SpringBoot入门实战（项目搭建、配置、功能接口实现等一篇通关）

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SpringBoot入门实战（项目搭建、配置、功能接口实现等一篇通关）

SpringBoot入门实战系列篇专栏
SpringBoot入门实战（第一篇：环境准备和项目初始化）
SpringBoot入门实战（第二篇：MySQL集成配置）
SpringBoot入门实战（第三篇：MyBatis集成配置，自动生成代码配置）
SpringBoot入门实战（第四篇：Redis集成配置）
SpringBoot入门实战（第五篇：项目接口-用户管理）
SpringBoot入门实战（第六篇：项目接口-登录）
SpringBoot入门实战（第七篇：项目接口-商品管理）
SpringBoot入门实战（第八篇：项目接口-订单管理）完结篇
SpringBoot入门实战（项目搭建、配置、功能接口实现等一篇通关）

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1. 环境准备

• Java环境配置：Java JDK 下载安装和配置环境变量
• Maven安装和配置：Maven安装配置教程（精简版）
• 开发工具-IDEA社区版：IntelliJ IDEA Community 下载安装和使用指南
• IDEA配置maven仓库：IDEA配置MAVEN本地仓库

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2. 项目创建和初始化

使用IDEA开发工具创建spring boot项目

2.1 创建项目

打开idea社区版
左上角菜单栏打开，选择File—New—Project...

创建界面如下（默认打开的界面）

按照顺序定义或者修改配置参数

• 1 新建项目类型 默认Java
• 2 项目名称（Name） 默认untitled 自定义为sb_demo
• 3-4 项目位置（Location） 自定义项目位置，下方一行提示信息中会有创建后的项目路径
• 5 构建系统（Build system） 默认Maven，如果不是，则选择Maven
• 6 Java JDK选择（JDK） 选择自己安装的JDK版本，这里选择的是1.8版本
• 7 新增示例代码（Add sample code） 默认不勾选，这里无需示例代码
• 8 项目组织架构（Advanced Settings）
  GroupId默认org.example这里自定义为com.xh
  ArtifactId默认项目名称，这里无需修改
• 9 最后选择Create创建项目

参数配置后如下
创建后的项目界面如下

2.2 项目依赖配置

配置spring boot相关依赖，这里直接配置三个依赖，分别对应spring boot的依赖、lombok依赖、fastjson依赖。

注1：lombok依赖通过注解方式简化样板代码的编写，可自动生成getter、setter、构造函数、toString等方法
注2：fastjson依赖是为了实现Java对象和json格式字符转之间的相互转换

在pom.xml中配置如下代码

        <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><version>2.7.18</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.30</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.83</version></dependency>

配置后的完整代码
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 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.xh</groupId><artifactId>sb_demo</artifactId><version>1.0-SNAPSHOT</version><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><version>2.7.18</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.30</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.83</version></dependency></dependencies></project>

配置依赖后不要忘了右上角maven刷新按钮点一下
如图

2.3 项目包结构预设

提前创建项目的包结构，这里简单创建几个常用包，后续有需要可继续新建包
打开src/main/java包，在Java包下创建如下包

com.xh.user
com.xh.product
com.xh.analystic

创建后如下

2.4 项目启动类创建

在com.xh包下创建启动类
SbApplication.java

package com.xh;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;/*** @func: 项目启动类* @author: LiBai* @version: v1.0* @createTime: 2025/4/10 10:45*/
@SpringBootApplication
public class SbApplication {public static void main(String[] args) {SpringApplication.run(SbApplication.class, args);}}

2.5 启动项目

鼠标选中启动类文件右键选择Run’SbApplication()'执行项目

如下，表示项目正常启动，一切配位配置的参数都为默认，如默认端口8080

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3. 配置文件（application.yml）

在src/main/resources包下创建文件application.yml（右键New—File，然后填写文件名，带后缀）

在application.yml中配置端口号如下

server:port: 8088

配置后重启服务，右上角有启动类名和绿色启动按钮，现在项目正在运行，直接点击可重启

服务端口即变为8088
如下

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4. 数据库MySQL集成

4.1 依赖引入

pom.xml中引入所需依赖

        <dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.31</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId><version>2.7.18</version></dependency>

引入后重新加载依赖
完整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 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.xh</groupId><artifactId>sb_demo</artifactId><version>1.0-SNAPSHOT</version><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><version>2.7.18</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.30</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.83</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.31</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId><version>2.7.18</version></dependency></dependencies></project>

4.2 参数配置

在配置文件application.yml中配置MySQL连接参数
localhost是本机地址，也可换成远程IP地址
3306是端口号，根据自己mysql服务配置
sb_demo是数据库名称，根据自己数据名称配置

spring:datasource:url: jdbc:mysql://localhost:3306/sb_demo?useUnicode=true&characterEncoding=utf-8&useSSL=falsedriver-class-name: com.mysql.cj.jdbc.Driverusername: rootpassword: 1234

