spa

• 表单验证
• 增删改功能实现

element官网学习组件
在上篇SPA项目开发之动态树+数据表格+分页的基础上再次学习

表单验证

Form组件提供了表单验证的功能，只需要通过 rules 属性传入约定的验证规则，
并将Form-Item的prop属性设置为需校验的字段名即可

<!-- 编辑界面 -->
		<el-dialog :title="title" :visible.sync="editFormVisible" width="30%" @before-close="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="请输入文章内容"></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>

rules提交的是表单校验的规则

注1：有多个表单，怎么在提交进行区分？
我们在rules这里写了对表单的验证规则，但是我们如何在methods里进行指定的表单进行认证，
所以我们一开始就在el-form里写了 ref=“ruleForm”，我们在methods里就可以用
注2：清空表单验证信息
this.$refs[formName].resetFields();

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="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="handleAdd()">添加</el-button>
			</el-form-item>
		</el-form>
		<!--列表-->
		<el-table size="small" :data="listData" style="width: 100%;">
			<el-table-column align="center" type="selection" min-width="1">
			</el-table-column>
			<el-table-column sortable prop="id" label="文章ID" min-width="1">
			</el-table-column>
			<el-table-column sortable prop="title" label="文章标题" min-width="3">
			</el-table-column>
			<el-table-column sortable prop="body" label="文章内容" min-width="3">
			</el-table-column>
			<el-table-column align="center" label="操作" min-width="2">
				<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="total">
		</el-pagination>
		<!-- 编辑界面 -->
		<el-dialog :title="title" :visible.sync="editFormVisible" width="30%">
			<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="请输入文章内容"></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 {
		data() {
			return {
				listData: [],
				formInline: {
					page: 1,
					rows: 10,
					title: ''
				},
				total: 0,
				title: '',
				editFormVisible: false,
				editForm: {
					title: '',
					body: ''
				},
				rules: {
					title: [{
							required: true,
							message: '请输入文章标题',
							trigger: 'blur'
						},
						{
							min: 3,
							max: 5,
							message: '长度在 3 到 5 个字符',
							trigger: 'blur'
						}
					],
					body: [{
						required: true,
						message: '请输入文章内容',
						trigger: 'blur'
					}],

				}
			};
		},
		methods: {
			handleSizeChange(rows) { //页大小发生改变触发
				console.log(rows)
				this.formInline.page = 1;
				this.formInline.rows = rows;
				this.search();
			},
			handleCurrentChange(page) { //当前页码发生改变触发
				console.log(page)
				this.formInline.page = page;
				this.search();
			},
			doSearch(params) { //为了简便代码将方法封装 一处封装 多处调用
				//拿取表格数据
				let url = this.axios.urls.SYSTEM_ARTICLE_LIST;
				this.axios.post(url, params).then((response) => {
					console.log(response);
					this.listData = response.data.result;
					this.total = response.data.pageBean.total;
				}).catch(function(error) {
					console.log(error);
				});
			},
			search() {
				this.doSearch(this.formInline)
			},
			closeDialog() {

			},
			submitForm(formName) {
				this.$refs[formName].validate((valid) => {
					if (valid) {
						alert('submit!');
					} else {
						console.log('error submit!!');
						return false;
					}
				});
			},
			handleAdd() {
				this.editFormVisible = true;
			},
			handleEdit(index, row) {
				// var row = $("#dg").datagrid("selected");
			},
			deleteUser(index, row) {

			}

		},
		created() {
			this.doSearch();
		}
	}
</script>

<style>

</style>

测试结果：

增删改功能实现

完整代码

<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="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="handleAdd()">添加</el-button>
			</el-form-item>
		</el-form>
		<!--列表-->
		<el-table size="small" :data="listData" border element-loading-text="拼命加载中" style="width: 100%;">
			<el-table-column align="center" type="selection" min-width="1">
			</el-table-column>
			<el-table-column sortable prop="id" label="文章Id" min-width="1">
			</el-table-column>
			<el-table-column sortable prop="title" label="文章标题" min-width="2">
			</el-table-column>
			<el-table-column sortable prop="body" label="文章内容" min-width="4">
			</el-table-column>
			<el-table-column align="center" label="操作" min-width="2">
				<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>
		<!--分页条-->
		<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="total">
		</el-pagination>
		<!-- 编辑界面 -->
		<el-dialog :title="title" :visible.sync="editFormVisible" width="30%">
			<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="请输入文章内容"></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 {
		data() {
			return {
				listData: [],
				formInline: {
					page: 1,
					rows: 10,
					title: ''
				},
				total: 0,
				title: '',
				editFormVisible: false,
				editForm: {
					id: '',
					title: '',
					body: ''
				},
				rules: {
					title: [{
							required: true,
							message: '请输入文章标题',
							trigger: 'blur'
						},
						{
							min: 3,
							max: 5,
							message: '长度在 3 到 5 个字符',
							trigger: 'blur'
						}
					],
					body: [{
						required: true,
						message: '请输入文章内容',
						trigger: 'blur'
					}],
				}
			}
		},
		methods: {
			handleSizeChange(rows) {
				//页大小发生改变触发的事件
				console.log("当前页大小：" + rows);
				this.formInline.page = 1;
				this.formInline.rows = rows;
				this.search();
			},
			handleCurrentChange(page) {
				//当前页页码发生改变触发的事件
				console.log("当前页码：" + page);
				this.formInline.page = page;
				this.search();
			},
			doSearch(params) {
				let url = this.axios.urls.SYSTEM_ARTICLE_LIST;
				this.axios.post(url, params).then((response) => {
					console.log(response);
					this.listData = response.data.result;
					this.total = response.data.pageBean.total;
				}).catch(function(error) {
					console.log(error);
				});
			},
			search() {
				this.doSearch(this.formInline);
			},
			//取消
			closeDialog() {

			},
			//提交
			submitForm(formName) {
				this.$refs[formName].validate((valid) => {
					if (valid) {
						let url;
						if(this.editForm.id==0){
							url=this.axios.urls.SYSTEM_ARTICLE_ADD;
						}else{
							url=this.axios.urls.SYSTEM_ARTICLE_EDIT;
						}
						this.axios.post(url,this.editForm).then((response) => {
							this.clearFormData();
							this.search();
						}).catch(function(error) {
							console.log(error);
						});
					} else {
						console.log('error submit!');
						return false;
					}
				});
			},
			//添加
			handleAdd() {
				this.clearFormData();
				this.title='新增文章';
				this.editFormVisible = true;

			},
			//修改
			handleEdit(index, row) {
				this.clearFormData();
				this.title='修改文章';
				this.editFormVisible = true;
				this.editForm.id=row.id;
				this.editForm.title=row.title;
				this.editForm.body=row.body;
			},
			//删除
			deleteUser(index, row) {
				let url=this.axios.urls.SYSTEM_ARTICLE_DEL;
				this.axios.post(url,{id:row.id}).then((response) => {
					this.clearFormData();
					this.search();
				}).catch(function(error) {
					console.log(error);
				});

			},
			//清除数据
			clearFormData(){
				this.editFormVisible = false;
				this.editForm.id=0;
				this.editForm.title='';
				this.editForm.body='';
			}
		},
		created() {
			this.doSearch({});
		}
	}
</script>

<style>

</style>

测试运行：
新增：


修改：


删除：