@Index用法——javax.persistence.Index

package com.springup.utiku.model;import java.io.Serializable;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.Index;import javax.persistence.Table;@Entity@Table(indexes = {     @Index(name="studentAnswerQueIdIndex", columnList="studentAnswerQueId DESC"),    @Index(name="questionConIdIndex", columnList="questionConId")     })public class StudentAnswerConEntity implements Serializable {  private static final long serialVersionUID = 1L;  @Id  @GeneratedValue(strategy=GenerationType.AUTO)  private Long id;  private Long studentAnswerQueId;  private Long questionConId;  private String selected;// 学员答题记录  public StudentAnswerConEntity() {}  public StudentAnswerConEntity(Long studentAnswerQueId, Long questionConId) {    this.studentAnswerQueId = studentAnswerQueId;    this.questionConId = questionConId;  }  public Long getId() {    return id;  }  public void setId(Long id) {    this.id = id;  }  public Long getQuestionConId() {    return questionConId;  }  public void setQuestionConId(Long questionConId) {    this.questionConId = questionConId;  }  public Long getStudentAnswerQueId() {    return studentAnswerQueId;  }  public void setStudentAnswerQueId(Long studentAnswerQueId) {    this.studentAnswerQueId = studentAnswerQueId;  }  public String getSelected() {    return selected;  }  public void setSelected(String selected) {    this.selected = selected;  }}

原标题：@Index用法——javax.persistence.Index

关键词：JAVA