spring-boot-通用mapper

數據源依賴

druid官方文檔：https://github.com/alibaba/druid/wiki/常見問題

<dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.19</version>
        </dependency>

mybatis相關依賴及插件配置

<!--mybatis-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.1</version>
        </dependency>
        <!--通用mapper-->
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper-spring-boot-starter</artifactId>
            <version>1.1.5</version>
        </dependency>
        <!--pagehelper 分頁插件-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.3</version>
        </dependency>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>

            <!-- 要打包了這個生成代碼要禁止掉，本地開發開啓-->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.5</version>
                <dependencies>
                    <!--
                    配置這個依賴主要是爲了等下在配置mybatis-generator.xml的時候能夠不用配置 classPathEntry 這樣的一個屬性，
                    避免代碼的耦合度過高-->
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>5.1.44</version>
                    </dependency>
                    <dependency>
                        <groupId>tk.mybatis</groupId>
                        <artifactId>mapper</artifactId>
                        <version>3.4.0</version>
                    </dependency>
                </dependencies>
                <executions>
                    <execution>
                        <id>Generate MyBatis Artifacts</id>
                        <phase>package</phase>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <!--容許移動生成的文件 -->
                    <verbose>true</verbose>
                    <!-- 是否覆蓋 -->
                    <overwrite>true</overwrite>
                    <!-- 自動生成的配置 -->
                    <configurationFile>src/main/resources/mybatis-generator.xml</configurationFile>
                </configuration>
            </plugin>
        </plugins>
    </build>

對應的application.properties配置：

## 數據庫訪問配置
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name = com.mysql.jdbc.Driver
spring.datasource.url = jdbc:mysql://localhost:3306/spring?useUnicode=true&characterEncoding=utf-8
spring.datasource.username = root
spring.datasource.password = root

# 下面爲鏈接池的補充設置，應用到上面全部數據源中
# 初始化大小，最小，最大
spring.datasource.initialSize=5
spring.datasource.minIdle=5
spring.datasource.maxActive=20
# 配置獲取鏈接等待超時的時間
spring.datasource.maxWait=60000
# 配置間隔多久才進行一次檢測，檢測須要關閉的空閒鏈接，單位是毫秒
spring.datasource.timeBetweenEvictionRunsMillis=60000
# 配置一個鏈接在池中最小生存的時間，單位是毫秒
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
# 打開PSCache，而且指定每一個鏈接上PSCache的大小
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
# 配置監控統計攔截的filters，去掉後監控界面sql沒法統計，'wall'用於防火牆
spring.datasource.filters=stat,wall,log4j
# 經過connectProperties屬性來打開mergeSql功能；慢SQL記錄
#spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
# 合併多個DruidDataSource的監控數據
#spring.datasource.useGlobalDataSourceStat=true



#指定 domain bean所在包
mybatis.type-aliases-package=com.dudu.domain
#指定 mapper 映射文件
mybatis.mapperLocations=classpath:mapper/*.xml

#mapper
#mappers 多個接口時逗號隔開
mapper.mappers=com.dudu.util.MyMapper
mapper.not-empty=false
mapper.identity=MYSQL

#pagehelper
pagehelper.helperDialect=mysql
pagehelper.reasonable=true
pagehelper.supportMethodsArguments=true
pagehelper.params=count=countSql

bean 配置

@Configuration
public class DruidConfig {
    private Logger logger = LoggerFactory.getLogger(DruidConfig.class);

