项目流程:
1、新建一个 SpringBoot 工程,并添加项目开发过程中需要的相关依赖;
2、数据库新建 book 数据表;
-- ----------------------------
-- Table structure for book
-- ----------------------------
DROP TABLE IF EXISTS `book`;
CREATE TABLE `book` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`title` varchar(55) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`publish` varchar(55) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`authors` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`createTime` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP(0),
`updateTime` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP(0) ON UPDATE CURRENT_TIMESTAMP(0),
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 14 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of book
-- ----------------------------
INSERT INTO `book` VALUES (2, '数据结构', '浙江出版社', '严威', '2022-03-18 14:38:22', '2022-03-18 14:38:25');
INSERT INTO `book` VALUES (5, '计算机组成原理', '机械工业出版社', '唐朔飞', '2022-03-14 14:38:28', '2022-03-15 14:38:36');
INSERT INTO `book` VALUES (6, '机器学习', '人民邮电出版社', '周志华', '2022-03-16 14:38:41', '2022-03-16 14:38:45');
INSERT INTO `book` VALUES (7, '图论及其应用', '科学技术出版社', '徐俊明', '2022-03-03 14:38:49', '2022-03-18 18:33:57');
INSERT INTO `book` VALUES (8, '推荐系统开发实战', '电子工业出版社', '高团阳', '2022-03-14 14:38:57', '2022-03-16 14:39:02');
INSERT INTO `book` VALUES (9, '大数据导论', '机械工业出版社', '曾诚', '2022-03-10 14:39:06', '2022-03-12 14:39:09');
INSERT INTO `book` VALUES (13, 'Java从零基础到实战', '中国工信出版集团', '宁楠', '2022-03-18 17:05:18', '2022-03-18 17:05:18');
3、application.yml 配置数据源和项目启动的端口号;
# 修改服务启动的端口
server:
port: 8181
spring:
datasource:
url: jdbc:mysql://localhost:3306/book?useUnicode=true&characterEncoding=UTF-8
username: root
password: 123456
driver-class-name: com.mysql.jdbc.Driver
# 配置日志,打印执行的sql语句
mybatis-plus:
configuration:
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
项目整体的目录结构如下:
4、创建实体类 Book.java;
@AllArgsConstructor
@NoArgsConstructor
@Data
@TableName(value = "book")
public class Book {
@TableId(type = IdType.AUTO)
private Long id;
private String title;
private String publish;
private String authors;
@TableField(value = "createTime", fill = FieldFill.INSERT)
private Date createTime;
@TableField(value = "updateTime", fill = FieldFill.INSERT_UPDATE)
private Date updateTime;
}
5、添加 MyBatis Plus 自动填充的处理器 config/DataHandler.java;
import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;
import java.util.Date;
@Component
public class DataHandler implements MetaObjectHandler{
//插入时的填充策略
@Override
public void insertFill(MetaObject metaObject) {
this.setFieldValByName("createTime", new Date(), metaObject);
this.setFieldValByName("updateTime", new Date(), metaObject);
}
//更新时的填充策略
@Override
public void updateFill(MetaObject metaObject) {
this.setFieldValByName("updateTime", new Date(), metaObject);
}
}
6、持久化层 mapper/BookMapper.java;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.trainingl.entity.Book;
import org.springframework.stereotype.Repository;
@Repository //持久层注解
public interface BookMapper extends BaseMapper<Book> {
//所有的CRUD操作都已经编写好了
}
7、服务层 service;
service/BookService.java
import com.trainingl.entity.Book;
import java.util.List;
//数据的增删改查接口
public interface BookService {
public List<Book> findAll();
public Book findById(Long id);
public int insert(Book book);
public int deleteById(Long id);
public int updateById(Book book);
}
service/Impl/BookServiceImpl.java
import com.trainingl.entity.Book;
import com.trainingl.mapper.BookMapper;
import com.trainingl.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class BookServiceImpl implements BookService {
@Autowired
private BookMapper bookMapper;
@Override
public List<Book> findAll() {
//查询搜索记录
return bookMapper.selectList(null);
}
@Override
public Book findById(Long id) {
return bookMapper.selectById(id);
}
@Override
public int insert(Book book) {
return bookMapper.insert(book);
}
@Override
public int deleteById(Long id) {
return bookMapper.deleteById(id);
}
@Override
public int updateById(Book book) {
return bookMapper.updateById(book);
}
}