完整application.yml

server:port: 8088spring:datasource:url: jdbc:mysql://localhost:3306/sb_demo?useUnicode=true&characterEncoding=utf-8&useSSL=falsedriver-class-name: com.mysql.cj.jdbc.Driverusername: rootpassword: 1234

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5. 数据库框架MyBatis集成（自动生成代码配置）

5.1 依赖引入

引入相关依赖和插件
依赖部分

        <dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>2.2.2</version></dependency>

插件部分

	 <build><finalName>app</finalName><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId>
<!--                <version>2.3.4.RELEASE</version>--></plugin><!--添加mybatis generator maven插件--><plugin><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator-maven-plugin</artifactId><version>1.3.7</version><configuration><!--generatorConfig.xml位置--><configurationFile>src/main/resources/generatorConfig.xml</configurationFile><verbose>true</verbose><!--                    如果本来就有mapper、dao文件了就覆盖--><overwrite>true</overwrite></configuration><executions><execution><id>Generate MyBatis Artifacts</id><phase>deploy</phase><goals><goal>generate</goal></goals></execution></executions><!--此处必须添加mysql驱动包--><dependencies><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><scope>runtime</scope><version>8.0.31</version></dependency></dependencies></plugin></plugins><resources><resource><directory>src/main/java</directory><includes><include>**/*.csv</include><include>**/*.yml</include><include>**/*.xml</include><include>**/*.properties</include><include>**/*.json</include><include>**/*.js</include></includes><filtering>false</filtering></resource><resource><directory>src/main/resources</directory><includes><include>**/*.csv</include><include>**/*.yml</include><include>**/*.xml</include><include>**/*.properties</include><include>**/*.json</include><include>**/*.js</include></includes><filtering>false</filtering></resource></resources></build>

引入后完整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 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.xh</groupId><artifactId>sb_demo</artifactId><version>1.0-SNAPSHOT</version><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><version>2.7.18</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.30</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.83</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.31</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId><version>2.7.18</version></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>2.2.2</version>
<!--            <version>1.3.2</version>--></dependency></dependencies><build><finalName>app</finalName><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId>
<!--                <version>2.3.4.RELEASE</version>--></plugin><!--添加mybatis generator maven插件--><plugin><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator-maven-plugin</artifactId><version>1.3.7</version><configuration><!--generatorConfig.xml位置--><configurationFile>src/main/resources/generatorConfig.xml</configurationFile><verbose>true</verbose><!--                    如果本来就有mapper、dao文件了就覆盖--><overwrite>true</overwrite></configuration><executions><execution><id>Generate MyBatis Artifacts</id><phase>deploy</phase><goals><goal>generate</goal></goals></execution></executions><!--此处必须添加mysql驱动包--><dependencies><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><scope>runtime</scope><version>8.0.31</version></dependency></dependencies></plugin></plugins><resources><resource><directory>src/main/java</directory><includes><include>**/*.csv</include><include>**/*.yml</include><include>**/*.xml</include><include>**/*.properties</include><include>**/*.json</include><include>**/*.js</include></includes><filtering>false</filtering></resource><resource><directory>src/main/resources</directory><includes><include>**/*.csv</include><include>**/*.yml</include><include>**/*.xml</include><include>**/*.properties</include><include>**/*.json</include><include>**/*.js</include></includes><filtering>false</filtering></resource></resources></build></project>

