系列文章目录
spring boot专题(一)——spring boot快速上手
spring boot专题(二)——spring boot整合第三方插件
spring boot专题(三)——自定义starter
spring boot专题(四)——spring boot源码深入分析
spring boot专题(二)——spring boot整合第三方插件
springboot整合druid +监控
案例
1.创建子模块springboot_jdbc,并引入依赖
<?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">
<parent>
<artifactId>springboottest</artifactId>
<groupId>org.example</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>springboot_jdbc</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.10</version>
</dependency>
<!--自定义属性绑定配置-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
</project>
2.application.yaml配置druid的数据源属性
spring:
datasource:
druid:
username: root
password: 1234
jdbcUrl: jdbc:mysql://localhost:3306/test
driverClassName: com.mysql.jdbc.Driver
initialSize: 5
minIdle: 5
maxActive: 20
maxWait: 60000
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: SELECT 1 FROM DUAL
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: true
# 配置监控统计拦截的filters,去掉后监控界面sql无法统计,'wall'用于防火墙
filters: stat,wall,log4j
maxPoolPreparedStatementPerConnectionSize: 20
useGlobalDataSourceStat: true
connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
3.对数据库属性进行一一映射
package com.yemuxia.properties;
import org.springframework.boot.context.properties.ConfigurationProperties;
@ConfigurationProperties(prefix = "spring.datasource.druid") //扫描配置类的属性前缀
public class DruidDataSourceProperties {
private String username;
private String password;
private String jdbcUrl;
private String driverClassName;
private Integer initialSize;
private Integer maxActive;
private Integer minIdle;
private long maxWait;
private boolean poolPreparedStatements;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getJdbcUrl() {
return jdbcUrl;
}
public void setJdbcUrl(String jdbcUrl) {
this.jdbcUrl = jdbcUrl;
}
public String getDriverClassName() {
return driverClassName;
}
public void setDriverClassName(String driverClassName) {
this.driverClassName = driverClassName;
}
public Integer getInitialSize() {
return initialSize;
}
public void setInitialSize(Integer initialSize) {
this.initialSize = initialSize;
}
public Integer getMaxActive() {
return maxActive;
}
public void setMaxActive(Integer maxActive) {
this.maxActive = maxActive;
}
public Integer getMinIdle() {
return minIdle;
}
public void setMinIdle(Integer minIdle) {
this.minIdle = minIdle;
}
public long getMaxWait() {
return maxWait;
}
public void setMaxWait(long maxWait) {
this.maxWait = maxWait;
}
public boolean isPoolPreparedStatements() {
return poolPreparedStatements;
}
public void setPoolPreparedStatements(boolean poolPreparedStatements) {
this.poolPreparedStatements = poolPreparedStatements;
}
}
4.创建一个druid的配置类
package com.yemuxia.config;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import com.yemuxia.properties.DruidDataSourceProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import javax.sql.DataSource;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
@Configuration
@EnableConfigurationProperties(value = DruidDataSourceProperties.class)
public class DruidDataSourceConfig {
@Autowired
private DruidDataSourceProperties druidDataSourceProperties;
@Bean
public DataSource dataSource() {
System.out.println(druidDataSourceProperties);
DruidDataSource druidDataSource = new DruidDataSource();
druidDataSource.setUsername(druidDataSourceProperties.getUsername());
druidDataSource.setPassword(druidDataSourceProperties.getPassword());
druidDataSource.setUrl(druidDataSourceProperties.getJdbcUrl());
druidDataSource.setDriverClassName(druidDataSourceProperties.getDriverClassName());
druidDataSource.setInitialSize(druidDataSourceProperties.getInitialSize());
druidDataSource.setMinIdle(druidDataSourceProperties.getMinIdle());
druidDataSource.setMaxActive(druidDataSourceProperties.getMaxActive());
druidDataSource.setMaxWait(druidDataSourceProperties.getMaxWait());
druidDataSourceProperties.setPoolPreparedStatements(druidDataSourceProperties.isPoolPreparedStatements());
return druidDataSource;
}
/**
* * 配置druid管理后台的servlet
* * @return
* */
@Bean
public ServletRegistrationBean statViewSerlvet() {
ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(),"/druid/*");
Map<String,Object> initParameters = new HashMap<>();
initParameters.put("loginUsername","admin");
initParameters.put("loginPassword","123456");
bean.setInitParameters(initParameters);
return bean;
}
@Bean
public FilterRegistrationBean filterRegistrationBean() {
FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
filterRegistrationBean.setUrlPatterns(Arrays.asList("/*"));
Map<String,Object> initParams = new HashMap<>();
initParams.put("exclusions","*.js,*.css,/druid/*");
filterRegistrationBean.setInitParameters(initParams);
return filterRegistrationBean;
}
}
5.创建controller和启动类
package com.yemuxia.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
import java.util.Map;
@RestController
public class TestController {
@Autowired
private JdbcTemplate jdbcTemplate;