    @Value("${spring.datasource.url:#{null}}")
    private String dbUrl;
    @Value("${spring.datasource.username: #{null}}")
    private String username;
    @Value("${spring.datasource.password:#{null}}")
    private String password;
    @Value("${spring.datasource.driverClassName:#{null}}")
    private String driverClassName;
    @Value("${spring.datasource.initialSize:#{null}}")
    private Integer initialSize;
    @Value("${spring.datasource.minIdle:#{null}}")
    private Integer minIdle;
    @Value("${spring.datasource.maxActive:#{null}}")
    private Integer maxActive;
    @Value("${spring.datasource.maxWait:#{null}}")
    private Integer maxWait;
    @Value("${spring.datasource.timeBetweenEvictionRunsMillis:#{null}}")
    private Integer timeBetweenEvictionRunsMillis;
    @Value("${spring.datasource.minEvictableIdleTimeMillis:#{null}}")
    private Integer minEvictableIdleTimeMillis;
    @Value("${spring.datasource.validationQuery:#{null}}")
    private String validationQuery;
    @Value("${spring.datasource.testWhileIdle:#{null}}")
    private Boolean testWhileIdle;
    @Value("${spring.datasource.testOnBorrow:#{null}}")
    private Boolean testOnBorrow;
    @Value("${spring.datasource.testOnReturn:#{null}}")
    private Boolean testOnReturn;
    @Value("${spring.datasource.poolPreparedStatements:#{null}}")
    private Boolean poolPreparedStatements;
    @Value("${spring.datasource.maxPoolPreparedStatementPerConnectionSize:#{null}}")
    private Integer maxPoolPreparedStatementPerConnectionSize;
    @Value("${spring.datasource.filters:#{null}}")
    private String filters;
    @Value("{spring.datasource.connectionProperties:#{null}}")
    private String connectionProperties;

    /**
     * Druid 鏈接池配置
     *
     * @return
     */
    @Bean
    @Primary
    public DataSource dataSource() {
        DruidDataSource datasource = new DruidDataSource();

        datasource.setUrl(this.dbUrl);
        datasource.setUsername(username);
        datasource.setPassword(password);
        datasource.setDriverClassName(driverClassName);
        //configuration
        if (initialSize != null) {
            datasource.setInitialSize(initialSize);
        }
        if (minIdle != null) {
            datasource.setMinIdle(minIdle);
        }
        if (maxActive != null) {
            datasource.setMaxActive(maxActive);
        }
        if (maxWait != null) {
            datasource.setMaxWait(maxWait);
        }
        if (timeBetweenEvictionRunsMillis != null) {
            datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        }
        if (minEvictableIdleTimeMillis != null) {
            datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        }
        if (validationQuery != null) {
            datasource.setValidationQuery(validationQuery);
        }
        if (testWhileIdle != null) {
            datasource.setTestWhileIdle(testWhileIdle);
        }
        if (testOnBorrow != null) {
            datasource.setTestOnBorrow(testOnBorrow);
        }
        if (testOnReturn != null) {
            datasource.setTestOnReturn(testOnReturn);
        }
        if (poolPreparedStatements != null) {
            datasource.setPoolPreparedStatements(poolPreparedStatements);
        }
        if (maxPoolPreparedStatementPerConnectionSize != null) {
            datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
        }

        if (connectionProperties != null) {
            datasource.setConnectionProperties(connectionProperties);
        }

        List<Filter> filters = new ArrayList<>();
        filters.add(statFilter());
        filters.add(wallFilter());
        datasource.setProxyFilters(filters);

        return datasource;
    }

    /**
     * 註冊 servlet
     *
     * @return
     */
    @Bean
    public ServletRegistrationBean druidServlet() {
        ServletRegistrationBean servletRegistrationBean =
                new ServletRegistrationBean(new StatViewServlet(), "/druid/*");

        //控制檯管理用戶，加入下面2行 進入druid後臺就須要登陸
        servletRegistrationBean.addInitParameter("loginUsername", "admin");
        servletRegistrationBean.addInitParameter("loginPassword", "admin");
        return servletRegistrationBean;
    }

    /**
     * 註冊 filter
     *
     * @return
     */
    @Bean
    public FilterRegistrationBean filterRegistrationBean() {
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
        filterRegistrationBean.setFilter(new WebStatFilter());
        filterRegistrationBean.addUrlPatterns("/*");
        filterRegistrationBean.addInitParameter("exclusions",
                "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
        filterRegistrationBean.addInitParameter("profileEnable", "true");
        return filterRegistrationBean;
    }

