增删改查,分页
CREATE TABLE `tbl_book` (
`id` int NOT NULL AUTO_INCREMENT,
`type` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`name` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`desc_ription` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`sensitive_Info` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`sensitive_Info2` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL,
`create_time` datetime DEFAULT NULL,
`update_time` datetime DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=85 DEFAULT CHARSET=utf8mb3 ROW_FORMAT=DYNAMIC;
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (74, '图林原创', 'Nginx经典教程', 'F5 NGINX核心人员倾力打造,关注基础用法和现代场景,新技术趋势下经典全新解读,涵盖容器,Kubernetes,NJS语言,新协议支持等', NULL, NULL, '2023-11-10 21:12:07', NULL);
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (75, '全栈开发', 'Vue.Js前端开发基础与项目实战', '系统深入从原理进行分析,详细介绍前端的发展和常用Vue.js功能模块,内容实用,全面讲解Vue.js生态链且涵盖后端架构相关知识,项目实战详细介绍实用插件和构建PC端网站的步骤及前后端开发流程', NULL, NULL, '2023-11-10 21:14:49', NULL);
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (76, '架构', '凤凰架构', '从架构演进,架构设计思维,分布式基石,不可变基础设施,技术方法论5个维度全面探索如何构建可靠的大型分布式系统', NULL, NULL, '2023-11-10 21:16:38', NULL);
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (77, '华章科技', 'Maven实战', '国内首本Maven著作,内容全面,实战性强,公认的Maven专家执笔,中外技术专家联合推荐,权威性无需置疑', NULL, NULL, '2023-11-10 21:18:31', NULL);
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (78, 'Broadview', '深入理解Apache Dubbo与实战', NULL, NULL, NULL, '2023-11-10 21:19:46', NULL);
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (79, '图林程序设计丛书', 'SQL查询', '赢得世界赞誉的SQL经典著作', NULL, NULL, '2023-11-10 21:20:27', NULL);
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (80, '华章科技', '分布式中间件技术实战', NULL, NULL, NULL, '2023-11-10 21:21:31', NULL);
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (81, '异步图书', 'SpringBoot源码解读与原理分析', NULL, NULL, NULL, '2023-11-10 21:22:09', NULL);
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (82, '图林程序', 'SQL必知必会', '畅销全球的数据库入门经典', NULL, NULL, '2023-11-10 21:23:03', NULL);
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (83, 'Java专家系列', 'JDBC数据库程序设计', '本书讨论的内容主要是如何利用Java程序语言,编写与数据库相关的应用程序.从最开始Java语言与数据库管理系统的介绍,JDBC API的实用,乃至最后Java数据库应用程序开发的实战.都将在本书中详细说明.详细的实例讲解和完整的章节安排,非常适合Java初学者快速学习实用Java开发数据库相关的应用程序,范例程序丰富,代码和运行结果以图文并茂的方式配合呈现', NULL, NULL, '2023-11-10 21:26:50', NULL);
INSERT INTO `tbl_book`(`id`, `type`, `name`, `desc_ription`, `sensitive_Info`, `sensitive_Info2`, `create_time`, `update_time`) VALUES (84, 'GOTOP', '鸟哥的Linux私房菜', '经久不衰的Linux经典教程', NULL, NULL, '2023-11-10 21:27:45', NULL);
pom.xml
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.7.2</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>ssmp</artifactId> <version>0.0.1-SNAPSHOT</version> <name>ssmp</name> <description>Demo project for Spring Boot</description> <properties> <java.version>17</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>3.4.3</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.2.16</version> </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> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <excludes> <exclude> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </exclude> </excludes> </configuration> </plugin> </plugins> </build> </project>
application.properties
实体类
package com.example.ssmp.pojo; import com.baomidou.mybatisplus.annotation.*; import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; import lombok.Value; import lombok.experimental.Accessors; import java.util.Date; /** * @author hrui * @date 2023/11/10 0:34 */ @Data @NoArgsConstructor @AllArgsConstructor @Accessors(chain = true) //@TableName("tbl_book") 已全局配置 public class Book { //标识id为表的主键 //value为id的名称(和表字段一样可以不写) type为主键自增情况 //auto为数据库自增 //ASSIGN_UUID 通过uuid进行主键的自增 //@TableId(value = "id",type=IdType.AUTO) 已全局配置 private String id; private String type; private String name; private String descRiption; //insert的时候触发的时候自动填充 @TableField(fill = FieldFill.INSERT) private Date createTime; //update触发的时候自动填充 @TableField(fill = FieldFill.UPDATE) private Date updateTime; // @TableField(select = true, insertStrategy = FieldStrategy.NEVER, updateStrategy = FieldStrategy.NEVER) // private String sensitiveInfo; // 只在查询中展示 // // private transient String sensitiveInfo2; }
