<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>4.0.0modelVersion>
<groupId>cn.itcast.usergroupId>
<artifactId>itcast-userartifactId>
<version>1.0-SNAPSHOTversion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.0.6.RELEASEversion>
parent>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
dependencies>
project>
导入springboot和wen启动器
@SpringBootApplication
public class UserApplication {
public static void main(String[] args) {
SpringApplication.run(UserApplication.class);
}
}
@RestController
@RequestMapping("user")
public class UserController {
@GetMapping("hello")
public String test(){
return "hello ssm";
}
}
springboot改配置都是在application.properties中,因为springboot默认就去该配置文件中找配置。
server.port=80
ResourceProperties的类,里面就定义了静态资源的默认查找路径:
classpath: 指当前的目录,由于springboot读取的配置文件在resources目录,所以resources为当前路径。
resources/static/ 下放静态资源
@Component
public class MyInterceptor implements HandlerInterceptor {
//实现相关方法
}
@Configuration
public class MvcConfiguration implements WebMvcConfigurer {
@Autowired
private HandlerInterceptor myInterceptor;
/**
* 重写接口中的addInterceptors方法,添加自定义拦截器
* @param registry*/
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(myInterceptor).addPathPatterns("/**");
}
}
实现接口和方法。在方法中配置相关的拦截路径
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-jdbcartifactId>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
dependency>
# 连接四大参数
spring.datasource.url=jdbc:mysql://localhost:3306/heima
spring.datasource.username=root
spring.datasource.password=root
# 可省略,SpringBoot自动推断
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.hikari.idle-timeout=60000
spring.datasource.hikari.maximum-pool-size=30
spring.datasource.hikari.minimum-idle=10
<dependency>
<groupId>org.mybatis.spring.bootgroupId>
<artifactId>mybatis-spring-boot-starterartifactId>
<version>1.3.2version>
dependency>
# mybatis 别名扫描
mybatis.type-aliases-package=cn.itcast.pojo
# mapper.xml文件位置,如果没有映射文件,请注释掉
mybatis.mapper-locations=classpath:mappers/*.xm
没有配置mapper接口扫描包,给每一个Mapper接口添加 @Mapper 注解,才能被识别
@Mapper
public interface UserMapper {
}
<!-- 通用mapper -->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>2.0.2</version>
</dependency>
@Mapper
public interface UserMapper extends tk.mybatis.mapper.common.Mapper<User>{
}
@Service
public class UserService {
@Autowired
private UserMapper userMapper;
public User queryById(Long id){
return this.userMapper.selectByPrimaryKey(id);
}
@Transactional
public void deleteById(Long id){
this.userMapper.deleteByPrimaryKey(id);
}
}