8、控制层 Controller;
controller/BookController.java
import com.trainingl.entity.Book;
import com.trainingl.service.BookService;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@RestController
@CrossOrigin //跨域注解
public class BookController {
@Autowired
private BookService bookService;
@RequestMapping("/booklist")
public List<Book> booklist(){
return bookService.findAll();
}
@RequestMapping("/addbook")
public int addbook(@RequestBody Book book){
return bookService.insert(book);
}
@DeleteMapping("/deleteById/{id}")
public int deleteById(@PathVariable("id") Long id){
Integer result = 0;
result = bookService.deleteById(id);
//删除成功则返回受影响的行数
return result;
}
@GetMapping("/findById/{id}")
public Book findById(@PathVariable("id") Long id){
return bookService.findById(id);
}
@PutMapping("/updateById")
public int updateById(@RequestBody Book book){
//返回修改的条数
return bookService.updateById(book);
}
}
1、主页面 App.vue
<template>
<div id="app">
<router-view/>
div>
template>
<script>
export default {
name: 'App',
components: {
},
data(){
return{
}
},
}
script>
2、数据列表视图 views/table.vue
<template>
<div>
<el-table
:data="tableData"
border
style="width: 70%">
<el-table-column
fixed
prop="id"
label="编号"
width="80">
el-table-column>
<el-table-column
prop="title"
label="书籍名称"
width="160">
el-table-column>
<el-table-column
prop="publish"
label="出版社"
width="150">
el-table-column>
<el-table-column
prop="authors"
label="作者"
width="120">
el-table-column>
<el-table-column
prop="createTime"
label="创建时间"
width="150">
el-table-column>
<el-table-column
prop="updateTime"
label="修改时间"
width="150">
el-table-column>
<el-table-column
fixed="right"
label="操作"
width="150">
<template slot-scope="scope">
<el-button @click="del(scope.row)" type="danger" size="small">删除el-button>
<el-button @click="edit(scope.row)" type="success" size="small">编辑el-button>
template>
el-table-column>
el-table>
<br>
<el-button type="primary" @click="addBook" icon="el-icon-edit" size="small">添加记录el-button>
div>
template>
<script>
export default {
name: "table",
methods: {
addBook(){
this.$router.push("/addbook")
},
del(row) {
let _this = this;
this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
}).then(() => {
this.$axios.delete("http://localhost:8181/deleteById/" + row.id).then(function (response) {
if (response.data == 1) {
//刷新页面
location.reload();
} else {
_this.$message({
showClose: true,
message: '删除信息失败!',
type: 'danger'
});
}
})
})
},
edit(row) {
this.$router.push("/edit?id=" + row.id);
}
},
data() {
return {
tableData: []
}
},
created(){
let _this = this;
this.$axios.get("http://localhost:8181/booklist").then(function (response) {
_this.tableData = response.data;
})
}
}
script>
<style scoped>
style>
3、新增视图文件 views/addBook.vue
<template>
<div>
<h2 style="padding-left: 200px">新增图书信息h2>
<el-form :model="ruleForm" style="width: 500px;" status-icon :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
<el-form-item label="书籍名称" prop="title">
<el-input type="text" v-model="ruleForm.title" autocomplete="off">el-input>
el-form-item>
<el-form-item label="出版社" prop="publish">
<el-input type="text" v-model="ruleForm.publish" autocomplete="off">el-input>
el-form-item>
<el-form-item label="作者信息" prop="authors">
<el-input v-model.number="ruleForm.authors">el-input>
el-form-item>
<el-form-item>
<el-button type="primary" @click="submitForm('ruleForm')">提交el-button>
<el-button @click="resetForm('ruleForm')">重置el-button>
el-form-item>
el-form>
div>
template>
<script>
export default {
name: "addBook",
data() {
var checkAuthor = (rule, value, callback) => {
if (value === '') {
callback(new Error('请输入作者信息'));
} else {
callback();
}
};
var validateTitle = (rule, value, callback) => {
if (value === '') {
callback(new Error('请输入书籍名称'));
} else {
callback();
}
};
var validatePublish = (rule, value, callback) => {
if (value === '') {
callback(new Error('请输入出版社'));
} else {
callback();
}
};
return {
ruleForm: {
title: '',
publish: '',
authors: ''
},
rules: {
title: [
{ validator: validateTitle, trigger: 'blur' }
],
publish: [