    @Bean
    public StatFilter statFilter() {
        StatFilter statFilter = new StatFilter();
        //slowSqlMillis用來配置SQL慢的標準，執行時間超過slowSqlMillis的就是慢。
        statFilter.setLogSlowSql(true);
        //SQL合併配置
        statFilter.setMergeSql(true);
        //slowSqlMillis的缺省值爲3000，也就是3秒。
        statFilter.setSlowSqlMillis(1000);
        return statFilter;
    }

    @Bean
    public WallFilter wallFilter() {
        WallFilter wallFilter = new WallFilter();
        //容許執行多條SQL
        WallConfig config = new WallConfig();
        config.setMultiStatementAllow(true);
        wallFilter.setConfig(config);
        return wallFilter;
    }
}

通用Mapper配置 主要配置

通用Mapper插件網址：https://github.com/abel533/Mapper

能夠放在 utils包中

public interface MyMapper<T> extends Mapper<T>, MySqlMapper<T> {
    //FIXME 特別注意，該接口不能被掃描到，不然會出錯
}

這裏實現一個本身的接口,繼承通用的mapper，關鍵點就是這個接口不能被掃描到，不能跟dao這個存放mapper文件放在一塊兒。
最後在啓動類中經過MapperScan註解指定掃描的mapper路徑：

@SpringBootApplication
@EnableTransactionManagement  // 啓註解事務管理，等同於xml配置方式的 <tx:annotation-driven />
@MapperScan(basePackages = "com.dudu.dao", markerInterface = MyMapper.class)
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

MyBatis Generator配置

mybatis-generator.xml文件,該配置文件用來自動生成表對應的Model,Mapper以及xml,該文件位於src/main/resources下面

Mybatis Geneator 詳解: http://blog.csdn.net/isea533/article/details/42102297

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>

    <!--加載配置文件，爲下面讀取數據庫信息準備-->
    <properties resource="application.properties"/>

    <context id="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat">

        <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
            <!-- 自定義通用 mapper 接口-->
            <property name="mappers" value="com.dudu.util.MyMapper"/>
            <!-- caseSensitive 默認false，當數據庫表名區分大小寫時，能夠將該屬性設置爲true-->
            <property name="caseSensitive" value="true"/>
        </plugin>

        <!-- 阻止生成自動註釋 -->
        <commentGenerator>
            <property name="javaFileEncoding" value="UTF-8"/>
            <property name="suppressDate" value="true"/>
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>

        <!--數據庫連接地址帳號密碼-->
        <jdbcConnection driverClass="${spring.datasource.driver-class-name}"
                        connectionURL="${spring.datasource.url}"
                        userId="${spring.datasource.username}"
                        password="${spring.datasource.password}">
        </jdbcConnection>

        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>

        <!--生成Model類存放位置-->
        <javaModelGenerator targetPackage="com.dudu.domain" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>

        <!--生成映射文件存放位置-->
        <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>

        <!--生成Dao類存放位置-->
        <!-- 客戶端代碼，生成易於使用的針對Model對象和XML配置文件 的代碼
                type="ANNOTATEDMAPPER",生成Java Model 和基於註解的Mapper對象
                type="XMLMAPPER",生成SQLMap XML文件和獨立的Mapper接口
        -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.dudu.dao" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>

        <!--生成對應表及類名

            去掉Mybatis Generator生成的一堆 example
        -->
        <table tableName="LEARN_RESOURCE" domainObjectName="LearnResource" enableCountByExample="false"
               enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
               selectByExampleQueryId="false">
            <generatedKey column="id" sqlStatement="Mysql" identity="true"/>
        </table>
    </context>
</generatorConfiguration>

其中tk.mybatis.mapper.generator.MapperPlugin很重要，用來指定通用Mapper對應的文件，這樣咱們生成的mapper都會繼承這個通用Mapper