5.2 代码生成配置（generatorConfig.xml）

自动生成代码的配置文件在resources包下创建generatorConfig.xml
内容如下

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfigurationPUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN""http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"><generatorConfiguration><properties resource="jdbc.properties"/><context id="sqlserverTables" targetRuntime="MyBatis3"><!-- 生成的pojo，将implements Serializable--><plugin type="org.mybatis.generator.plugins.SerializablePlugin"></plugin><!--替换默认生成的dao-Example--><plugin type="org.mybatis.generator.plugins.RenameExampleClassPlugin"><property name="searchString" value="Example$" /><property name="replaceString" value="Impl" /></plugin><commentGenerator><!-- 是否去除自动生成的注释 true：是 ： false:否 --><property name="suppressAllComments" value="true" /></commentGenerator><!-- 数据库链接URL、用户名、密码 --><jdbcConnection driverClass="${spring.datasource.driverClassName}"connectionURL="${spring.datasource.url}"userId="${spring.datasource.username}"password="${spring.datasource.password}"></jdbcConnection><!--默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer--><!--true，把JDBC DECIMAL 和 NUMERIC 类型解析为java.math.BigDecimal--><javaTypeResolver><property name="forceBigDecimals" value="false" /></javaTypeResolver><!--生成model模型，对应的包路径，以及文件存放路径(targetProject)，targetProject可以指定具体的路径,如./src/main/java，--><!--也可以使用“MAVEN”来自动生成，这样生成的代码会在target/generatord-source目录下--><!--<javaModelGenerator targetPackage="com.joey.mybaties.test.pojo" targetProject="MAVEN">--><!--<javaModelGenerator targetPackage="${daopackage}" targetProject="./src/main/java">--><javaModelGenerator targetPackage="${daopackage}" targetProject="./src/main/java"><property name="enableSubPackages" value="true"/><!-- 从数据库返回的值被清理前后的空格  --><property name="trimStrings" value="true" /></javaModelGenerator><!--对应的mapper.xml文件  --><sqlMapGenerator targetPackage="${daopackage}" targetProject="./src/main/java"><property name="enableSubPackages" value="true"/></sqlMapGenerator><!-- 对应的Mapper接口类文件 --><javaClientGenerator type="XMLMAPPER" targetPackage="${daopackage}" targetProject="./src/main/java"><property name="enableSubPackages" value="true"/></javaClientGenerator><table tableName="${tableName}"enableCountByExample="false"enableUpdateByExample="true"enableDeleteByExample="true"enableSelectByExample="true"selectByExampleQueryId="false"><property name="useActualColumnNames" value="false"/></table></context>
</generatorConfiguration>

5.3 数据库配置文件jdbc.properties

resources包下创建文件jdbc.properties

spring.datasource.driverLocation=mysql-connector-java-8.0.21.jar
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/sb_demo?useUnicode=true&characterEncoding=utf-8&useSSL=false
spring.datasource.username=root
spring.datasource.password=1234daopackage = com.user.dao
tableName = tb_user

其中daopackage是生成代码后存储的位置
tableName是表名

5.4 建表

在MySQL表中新建用户表tb_user
建表语句

CREATE TABLE tb_user(id INT AUTO_INCREMENT PRIMARY KEY,username VARCHAR(255) NOT NULL COMMENT "密码",pass_word VARCHAR(255) NOT NULL COMMENT "账号",gender VARCHAR(255) NOT NULL COMMENT "性别",address VARCHAR(255) NOT NULL COMMENT "地址",p_number VARCHAR(255) NOT NULL COMMENT "手机号",vip_class INT DEFAULT 0 COMMENT "vip等级，共4级，0-1-2-3"
);

执行后建表完成

5.5 生成代码

修改jdbc.properties中的daopackage和tableName，然后到IDEA工具找到Maven工具窗口，一般在右侧
打开sb_demo—Plugins—mybatis-generator—mybatis-generator:generate，如下（双击即可）

生成成功的控制台界面

或者在终端窗口（Terminal）使用maven命令

mvn mybatis-generator:generate

生成的代码文件如下

5.6 添加注解

分别对TbUser.java、TbUserImpl.java、TbUserMapper.interface添加注解
TbUser.java添加@Component注解

TbUserImpl.java添加@Service注解

TbUserMapper.interface添加@Mapper注解

完成以上即可进行数据库表相关操作的代码编写

5.7 调用测试

代码编写：
编写接口进行数据添加
在user包下创建controller包，并在controller包下新建Java代码
代码如下

package com.user.controller;import com.alibaba.fastjson.JSONObject;
import com.user.dao.TbUser;
import com.user.dao.TbUserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;/*** @func:* @author: LiBai* @version: v1.0* @createTime: 2025/4/16 15:36*/
@RestController
@RequestMapping(value = "/xh/v1/user")
public class UserAddTest {@AutowiredTbUserMapper tbUserMapper;@PostMapping(value = "/addUser")public JSONObject addUser(@RequestBody JSONObject requestBody){System.out.println("add user info ----> ");TbUser tbUser = new TbUser();tbUser.setUsername(requestBody.getString("username"));tbUser.setPassWord(requestBody.getString("passWord"));tbUser.setGender(requestBody.getString("gender"));tbUser.setAddress(requestBody.getString("address"));tbUser.setpNumber(requestBody.getString("pNumber"));tbUser.setVipClass(requestBody.getInteger("vipClass"));tbUserMapper.insert(tbUser);return requestBody;}}

接口调用：
postman调用接口
URL地址

127.0.0.1:8088/xh/v1/user/addUser

请求体内容

{"username":"libai","passWord":"352894","gender":"男","address":"上海市浦东新区","pNumber":"13122993366","vipClass":2
}

如下（postman中截图）

数据查看：
在mysql表中查看数据是否成功添加

mysql可用，生成代码可用

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6. 数据库Redis集成

6.1 依赖引入（pom.xml）

所需依赖

        <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId><version>2.7.18</version></dependency>

