CUD表单验证+增删改查

主要内容

1.后台数据接口准备
增删改接口

2.Dialog弹出框

2.1 基本结构

 <el-dialog :title="title" :visible.sync="dialogFormVisible" @close="dialogClose"><!-- form表单 --><el-form :label-position="labelPosition" :model="bookForm" :rules="rules" ref="bookForm">...</el-form></el-dialog>

注1：隐藏显示设置，通过Vue实例对象中的dialogFormVisible="true|false"来控制dialog显示隐藏
:visible.sync=“dialogFormVisible”

注2：通过close或closed事件，在关闭dialog弹出框时清空form表单数据和验证信息；
@close=“dialogClose”

3.表单

3.1 基本结构

...

注1：:label-position设置表单对齐方式
注2：设置表单元素属性双向绑定的对象属性名称

   data: function() {return {bookForm: {id: null,bookname: null,price: '',booktype: null}};}

3.2 表单验证

  <el-form :model="bookForm" :rules="rules" ref="bookForm">...</el-form>

注1：:rules="rules"表单验证定义，只需要通过 rules 属性传入约定的验证规则

   //将el-form-item的prop属性设置为需校验的字段名即可,如下：<el-form-item label="书本名称" prop="bookname" :label-width="formLabelWidth"><el-input v-model="bookForm.bookname" autocomplete="off"></el-input></el-form-item>//在Vue实例的data属性中定义表单验证规则，如下：rules: {bookname: [{required: true,message: '请输入书本名称！',trigger: 'blur'},{min: 3,max: 6,message: '长度必须在3-6个字符之间',trigger: 'blur'}],...}

注2：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3：清空表单验证信息

   this.$refs[formName].resetFields();补充说明：formName是指<el-form ref="bookForm">中定义的ref属性名

注4：表单重置时必须先清空表单验证信息，再清空表单数据信息

   //通过form表单的ref属性来清空表单验证信息this.$refs['bookForm'].resetFields();//清空上一次表单的数据信息this.bookForm.id = null;this.bookForm.bookname = null;this.bookForm.price = null;this.bookForm.booktype = null;

2.1 新增

在事件中设置dialogFormVisible="true"即可打开dialog弹出框

2.2 添加修改/删除按钮

2.3 在上使用特殊的slot-scope 特性，可以接收传递给插槽的prop

slot-scope:类似将每一行的row对象封装到槽中，之后直接从scope中获取row对象信息和行索引index信息即可

代码部分

<!-- 编辑窗体 --><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>

加rules的验证

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'}]}

新增页面

<template><div><!-- 搜索框 --><el-form :inline="true" :model="formInline"><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" @click="search">查询</el-button><el-button size="small" type="primary" @click="handleAdd">新增</el-button></el-form-item></el-form><!-- 表格数据 --><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 prop="id" label="文章id" min-width="1"></el-table-column><el-table-column prop="title" label="文章标题" min-width="2"></el-table-column><el-table-column prop="body" label="文章内容" min-width="3"></el-table-column><el-table-column label="操作" min-width="2"><template slot-scope="scope"><el-button size="mini"  @click="handleEdit(scope.$index, scope.row)">编辑</el-button><el-button size="mini"  type="danger" @click="handleDelete(scope.$index, scope.row)">删除</el-button></template></el-table-column></el-table><!-- 分页条current-page=传输当前页page-sizes=传输的页码--><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><!-- 编辑窗体 --><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></div>
</template><script>export default {data() {return {listData: [],formInline: {page: 1,rows: 10,title: ''},total: 0,editForm: {id: 0,title: '',body: ''},/* 是否打开窗体，默认关闭 */editFormVisible: false,title: '',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: {doSearch(params) {let url = this.axios.urls.SYSTEM_ARTICLE_LISTthis.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);});},handleSizeChange(rows) {console.log("页大小发生改变" + rows)this.formInline.page = 1;this.formInline.rows = rows;this.search();},handleCurrentChange(page) {console.log("当前页发生改变" + page)this.formInline.page = page;this.search();},search() {this.doSearch(this.formInline);},closeDialog() {},submitForm(formName) {/* 表单验证 */this.$refs[formName].validate((valid) => {if (valid) {//移交后台数据let url;/* 判断调用新增或修改方法 */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) => {console.log(response);//操作成功后关闭框,并自动刷新this.clearData();  this.search();}).catch(function(error) {console.log(error);});      } else {console.log('error submit!!');return false;}});},/* 新增 */handleAdd() {this.clearData();this.editFormVisible = true;this.title = "新增文章"},/* 修改 */handleEdit(index,row){this.editFormVisible = true;this.title = "编辑文章";this.editForm.id=row.id;this.editForm.title=row.title;this.editForm.body=row.body;},/* 删除 */handleDelete(index,row){let url = this.axios.urls.SYSTEM_ARTICLE_DELthis.axios.post(url, {id:row.id}).then((response) => {console.log(response);alert('删除成功');//操作成功后关闭框,并自动刷新this.clearData();this.search();}).catch(function(error) {console.log(error);});},/* 清空数据 */clearData(){this.editFormVisible = false;this.title = "";this.editForm.id=0;this.editForm.title='';this.editForm.body='';}},created() {this.doSearch({});}}
</script><style>
</style>