• 能夠直接經過命令：mvn mybatis-generator:generate
• 通用maven 插件形式
  

生成代碼以下：

domain

@Table(name = "learn_resource")
public class LearnResource {
    /**
     * ID
     */
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    /**
     * 做者
     */
    private String author;

    /**
     * 描述
     */
    private String title;

    /**
     * 地址連接
     */
    private String url;

    /**
     * 獲取ID
     *
     * @return id - ID
     */
    public Long getId() {
        return id;
    }

    /**
     * 設置ID
     *
     * @param id ID
     */
    public void setId(Long id) {
        this.id = id;
    }

    /**
     * 獲取做者
     *
     * @return author - 做者
     */
    public String getAuthor() {
        return author;
    }

    /**
     * 設置做者
     *
     * @param author 做者
     */
    public void setAuthor(String author) {
        this.author = author == null ? null : author.trim();
    }

    /**
     * 獲取描述
     *
     * @return title - 描述
     */
    public String getTitle() {
        return title;
    }

    /**
     * 設置描述
     *
     * @param title 描述
     */
    public void setTitle(String title) {
        this.title = title == null ? null : title.trim();
    }

    /**
     * 獲取地址連接
     *
     * @return url - 地址連接
     */
    public String getUrl() {
        return url;
    }

    /**
     * 設置地址連接
     *
     * @param url 地址連接
     */
    public void setUrl(String url) {
        this.url = url == null ? null : url.trim();
    }
}

dao mapper

public interface LearnResourceMapper extends MyMapper<LearnResource> {

    /**
     * 自定義新增接口
     *
     * @param map
     * @return
     */
    List<LearnResource> queryLearnResouceList(Map<String, Object> map);
}

mapper xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.dudu.dao.LearnResourceMapper">


    <resultMap id="BaseResultMap" type="com.dudu.domain.LearnResource">
        <!--
          WARNING - @mbg.generated
        -->
        <id column="id" jdbcType="BIGINT" property="id"/>
        <result column="author" jdbcType="VARCHAR" property="author"/>
        <result column="title" jdbcType="VARCHAR" property="title"/>
        <result column="url" jdbcType="VARCHAR" property="url"/>
    </resultMap>


    <!--自定義新增接口-->
    <select id="queryLearnResouceList" resultType="com.dudu.domain.LearnResource">
        SELECT * from learn_resource where 1=1
        <if test="author != null and author!= ''">
            and author like CONCAT('%',#{author},'%')
        </if>
        <if test="title != null and title!= ''">
            and title like CONCAT('%',#{title},'%')
        </if>
        order by id desc
    </select>
</mapper>

定義service 層

通用 service 定義：
具體能夠查看這裏瞭解:https://gitee.com/free/Mapper2/blob/master/wiki/mapper/4.Spring4.md

/**
 * 通用接口
 */
@Service
public interface IService<T> {

    T selectByKey(Object key);

    int save(T entity);

    int delete(Object key);

    int updateAll(T entity);

    int updateNotNull(T entity);

    List<T> selectByExample(Object example);

    //TODO 其餘...
}

/**
 * 通用Service 實現
 *
 * @param <T>
 */
public abstract class BaseService<T> implements IService<T> {

    @Autowired
    protected Mapper<T> mapper;

    public Mapper<T> getMapper() {
        return mapper;
    }

    @Override
    public T selectByKey(Object key) {
        //說明：根據主鍵字段進行查詢，方法參數必須包含完整的主鍵屬性，查詢條件使用等號
        return mapper.selectByPrimaryKey(key);
    }

    @Override
    public int save(T entity) {
        //說明：保存一個實體，null的屬性也會保存，不會使用數據庫默認值
        return mapper.insert(entity);
    }

    @Override
    public int delete(Object key) {
        //說明：根據主鍵字段進行刪除，方法參數必須包含完整的主鍵屬性
        return mapper.deleteByPrimaryKey(key);
    }

