無法在休眠狀態下提取結果？

Question

我不能提取休眠結果..我想檢查一個帳戶，當他們登錄但它會引發異常：無法提取結果。

我的示例代碼：

我的POJO的：

@Entity 
@Table(name = "account") 
public class TestAccount implements Serializable { 

    @Id 
    @Column(name="IDACCOUNT") 
    private Integer idAccount; 

    @Column(name="USERNAME") 
    private String username; 

    @Column(name="PASSWORD") 
    private String password; 

    @Column(name="ISDELETED") 
    private Integer isDeleted; 

    @ManyToOne 
    @JoinColumn(name="ROLE") 
    private TestAccountRole accountRole; 

    @OneToOne(mappedBy="accountInfo", cascade=CascadeType.ALL) 
    private TestAccountInfo accountInfo; 
} 

---

@Entity 
@Table(name = "account_role") 
public class TestAccountRole implements Serializable { 
    @Id 
    @Column(name="IDACCOUNT_ROLE") 
    private Integer idAccountRole; 

    @Column(name="ROLE") 
    private String role; 

    @OneToMany(mappedBy="accountRole", fetch = FetchType.LAZY) 
    private Set<TestAccount> accounts = new HashSet<TestAccount>(0); 
} 

---

@Entity 
@Table(name = "account") 
public class TestAccountInfo implements Serializable { 

    @Id 
    @Column(name="IDACCOUNT_INFO") 
    private Integer idAccountInfo; 

    @Column(name = "BIRTHDAY") 
    private String birthday; 

    @Column(name = "SEX") 
    private String sex; 

    @Column(name = "ADDRESS") 
    private String address; 

    @Column(name = "EMAIL") 
    private String email; 

    @Column(name = "PHONE") 
    private String phone; 

    @Column(name = "ISDELETED") 
    private Integer isDeleted; 

    @OneToOne 
    @PrimaryKeyJoinColumn 
    private TestAccount accountInfo; 
} 

吾道：

public TestAccount Authenticate(String username, String password) { 

    String passMD5 = AccountUtil.md5(password); 
    Session session = sessionFactory.getCurrentSession(); 
    String sql = "from Account where username = ? and password = ?"; 
    Query query = session.createQuery(sql); 
    query.setString(0, username); 
    query.setString(1, passMD5); 
    //query.setInteger(2, 0); 
    TestAccount account = (TestAccount) query.uniqueResult(); 
    if (account != null) { 
     return account; 
    } 
    return null; 
} 

我的數據庫：

CREATE TABLE `account` (
    `IDACCOUNT` int(11) NOT NULL AUTO_INCREMENT, 
    `USERNAME` varchar(45) DEFAULT NULL, 
    `PASSWORD` varchar(45) DEFAULT NULL, 
    `ISDELETED` int(11) DEFAULT NULL, 
    `ROLE` int(11) DEFAULT NULL, 
    PRIMARY KEY (`IDACCOUNT`), 
    KEY `ROLEACCOUNT_idx` (`ROLE`), 
    CONSTRAINT `ROLEACCOUNT` FOREIGN KEY (`ROLE`) REFERENCES `account_role` (`IDACCOUNT_ROLE`) ON DELETE NO ACTION ON UPDATE NO ACTION 
) 

CREATE TABLE `account_info` (
    `IDACCOUNT_INFO` int(11) NOT NULL AUTO_INCREMENT, 
    `BIRTHDAY` varchar(45) DEFAULT NULL, 
    `SEX` varchar(45) DEFAULT NULL, 
    `ADDRESS` varchar(45) DEFAULT NULL, 
    `EMAIL` varchar(45) DEFAULT NULL, 
    `PHONE` varchar(12) DEFAULT NULL, 
    `ISDELETED` int(11) DEFAULT NULL, 
    PRIMARY KEY (`IDACCOUNT_INFO`), 
    CONSTRAINT `ACCOUNTINFO` FOREIGN KEY (`IDACCOUNT_INFO`) REFERENCES `account` (`IDACCOUNT`) ON DELETE NO ACTION ON UPDATE NO ACTION 
) 

CREATE TABLE `account_role` (
    `IDACCOUNT_ROLE` int(11) NOT NULL AUTO_INCREMENT, 
    `ROLE` varchar(45) DEFAULT NULL, 
    PRIMARY KEY (`IDACCOUNT_ROLE`) 
) 

例外

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet 
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:948) 
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:647) 
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 

root cause 

org.hibernate.exception.SQLGrammarException: could not extract ResultSet 
    org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:82) 
    org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49) 
    org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) 
    org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110) 
    org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:61) 
    org.hibernate.loader.Loader.getResultSet(Loader.java:2040) 
    org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1837) 


root cause 

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'account0_.IDACCOUNTROLE' in 'field list' 
    sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
    sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) 
    sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) 
    java.lang.reflect.Constructor.newInstance(Unknown Source) 
    com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
    com.mysql.jdbc.Util.getInstance(Util.java:386) 
    com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1054) 
    com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4237) 
    com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4169) 

Answer 1

更改爲

String sql = "from TestAccount where username = ? and password = ?"; 

Answer 2

@Entity 
@Table(name = "account") 
public class TestAccountInfo implements Serializable { 

表名是TestAccountInfo不正確。應該糾正爲 @Table（name = 「ACCOUNT_INFO」）

查詢也需要改變

String sql = "from TestAccount where username = ? and password = ?";