DAO层
业务层
实现类
控制器
package com.example.ssmp.controller; import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper; import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.baomidou.mybatisplus.core.metadata.IPage; import com.baomidou.mybatisplus.extension.plugins.pagination.Page; import com.example.ssmp.pojo.Book; import com.example.ssmp.service.BookService; import com.fasterxml.jackson.databind.ObjectMapper; import org.apache.logging.log4j.util.Strings; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.*; import java.util.List; /** * @author hrui * @date 2023/11/10 0:42 */ @RestController @RequestMapping("/books") public class BookController { @Autowired private BookService bookService; @GetMapping public R getAllBooks(){ return new R(true, bookService.list()); } @GetMapping("/{pageNum}/{pageSize}") public R getAllBooks(@PathVariable Integer pageNum,@PathVariable Integer pageSize,Book book){ Page<Book> page=new Page<>(pageNum,pageSize); LambdaQueryWrapper<Book> lambdaQueryWrapper=new LambdaQueryWrapper<>(); lambdaQueryWrapper.like(Strings.isNotEmpty(book.getName()), Book::getName, book.getName()); lambdaQueryWrapper.like(Strings.isNotEmpty(book.getType()), Book::getType, book.getType()); lambdaQueryWrapper.like(Strings.isNotEmpty(book.getDescRiption()), Book::getDescRiption, book.getDescRiption()); page = bookService.page(page,lambdaQueryWrapper); /** * 存在情况 * 比如第三页只有一条数据,删除后getAll,传过来的页面是3 但是返回的是无数据 */ if(pageNum>page.getPages()){ //重查一遍 page=new Page<>(page.getPages(),pageSize); page=bookService.page(page,lambdaQueryWrapper); } return new R(true, page); } @GetMapping("/{id}") public R getById(@PathVariable String id){ Book book = bookService.getById(id); return new R(book!=null, book,book!=null?"成功":"数据同步失败,自动刷新"); } @PostMapping public R save(@RequestBody Book book){ System.out.println(123); boolean save = bookService.save(book); R r = new R(save); return r; } // @PutMapping // public Object update(@RequestBody Book book){ // return bookService.updateById(book); // } @PutMapping public R update(@RequestBody List<Book> books){//用Book[]也可以 数据格式:[{},{}] boolean b = bookService.updateBatchById(books); return new R(b,b?"更新成功":"数据同步失败,自动刷新"); } // @DeleteMapping("/{id}") // public Object delete(@PathVariable String id){ // return bookService.removeById(id); // } @DeleteMapping("/{ids}")//http://localhost:8080/books/52,53 public R delete(@PathVariable List<String> ids){ boolean b = bookService.removeByIds(ids); return new R(b,b?"删除成功":"数据同步失败,自动刷新"); } }
统一返回
package com.example.ssmp.controller; import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; import lombok.experimental.Accessors; /** * @author hrui * @date 2023/11/10 7:03 */ @NoArgsConstructor @AllArgsConstructor @Data @Accessors(chain = true) public class R { private Boolean flag;//表示调用是否成功 private Object data; private String msg; public R(Boolean flag){ this.flag=flag; } public R(String msg){ this.flag=false; this.msg=msg; } public R(Boolean flag,Object data){ this.flag=flag; this.data=data; } public R(Boolean flag,String msg){ this.flag=flag; this.msg=msg; } }
全局异常处理
package com.example.ssmp.exception; import com.example.ssmp.controller.R; import lombok.extern.slf4j.Slf4j; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.RestControllerAdvice; /** * @author hrui * @date 2023/11/10 10:39 */ @RestControllerAdvice @Slf4j public class PExceptionAdvice { //private static final Logger log= LoggerFactory.getLogger(PExceptionAdvice.class); @ExceptionHandler(Exception.class) public R doException(Exception e){ //记录日志 log.error("exception", e); e.printStackTrace(); return new R("服务器故障,稍后再试"); } }
MybatisPlus 自动填充配置
