springBoot 集成 Mybatis

springBoot 集成 Mybatis

1. 導入依賴

   可以用IDEA創建的時候導入，也可以後期導入

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-data-jdbc</artifactId>
</dependency>
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
   <groupId>org.mybatis.spring.boot</groupId>
   <artifactId>mybatis-spring-boot-starter</artifactId>
   <version>2.1.1</version>
</dependency>

<dependency>
   <groupId>mysql</groupId>
   <artifactId>mysql-connector-java</artifactId>
   <scope>runtime</scope>
</dependency>
<dependency>
   <groupId>org.projectlombok</groupId>
   <artifactId>lombok</artifactId>
   <optional>true</optional>
</dependency>
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-test</artifactId>
   <scope>test</scope>
   <exclusions>
      <exclusion>
         <groupId>org.junit.vintage</groupId>
         <artifactId>junit-vintage-engine</artifactId>
      </exclusion>
   </exclusions>
</dependency>

<dependency>
   <groupId>com.alibaba</groupId>
   <artifactId>druid</artifactId>
   <version>1.1.21</version>
</dependency>
      <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <scope>test</scope>
      </dependency>

<!-- log start -->
<dependency>
   <groupId>log4j</groupId>
   <artifactId>log4j</artifactId>
   <version>1.2.12</version>
</dependency>
<dependency>
   <groupId>org.slf4j</groupId>
   <artifactId>slf4j-api</artifactId>
</dependency>
<dependency>
   <groupId>org.slf4j</groupId>
   <artifactId>slf4j-log4j12</artifactId>
</dependency>

2. 配置連接池

   @ConfigurationProperties(prefix = "spring.datasource")
   @Bean
   public DruidDataSource druidDataSource(){
       return new DruidDataSource();
   }
   

3. 用到的配置文件

   server:
     port: 80
   
   
   spring:
     datasource:
       #數據源基本配置
       type: com.alibaba.druid.pool.DruidDataSource
       url: jdbc:mysql://localhost:3306/syxy?useSSL=true&useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
       username: root
       password: root
       #數據源其他配置
       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
       #配置監控統計攔截的filters，去掉後監控界面sql無法統計，'wall'用於防火牆
       filters: stat,wall
       maxPoolPreparedStatementPerConnectionSize: 20
       useGlobalDataSourceStat: true
       connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
   
   #mybatis的配置
   mybatis:
     typeAliasesPackage: chang.pojo
   # 這個包的日爲debug，可以打印SQL語句
   logging:
     level:
       chang:
         mapper: debug
   

4. druid 的監控配置

   /**
    * 配置監控服務器
    * @return 返回監控註冊的servlet對象
    * @author SimpleWu
    */
   @Bean
   public ServletRegistrationBean statViewServlet() {
       ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
       // 添加IP白名單
       servletRegistrationBean.addInitParameter("allow", "127.0.0.1");
       // 添加IP黑名單，當白名單和黑名單重複時，黑名單優先級更高
       servletRegistrationBean.addInitParameter("deny", "127.0.0.2");
       // 添加控制檯管理用戶
       servletRegistrationBean.addInitParameter("loginUsername", "root");
       servletRegistrationBean.addInitParameter("loginPassword", "123456");
       // 是否能夠重置數據
       servletRegistrationBean.addInitParameter("resetEnable", "false");
       return servletRegistrationBean;
   }
   
   /**
    * 配置服務過濾器
    *
    * @return 返回過濾器配置對象
    */
   @Bean
   public FilterRegistrationBean statFilter() {
       FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
       // 添加過濾規則
       filterRegistrationBean.addUrlPatterns("/*");
       // 忽略過濾格式
       filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*,");
       return filterRegistrationBean;
   }
   

參考博客：

Druid配置https://www.cnblogs.com/SimpleWu/p/10049825.html

JDBCTemplate的使用 https://blog.csdn.net/qq_23329167/article/details/81841996