JPA创建实体类映射表+ 创建索引

Posted 2022-12-04 dream_heheda

创建表 tb_student + 创建索引

主键：studentId

索引：

• 联合索引: index_tb_student
• 单个索引: index_student_studentName
• 单个索引: index_student_studentAge

import java.math.BigDecimal;
import java.util.Date;
 
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Index;
import javax.persistence.Table;
   
import lombok.Data;
   
@Data
@Entity
@Table(name = "tb_student",
       indexes =  @Index(name = "index_tb_student", columnList = "classNo,studentName"),
                   @Index(name = "index_student_studentName", columnList = "studentName"),
                   @Index(name = "index_student_studentAge", columnList = "studentAge") )
public class Student 
   
    @Id
    private String studentId;
   
    @Column
    private String studentName;
   
    @Column
    private Integer studentAge;
   
    @Column
    private String classNo;
     
    @Column(precision = 18, scale = 4)
    private BigDecimal height;
     
    @Column
    private Date lastModiftyDate;