package com.example.ssmp.congif; import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler; import org.apache.ibatis.reflection.MetaObject; import org.springframework.stereotype.Component; import java.util.Date; /** * @author hrui * @date 2023/11/10 3:14 */ @Component public class DateHandler implements MetaObjectHandler { @Override public void insertFill(MetaObject metaObject) { this.strictInsertFill(metaObject,"createTime", Date.class,new Date()); } @Override public void updateFill(MetaObject metaObject) { this.strictUpdateFill(metaObject,"updateTime",Date.class,new Date()); } }
MybatisPlus分页配置
package com.example.ssmp.congif; import com.baomidou.mybatisplus.annotation.DbType; import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor; import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; /** * @author hrui * @date 2023/11/10 3:10 */ @Configuration public class MyBatisPlusPageInterceptor { /** * 添加分页插件 */ // @Bean // public MybatisPlusInterceptor mybatisPlusInterceptor() { // MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor(); // interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));//如果配置多个插件,切记分页最后添加 // //interceptor.addInnerInterceptor(new PaginationInnerInterceptor()); 如果有多数据源可以不配具体类型 否则都建议配上具体的DbType // return interceptor; // } @Bean public MybatisPlusInterceptor mybatisPlusInterceptor(){ MybatisPlusInterceptor mybatisPlusInterceptor=new MybatisPlusInterceptor(); mybatisPlusInterceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL)); return mybatisPlusInterceptor; } }
前端
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>基于SpringBoot整合SSM案例</title>
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 引入样式 -->
<link rel="stylesheet" href="../plugins/elementui/index.css">
<link rel="stylesheet" href="../plugins/font-awesome/css/font-awesome.min.css">
<link rel="stylesheet" href="../css/style.css">
</head>
<body class="hold-transition">
<div id="app">
<div class="content-header">
<h1>图书管理</h1>
</div>
<div class="app-container">
<div class="box">
<div class="filter-container">
<el-input placeholder="图书类别" v-model="pagination.type" style="width: 200px;" class="filter-item"></el-input>
<el-input placeholder="图书名称" v-model="pagination.name" style="width: 200px;" class="filter-item"></el-input>
<el-input placeholder="图书描述" v-model="pagination.descRiption" style="width: 200px;" class="filter-item"></el-input>
<el-button @click="getAll()" class="dalfBut">查询</el-button>
<el-button type="primary" class="butT" @click="handleCreate()">新建</el-button>
</div>
<el-table size="small" current-row-key="id" :data="dataList" stripe highlight-current-row>
<el-table-column type="index" align="center" label="序号"></el-table-column>
<el-table-column prop="type" label="图书类别" align="center"></el-table-column>
<el-table-column prop="name" label="图书名称" align="center"></el-table-column>
<el-table-column prop="descRiption" label="描述" align="center"></el-table-column>
<el-table-column label="操作" align="center">
<template slot-scope="scope">
<el-button type="primary" size="mini" @click="handleUpdate(scope.row)">编辑</el-button>
<el-button type="danger" size="mini" @click="handleDelete(scope.row)">删除</el-button>
</template>
</el-table-column>
</el-table>
<!--分页组件-->
<div class="pagination-container">
<el-pagination
class="pagiantion"
@current-change="handleCurrentChange"
:current-page="pagination.currentPage"
:page-size="pagination.pageSize"
layout="total, prev, pager, next, jumper"
:total="pagination.total">
</el-pagination>
</div>
<!-- 新增标签弹层 -->
<div class="add-form">
<el-dialog title="新增图书" :visible.sync="dialogFormVisible">
<el-form ref="dataAddForm" :model="formData" :rules="rules" label-position="right" label-width="100px">
<el-row>
<el-col :span="12">
<el-form-item label="图书类别" prop="type">
<el-input v-model="formData.type"/>
</el-form-item>
</el-col>
<el-col :span="12">
<el-form-item label="图书名称" prop="name">
<el-input v-model="formData.name"/>
</el-form-item>
</el-col>
</el-row>
<el-row>
<el-col :span="24">
<el-form-item label="描述">
<el-input v-model="formData.descRiption" type="textarea"></el-input>
</el-form-item>
</el-col>
</el-row>
</el-form>
<div slot="footer" class="dialog-footer">
<el-button @click="cancel()">取消</el-button>
<el-button type="primary" @click="handleAdd()">确定</el-button>
</div>
</el-dialog>