{ validator: validatePublish, trigger: 'blur' }
],
authors: [
{ validator: checkAuthor, trigger: 'blur' }
]
}
};
},
methods: {
submitForm(formName) {
let _this = this;
this.$refs[formName].validate((valid) => {
if (valid) {
this.$axios.post("http://localhost:8181/addbook", _this.ruleForm).then(function (response) {
if(response.data == 1){
//跳转到表格页面
_this.$router.push('/table')
}
})
} else {
console.log('error submit!!');
return false;
}
});
},
resetForm(formName) {
this.$refs[formName].resetFields();
}
}
}
script>
<style scoped>
style>
4、编辑或修改视图文件 views/edit.vue
<template>
<div>
<h2 style="padding-left: 200px">修改图书信息h2>
<el-form :model="ruleForm" style="width: 500px;" status-icon :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
<el-form-item label="图书编号">
<el-input type="text" readonly v-model="ruleForm.id" autocomplete="off">el-input>
el-form-item>
<el-form-item label="书籍名称" prop="title">
<el-input type="text" v-model="ruleForm.title" autocomplete="off">el-input>
el-form-item>
<el-form-item label="出版社" prop="publish">
<el-input type="text" v-model="ruleForm.publish" autocomplete="off">el-input>
el-form-item>
<el-form-item label="作者信息" prop="authors">
<el-input v-model.number="ruleForm.authors">el-input>
el-form-item>
<el-form-item label="创建时间">
<el-input readonly v-model.number="ruleForm.createTime">el-input>
el-form-item>
<el-form-item label="修改时间">
<el-input readonly v-model.number="ruleForm.updateTime">el-input>
el-form-item>
<el-form-item>
<el-button type="primary" @click="submitForm('ruleForm')">提交el-button>
<el-button @click="resetForm('ruleForm')">重置el-button>
el-form-item>
el-form>
div>
template>
<script>
export default {
name: "edit",
data() {
var checkAuthor = (rule, value, callback) => {
if (value === '') {
callback(new Error('请输入作者信息'));
} else {
callback();
}
};
var validateTitle = (rule, value, callback) => {
if (value === '') {
callback(new Error('请输入书籍名称'));
} else {
callback();
}
};
var validatePublish = (rule, value, callback) => {
if (value === '') {
callback(new Error('请输入出版社'));
} else {
callback();
}
};
return {
ruleForm: {
id: '',
title: '',
publish: '',
authors: '',
createTime: '',
updateTime: ''
},
rules: {
title: [
{ validator: validateTitle, trigger: 'blur' }
],
publish: [
{ validator: validatePublish, trigger: 'blur' }
],
authors: [
{ validator: checkAuthor, trigger: 'blur' }
]
}
};
},
methods: {
submitForm(formName) {
let _this = this;
this.$refs[formName].validate((valid) => {
if (valid) {
this.$axios.put("http://localhost:8181/updateById", _this.ruleForm).then(function (response) {
if(response.data === 1){
//跳转到表格页面
_this.$router.push('/table')
}
})
} else {
console.log('error submit!!');
return false;
}
});
},
resetForm(formName) {
this.$refs[formName].resetFields();
}
},
mounted(){
let _this = this;
this.$axios.get("http://localhost:8181/findById/" + this.$route.query.id).then(function (response) {
_this.ruleForm = response.data;
});
}
}
script>
<style scoped>
style>
5、路由文件 router.js
import Vue from 'vue'
//1.导入路由依赖,安装 vue-router组件后系统带有的依赖
import VueRouter from 'vue-router'
//2.导入两个页面
import Login from "@/views/login";
import Second from "@/views/Second";
import Table from "@/views/table";
import AddBook from "@/views/addBook";
import Edit from "@/views/edit";
// 3.使用路由
Vue.use(VueRouter);
//4.创建路由对象,new VueRouter为上面import设置的名称
const router = new VueRouter({
//没有history,访问URL会有#
mode: "history",
routes: [
{
path:"/login",
component: Login
},
{
path:"/second",
component: Second
},
{
path:"/table",
component: Table
},
{
path:"/addbook",
component: AddBook
},
{
path:"/edit",
component: Edit
},
]
});
export default router;
6、组件的全局配置 main.js
import Vue from 'vue'
import App from './App.vue'
import router from "./router/index"
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';
import axios from "axios"
import qstring from "querystring"
// Vue 全局Vue对象,prototype原型设置全局属性
Vue.prototype.$axios = axios
Vue.prototype.$qstring=qstring
Vue.config.productionTip = false;
Vue.use(ElementUI);
new Vue({
router,
render: h => h(App),
}).$mount('#app')