Spring_Boot

目录：

POM.xml

    4.0.0

    com.ali
    springBoot
    1.0-SNAPSHOT

    
        org.springframework.boot
        spring-boot-starter-parent
        2.0.7.RELEASE
    


    
        1.8
    

    

        
            org.springframework.boot
            spring-boot-starter-web
        

        

        
            mysql
            mysql-connector-java
        

        
            org.springframework.boot
            spring-boot-starter-jdbc
        

        
        
            org.mybatis.spring.boot
            mybatis-spring-boot-starter
            1.3.2
        

        
            org.springframework.boot
            spring-boot-starter-thymeleaf
        

    

Application启动类：

@SpringBootApplication
@MapperScan(basePackages = "com.ali.mapper")
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class,args);
    }
}

pojo：

public class TbDept implements Serializable {

    private Integer id;
    private String name;
    private Integer age;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

mapper:

@Repository
public interface DeptMapper {

    List findList();
}

service:

@Service
public class DeptService {


    @Autowired
    private DeptMapper deptMapper;

    public List  findList(){

        return deptMapper.findList();
    }

}

controller:

@Controller
public class DemoController {


    @Autowired
    private DeptService deptService;


    @RequestMapping("findList")
    @ResponseBody
    public List findList(){


        return deptService.findList();
    }

    @RequestMapping("findAll")
    public String findAll(ModelMap modelMap){

        List list = deptService.findList();

        modelMap.addAttribute("list",list);

        modelMap.addAttribute("msg","hello");

        return "haha";
    }

}

拦截器：

public class LoginInterceptor implements HandlerInterceptor {

    private Logger logger = LoggerFactory.getLogger(LoginInterceptor.class);


    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
        logger.debug("preHandle method is now running!");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
        logger.debug("postHandle method is now running!");
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
        logger.debug("afterCompletion method is now running!");
    }
}

config：

@Configuration
public class MvcConfig implements WebMvcConfigurer {

    @Bean
    public LoginInterceptor loginInterceptor(){

        return new LoginInterceptor();

    }

    //添加拦截器
    public void addInterceptors(InterceptorRegistry registry) {
        // 通过registry来注册拦截器，通过addPathPatterns来添加拦截路径
        registry.addInterceptor(this.loginInterceptor()).addPathPatterns("/**");
    }

}

resource中的资源：

mappers：

DeptMapper.xml:

    

        SELECT
          *
          FROM  dept

    

 

templates:中主要放置themleaf的html页面：

//其中要有xmlns:th="http://www.thymeleaf.org"


    
    




我是h1



    


        
1
        
admin
        
88


    

application.properties：为springBoot默认使用的配置文件

#修改端口
server.port=9001

# 连接四大参数
spring.datasource.url=jdbc:mysql://localhost:3306/miu
spring.datasource.username=root
spring.datasource.password=root
# 可省略，SpringBoot自动推断
spring.datasource.driverClassName=com.mysql.jdbc.Driver

#设置日志级别
logging.level.com.ali=debug

# mybatis 别名扫描
mybatis.type-aliases-package=com.ali.pojo
# mapper.xml文件位置,如果没有映射文件，请注释掉
mybatis.mapper-locations=classpath:mappers/*.xml

#禁用thyemelaaf 模板缓存
spring.thymeleaf.cache=false

static中存放静态图片