</div>
<!-- 编辑标签弹层 -->
<div class="add-form">
<el-dialog title="编辑检查项" :visible.sync="dialogFormVisible4Edit">
<el-form ref="dataEditForm" :model="formData" :rules="rules" label-position="right" label-width="100px">
<el-row>
<el-col :span="12">
<el-form-item label="图书类别" prop="type">
<el-input v-model="formData.type"/>
</el-form-item>
</el-col>
<el-col :span="12">
<el-form-item label="图书名称" prop="name">
<el-input v-model="formData.name"/>
</el-form-item>
</el-col>
</el-row>
<el-row>
<el-col :span="24">
<el-form-item label="描述">
<el-input v-model="formData.descRiption" type="textarea"></el-input>
</el-form-item>
</el-col>
</el-row>
</el-form>
<div slot="footer" class="dialog-footer">
<el-button @click="cancel()">取消</el-button>
<el-button type="primary" @click="handleEdit()">确定</el-button>
</div>
</el-dialog>
</div>
</div>
</div>
</div>
</body>
<!-- 引入组件库 -->
<script src="../js/vue.js"></script>
<script src="../plugins/elementui/index.js"></script>
<script type="text/javascript" src="../js/jquery.min.js"></script>
<script src="../js/axios-0.18.0.js"></script>
<script>
var vue = new Vue({
el: '#app',
data:{
dataList: [],//当前页要展示的列表数据
dialogFormVisible: false,//添加表单是否可见
dialogFormVisible4Edit:false,//编辑表单是否可见
formData: {},//表单数据
rules: {//校验规则
type: [{ required: true, message: '图书类别为必填项', trigger: 'blur' }],
name: [{ required: true, message: '图书名称为必填项', trigger: 'blur' }]
},
pagination: {//分页相关模型数据
currentPage: 1,//当前页码
pageSize:10,//每页显示的记录数
total:0,//总记录数
type:"",//图书类别
name:"",//图书名称
descRiption:""//描述
}
},
//钩子函数,VUE对象初始化完成后自动执行
created() {
//调用查询全部数据的操作
this.getAll();
},
methods: {
//列表
// getAll() {
// //发送异步请求
// axios.get("/books").then((res)=>{
// console.log(res)
// if(res.data.flag){
// this.dataList=res.data.data
// }
// })
// },
//弹出添加窗口
handleCreate() {
this.resetForm()
//打开新增窗口
this.dialogFormVisible=true
},
//重置表单
resetForm() {
//清理数据
this.formData={}
},
//添加
handleAdd () {
axios.post("/books",this.formData).then((res)=>{
console.log(res)
if(res.data.flag){
this.dialogFormVisible=false
this.$message.success("添加成功")
}else{
//this.$message.error("添加失败")
this.$message.error(res.data.msg)
}
}).finally(()=>{
//重新加载数据
this.getAll()
})
},
//取消
cancel(){
//关闭新增窗口
this.dialogFormVisible=false
this.dialogFormVisible4Edit=false
this.$message.info("当前操作取消")
},
// 删除
handleDelete(row) {
//弹出提示框 防止误删
this.$confirm("此操作永久删除,是否继续?",{type: "info"}).then(()=>{
//确定
let id=row.id
axios.delete("/books/"+id).then((res)=>{
if(res.data.flag){
this.$message.success("删除成功")
}else{
//this.$message.error("数据同步失败,自动刷新")
this.$message.error(res.data.msg)
}
}).finally(()=>{
//重新加载数据
this.getAll()
})
//取消
}).catch(()=>{
this.$message.info("取消操作")
})
},
//弹出编辑窗口
handleUpdate(row) {
axios.get("/books/"+row.id).then((res)=>{
if(res.data.flag&&res.data.data!=null){
this.formData=res.data.data
this.dialogFormVisible4Edit=true
}else{
//this.$message.error("数据同步失败,自动刷新")
this.$message.error(res.data.msg)
this.dialogFormVisible4Edit=false
}
}).finally(()=>{
//刷新页面
this.getAll()
})
//this.formData=row
//this.dialogFormVisible4Edit=true
},
//修改
handleEdit() {
var data=[]
data.push(this.formData)
axios.put("/books",data).then((res)=>{
console.log(res)
if(res.data.flag){
//关闭弹窗
this.dialogFormVisible4Edit=false
this.$message.success("修改成功")
}else{
//this.$message.error("修改失败")
this.$message.error(res.data.msg)
}
}).finally(()=>{
//重新加载数据
this.getAll()
})
},
//分页查询
getAll(){
axios.get("/books/"+this.pagination.currentPage+"/"+this.pagination.pageSize+"?name="+this.pagination.name+"&type="+this.pagination.type+"&descRiption="+this.pagination.descRiption).then((res)=>{
console.log(res)
if(res.data.flag){
this.dataList=res.data.data.records
this.pagination.currentPage=res.data.data.current//当前页
this.pagination.pageSize=res.data.data.size//
this.pagination.total=res.data.data.total//总条数
}
})
},
//切换页码
handleCurrentChange(currentPage) {
//修改页为当前页
this.pagination.currentPage=currentPage
//执行查询
this.getAll()
},
//条件查询
}
})
</script>
</html>
前端页面网盘地址
链接:https://pan.baidu.com/s/1BcQXH8gdPZuPfxJ0Lx2wcg
提取码:uude
--来自百度网盘超级会员V4的分享