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建设网站申请,石家庄口碑最好的装修公司,sap软件,哪些网站可以做免费推广写在开始:一个搬砖程序员的随缘记录文章目录 一、SpringBoot项目的搭建二、数据库配置1、新建数据库2、新建用户表 三、SpringBoot项目的配置 一、SpringBoot项目的搭建 项目搭建传送门#xff1a;从零开始#xff0c;SpringBoot项目快速搭建 二、数据库配置 1、新建数据库…写在开始:一个搬砖程序员的随缘记录文章目录 一、SpringBoot项目的搭建二、数据库配置1、新建数据库2、新建用户表 三、SpringBoot项目的配置 一、SpringBoot项目的搭建 项目搭建传送门从零开始SpringBoot项目快速搭建 二、数据库配置 1、新建数据库 在本地mysql数据库新建库库名vue_demo数据库名字可自行更改更改完记得在pom.xml中也同步更改 2、新建用户表 CREATE TABLE user (id int(11) NOT NULL,username varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,password varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,PRIMARY KEY (id) ) ENGINEInnoDB DEFAULT CHARSETutf8mb4 COLLATEutf8mb4_unicode_ci;三、SpringBoot项目的配置 项目结构 下面是具体文件的代码 pom.xml ?xml version1.0 encodingUTF-8? project xmlnshttp://maven.apache.org/POM/4.0.0 xmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexsi:schemaLocationhttp://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsdmodelVersion4.0.0/modelVersionparentgroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-parent/artifactIdversion2.5.3/versionrelativePath/ !– lookup parent from repository –/parentgroupIdcom.cn/groupIdartifactIdvue_demo/artifactIdversion0.0.1-SNAPSHOT/versionnamevue_demo/namedescriptionDemo project for Spring Boot/descriptionpropertiesproject.build.sourceEncodingUTF-8/project.build.sourceEncodingproject.reporting.outputEncodingUTF-8/project.reporting.outputEncodingjava.version1.8/java.versionskipTeststrue/skipTestsdruid.version1.1.10/druid.versionmysql-connector.version8.0.16/mysql-connector.versionmybatis-plus.version3.3.2/mybatis-plus.version/propertiesdependencies!–SpringBoot通用依赖模块–dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId/dependencydependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-actuator/artifactId/dependencydependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-aop/artifactId/dependencydependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-test/artifactIdscopetest/scope/dependency!–SpringBoot校验框架–dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-validation/artifactId/dependency!–集成druid连接池–dependencygroupIdcom.alibaba/groupIdartifactIddruid-spring-boot-starter/artifactIdversion\({druid.version}/version/dependency!--Mysql数据库驱动--dependencygroupIdmysql/groupIdartifactIdmysql-connector-java/artifactIdversion\){mysql-connector.version}/version/dependency!–lombok依赖–dependencygroupIdorg.projectlombok/groupIdartifactIdlombok/artifactIdoptionaltrue/optional/dependency!–SpringBoot配置处理–dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-configuration-processor/artifactIdoptionaltrue/optional/dependency!–MyBatis Plus 依赖–dependencygroupIdcom.baomidou/groupIdartifactIdmybatis-plus-boot-starter/artifactIdversion${mybatis-plus.version}/version/dependency/dependenciesbuildpluginsplugingroupIdorg.springframework.boot/groupIdartifactIdspring-boot-maven-plugin/artifactId/plugin/plugins/build/project返回实体类封装ResultBody ResultBody.java package com.cn.vuedemo.entity;/*** 请求** author demo/ public class ResultBodyT {/** 响应码/private int code;/** 消息/private String message;/** 数据/private T data;public ResultBody(int code, String message, T data) {this.code code;this.message message;this.data data;}public ResultBody(String message) {this.code 200;this.message message;}public ResultBody(int code, String message) {this.code code;this.message message;}public ResultBody(T data) {this.code 200;this.message 请求成功;this.data data;}public ResultBody(int code) {this.code code;this.message 请求成功;}public int getCode() {return code;}public void setCode(int code) {this.code code;}public String getMessage() {return message;}public void setMessage(String message) {this.message message;}public T getData() {return data;}public void setData(T data) {this.data data;} }用户实体类 User.java package com.cn.vuedemo.entity;import lombok.Data;/** author demo* date 2023/07/31 11:18/ Data public class User {/** id* /private Integer id;/** 账号* /private String username;/** 密码* /private String password; }登录方法入参 LoginReq.java package com.cn.vuedemo.model.request;import lombok.Data;/** author demo* since 2023/07/31 11:18/ Data public class LoginReq {/** 账号* /private String username;/** 密码* /private String password; }service UserService.java package com.cn.vuedemo.service;import com.cn.vuedemo.entity.User; import com.cn.vuedemo.model.request.LoginReq;import java.util.List;/** author demo* since 2023/07/31 11:18/ public interface UserService {/** 登录** param loginReq loginReq* return com.cn.vuedemo.entity.User* author demo* since 2023/07/31 11:18/User login(LoginReq loginReq); }service实现 UserServiceImpl.java package com.cn.vuedemo.service.impl;import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.cn.vuedemo.entity.User; import com.cn.vuedemo.mapper.UserMapper; import com.cn.vuedemo.model.request.LoginReq; import com.cn.vuedemo.service.UserService; import lombok.RequiredArgsConstructor; import org.springframework.stereotype.Service;/** author demo* since 2023/07/31 11:18/ Service RequiredArgsConstructor public class UserServiceImpl implements UserService {private final UserMapper userMapper;Overridepublic User login(LoginReq loginReq) {QueryWrapperUser queryWrapper new QueryWrapper();queryWrapper.lambda().eq(User::getUsername, loginReq.getUsername()).eq(User::getPassword, loginReq.getPassword());User user userMapper.selectOne(queryWrapper);return user;} }mapper UserMapper.java package com.cn.vuedemo.mapper;import com.baomidou.mybatisplus.core.mapper.BaseMapper; import com.cn.vuedemo.entity.User; import org.apache.ibatis.annotations.Mapper;/** author demo* since 2023/07/31 11:18/ Mapper public interface UserMapper extends BaseMapperUser { }控制层controller LoginController.java package com.cn.vuedemo.controller;import com.cn.vuedemo.entity.ResultBody; import com.cn.vuedemo.entity.User; import com.cn.vuedemo.model.request.LoginReq; import com.cn.vuedemo.service.UserService; import lombok.RequiredArgsConstructor; import lombok.extern.slf4j.Slf4j; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.;import java.util.List; import java.util.Objects;/*** author demo* date 2023/07/31 11:18/ RestController Slf4j RequestMapping(/user) RequiredArgsConstructor public class LoginController {private final UserService userService;/** 登陆** param loginReq loginReq* return com.cn.vuedemo.entity.ResultBody* author demo* since 2023/7/31*/PostMapping(value /login)public ResultBody login(RequestBody LoginReq loginReq) {log.info(loginReq: loginReq);User user userService.login(loginReq);if (Objects.isNull(user)) {return new ResultBody(500, 密码不正确);}return new ResultBody(user);} }Over