Java 将默认hibernate createSQLQuery强制转换为自制类的列表

我有一个问题-我刚开始休眠，需要强制转换一个表，该表由执行session.createSQLQuery（query.list（）命令返回。 我已尝试添加

addEntity（Result.class）

命令，但程序引发异常：

Exception in thread "main" javax.persistence.PersistenceException: org.hibernate.MappingException: Unknown entity: com.hib.entities.Result

我在mysql中的结果表如下所示：

package com.hib.entities;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table
public class Result {

    String bookName;
    String authorSurname;
    String authorFirstName;
    String authorPatronymic;
    Integer releaseDate;
    Integer amountBooks;

    public Result(String bookName, String authorSurname, String authorFirstName, String authorPatronymic, Integer releaseDate, Integer
            amountBooks) {
        this.bookName = bookName;
        this.authorSurname = authorSurname;
        this.authorFirstName = authorFirstName;
        this.authorPatronymic = authorPatronymic;
        this.releaseDate = releaseDate;
        this.amountBooks = amountBooks;
    }

    public void setBookName(String bookName) {
        this.bookName = bookName;
    }

    public void setAuthorSurname(String authorSurname) {
        this.authorSurname = authorSurname;
    }

    public void setAuthorFirstName(String authorFirstName) {
        this.authorFirstName = authorFirstName;
    }

    public void setAuthorPatronymic(String authorPatronymic) {
        this.authorPatronymic = authorPatronymic;
    }

    public void setReleaseDate(Integer releaseDate) {
        this.releaseDate = releaseDate;
    }

    public void setAmountBooks(Integer amountBooks) {
        this.amountBooks = amountBooks;
    }

    public String getBookName() {
        return bookName;
    }

    public String getAuthorSurname() {
        return authorSurname;
    }

    public String getAuthorFirstName() {
        return authorFirstName;
    }

    public String getAuthorPatronymic() {
        return authorPatronymic;
    }

    public Integer getReleaseDate() {
        return releaseDate;
    }

    public Integer getAmountBooks() {
        return amountBooks;
    }

    @Override
    public String toString() {
        return "Result{" +
                "bookName='" + bookName + '\'' +
                ", authorSurname='" + authorSurname + '\'' +
                ", authorFirstName='" + authorFirstName + '\'' +
                ", authorPatronymic='" + authorPatronymic + '\'' +
                ", releaseDate=" + releaseDate +
                ", amountBooks=" + amountBooks +
                '}';
    }
}

---

我曾尝试创建实体类结果并对其进行注释，但似乎失败了。 我的实体类如下所示：

package com.hib.entities;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table
public class Result {

    String bookName;
    String authorSurname;
    String authorFirstName;
    String authorPatronymic;
    Integer releaseDate;
    Integer amountBooks;

    public Result(String bookName, String authorSurname, String authorFirstName, String authorPatronymic, Integer releaseDate, Integer
            amountBooks) {
        this.bookName = bookName;
        this.authorSurname = authorSurname;
        this.authorFirstName = authorFirstName;
        this.authorPatronymic = authorPatronymic;
        this.releaseDate = releaseDate;
        this.amountBooks = amountBooks;
    }

    public void setBookName(String bookName) {
        this.bookName = bookName;
    }

    public void setAuthorSurname(String authorSurname) {
        this.authorSurname = authorSurname;
    }

    public void setAuthorFirstName(String authorFirstName) {
        this.authorFirstName = authorFirstName;
    }

    public void setAuthorPatronymic(String authorPatronymic) {
        this.authorPatronymic = authorPatronymic;
    }

    public void setReleaseDate(Integer releaseDate) {
        this.releaseDate = releaseDate;
    }

    public void setAmountBooks(Integer amountBooks) {
        this.amountBooks = amountBooks;
    }

    public String getBookName() {
        return bookName;
    }

    public String getAuthorSurname() {
        return authorSurname;
    }

    public String getAuthorFirstName() {
        return authorFirstName;
    }

    public String getAuthorPatronymic() {
        return authorPatronymic;
    }

    public Integer getReleaseDate() {
        return releaseDate;
    }

    public Integer getAmountBooks() {
        return amountBooks;
    }

    @Override
    public String toString() {
        return "Result{" +
                "bookName='" + bookName + '\'' +
                ", authorSurname='" + authorSurname + '\'' +
                ", authorFirstName='" + authorFirstName + '\'' +
                ", authorPatronymic='" + authorPatronymic + '\'' +
                ", releaseDate=" + releaseDate +
                ", amountBooks=" + amountBooks +
                '}';
    }
}

---

您能帮我解决这个问题吗？

您必须区分

会话.createQuery（查询）

和

会话.createSQLQuery（查询）

如果使用

session.createQuery（query）

您的查询将用

HQL

（非常类似于SQL）编写，您将能够这样做

Query q=session.createQuery（查询）
List myResultList=q.List（）

但是

如果要使用
session.createSQLQuery（query）
必须使用此

List<Result> myResultList = session.createSQLQuery(query).setResultTransformer(
    Transformers.aliasToBean(Result.class)).list(); 

List myResultList=session.createSQLQuery（query）.setResultTransformer(
Transformers.aliasToBean（Result.class））.list（）；

就我个人而言，我建议您使用
session.createQuery（query）
，这样您就可以从hibernate映射的建议中获益

在这篇文章中，您将找到关于hibernate上下文中HQL和SQL之间差异的更多解释