SpringBoot+Vue项目新手快速入门指南
前言:本人目前从事java开发,但同时也在学习各种前端技术,下面是我做的一个前后端分离项目的一个小案例,不足之处请多多指教
1. 项目技术选型
Springboot+MyBatis-Plus+vue+element-ui+echarts
2.数据库设计
SET FOREIGN_KEY_CHECKS=0; DROP TABLE IF EXISTS `fruit`; CREATE TABLE `fruit` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(255) DEFAULT NULL COMMENT '名称', `sale` double DEFAULT NULL COMMENT '价格', `num` int(11) DEFAULT NULL COMMENT '库存', `create_time` datetime DEFAULT NULL COMMENT '创建时间', `update_time` datetime DEFAULT NULL COMMENT '更新时间', `del_flag` tinyint(4) DEFAULT '0' COMMENT '删除标记', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8;
3. 后台搭建
3.1 引入依赖
<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>3.1.1</version> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-generator</artifactId> <version>3.1.1</version> </dependency> <dependency> <groupId>org.webjars</groupId> <artifactId>velocity</artifactId> <version>1.1.0</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>2.0.6</version> </dependency> <dependency> <groupId>org.thymeleaf</groupId> <artifactId>thymeleaf</artifactId> </dependency> <dependency> <groupId>cn.hutool</groupId> <artifactId>hutool-all</artifactId> <version>5.7.22</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>5.0.0</version> </dependency> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>2.8.0</version> </dependency> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>2.8.0</version> </dependency> </dependencies>
3.2 swagger配置
@Configuration //什么此类为配置类 @EnableSwagger2 //开启swagger2 public class SwaggerConfig { }
3.3实体类
@Data @ToString @AllArgsConstructor @NoArgsConstructor @ApiModel public class Fruit { @ApiModelProperty("id") private int id; @ApiModelProperty("name") private String name; @ApiModelProperty("sale") private double sale; @ApiModelProperty("num") private int num; @TableField(fill = FieldFill.INSERT) private Date createTime; @TableField(fill = FieldFill.INSERT_UPDATE) private Date updateTime; @TableLogic private boolean delFlag; }
3.4 自动填充配置
@Component public class DateHandler implements MetaObjectHandler { @Override public void insertFill(MetaObject metaObject) { this.setFieldValByName("createTime",new Date(),metaObject); this.setFieldValByName("updateTime",new Date(),metaObject); } //使用mp实现更新操作,执行此方法 @Override public void updateFill(MetaObject metaObject) { this.setFieldValByName("updateTime",new Date(),metaObject); } }
3.5 Mapper
@Repository public interface FruitMapper extends BaseMapper<Fruit> { }
3.6 service
public interface FruitService extends IService<Fruit> { public FruitVO FruitVOList(); }
实现类
@Service public class FruitServiceImpl extends ServiceImpl<FruitMapper, Fruit> implements FruitService { @Autowired private FruitMapper fruitMapper; @Override public FruitVO FruitVOList() { List<Fruit> fruits = fruitMapper.selectList(null); ArrayList<String> name = new ArrayList<>(); ArrayList<Integer> num = new ArrayList<>(); for(Fruit fruit:fruits){ name.add(fruit.getName()); num.add(fruit.getNum()); } FruitVO fruitVO = new FruitVO(); fruitVO.setName(name); fruitVO.setNum(num); return fruitVO; } }
3.7 controller
@RequestMapping("/fruit") @RestController @Api(tags = "水果") @CrossOrigin public class FruitController { @Autowired private FruitService fruitService; @GetMapping("/list") @ApiOperation("获取水果列表") public ResponseData list(){ List<Fruit> list = fruitService.list(); return new ResponseData(200,list,"ok"); } @GetMapping("/list1") @ApiOperation(("获取水果列表1")) public List<Fruit> list1(){ List<Fruit> list = fruitService.list(); return list; } @DeleteMapping("/delete/{id}") @ApiOperation(("通过id删除水果信息")) public ResponseData deleteFruit(@PathVariable("id") int id){ // int id=1; // System.out.println(name); System.out.println(id); boolean b = fruitService.removeById(id); return new ResponseData().ok(b,"ok"); } @GetMapping("/getById/{id}") @ApiOperation("通过id获取水果信息") public ResponseData getById(@PathVariable("id") int id){ Fruit fruit = fruitService.getById(id); return new ResponseData().ok(fruit,"查找成功"); } @PutMapping("/update") @ApiOperation("添加水果信息") public ResponseData update(@RequestBody Fruit fruit){ boolean b = fruitService.updateById(fruit); if(b == true){ return new ResponseData().ok(fruit,"更新成功"); }else { return new ResponseData(404,fruit,"更新失败"); } } @PostMapping("/save") @ApiOperation("保存水果信息") public ResponseData save(@RequestBody Fruit fruit){ boolean save = fruitService.save(fruit); if(save == true){ return new ResponseData().ok(fruit,"保存成功"); }else { return new ResponseData().error(fruit,"保存失败"); } } @GetMapping("barVo") @ApiOperation("获取统计信息") public ResponseData barVo(){ FruitVO fruitVO = fruitService.FruitVOList(); return new ResponseData().ok(fruitVO,"查找成功"); } }
4. 前端搭建
4.1 环境搭建
4.1.1 Node环境
官方下载node
检查安装情况
node –v
npm –v
安装cnpm
npm install –g cnpm --registry=https://registry.npm.taobao.org
安装vue-cli
cnpm install vue-cli -g
4.1.2 项目构建
vue init webpack 项目名称
创建成功后,进入项目根目录,初始化项目并运行
cnpm install
cnpm run dev
4.1.3 安装插件
安装element-ui插件
cnpm install element-ui
安装axios插件
cnpm install axios
安装echarts插件
cnpm install echarts -S
4.1.4 引入插件
在main.js中引入插件
