spring boot + vue + element-ui全栈开发入门——前端编辑数据对话框

[b] 需求[/b]

1.点击“添加”按钮，弹出录入数据的对话框窗口，并录入数据，如果数据有误则不允许提交。数据填写完毕后，点击“保存”按钮，调用http协议提交数据，提交完毕刷新页面数据。点击“取消”按钮关闭对话框。

2.点击列表中的“修改”按钮，弹出数据修改对话框窗口，功能同上。

3.点击列表中的“删除”按钮，弹出删除数据的询问窗口，功能以此类推。

[b]一、添加[/b]

在“src\mock\member.js”中，增加模拟保存数据的方法：

adapters.push(
(mockAdapter) => mockAdapter.onPost('/api/member/save').reply(req => {
let promise = new Promise((resolve, reject) => {
let data = req.data ? JSON.parse(req.data) : {}
let result = {}
if (data.name) {
result.success = true
result.message = '保存成功'
} else {
result.success = false
result.message = '姓名是必填参数'
}

setTimeout(() => {
resolve([200, result])
}, 2000)
})
return promise
})
)

在src\pages\Member.vue中编写添加相关的代码：

对话框的布局：

<!--对话框-->
<el-dialog :title="form && form.id ? '编辑' : '新增' " :visible.sync="formVisible" :close-on-click-modal="false">
<el-form :model="form" label-width="100px" :rules="rules" ref="form">
<el-form-item label="姓名" prop="name">
<el-input v-model="form.name" />
</el-form-item>
<el-form-item label="性别" prop="sex">
<el-radio-group v-model="form.sex">
<el-radio :label="1">男</el-radio>
<el-radio :label="2">女</el-radio>
</el-radio-group>
</el-form-item>
</el-form>
<div slot="footer" class="dialog-footer">
<el-button @click.native="formVisible = false">取消</el-button>
<el-button type="primary" @click.native="handleSubmit" :loading="formLoading">提交</el-button>
</div>
</el-dialog>

保存按钮的代码：

let handleSubmit = function() {
if (this.formLoading)
return

this.$refs.form.validate(valid => {
if (!valid)
return

this.formLoading = true

//调用http协议
this.$axios.post('/api/member/save', this.form).then(res => {
this.formLoading = false
if (!res.data.success) {
this.$message({
showClose: true,
message: res.data.message,
type: 'error'
});
return
}
this.$message({
type: 'success',
message: '保存成功!'
})

//重新载入数据
this.page = 1
this.getRows()
this.formVisible = false
}).catch(e => this.formLoading = false)
})
}

[b]二、修改[/b]

如果完成添加功能，那么修改的功能就非常简单，只需要把handleEdit方法修改为：

let handleEdit = function(index, row) {
this.form = Object.assign({}, row)
this.formVisible = true
}

注意的是：千万不要直接给form赋row的值，因为这样做的话，如果修改了数据但没有保存，关闭窗口的时候，列表中的数据会被误修改。Object.assign是克隆row的值，这样，form对象就是一个副本，怎么修改都没问题。

[b]三、删除[/b]

在“src\mock\member.js”中，增加模拟删除数据的方法：

adapters.push(
(mockAdapter) => mockAdapter.onGet(/\/api\/member\/remove\/\w+/).reply(req => {
let promise = new Promise((resolve, reject) => {
let result = {
success: true,
message: '删除成功'
}
setTimeout(() => {
resolve([200, result])
}, 2000)
})
return promise
})
)

handleDelete的方法修改为：

let handleDelete = function(index, row) {
if (this.pageLoading)
return

this.$confirm('此操作将永久删除该数据, 是否继续?', '提示', {
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
}).then(() => {
this.pageLoading = true
this.$axios.get('/api/member/remove/' + row.id).then(res => {
this.pageLoading = false
if (!res.data.success) {
this.$message({
type: 'error',
message: res.data.message
})
return
}
this.$message({
type: 'success',
message: '删除成功!'
})
this.page = 1
this.getRows()
}).catch(e => this.pageLoading = false)
}).catch(e => {})
}

完整的代码如下：

<template>
<section>
<!--工具条-->
<el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
<el-form :inline="true" :model="filters">
<el-form-item>
<el-input v-model="filters.query" placeholder="姓名/手机号等条件" />
</el-form-item>
<el-form-item>
<el-button type="primary" v-on:click="handleQuery" icon="el-icon-search">查询</el-button>
</el-form-item>
<el-form-item>
<el-button type="primary" v-on:click="handleAdd" icon="el-icon-plus">添加</el-button>
</el-form-item>
</el-form>
</el-col>
<el-table :data="rows" style="width: 100%;overflow: auto;" :height="clientHeight" stripe border highlight-current-row v-loading="pageLoading">
<el-table-column label="注册日期" width="180">
<template slot-scope="scope">
<i class="el-icon-time"></i>
<span style="margin-left: 10px">{{ scope.row.date }}</span>
</template>
</el-table-column>
<el-table-column label="姓名" width="180" :show-overflow-tooltip="true">
<template slot-scope="scope">
<el-popover trigger="hover" placement="top">
<p>姓名: {{ scope.row.name }}</p>
<p>住址: {{ scope.row.address }}</p>
<div slot="reference" class="name-wrapper">
<el-tag size="medium">{{ scope.row.name }}</el-tag>
</div>
</el-popover>
</template>
</el-table-column>
<el-table-column prop="sex" label="性别" width="100" align="center" :show-overflow-tooltip="true">
<template slot-scope="scope">
{{scope.row.sex===1?'男':'女'}}
</template>
</el-table-column>
<el-table-column label="操作">
<template slot-scope="scope">
<el-button
size="mini"
type="primary"
@click="handleEdit(scope.$index, scope.row)"><i class="el-icon-edit"></i>编辑</el-button>
<el-button
size="mini"
type="danger"
@click="handleDelete(scope.$index, scope.row)"><i class="el-icon-delete"></i>删除</el-button>
</template>
</el-table-column>
</el-table>
<!--底部-->
<el-col :span="24" class="toolbar">
<el-pagination layout="prev, pager, next" @current-change="handleCurrentChange" :page-size="20" :total="total" style="float:right;">
</el-pagination>
</el-col>

