SpringBoot入门学习（一）-CFANZ编程社区

1、pom.xml

<!--springBoot工程-->
    <groupId>com.qinluyu</groupId>
    <artifactId>SpringBoot01</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!-- jdk版本-->
    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    </properties>
    <!--添加父工程坐标-->
    <parent>
        <artifactId>spring-boot-starter-parent</artifactId>
        <groupId>org.springframework.boot</groupId>
        <version>2.0.1.RELEASE</version>
    </parent>
    <!--添加web启动器-->
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--druid数据库-->
        <!--<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.9</version>
        </dependency>-->
       <!-- springboot整合数据库-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
       <!-- 测试test-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
       <!-- mysql-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.45</version>
        </dependency>
        <!--配置文件启动器-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <!--mybatis 不是spring的官方-->
        <!--<dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>-->
        <!--mapper通用-->
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper-spring-boot-starter</artifactId>
            <version>2.0.0</version>
        </dependency>
        <!--thymeleaf-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
    </dependencies>

2、拦截器

/**
     * 通过@Bean注解，将我们定义的拦截器注册到Spring容器
     * @return
     */
    @Bean
    public LoginInterceptor loginInterceptor(){
        return new LoginInterceptor();
    }

    /**
     * 重写接口中的addInterceptors方法，添加自定义拦截器
     * @param registry
     */
    public void addInterceptors(InterceptorRegistry registry){
        // 通过registry来注册拦截器，通过addPathPatterns来添加拦截路径
        /**
         *addPathPatterns:
         * ?’ 匹配任何单字符
         * ‘*’ 匹配0或者任意数量的字符
         * ‘/**’ 匹配0或者更多的目录
         */
        registry.addInterceptor(this.loginInterceptor()).addPathPatterns("/**");
    }

3、@RestController

5、SpringBoot启动类

@SpringBootApplication
/**
 * @MapperScan("com.qinluyu.daomain")  代替@Mapper
 *@MapperScan ("dao所在的包")，自动搜索包中的接口，产生dao的代理对象
 */
@MapperScan("com.qinluyu.daomain")
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class,args);
    }
}

6、application.properties

#端口号
server.port=9090
#日志级别
logging.level.com.qinluyu=debug
#链接地址
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/tb_user?characterEncoding=utf8?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=GMT
#用户名
spring.datasource.username=root
#密码
spring.datasource.password=123
#驱动
spring.datasource.driverClassName=com.mysql.jdbc.Driver
#最大链接时间
spring.datasource.hikari.idle-timeout=60000
#最大连接池个数
spring.datasource.hikari.maximum-pool-size=30
#最小连接池个数
spring.datasource.hikari.minimum-idle=10
#mybatis 别名扫描
mybatis.type-aliases-package=com.qinluyu.daomain
#mapper配置文件
mybatis.mapper-locations=classpath:mappers/*.xml
#关闭thymeleaf缓存
spring.thymeleaf.cache=false

7、测试

@RunWith(SpringRunner.class)
@SpringBootTest