6.2 参数配置（application.yml）

配置文件中配置redis相关参数
application.yml

spring:redis:host: 127.0.0.1port: 6379password: xh.1234database: 0jedis:pool:max-idle: 8min-idle: 1max-active: 8max-wait: -1timeout: 20000

6.3 配置类（RedisConfig.java）

在com.xh.common.config包下创建redis配置类RedisConfig.java

package com.xh.common.config;import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;/*** @func:* @author: LiBai* @version: v1.0* @createTime: 2025/4/17 9:47*/
@Configuration
public class RedisConfig {@Bean@SuppressWarnings("all")public RedisTemplate<String,Object> redisTemplate(RedisConnectionFactory connectionFactory){RedisTemplate<String, Object> template = new RedisTemplate<>();template.setConnectionFactory(connectionFactory);StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();template.setKeySerializer(stringRedisSerializer);template.setValueSerializer(stringRedisSerializer);GenericJackson2JsonRedisSerializer genericJackson2JsonRedisSerializer = new GenericJackson2JsonRedisSerializer();template.setHashKeySerializer(stringRedisSerializer);template.setHashValueSerializer(genericJackson2JsonRedisSerializer);template.afterPropertiesSet();return template;}
}

6.4 工具类（RedisUtils.java）

在com.xh.common.utils包下创建Redis工具类RedisUtils.java

package com.xh.common.utils;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
import org.springframework.util.CollectionUtils;
import javax.annotation.PostConstruct;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;/*** @func:* @author: LiBai* @version: v1.0* @createTime: 2025/4/17 9:46*/
@Component
public class RedisUtils {@AutowiredRedisTemplate<String, Object> redisTemplate;public static RedisTemplate<String, Object> _redisTemplate;@PostConstructpublic void init(){_redisTemplate = redisTemplate;}// =============================common============================/** 设置失效时间 */public static void setexpire(String key, long time) {_redisTemplate.expire(key, time, TimeUnit.SECONDS);}/** 获取过期时间 */public static long getexpire(String key) {return _redisTemplate.getExpire(key, TimeUnit.SECONDS);}/** 判断key是否存在 */public static boolean haskey(String key) {return _redisTemplate.hasKey(key);}/** 查询key */public static Set<String> search(String keyword){return _redisTemplate.keys(keyword);}/** 删除key */@SuppressWarnings("unchecked")public static void delete(String... key) {if (key.length == 1) {_redisTemplate.delete(key[0]);} else {_redisTemplate.delete((Collection<String>) CollectionUtils.arrayToList(key));}}// =============================String============================/** 获取普通类型缓存 */public static Object get(String key) {return key == null ? null : _redisTemplate.opsForValue().get(key);}/** 设置普通类型缓存 */public static void set(String key, Object value) {_redisTemplate.opsForValue().set(key, value);}/** 设置普通类型缓存 带失效时间*/public static void set(String key, Object value, long time) {_redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS);}// =============================Hash==============================/** 从hashmap中返回键位item的值 */public static Object hget(String key, String item) {return _redisTemplate.opsForHash().get(key, item);}/** 向hashmap写入一个键值对 */public static void hset(String key, String item, Object value) {_redisTemplate.opsForHash().put(key, item, value);}/** 从hashmap中删除名为item的key */public static void hremove(String key, Object... item) {_redisTemplate.opsForHash().delete(key, item);}/** 判断hashmap里面是否包含item的key */public static boolean hhasitem(String key, String item) {return _redisTemplate.opsForHash().hasKey(key, item);}/** 一次性从hashmap中返回所有的键值对 */public static Map<Object, Object> hmget(String key) {return _redisTemplate.opsForHash().entries(key);}/** 向hashmap写入多个个键值对 */public static void hmset(String key, Map<String, Object> map) {_redisTemplate.opsForHash().putAll(key, map);}// =============================List==============================/** 返回一个list的长度 */public static long lgetsize(String key) {return _redisTemplate.opsForList().size(key);}/** 返回一个list 给定开始index和结束index */public static List<Object> lget(String key, long start, long end) {return _redisTemplate.opsForList().range(key, start, end);}/*** jwh-20241022-获取列表第一个元素并从redis中移除* @param key redis数据的键* @return 返回移除的数据*/public static Object lGetPop(String key) {return _redisTemplate.opsForList().leftPop(key);}/** 通过索引index获取list中的值 index>=0时， 0 表头，1 第二个元素，依次类推；index<0时，-1，表尾，-2倒数第二个元素 */public static Object lgetindex(String key, long index) {return _redisTemplate.opsForList().index(key, index);}/** 将list放入缓存 */public static void lset(String key, Object value) {_redisTemplate.opsForList().rightPush(key, value);}/** 将list放入缓存 */public static void lset(String key, List<Object> value) {_redisTemplate.opsForList().rightPushAll(key, value);}/** 根据索引修改list中的某条数据 */public static void lupdateindex(String key, long index, Object value) {_redisTemplate.opsForList().set(key, index, value);}/** 移除N个值为value */public static long lRemove(String key, long count, Object value) {return _redisTemplate.opsForList().remove(key, count, value);}// =============================Set===============================/** 获取set的长度 */public static long sgetsetsize(String key) {return _redisTemplate.opsForSet().size(key);}/** 获取set中的全部元素 */public static Set<Object> sget(String key) {return _redisTemplate.opsForSet().members(key);}/** 判断set中是否包含value */public static boolean shaskey(String key, Object value) {return _redisTemplate.opsForSet().isMember(key, value);}/** set中添加对象*/public static long sset(String key, Object... values) {return _redisTemplate.opsForSet().add(key, values);}/** 删除set中的values元素*/public static long sremove(String key, Object... values) {return _redisTemplate.opsForSet().remove(key, values);}}