@RequestMapping("/testJdbc")
public List<Map<String,Object>> testHello(){
List<Map<String,Object>> employeeList = jdbcTemplate.queryForList("select * from account_info");
return employeeList;
}
}
package com.yemuxia;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class AppMain {
public static void main(String[] args) {
SpringApplication.run(AppMain.class,args);
}
}
6.启动项目
springboot整合 mybaits
案例
1.创建springboot_mybatis项目并引入依赖
<?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">
<parent>
<artifactId>springboottest</artifactId>
<groupId>org.example</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>springboot_mybatis</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
</dependencies>
</project>
2.配置数据源以及mybatis配置
spring:
datasource:
username: root
password: 1234
url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC
driver-class-name: com.mysql.jdbc.Driver
#配置mybatis
mybatis:
#指定配置文件的位置
mapper-locations: classpath:/mybatis/mapper/*.xml
configuration:
#开启驼峰命名
map-underscore-to-camel-case: true
3.创建Controller,service,dao,entity,mapper配置文件
package com.yemuxia.controller;
import com.yemuxia.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/testBoot")
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("getUser/{id}")
public String GetUser(@PathVariable int id){
return userService.Sel(id).toString();
}
}
package com.yemuxia.service;
import com.yemuxia.dao.UserMapper;
import com.yemuxia.entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service
public class UserService {
@Autowired
UserMapper userMapper;
public User Sel(int id){
return userMapper.Sel(id);
}
}
package com.yemuxia.dao;
import com.yemuxia.entity.User;
import org.springframework.stereotype.Repository;
@Repository
public interface UserMapper {
User Sel(int id);
}
package com.yemuxia.entity;
public class User {
private Integer id;
private String userName;
private String passWord;
private String realName;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassWord() {
return passWord;
}
public void setPassWord(String passWord) {
this.passWord = passWord;
}
public String getRealName() {
return realName;
}
public void setRealName(String realName) {
this.realName = realName;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", userName='" + userName + '\'' +
", passWord='" + passWord + '\'' +
", realName='" + realName + '\'' +
'}';
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.yemuxia.dao.UserMapper">
<resultMap id="BaseResultMap" type="com.yemuxia.entity.User">
<result column="id" jdbcType="INTEGER" property="id" />
<result column="userName" jdbcType="VARCHAR" property="userName" />
<result column="passWord" jdbcType="VARCHAR" property="passWord" />
<result column="realName" jdbcType="VARCHAR" property="realName" />
</resultMap>
<select id="Sel" resultType="com.yemuxia.entity.User">
select * from user where id = #{id}
</select>
</mapper>
4.创建启动类
package com.yemuxia;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@MapperScan("com.yemuxia.dao")
@SpringBootApplication
public class AppMain {
public static void main(String[] args) {
SpringApplication.run(AppMain.class,args);
}
}
5.项目结构如图,并启动运行
spring boot整合rabbitmq
生产端案例
1.创建springboot-rabbitmq项目,并引入依赖
<?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">
<parent>
<artifactId>springboottest</artifactId>
<groupId>org.example</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>springboot_rabbitmq</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
</dependencies>
</project>
2.创建配置类
package com.yemuxia.config;
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.DirectExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class RabbitConfig {
//队列 起名:testDirectQueue
@Bean
public Queue testDirectQueue() {
// durable:是否持久化,默认是false,持久化队列:会被存储在磁盘上,当消息代理重启时仍然存在,暂存队列:当前连接有效
// exclusive:默认也是false,只能被当前创建的连接使用,而且当连接关闭后队列即被删除。此参考优先级高于durable
// autoDelete:是否自动删除,当没有生产者或者消费者使用此队列,该队列会自动删除。
// return new Queue("TestDirectQueue",true,true,false);
//一般设置一下队列的持久化就好,其余两个就是默认false
return new Queue("testDirectQueue",true);
}
//Direct交换机 起名:testDirectExchange
@Bean
DirectExchange testDirectExchange() {
// return new DirectExchange("TestDirectExchange",true,true);
return new DirectExchange("testDirectExchange",true,false);
}
//绑定 将队列和交换机绑定, 并设置用于匹配键:TestDirectRouting
@Bean
Binding bindingDirect() {
return BindingBuilder.bind(testDirectQueue()).to(testDirectExchange()).with("testDirectRouting");
}
@Bean
DirectExchange lonelyDirectExchange() {
return new DirectExchange("lonelyDirectExchange");
}
}
3.添加mq配置信息
server:
port: 8082
spring:
application:
name: rabbitmq-provider
rabbitmq:
host: localhost
port: 5672
# virtual-host: test-rabbitmq
username: guest
password: guest
connection-timeout: 5000
template:
mandatory: true
4.创建Controller,启动类
package com.yemuxia.controller;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
@RestController
public class SendMessageController {
@Autowired
RabbitTemplate rabbitTemplate;