import Vue from 'vue' import App from './App' import router from './router' import echarts from 'echarts' import ElementUI from 'element-ui' import 'element-ui/lib/theme-chalk/index.css' import axios from 'axios' Vue.prototype.$axios = axios Vue.use(ElementUI) Vue.prototype.$echarts = echarts Vue.config.productionTip = false /* eslint-disable no-new */ new Vue({ el: '#app', router, components: { App }, template: '<App/>' })
4,2.搭建路由
import Vue from 'vue' import Router from 'vue-router' import HelloWorld from '@/components/HelloWorld' import About from '@/views/About' import Pie from '@/views/Pie' import Table from '@/views/Table' import Edit from '@/views/Edit' import Add from '@/views/Add' Vue.use(Router) export default new Router({ routes: [ { path: '/', name: 'HelloWorld', component: HelloWorld }, { path: '/about', name: 'About', component: About }, { path: '/pie', name: 'Pie', component: Pie }, { path: '/table', name: 'Table', component:Table }, { path: '/edit', name: 'Edit', component:Edit }, { path: '/add', name: 'Add', component:Add } ] })
4.3. echarts使用
在pages下创建一个名为pie.vue的文件
<template> <div> <h2>vue中插入Echarts示例</h2> <div id="chart_example" :style="{width:'800px',height:'600px'}"> </div> </div> </template> <script> const axios = require('axios'); export default { data() { }, mounted(){ let _this = this; axios.get('http://localhost:9001/fruit/barVo').then(function(response) { console.log(response.data.data) let myCharts = _this.$echarts.init(document.getElementById('chart_example')) myCharts.setOption( { title:{ text:'数量统计表', top:20 }, xAxis: { type: 'category', data: response.data.data.name }, yAxis: { type: 'value' }, series: [ { data: response.data.data.num, type: 'bar', name:'销量', showBackground: true, backgroundStyle: { color: 'rgba(180, 180, 180, 0.2)' } } ] }) }) } } </script>
4.4 element-ui使用
表格的使用
在views下面创建table.vue
<template> <el-table :data="tableData" border style="width: 100%"> <el-table-column fixed prop="id" label="id" width="150"> </el-table-column> <el-table-column prop="name" label="名称" width="120"> </el-table-column> <el-table-column prop="num" label="数量" width="120"> </el-table-column> <el-table-column prop="sale" label="价格" width="120"> </el-table-column> <el-table-column fixed="right" label="操作" width="100"> <template slot-scope="scope"> <el-button @click="fruitDel(scope.row)" type="text" size="small">删除</el-button> <el-button @click="getFruitById(scope.row)" type="text" size="small">编辑</el-button> </template> </el-table-column> </el-table> </template> <script> const axios = require('axios'); export default { methods: { handleClick(row) { console.log(row); }, fruitDel(row){ alert(row.id); axios.delete("http://localhost:9001/fruit/delete/"+row.id) location.reload(); }, getFruitById(object){ this.$router.push('/edit?id='+object.id) } }, created(){ let _this=this; axios.get("http://localhost:9001/fruit/list") .then(response => { console.log(response); console.log(response.data.data) _this.tableData=response.data.data }) }, data() { return{ tableData:null } } } </script>
表单的使用
在views下面常见文件Add.vue
<template> <el-form ref="form" :model="fruit" label-width="80px"> <el-form-item label="水果名称"> <el-input v-model="fruit.name"></el-input> </el-form-item> <el-form-item label="水果数量"> <el-input v-model="fruit.num"></el-input> </el-form-item> <el-form-item label="水果售价"> <el-input v-model="fruit.sale"></el-input> </el-form-item> <el-form-item> <el-button type="primary" @click="onSubmit('fruit')">立即创建</el-button> <el-button>取消</el-button> </el-form-item> </el-form> </template> <script> const axios = require('axios'); export default { data() { return { fruit: { id:'', name:'', num:'', sale: '' } } }, methods: { onSubmit(){ let _this = this; axios.post('http://localhost:9001/fruit/save',this.fruit) .then(function (response) { if(response.data==200) { this.$message({ message: '保存水果成功', type: 'success' }); } _this.$router.push('/table') }) } } } </script>
在views项目常见edit.vue
<template> <el-form ref="form" :model="fruit" label-width="80px"> <el-form-item label="水果ID"> <el-input v-model="fruit.id"></el-input> </el-form-item> <el-form-item label="水果名称"> <el-input v-model="fruit.name"></el-input> </el-form-item> <el-form-item label="水果数量"> <el-input v-model="fruit.num"></el-input> </el-form-item> <el-form-item label="水售价"> <el-input v-model="fruit.sale"></el-input> </el-form-item> <el-form-item> <el-button type="primary" @click="onSubmit('fruit')">编辑</el-button> <el-button>取消</el-button> </el-form-item> </el-form> </template> <script> const axios = require('axios'); export default { data() { return { fruit: { id:'', name:'', num:'', sale: '' } } }, created() { let id= this.$route.query.id let _this=this axios.get('http://localhost:9001/fruit/getById/'+id) .then(response=>{ console.log(response) _this.fruit=response.data.data }) }, methods: { onSubmit(){ alert(1) let _this = this axios.put("http://localhost:9001/fruit/update",this.fruit) .then(function (response) { console.log(response) if(response.data.code==200){ _this.$alert(_this.fruit.name+'修改成功',"修改数据",{ confirmButtonText:'确定', callback:action=>{ _this.$router.push('/table') } }) } }) } } } </script>
总结
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