    @Override
    public int updateAll(T entity) {
        //說明：根據主鍵更新實體所有字段，null值會被更新
        return mapper.updateByPrimaryKey(entity);
    }

    @Override
    public int updateNotNull(T entity) {
        //根據主鍵更新屬性不爲null的值
        return mapper.updateByPrimaryKeySelective(entity);
    }

    @Override
    public List<T> selectByExample(Object example) {
        //說明：根據Example條件進行查詢
        //重點：這個查詢支持經過Example類指定查詢列，經過 selectProperties方法指定查詢列
        return mapper.selectByExample(example);
    }
}


// 具體業務的 service 接口
public interface LearnService extends IService<LearnResource> {

    List<LearnResource> queryLearnResouceList(Page<LeanQueryLeanListReq> page);

    void deleteBatch(Long[] ids);
}

// 具體業務的 service 實現接口
@Service
public class LearnServiceImpl extends BaseService<LearnResource> implements LearnService {

    @Autowired
    private LearnResourceMapper learnResourceMapper;

    @Override
    public void deleteBatch(Long[] ids) {
        Arrays.stream(ids).forEach(id -> learnResourceMapper.deleteByPrimaryKey(id));
    }

    @Override
    public List<LearnResource> queryLearnResouceList(Page<LeanQueryLeanListReq> page) {
        PageHelper.startPage(page.getPage(), page.getRows());
        return learnResourceMapper.queryLearnResouceList(page.getCondition());
    }
}

controller 層

@Controller
@RequestMapping("/learn")
public class LearnController extends AbstractController {
    private Logger logger = LoggerFactory.getLogger(this.getClass());
    
    @Autowired
    private LearnService learnService;


    @RequestMapping("")
    public String learn(Model model) {
        model.addAttribute("ctx", getContextPath() + "/");
        return "learn-resource";
    }

    /**
     * 查詢教程列表
     *
     * @param page
     * @return
     */
    @RequestMapping(value = "/queryLeanList", method = RequestMethod.POST)
    @ResponseBody
    public AjaxObject queryLearnList(Page<LeanQueryLeanListReq> page) {
        List<LearnResource> learnList = learnService.queryLearnResouceList(page);
        PageInfo<LearnResource> pageInfo = new PageInfo<LearnResource>(learnList);
        return AjaxObject.ok().put("page", pageInfo);
    }

    /**
     * 新添教程
     *
     * @param learn
     */
    @RequestMapping(value = "/add", method = RequestMethod.POST)
    @ResponseBody
    public AjaxObject addLearn(@RequestBody LearnResource learn) {
        learnService.save(learn);
        return AjaxObject.ok();
    }

    /**
     * 修改教程
     *
     * @param learn
     */
    @RequestMapping(value = "/update", method = RequestMethod.POST)
    @ResponseBody
    public AjaxObject updateLearn(@RequestBody LearnResource learn) {
        learnService.updateNotNull(learn);
        return AjaxObject.ok();
    }

    /**
     * 刪除教程
     *
     * @param ids
     */
    @RequestMapping(value = "/delete", method = RequestMethod.POST)
    @ResponseBody
    public AjaxObject deleteLearn(@RequestBody Long[] ids) {
        learnService.deleteBatch(ids);
        return AjaxObject.ok();
    }
}


**
 * 前臺傳的分頁參數 分頁工具類
 *
 * @param <T>
 */
public class Page<T> implements Serializable {
    private int page; //當前頁
    private int rows; //每頁多少條
    private static final long serialVersionUID = 1L;
    private List<T> records = Collections.emptyList();
    private Map<String, Object> condition;

    public int getPage() {
        return page;
    }

    public void setPage(int page) {
        this.page = page;
    }

    public int getRows() {
        return rows;
    }

    public void setRows(int rows) {
        this.rows = rows;
    }

    public static long getSerialVersionUID() {
        return serialVersionUID;
    }