6.5 接口代码

创建接口，新增数据到redis中，以存储字符串类型数据为例
com.xh.user.controller包下创建RedisTest.java

package com.xh.user.controller;import com.alibaba.fastjson.JSONObject;
import com.xh.common.utils.RedisUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;/*** @func:* @author: LiBai* @version: v1.0* @createTime: 2025/4/17 9:59*/
@RestController
@RequestMapping(value = "/xh/v1/redis")
public class RedisTest {@RequestMapping(value = "/strAdd")public JSONObject strAdd(){RedisUtils.set("RedisTest001","this is a test for redis util");System.out.println("this is a test for redis util");return null;}
}

6.6 调用测试

请求地址

127.0.0.1:8088/xh/v1/redis/strAdd

请求参数为空

调用后并查看redis客户端

可以看到数据已存入，其余方法类似

以上就是spring boot集成redis内容

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7. 项目接口

完成以上配置集成，可进行项目接口编写

7.1 用户管理接口

在com.xh.user.controller包下创建用户管理类UserInfoController.java

7.1.1 UserInfoController.java

UserInfoController.java代码

package com.xh.user.controller;import com.alibaba.fastjson.JSONObject;
import com.xh.user.dao.TbUser;
import com.xh.user.dao.TbUserImpl;
import com.xh.user.dao.TbUserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;import java.util.List;/*** @func:* @author: LiBai* @version: v1.0* @createTime: 2025/4/17 10:53*/
@CrossOrigin
@RestController
@RequestMapping(value = "/xh/v1/user")
public class UserInfoController {@AutowiredTbUserMapper tbUserMapper;@RequestMapping(value = "/addUserInfo")public JSONObject addUserInfo(@RequestBody JSONObject requestBody){TbUser tbUser = JSONObject.parseObject(requestBody.toJSONString(), TbUser.class);tbUserMapper.insert(tbUser);JSONObject result = new JSONObject();result.put("code", 200);result.put("data", requestBody);result.put("msg", "新增用户数据");return result;}@GetMapping(value = "/readUserInfo")public JSONObject readUserInfo(){TbUserImpl tbUserImpl = new TbUserImpl();List<TbUser> tbUsers = tbUserMapper.selectByExample(tbUserImpl);JSONObject result = new JSONObject();if (!tbUsers.isEmpty()){result.put("code", 200);result.put("data", tbUsers);result.put("msg", "查询所有用户数据");}else{result.put("code", 4000);result.put("data", "");result.put("msg", "数据为空");}return result;}@PutMapping(value = "/changeUserInfo")public JSONObject changeUserInfo(@RequestBody JSONObject requestBody){String username = requestBody.getString("username");TbUserImpl tbUserImpl = new TbUserImpl();TbUserImpl.Criteria criteria = tbUserImpl.createCriteria();criteria.andUsernameEqualTo(username);List<TbUser> tbUsers = tbUserMapper.selectByExample(tbUserImpl);JSONObject result = new JSONObject();if (!tbUsers.isEmpty()){// 这里使用updateByExampleSelective// 不能使用updateByExample，不然必须要含有id参数才能插入成功tbUserMapper.updateByExampleSelective(JSONObject.parseObject(requestBody.toJSONString(),TbUser.class), tbUserImpl);result.put("code", 200);result.put("data", requestBody);result.put("msg", "修改用户数据");return result;}else {result.put("code", 4000);result.put("data", "");result.put("msg", "修改用户数据失败，未找到对应数据");return result;}}@DeleteMapping(value = "/removeUserInfo")public JSONObject removeUserInfo(@RequestBody JSONObject requestBody){String username = requestBody.getString("username");TbUserImpl tbUserImpl = new TbUserImpl();TbUserImpl.Criteria criteria = tbUserImpl.createCriteria();criteria.andUsernameEqualTo(username);List<TbUser> tbUsers = tbUserMapper.selectByExample(tbUserImpl);JSONObject result = new JSONObject();if (!tbUsers.isEmpty()){tbUserMapper.deleteByExample(tbUserImpl);result.put("code", 200);result.put("data", requestBody);result.put("msg", "删除用户数据");return result;}else {result.put("code", 4000);result.put("data", "");result.put("msg", "删除用户数据失败，未找到对应数据");return result;}}}