@GetMapping("/sendDirectMessage")
public String sendDirectMessage() {
String messageId = String.valueOf(UUID.randomUUID());
String messageData = "test message, hello!";
String createTime = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
Map<String,Object> map=new HashMap<>();
map.put("messageId",messageId);
map.put("messageData",messageData);
map.put("createTime",createTime);
//将消息携带绑定键值:TestDirectRouting 发送到交换机TestDirectExchange
rabbitTemplate.convertAndSend("testDirectExchange", "testDirectRouting", map);
return "ok";
}
}
package com.yemuxia;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class AppMain {
public static void main(String[] args) {
SpringApplication.run(AppMain.class,args);
}
}
5.启动项目
消费端案例
1.创建springboot-rabbitmq-consumer项目,并引入依赖
2.创建监听器,监听队列
package com.yemuxia.listener;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;
import java.util.Map;
@Component
@RabbitListener(queues = "testDirectQueue")//监听的队列名称 TestDirectQueue
public class RabbitReceiver {
@RabbitHandler
public void process(Map testMessage) {
System.out.println("DirectReceiver消费者收到消息 : " + testMessage.toString());
}
}
3.添加mq配置
server:
port: 8022
spring:
#给项目来个名字
application:
name: rabbitmq-consumer
#配置rabbitMq 服务器
rabbitmq:
host: 127.0.0.1
port: 5672
username: guest
password: guest
#虚拟host 可以不设置,使用server默认host
# virtual-host: JCcccHost
4.添加启动类,并运行
package com.yemuxia;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class AppMain {
public static void main(String[] args) {
SpringApplication.run(AppMain.class,args);
}
}
spring boot整合swaggerui
案例
1.在springboot_mybatis项目的基础上进行改造,依赖如下
<?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">
<parent>
<artifactId>springboottest</artifactId>
<groupId>org.example</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>springboot_swaggerui</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.7.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.7.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
</dependencies>
</project>
2.增加swagger配置类
package com.yemuxia.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
@Configuration
public class Swagger2Config {
@Bean
public Docket createRestApi() {
return new Docket(DocumentationType.SWAGGER_2).
apiInfo(apiInfo()).
select().
apis(RequestHandlerSelectors.basePackage("com.yemuxia.controller")) //你需要生成文档所在的包
.paths(PathSelectors.any()).build();
}
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("springboot利用swagger构建api文档")//文档标题
.description("简单优雅的restfun风格,http://blog.csdn.net/saytime") //描述
.termsOfServiceUrl("http://blog.csdn.net/saytime").version("1.0").build();
}
}
3.改造UserController类
package com.yemuxia.controller;
import com.yemuxia.service.UserService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/testBoot")
@Api(value = "用户服务",tags = {
"用户的基本操作"})
public class UserController {
@Autowired
private UserService userService;
@ApiOperation(value ="根据用户ID查询用户信息",notes="根据用户的id来获取用户详细信息")
@ApiImplicitParam(name="id",value = "用户ID",required = true,dataType ="Integer",paramType = "path")
@GetMapping("getUser/{id}")
public String GetUser(@PathVariable int id){
return userService.Sel(id).toString();
}
}
4.在启动类上增加启动swagger注解
package com.yemuxia;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import springfox.documentation.swagger2.annotations.EnableSwagger2;
@SpringBootApplication
@MapperScan("com.yemuxia.dao")
@EnableSwagger2
public class AppMain {
public static void main(String[] args) {
SpringApplication.run(AppMain.class,args);
}
}
5.启动项目
spring boot整合redis
案例
1.创建项目并引入依赖
<?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">
<parent>
<artifactId>springboottest</artifactId>
<groupId>org.example</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>springboot_redis</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
</dependencies>
</project>
2.引入redis配置
spring:
redis:
host: localhost
port: 6379
password:
jedis:
pool:
max-active: 20
max-idle: 10
min-idle: 5
server:
port: 8084
3.创建redis配置类
package com.yemuxia.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.Jackson2JsonRedisSerializer;
@Configuration
public class RedisConfig {
@Bean
public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory factory) {
RedisTemplate<Object, Object> template = new RedisTemplate<>();
//设置自己的序列化工具
template.setDefaultSerializer(new Jackson2JsonRedisSerializer<>(Object.class));
template.setConnectionFactory(factory);
return template;
}
}
4.创建Controller以及启动类
package com.yemuxia.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/test")
public class TestController {
@Autowired
private RedisTemplate redisTemplate;
@GetMapping("redis")
public Object getRedis(){
redisTemplate.opsForValue().set("r","张三");
return redisTemplate.opsForValue().get("r");
}
}
package com.yemuxia;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class AppMain {
public static void main(String[] args) {
SpringApplication.run(AppMain.class,args);
}
}
5.运行项目