    public List<T> getRecords() {
        return records;
    }

    public void setRecords(List<T> records) {
        this.records = records;
    }

    public Map<String, Object> getCondition() {
        return condition;
    }

    public void setCondition(Map<String, Object> condition) {
        this.condition = condition;
    }
}

service 沒有被事物管理

• 在 業務 service 類上加 @Transactional 或 方法上加 @Transactional 便可，數據庫鏈接將被事物管理
• 事務日誌以下：

10:30:10.818 logback [http-nio-8090-exec-3] DEBUG o.s.w.s.m.m.a.RequestResponseBodyMethodProcessor - Read [class [Ljava.lang.Long;] as "application/json;charset=UTF-8" with [com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter@3b22e32f]
10:30:10.822 logback [http-nio-8090-exec-3] DEBUG o.s.t.a.AnnotationTransactionAttributeSource - Adding transactional method 'com.dudu.service.impl.LearnServiceImpl.deleteBatch' with attribute: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
10:30:10.822 logback [http-nio-8090-exec-3] DEBUG o.s.j.d.DataSourceTransactionManager - Creating new transaction with name [com.dudu.service.impl.LearnServiceImpl.deleteBatch]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
10:30:10.822 logback [http-nio-8090-exec-3] DEBUG o.s.j.d.DataSourceTransactionManager - Acquired Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@5f82a880] for JDBC transaction
10:30:10.822 logback [http-nio-8090-exec-3] DEBUG o.s.j.d.DataSourceTransactionManager - Switching JDBC Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@5f82a880] to manual commit
10:30:10.830 logback [http-nio-8090-exec-3] DEBUG org.mybatis.spring.SqlSessionUtils - **Creating a new SqlSession**
10:30:10.831 logback [http-nio-8090-exec-3] DEBUG org.mybatis.spring.SqlSessionUtils - Registering transaction synchronization for SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@5454410e]
10:30:10.833 logback [http-nio-8090-exec-3]**DEBUG o.m.s.t.SpringManagedTransaction - JDBC Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@5f82a880] will be managed by Spring**
10:30:10.833 logback [http-nio-8090-exec-3] DEBUG c.d.d.L.deleteByPrimaryKey - ==>  Preparing: DELETE FROM learn_resource WHERE id = ? 
10:30:10.848 logback [http-nio-8090-exec-3] DEBUG c.d.d.L.deleteByPrimaryKey - ==> Parameters: 1031(Long)
10:30:10.850 logback [http-nio-8090-exec-3] DEBUG c.d.d.L.deleteByPrimaryKey - <==    Updates: 1
10:30:10.850 logback [http-nio-8090-exec-3] DEBUG c.a.druid.pool.PreparedStatementPool - {conn-10005, pstmt-20002} enter cache
10:30:10.850 logback [http-nio-8090-exec-3] DEBUG org.mybatis.spring.SqlSessionUtils - Releasing transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@5454410e]
10:30:10.850 logback [http-nio-8090-exec-3] DEBUG org.mybatis.spring.SqlSessionUtils - Transaction synchronization committing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@5454410e]
10:30:10.850 logback [http-nio-8090-exec-3] DEBUG org.mybatis.spring.SqlSessionUtils - Transaction synchronization deregistering SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@5454410e]
10:30:10.850 logback [http-nio-8090-exec-3] DEBUG org.mybatis.spring.SqlSessionUtils - Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@5454410e]
10:30:10.850 logback [http-nio-8090-exec-3] DEBUG o.s.j.d.DataSourceTransactionManager - Initiating transaction commit
10:30:10.850 logback [http-nio-8090-exec-3] **DEBUG o.s.j.d.DataSourceTransactionManager - Committing JDBC transaction on Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@5f82a880]**
10:30:10.852 logback [http-nio-8090-exec-3] DEBUG o.s.j.d.DataSourceTransactionManager - Releasing JDBC Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@5f82a880] after transaction
10:30:10.852 logback [http-nio-8090-exec-3] DEBUG o.s.jdbc.datasource.DataSourceUtils - Returning JDBC Connection to DataSource