7.1.2 接口测试

添加数据（注册账号）
url

127.0.0.1:8088/xh/v1/user/addUserInfo

请求类型

POST

请求参数

{"username":"baijuyi","passWord":"965825","gender":"男","address":"上海市长宁区","pNumber":"18898985858","vipClass":1
}

postman截图

查询数据
url

127.0.0.1:8088/xh/v1/user/readUserInfo

请求类型

GET

请求参数 空

postman截图

更新数据
url

127.0.0.1:8088/xh/v1/user/updateUserInfo

请求类型

PUT

请求参数

{"username":"baijuyi","passWord":"965825","gender":"男","address":"上海市杨浦区","pNumber":"18898985858","vipClass":1
}

postman截图

移除数据
url

127.0.0.1:8088/xh/v1/user/removeUserInfo

请求类型

DELETE

请求参数

{"username":"libai"
}

postman截图

7.2 登录接口

在com.xh.user.controller包下创建类UserLogin.java

7.2.1 UserLogin.java

UserLogin.java代码

package com.xh.user.controller;import com.alibaba.fastjson.JSONObject;
import com.xh.user.dao.TbUser;
import com.xh.user.dao.TbUserImpl;
import com.xh.user.dao.TbUserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;/*** @func:* @author: LiBai* @version: v1.0* @createTime: 2025/4/17 10:33*/
@CrossOrigin
@RestController
@RequestMapping(value = "/xh/v1/user")
public class UserLoginController {@AutowiredTbUserMapper tbUserMapper;@RequestMapping(value = "/login")public JSONObject login(@RequestBody JSONObject requestBody){String username = requestBody.getString("username");String passWord = requestBody.getString("passWord");TbUserImpl tbUserImpl = new TbUserImpl();TbUserImpl.Criteria criteria = tbUserImpl.createCriteria();criteria.andUsernameEqualTo(username);criteria.andPassWordEqualTo(passWord);List<TbUser> tbUsers = tbUserMapper.selectByExample(tbUserImpl);JSONObject result = new JSONObject();if (!tbUsers.isEmpty()){result.put("code", 200);result.put("data", tbUsers.get(0));result.put("msg", "账号密码正确，校验通过");return result;}else{result.put("code", 4000);result.put("data", "");result.put("msg", "账号密码错误，校验未通过，请确认账号密码并重新输入");return result;}}
}

注意，登录前必须先注册，注册接口包含在下一步的用户管理类中

7.2.2 接口测试

url

127.0.0.1:8088/xh/v1/user/login

请求类型

POST

请求参数

{"username":"libai","passWord":"352894"
}

postman截图

7.3 商品管理接口

商品管理部分

7.3.1 建表

创建商品表tb_goods

CREATE TABLE tb_goods(id INT AUTO_INCREMENT PRIMARY KEY,g_id INT NOT NULL COMMENT "商品id",g_name VARCHAR(255) NOT NULL COMMENT "商品名称",g_category VARCHAR(255) NOT NULL COMMENT "商品分类",g_price DOUBLE NOT NULL COMMENT "商品价格",g_inventory INT NOT NULL COMMENT "商品库存",g_status VARCHAR(255) NOT NULL COMMENT "商品状态"
);

7.3.2 接口创建（GoodsInfoController.java）

原来项目的商品包名叫product，不是很准确，现在改成goods
在com.xh.goods.dao包下根据表tb_goods生成代码，配置好注解后
在com.xh.goods.controller包下创建商品管理类GoodsInfoController.java
代码如下

