1. 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
<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: { title: [{ required: true, message: '请输入文章标题', trigger: 'blur' }, { min: 3, max: 5, message: '文章标题长度在 3 到 5 个字符', trigger: 'blur' } ], body: [{ required: true, message: '请输入文章内容', trigger: 'blur' }] <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="输入部门名称"></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> <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> <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> <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: '' }, editFormVisible: false, title: '', rules: { title: [{ required: true, message: '请输入文章标题', trigger: 'blur' }, { min: 3, max: 5, message: '文章标题长度在 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_LIST; this.axios.post(url, params).then((response) => { this.listData = response.data.result; this.total = response.data.pageBean.total; console.log(response); }).catch(function(error) { console.log(error); }); }, handleSizeChange(rows) { this.formInline.page = 1; this.formInline.rows = rows; this.search(); }, handleCurrentChange(page) { this.formInline.page = page; this.search(); }, search() { this.doSearch(this.formInline); }, closeDialog() { }, 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) => { console.log(response); this.clearData(); this.search(); }).catch(function(error) { console.log(error); }); } else { console.log('error submit!!'); return false; } }); }, handleAdd() { this.clearData(); this.editFormVisible = true; this.title = '新增文章'; }, 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; }, deleteUser(index,row){ let url = this.axios.urls.SYSTEM_ARTICLE_DEL; this.axios.post(url,{id:row.id}).then((response) => { console.log(response); this.clearData(); this.search(); }).catch(function(error) { console.log(error); }); }, clearData(){ this.editFormVisible = false; this.title=''; this.editForm.id=0; this.editForm.title=''; this.editForm.body=''; } }, created() { this.doSearch({}); } } </script> <style> </style> 
来源：博客园
作者：sosos
链接：https://www.cnblogs.com/ztbk/p/11455102.html