-column sortable prop="title" label="文章标题" width="300">
    			el-table-column>
    			<el-table-column sortable prop="body" label="文章内容" width="300">
    			el-table-column>
    			<el-table-column align="center" label="操作" min-width="300">
    				<template slot-scope="scope">
    					<el-button size="mini" @click="handleEdit(scope.$index, scope.row)">编辑el-button>
    					<el-button size="mini" type="danger" @click="deleteUser(scope.$index, scope.row)">删除el-button>
    				template>
    			el-table-column>
    		el-table>
    		
    		<el-pagination style="margin-top: 20px;" @size-change="handleSizeChange" @current-change="handleCurrentChange"
    		 :current-page="formInline.page" :page-sizes="[10, 20, 30, 50]" :page-size="100" layout="total, sizes, prev, pager, next, jumper"
    		 :total="formInline.total">
    		el-pagination>
    		
    		<el-dialog :title="title" :visible.sync="editFormVisible" width="30%" @click="closeDialog">
    			<el-form label-width="120px" :model="editForm" :rules="rules" ref="editForm">
    				<el-form-item label="文章标题" prop="title">
    					<el-input size="small" v-model="editForm.title" auto-complete="off" placeholder="请输入文章标题">el-input>
    				el-form-item>
    				<el-form-item label="文章内容" prop="body">
    					<el-input size="small" v-model="editForm.body" auto-complete="off" placeholder="请输入内容">el-input>
    				el-form-item>
    			el-form>
    			<div slot="footer" class="dialog-footer">
    				<el-button size="small" @click="closeDialog">取消el-button>
    				<el-button size="small" type="primary" class="title" @click="submitForm('editForm')">保存el-button>
    			div>
    		el-dialog>
    	div>
    template>
    
    <script>
    	export default {
    		name: 'Articles',
    		data() {
    			return {
    				title: '',
    				editFormVisible: false, // 可见
    				editForm: {
    					title: '',
    					body: '',
    					id: ''
    				},
    				rules: {
    					title: [{
    							required: true,
    							message: '请输入文章标题',
    							trigger: 'blur'
    						},
    						{
    							min: 5,
    							max: 10,
    							message: '长度在 5 到 10 个字符',
    							trigger: 'blur'
    						}
    					],
    					body: [{
    						required: true,
    						message: '请输入文章内容',
    						trigger: 'blur'
    					}],
    				},
    				listData: [],
    				formInline: {
    					page: 1,
    					total: 10,
    					title: ''
    				}
    			};
    		},
    		methods: {
    			handleEdit(index, row) {
    				//展示新增文章的表单窗体
    				this.editFormVisible = true;
    				if (row) {
    					//编辑
    					this.title = '编辑窗体';
    					this.editForm.id = row.id;
    					this.editForm.title = row.title;
    					this.editForm.body = row.body;
    				} else {
    					//新增
    					this.title = '新增窗体';
    				}
    
    			},
    			deleteUser() {
    
    			},
    			handleSizeChange(rows) {
    				console.log("页面大小发送改变");
    				this.formInline.page = 1;
    				this.formInline.rows = rows;
    				this.search();
    			},
    			handleCurrentChange(page) {
    				console.log("当前页发送改变");
    				this.formInline.page = page;
    				this.search();
    			},
    			//代码复用
    			doSearch(param) {
    				let url = this.axios.urls.SYSTEM_ARTICLE_LIST;
    				this.axios.post(url, param)
    					.then(resp => { //箭头函数 jdk8的语法
    						//成功的回调函数
    						console.log(resp);
    						this.listData = resp.data.result;
    						this.formInline = resp.data.pageBean;
    					})
    					.catch(function() { // 代表失败
    
    					});
    			},
    			search() {
    				//按照条件进行查询
    				this.doSearch(this.formInline);
    			},
    			closeDialog() {
    				//关闭窗体
    				this.clearData();
    			},
    			clearData() {
    				//清除编辑窗体的缓存数据
    				this.editForm.title = '';
    				this.editForm.body = '';
    				this.editForm.id = '';
    				//当点击取消时,我们就
    				this.title = '';
    				this.editFormVisible = false;
    
    			},
    			submitForm(formName) {
    				this.$refs[formName].validate((valid) => {
    					if (valid) {
    						//进行增加
    						let url;
    						//
    						if (this.editForm.id == 0) {
    							//新增
    							url = this.axios.urls.SYSTEM_ARTICLE_ADD;
    						} else {
    							//编辑
    							url = this.axios.urls.SYSTEM_ARTICLE_EDIT;
    						}
    						this.axios.post(url, this.editForm).then(t => {
    							//新增成功后 1.关闭窗体-清空数据  2.重新查询
    							this.$message({
    								message: t.data.msg,
    								type: 'success'
    							});
    							this.clearData(); //关闭清空
    							this.search(); //查询
    						}).catch(e => {
    
    						})
    					} else {
    						console.log('error submit!!');
    						return false;
    					}
    				});
    			}
    		},
    		//钩子函数
    		created() {
    			this.doSearch({});
    		}
    	}
    script>
    
    <style>
    
    style>
    
    
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    效果
    在这里插入图片描述点击新增
    在这里插入图片描述点击编辑
    在这里插入图片描述

    2.3 删除

    注意删除只要传入相对应的id即可

    删除方法

    在deleteUser(index, row) {
    				this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
    					confirmButtonText: '确定',
    					cancelButtonText: '取消',
    					type: 'warning'
    				}).then(() => {
    					
    					let url = this.axios.urls.SYSTEM_ARTICLE_DEL;
    
    					this.axios.post(url, {id:row.id}).then(t => {
    						this.$message({
    							type: 'success',
    							message: '删除成功!'
    						});
    						this.clearData(); //关闭清空
    						this.search(); //查询
    					}).catch(e => {
    
    					})
    
    				}).catch(() => {
    					this.$message({
    						type: 'info',
    						message: '已取消删除'
    					});
    				});
    			},
    
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    点击删除
    在这里插入图片描述在这里插入图片描述

    在这里插入图片描述

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  • 原文地址:https://blog.csdn.net/qq_63531917/article/details/126882020