<!--对话框-->
<el-dialog :title="form && form.id ? '编辑' : '新增' " :visible.sync="formVisible" :close-on-click-modal="false">
<el-form :model="form" label-width="100px" :rules="rules" ref="form">
<el-form-item label="姓名" prop="name">
<el-input v-model="form.name" />
</el-form-item>
<el-form-item label="性别" prop="sex">
<el-radio-group v-model="form.sex">
<el-radio :label="1">男</el-radio>
<el-radio :label="2">女</el-radio>
</el-radio-group>
</el-form-item>
</el-form>
<div slot="footer" class="dialog-footer">
<el-button @click.native="formVisible = false">取消</el-button>
<el-button type="primary" @click.native="handleSubmit" :loading="formLoading">提交</el-button>
</div>
</el-dialog>

</section>
</template>

<script>
const rules = {
name: [{
required: true,
message: '请输入姓名',
trigger: 'blur'
}],
sex: [{
required: true,
message: '请选择性别',
trigger: 'change'
}]
}

let data = () => {
return {
//页码
page: 1,
//每页数量
size: 20,
//总数
total: 0,
//查询条件
filters: {},
//页面数据
rows: [],
//页面载入状态
pageLoading: false,
//列表高度
clientHeight: '100%',
//表单数据
form: {},
//验证规则
rules: rules,
//对话框隐藏状态
formVisible: false,
//表单提交状态
formLoading: false
}
}

let handleAdd = function() {
this.form = {}
this.form.sex = 1
this.formVisible = true
}

let handleEdit = function(index, row) {
this.form = Object.assign({}, row)
this.formVisible = true
}

let handleDelete = function(index, row) {
if (this.pageLoading)
return

this.$confirm('此操作将永久删除该数据, 是否继续?', '提示', {
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
}).then(() => {
this.pageLoading = true
this.$axios.get('/api/member/remove/' + row.id).then(res => {
this.pageLoading = false
if (!res.data.success) {
this.$message({
type: 'error',
message: res.data.message
})
return
}
this.$message({
type: 'success',
message: '删除成功!'
})
this.page = 1
this.getRows()
}).catch(e => this.pageLoading = false)
}).catch(e => {})
}

let getRows = function() {
if (this.pageLoading)
return
this.pageLoading = true

let params = {
page: this.page,
size: this.size,
query: this.filters.query
}
//调用post请求
this.$axios.post('/api/member/loadPage', params).then(res => {
this.pageLoading = false
if (!res.data || !res.data.rows)
return
//总数赋值
this.total = res.data.total
this.page++;
//页面元素赋值
this.rows = res.data.rows
}).catch(e => this.pageLoading = false)
}

let handleSubmit = function() {
if (this.formLoading)
return

this.$refs.form.validate(valid => {
if (!valid)
return

this.formLoading = true

//调用http协议
this.$axios.post('/api/member/save', this.form).then(res => {
this.formLoading = false
if (!res.data.success) {
this.$message({
showClose: true,
message: res.data.message,
type: 'error'
});
return
}
this.$message({
type: 'success',
message: '保存成功!'
})

//重新载入数据
this.page = 1
this.getRows()
this.formVisible = false
}).catch(e => this.formLoading = false)
})
}

let handleQuery = function() {
this.page = 1
this.getRows()
}

let handleCurrentChange = function(val) {
this.page = val
this.getRows()
}

let initHeight = function() {
this.clientHeight = (document.documentElement.clientHeight - 258) + 'px'
}

export default {
data: data,
methods: {
//查询
handleQuery,
//添加
handleAdd,
//修改
handleEdit,
//删除
handleDelete,
//页数改变
handleCurrentChange,
//获取分页
getRows,
//初始化高度
initHeight,
//提交数据
handleSubmit
},
mounted: function() {
window.addEventListener('resize', this.initHeight)
this.initHeight()
this.getRows()
}
}
</script>

<style scoped>
</style>

src\pages\Member.vue

运行效果如下图所示：



好了，到这里，整个前端的开发就结束了，请我们期待一起完成后端的开发。

返回目录

git代码地址：https://github.com/carter659/spring-boot-vue-element.git



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