之前開發的時候一直使用mybatis程式碼生成器生成單表crud，一旦資料庫表字段出現修改就要重新生成一次xml或者手動修復，容易出現錯誤以及麻煩。新專案就換了個方式程式碼生成器只生成xml以及整合對映，crud改用通用mapper並使用pagehelper做分頁。

yml

mybatis:
    mapper-locations: classpath:com/api/web/**/mapper/*.xml
    configuration:
        callSettersOnNulls: true
        defaultStatementTimeout: 180
mapper:
    mappers: 
 
com.api.util.mapper.MyMapper
    not-empty: false
    identity: ORACLE

pagehelper:
    helperDialect: oracle
    reasonable: true
    supportMethodsArguments: true
    params: count=countSql

pom

<dependency>
  <groupId>com.github.pagehelper</groupId>
  <artifactId>pagehelper-spring-boot-starter</
 
artifactId>
  <version>1.1.3</version>
</dependency>

<dependency>
  <groupId>tk.mybatis</groupId>
  <artifactId>mapper-spring-boot-starter</artifactId>
  <version>1.1.4</version>
</dependency>

程式碼

public class BaseEntity {
    @Id
    @Column
 
(name = "Id")
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Integer id;

    @Transient
private Integer page = 1;

    @Transient
private Integer rows = 10;

    public Integer getId() {
        return id;
    }

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

    public Integer getPage() {
        return page;
    }

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

    public Integer getRows() {
        return rows;
    }

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

public interface MyMapper<T> extends Mapper<T>, MySqlMapper<T> {
    }

這裡注意，MyMapper<T>不能被springboot掃描到。

entity   

Table指定資料庫表面 @id主鍵 屬性名預設就是開啟駝峰的

@Data

@Table(name ="TB_KS_PUNISH_LOG")
public class PunishLog {
  @Id
private String plushId;

  private String areaCode;

  private String netbarWacode;

dao

簡單繼承MyMapper類即可

/**
 * @author lcc
 */
public interface PunishLogMapper1 extends MyMapper<PunishLog> {}

service 

分頁外掛非常方便，攔截mybatis sql 執行前加入分頁的sql

PageHelper.startPage(page, rows);
Example example = new Example(PunishLog.class);
example.createCriteria().orEqualTo("netbarWacode", punishLogAttach.getNetbarWacode());