package com.xh.goods.controller;import com.alibaba.fastjson.JSONObject;
import com.xh.goods.dao.TbGoods;
import com.xh.goods.dao.TbGoodsImpl;
import com.xh.goods.dao.TbGoodsMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;import java.util.List;/*** @func:* @author: LiBai* @version: v1.0* @createTime: 2025/4/18 10:55*/
@CrossOrigin
@RestController
@RequestMapping(value = "/xh/v1/goods")
public class GoodsInfoController {@AutowiredTbGoodsMapper tbGoodsMapper;@PostMapping(value = "/addGoodsInfo")public JSONObject addGoodsInfo(@RequestBody JSONObject requestBody){String gName = requestBody.getString("gName");TbGoodsImpl tbGoodsImpl = new TbGoodsImpl();TbGoodsImpl.Criteria criteria = tbGoodsImpl.createCriteria();criteria.andGNameEqualTo(gName);List<TbGoods> tbGoodsList = tbGoodsMapper.selectByExample(tbGoodsImpl);JSONObject result = new JSONObject();if (tbGoodsList.isEmpty()){tbGoodsMapper.insert(JSONObject.parseObject(requestBody.toJSONString(),TbGoods.class));result.put("code", 200);result.put("data", requestBody);result.put("msg", "新增商品信息");}else{result.put("code", 4000);result.put("data", "");result.put("msg", "新增商品信息失败，此商品数据已存在");}return result;}@GetMapping(value = "/readGoodsInfo")public JSONObject readGoodsInfo(){TbGoodsImpl tbGoodsImpl = new TbGoodsImpl();List<TbGoods> tbGoodsList = tbGoodsMapper.selectByExample(tbGoodsImpl);JSONObject result = new JSONObject();if (!tbGoodsList.isEmpty()){result.put("code", 200);result.put("data", tbGoodsList);result.put("msg", "查询商品信息");}else{result.put("code", 4000);result.put("data", "");result.put("msg", "查询商品信息失败，无商品数据");}return result;}@PutMapping(value = "/changeGoodsInfo")public JSONObject changeGoodsInfo(@RequestBody JSONObject requestBody){int gId = requestBody.getInteger("gId");TbGoodsImpl tbGoodsImpl = new TbGoodsImpl();TbGoodsImpl.Criteria criteria = tbGoodsImpl.createCriteria();criteria.andGIdEqualTo(gId);List<TbGoods> tbGoodsList = tbGoodsMapper.selectByExample(tbGoodsImpl);JSONObject result = new JSONObject();if (!tbGoodsList.isEmpty()){tbGoodsMapper.updateByExampleSelective(JSONObject.parseObject(requestBody.toJSONString(), TbGoods.class),tbGoodsImpl);result.put("code", 200);result.put("data", requestBody);result.put("msg", "更新商品数据");}else{result.put("code", 4000);result.put("data", "");result.put("msg", "更新商品数据失败，无此商品数据");}return result;}@DeleteMapping(value = "/removeGoodsInfo")public JSONObject removeGoodsInfo(@RequestBody JSONObject requestBody){int gId = requestBody.getInteger("gId");TbGoodsImpl tbGoodsImpl = new TbGoodsImpl();TbGoodsImpl.Criteria criteria = tbGoodsImpl.createCriteria();criteria.andGIdEqualTo(gId);List<TbGoods> tbGoodsList = tbGoodsMapper.selectByExample(tbGoodsImpl);JSONObject result = new JSONObject();if (!tbGoodsList.isEmpty()){tbGoodsMapper.deleteByExample(tbGoodsImpl);result.put("code", 200);result.put("data", requestBody);result.put("msg", "删除商品数据");}else{result.put("code", 4000);result.put("data", "");result.put("msg", "删除商品数据失败，无此商品数据");}return result;}
}

7.3.3 接口测试

新增商品数据
url

127.0.0.1:8088/xh/v1/goods/addGoodsInfo

请求类型

POST

请求参数

{"gId": 100001,"gName": "海洋至尊洗面奶","gCategory": "护肤品","gPrice": 46.90,"gInventory": 98,"gStatus": "上架"}

postman截图

查询商品数据
url

127.0.0.1:8088/xh/v1/goods/readGoodsInfo

请求类型

GET

请求参数 空

postman截图

更新商品数据
url

127.0.0.1:8088/xh/v1/goods/updateGoodsInfo

请求类型

PUT

请求参数

{"gId": 100002,"gName": "韩束男士补水保湿乳","gCategory": "护肤品","gPrice": 90.98,"gInventory": 58,"gStatus": "上架"}

postman截图

移除商品数据
url

127.0.0.1:8088/xh/v1/goods/removeGoodsInfo

请求类型

DELETE

请求参数

{"gId":"100001"
}

postman截图

7.4 订单管理接口

7.4.1 建表

创建商品表tb_order

CREATE TABLE tb_order(id INT AUTO_INCREMENT PRIMARY KEY,o_id INT NOT NULL COMMENT "订单号（订单id）",username VARCHAR(255) NOT NULL COMMENT "客户名称",o_price DOUBLE NOT NULL COMMENT "订单价格",o_time VARCHAR(255) NOT NULL COMMENT "下单时间",o_status VARCHAR(255) NOT NULL COMMENT "订单状态"
);

