springboot+mybatis+mysql+druid監聽

前言：

springboot 可以整合mybatis進行對數據庫的持久化操作，連接mysql數據庫（通過註解方式），同時配置druid監聽，通過druid面板，可以知道sql語句的具體操作和所用時間。

同時，在整理這個文章時，是通過借鑑了很多大佬的分享。

具體配置

pom.xml 所需的依賴

需要添加連接mysql數據庫的依賴；數據庫連接池druid的依賴；springboot整合mybatis的依賴。

      <!--連接mysql數據庫-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        
        <!--鏈接池配置 阿里巴巴連接驅動 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.13</version>
        </dependency>

        <!--引入mybatis-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.0</version>
        </dependency>

application.properties配置

需要配置連接mysql數據庫的操作，及配置數據庫連接池

#連接mysql數據庫
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8 &serverTimezone=Asia/Shanghai
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

#不使用默認的配置源
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.initialSize=2
spring.datasource.minIdle=1
spring.datasource.maxActive=20
spring.datasource.maxWait=60000

#打印sql語句
mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

配置driud監聽sql語句

import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
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;


@Configuration
public class DruidConfiguration {
    @Bean
    public ServletRegistrationBean druidServlet() {
        ServletRegistrationBean servletRegistrationBean=new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        // IP白名單 (沒有配置或者爲空，則允許所有訪問)
        servletRegistrationBean.addInitParameter("allow", "");
        // IP黑名單(共同存在時，deny優先於allow)
        servletRegistrationBean.addInitParameter("deny", "192.168.1.100");
        //控制檯管理用戶
        servletRegistrationBean.addInitParameter("loginUsername", "admin");

        servletRegistrationBean.addInitParameter("loginPassword", "admin");
        //是否能夠重置數據 禁用HTML頁面上的“Reset All”功能
        servletRegistrationBean.addInitParameter("resetEnable", "false");
        return servletRegistrationBean;
    }
    /**
     * druid過濾器.
     * @return
     */
    @Bean
    public FilterRegistrationBean filterRegistrationBean() {
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
        //添加過濾規則.
        filterRegistrationBean.addUrlPatterns("/*");
        //添加不需要忽略的格式信息.
        filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
        return filterRegistrationBean;
    }
}

項目其餘代碼及結構

項目簡單結構

實體類

可以通過lombok依賴來減少代碼的工作量

<!--作用於實體類，自動封裝get，set方法-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.10</version>
        </dependency>

通過@Data註解，自動封裝get，set，toString方法等，非常方便

import lombok.Data;

@Data
public class Tuser {

    private  Integer id;
    private String name;
    private  String phone;
    private  String uuid;
    private  String pwd;
}

數據庫設計

CREATE TABLE `t_user` (
  `id` int(10) NOT NULL AUTO_INCREMENT,
  `phone` varchar(11) DEFAULT NULL COMMENT '手機號',
  `name` varchar(50) DEFAULT NULL COMMENT '姓名',
  `uuid` varchar(64) DEFAULT NULL COMMENT '鹽',
  `pwd` varchar(64) DEFAULT NULL COMMENT '密碼',
  PRIMARY KEY (`id`),
  UNIQUE KEY `t_user_uq_phone` (`phone`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=18 DEFAULT CHARSET=utf8mb4;


INSERT INTO `t_user` VALUES ('2', '11111111111', '鍾花花', 'ff12a6e6-3e7f-4ba9-a55b-ef0d0532ba2d', '827bdbb0227bbdad3cb159c01662e311');
INSERT INTO `t_user` VALUES ('3', '13236170925', '敏敏特穆爾', '0ce101df-b9e2-47ad-b279-122107c4ff0a', '6738b1739ff9d78855a241ebb0665a3e');
INSERT INTO `t_user` VALUES ('4', '13479769366', '張無忌', 'bab88b92-3b99-4a8d-a778-f3219af24718', '25b22e9c8a167b55ca29d9ae5b47afb2');
INSERT INTO `t_user` VALUES ('16', '12345678915', '鍾花花', '1bb089eb-5ccc-4b29-8237-817d640a1422', '6ea0b946626ebd7303d990a6482908e4');
INSERT INTO `t_user` VALUES ('17', '12345678912', '鍾花花', 'da7557ea-b1ce-4645-a8ea-5b930ff3f6ec', '5935a84675e16546e43634d977ecadb9');

與數據庫交互的部分（mybatis）

@Repository
public interface TuserDao {
    //查看所有Tuser信息
    @Select("select * from t_user")
    List<Tuser> getListOfTuser();

    //根據id查找Tuser對象
    @Select("select * from t_user where id=#{id}")
    Tuser getTuserById(Integer id);

    //修改
    @Update("update t_user set name=#{name},phone=#{phone},uuid=#{uuid},pwd=#{pwd} where id=#{id}")
    int UpdateByTuser(Tuser tuser);
}

service部分就粘貼出來了 ，直接上控制層部分

@RestController
@RequestMapping("/tuser/")
public class TuserController {

    @Autowired
    private TuserService tuserServiceimpl;

    @GetMapping("getListOfTuser")
    public Object getListOfTuser(){
        List<Tuser> list=tuserServiceimpl.getListOfTuser();
        return list;
    }

    @GetMapping("getTuserById")
    public Object getTuserById(Integer id){
        Tuser tuser=tuserServiceimpl.getTuserById(id);
        return tuser;
    }

    @GetMapping("UpdateByTuser")
    public Object UpdateByTuser(){
        Tuser tuser=new Tuser();
        tuser.setId(2);
        tuser.setName("鍾花花");
        tuser.setPhone("11111111111");
        tuser.setPwd("123456");
        tuser=getMd5(tuser);
        int num=tuserServiceimpl.UpdateByTuser(tuser);
        return "成功修改的個數"+num;
    }
    
    public Tuser getMd5(Tuser tuser){
        String pwd=tuser.getPwd();
        //生成uuid
        String uuid= String.valueOf(UUID.randomUUID());
        tuser.setUuid(uuid);
        //springboot自帶的md5加密工具
        String md5Password = DigestUtils.md5DigestAsHex((uuid+pwd).getBytes());
        tuser.setPwd(md5Password);
        return tuser;
    }
}

結果顯示

在瀏覽器上輸入：http://localhost:8080/druid/login.html 就可以看到druid面板的登錄界面

輸入賬號密碼就可以登錄：密碼：admin 賬號：admin

可在DruidConfiguration .java中修改

   servletRegistrationBean.addInitParameter("loginUsername", "admin");

    servletRegistrationBean.addInitParameter("loginPassword", "admin");

登錄之後可看到