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.gitignore

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+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/encodings.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>

.idea/inspectionProfiles/Project_Default.xml

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+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+  </profile>
+</component>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MarkdownSettingsMigration">
+    <option name="stateVersion" value="1" />
+  </component>
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK" />
+</project>

.idea/setting.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="arthas.idea.plugin">
+    <option name="redisAddress" value="" />
+    <option name="redisAuth" value="" />
+    <option name="redisCacheKey" value="" />
+  </component>
+</project>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

pom.xml

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+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.bwie</groupId>
+    <artifactId>day10</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+            <version>2.6.2</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <version>2.6.2</version>
+        </dependency>
+        <!-- Mysql Connector -->
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.27</version>
+        </dependency>
+        <!-- Mybatis 依赖配置 -->
+        <dependency>
+            <groupId>org.mybatis.spring.boot</groupId>
+            <artifactId>mybatis-spring-boot-starter</artifactId>
+            <version>2.2.2</version>
+        </dependency>
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-boot-starter</artifactId>
+            <version>3.5.3.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.32</version>
+        </dependency>
+
+    </dependencies>
+</project>

src/main/java/com/bwie/user/UserApplication.java

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+package com.bwie.user;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+@SpringBootApplication
+public class UserApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(UserApplication.class,args);
+    }
+}

src/main/java/com/bwie/user/controller/UserController.java

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+package com.bwie.user.controller;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.bwie.user.domain.User;
+import com.bwie.user.service.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+public class UserController {
+    @Autowired
+    private UserService userService;
+
+
+    @PostMapping("findList")
+    public List<User> findList(){
+        List<User> list = userService.findList();
+        return list;
+    }
+    @PostMapping("delete")
+    public String delete(Integer uid){
+        int delete = userService.delete(uid);
+        return delete>0?"删除成功":"删除失败";
+
+    }
+    @PostMapping("findUserByOrder")
+    public Page<User> findUserByOrder(){
+        return userService.findUserByOrder();
+
+    }
+
+}

src/main/java/com/bwie/user/domain/User.java

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+package com.bwie.user.domain;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.util.Date;
+@Data
+@TableName("t_user")
+public class User {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Integer uid;
+    @TableField(value = "userName")
+    private String userName;
+    private String pwd;
+    private Integer sex;
+    private Date birthday;
+
+}

src/main/java/com/bwie/user/mapper/UserMapper.java

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+package com.bwie.user.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.bwie.user.domain.User;
+import org.apache.ibatis.annotations.Mapper;
+
+
+@Mapper
+public interface UserMapper  extends BaseMapper<User>{
+
+}

src/main/java/com/bwie/user/service/UserService.java

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+package com.bwie.user.service;
+
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.bwie.user.domain.User;
+
+import java.util.List;
+
+public interface UserService {
+    List<User> findList();
+
+    int delete(Integer uid);
+
+    Page<User> findUserByOrder();
+}

src/main/java/com/bwie/user/service/impl/UserServiceImpl.java

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+package com.bwie.user.service.impl;
+
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.bwie.user.domain.User;
+import com.bwie.user.mapper.UserMapper;
+import com.bwie.user.service.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class UserServiceImpl implements UserService {
+    @Autowired
+    private UserMapper userMapper;
+
+    @Override
+    public List<User> findList() {
+        return userMapper.selectList(new QueryWrapper<>());
+    }
+
+    @Override
+    public int delete(Integer uid) {
+        return userMapper.deleteById(uid);
+    }
+
+    @Override
+    public Page<User> findUserByOrder() {
+        QueryWrapper<User> userQueryWrapper = new QueryWrapper<>();
+        QueryWrapper<User> user = userQueryWrapper.orderByDesc("birthday");
+        long i=0;
+        long j=12;
+        Page<User> objectPage = Page.of(i, j);
+        Page<User> userPage = userMapper.selectPage(objectPage, user);
+        return userPage;
+    }
+}

src/main/resources/application.yml

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+server:
+  port: 8080
+spring:
+  datasource:
+    driver-class-name: com.mysql.cj.jdbc.Driver
+    url: jdbc:mysql://127.0.0.1:3306/day10?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true&serverTimezone=GMT%2B8
+    username: root
+    password: cyx12345
+
+
+# mybatis配置
+mybatis:
+  # 搜索指定包别名
+  typeAliasesPackage: com.bwie.user.domain
+  # 配置mapper的扫描，找到所有的mapper.xml映射文件
+  mapperLocations: classpath:mapper/**/*.xml
+  configuration:
+    map-underscore-to-camel-case: true
+# 将mapper接口所在包的日志级别改成debug，可以在控制台打印sql
+logging:
+  level:
+    com.bwie.**: debug