7.4.2 接口创建（OrderInfoController.java）

在com.xh.order.dao包下根据表tb_order生成代码，配置好注解后
在com.xh.order.controller包下创建商品管理类OrderInfoController.java
代码如下

package com.xh.order.controller;import com.alibaba.fastjson.JSONObject;
import com.xh.order.dao.TbOrder;
import com.xh.order.dao.TbOrderImpl;
import com.xh.order.dao.TbOrderMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;import java.util.List;/*** @func:* @author: LiBai* @version: v1.0* @createTime: 2025/4/18 14:10*/
@CrossOrigin
@RestController
@RequestMapping(value = "/xh/v1/order")
public class OrderInfoController {@AutowiredTbOrderMapper tbOrderMapper;@PostMapping(value = "/addOrderInfo")public JSONObject addOrderInfo(@RequestBody JSONObject requestBody){TbOrderImpl tbOrderImpl = new TbOrderImpl();TbOrderImpl.Criteria criteria = tbOrderImpl.createCriteria();criteria.andOIdEqualTo(requestBody.getString("oId"));List<TbOrder> tbOrders = tbOrderMapper.selectByExample(tbOrderImpl);JSONObject result = new JSONObject();if (tbOrders.isEmpty()){tbOrderMapper.insert(JSONObject.parseObject(requestBody.toJSONString(), TbOrder.class));result.put("code", 200);result.put("data", requestBody);result.put("msg", "新增订单数据");}else{result.put("code", 4000);result.put("data", "");result.put("msg", "新增订单数据失败，此订单数据已存在");}return result;}@GetMapping(value = "/readOrderInfo")public JSONObject readOrderInfo(){TbOrderImpl tbOrderImpl = new TbOrderImpl();List<TbOrder> tbOrders = tbOrderMapper.selectByExample(tbOrderImpl);JSONObject result = new JSONObject();if (!tbOrders.isEmpty()){result.put("code", 200);result.put("data", tbOrders);result.put("msg", "查询订单数据");}else{result.put("code", 4000);result.put("data", "");result.put("msg", "查询订单数据失败，未查询到订单数据");}return result;}@PutMapping(value = "/changeOrderInfo")public JSONObject changeOrderInfo(@RequestBody JSONObject requestBody){TbOrderImpl tbOrderImpl = new TbOrderImpl();TbOrderImpl.Criteria criteria = tbOrderImpl.createCriteria();criteria.andOIdEqualTo(requestBody.getString("oId"));List<TbOrder> tbOrders = tbOrderMapper.selectByExample(tbOrderImpl);JSONObject result = new JSONObject();if (!tbOrders.isEmpty()){tbOrderMapper.updateByExampleSelective(JSONObject.parseObject(requestBody.toJSONString(), TbOrder.class),tbOrderImpl);result.put("code", 200);result.put("data", requestBody);result.put("msg", "更新订单数据");}else{result.put("code", 4000);result.put("data", "");result.put("msg", "更新订单数据失败，未查询到此订单数据");}return result;}@DeleteMapping(value = "/removeOrderInfo")public JSONObject removeOrderInfo(@RequestBody JSONObject requestBody){TbOrderImpl tbOrderImpl = new TbOrderImpl();TbOrderImpl.Criteria criteria = tbOrderImpl.createCriteria();criteria.andOIdEqualTo(requestBody.getString("oId"));List<TbOrder> tbOrders = tbOrderMapper.selectByExample(tbOrderImpl);JSONObject result = new JSONObject();if (!tbOrders.isEmpty()){tbOrderMapper.deleteByExample(tbOrderImpl);result.put("code", 200);result.put("data", requestBody);result.put("msg", "移除订单数据");}else{result.put("code", 4000);result.put("data", "");result.put("msg", "移除订单数据失败，此订单数据不存在");}return result;}}

7.4.3 接口测试

新增商品数据
url

127.0.0.1:8088/xh/v1/order/addOrderInfo

请求类型

POST

请求参数

{"oId": "20250418152634000001","username": "libai","oPrice": 121.20,"oTime": "2025-04-18,15:26:34","oStatus": "配送中"}

postman截图

查询商品数据
url

127.0.0.1:8088/xh/v1/order/readOrderInfo

请求类型

GET

请求参数 空

postman截图

更新商品数据
url

127.0.0.1:8088/xh/v1/order/updateOrderInfo

请求类型

PUT

请求参数

{"oId": "20250418154624000002","username": "liqingzhao","oPrice": 166.89,"oTime": "2025-04-18,15:46:24","oStatus": "未配送"}

postman截图

移除商品数据
url

127.0.0.1:8088/xh/v1/order/removeOrderInfo

请求类型

DELETE

请求参数

{"oId": "20250418154624000002"}

postman截图

以上就是入门实战全部内容

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