我在使用Hibernate时遇到问题。 Hibernate创建一些表，但不是全部。我已经在Google上阅读到MySql具有新的自动促进剂策略，因此旧的GenerationType.AUTO将不起作用。我不知道到底是什么问题，但是这里有一些尚未创建的表。
我已经花了大约两到五个小时，却找不到解决方案。
EventTrigger实体：
@SuppressWarnings("serial")
@Entity
@Table(name= "EventTrigger")
public class EventTrigger implements IControleEntity {
public static final String TABLE = "event_trigger";
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private long id;
@OneToMany(cascade = CascadeType.ALL,orphanRemoval = true, mappedBy = "trigger", targetEntity = AbstractEventTriggerAction.class)
@LazyCollection(LazyCollectionOption.FALSE)
private List<AbstractEventTriggerAction> actions = new ArrayList<>();
@OneToOne(fetch = FetchType.EAGER,optional = false, cascade = CascadeType.ALL, orphanRemoval = true)
@JoinColumn(name = "condition_bundle_id")
private EventTriggerConditionBundle conditionBundle;
@Temporal(TemporalType.TIMESTAMP)
@Column(nullable = false, updatable = false, name = "created_at")
private Date createdAt;
@Temporal(TemporalType.TIMESTAMP)
@Column(nullable = true, updatable = true, name = "last_fired_at")
private Date lastFiredAt;
@ManyToOne(optional = false , fetch = FetchType.LAZY)
@JoinColumn(name = "createdby_id")
private ControleUser createdBy;
@Column(name = "priority")
private int priority;
@Column(name = "outdated")
private boolean outdated;
@Enumerated
@Column(name = "type", nullable = false)
private EventTriggerType type;
@Column(name = "active")
private boolean active;
@Column(name = "name")
private String name;
@Column(name = "description")
private String description;
@Column(name = "grouping")
private String grouping;
@OneToOne(fetch = FetchType.LAZY,cascade = CascadeType.ALL, targetEntity = GlobalFilter.class)
@JoinColumn(name = "entity_filter_id", nullable = true)
private GlobalFilter entityFilter;
/*
* Reserved Fields Start
*/
@Column(name = "reserved_string1", columnDefinition = "TEXT")
private String reservedString1;
@Column(name = "reserved_string2", columnDefinition = "TEXT")
private String reservedString2;
@Column(name = "reserved_string3", columnDefinition = "TEXT")
private String reservedString3;
@Column(name = "reserved_string4", columnDefinition = "TEXT")
private String reservedString4;
@Column(name = "reserved_string5", columnDefinition = "TEXT")
private String reservedString5;
@Column(name = "reserved_long1")
private Long reservedLong1;
@Column(name = "reserved_long2")
private Long reservedLong2;
@Column(name = "reserved_long3")
private Long reservedLong3;
@Column(name = "reserved_long4")
private Long reservedLong4;
@Column(name = "reserved_long5")
private Long reservedLong5;
@Column(name = "reserved_boolean1")
private Boolean reservedBoolean1;
@Column(name = "reserved_boolean2")
private Boolean reservedBoolean2;
@Column(name = "reserved_boolean3")
private Boolean reservedBoolean3;
@Column(name = "reserved_boolean4")
private Boolean reservedBoolean4;
@Column(name = "reserved_boolean5")
private Boolean reservedBoolean5;
@Temporal(TemporalType.TIMESTAMP)
@Column(name = "reserved_date1")
private Date reservedDate1;
@Temporal(TemporalType.TIMESTAMP)
@Column(name = "reserved_date2")
private Date reservedDate2;
@Temporal(TemporalType.TIMESTAMP)
@Column(name = "reserved_date3")
private Date reservedDate3;
// gets and sets
}
历史实体：
public class History implements Comparable<History>, IIdEntity {
private static final long serialVersionUID = 3908163307906340358L;
public static final String TABLE = "history";
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(unique = true, nullable = false, name = "id")
private long id;
@Column(nullable = false, updatable = false, name = "created_at")
@Temporal(TemporalType.TIMESTAMP)
private Date createdAt;
@ManyToOne(optional = false, targetEntity = ControleUser.class)
@JoinColumn(name = "createdby_id")
private ControleUser createdBy;
@Column(nullable = false, name = "creatortype", updatable = false, length = 255)
@Enumerated(EnumType.STRING)
private HistoryCreatorType creatorType;
@Column(length = 8192, nullable = false, name = "message_de")
private String messageDe;
@Column(length = 8192, nullable = false, name = "message_en")
private String messageEn;
@Column(nullable = true, name = "subject_name")
private String subjectName;
@Column(nullable = true, name = "object_name")
private String objectName;
@Column(nullable = true, name = "controle_version")
private String controleVersion;
@Column(nullable = true, name = "hash")
private String hashValue;
@Column(nullable = true, name = "previous_hash")
private String prevHashValue;
// ------------------------- Start Foreign Keys -------------------------//
@ManyToOne(fetch = FetchType.LAZY, targetEntity = Account.class, optional = true)
@JoinColumn(name = "user_id")
private Account user;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = Permission.class, optional = true)
@JoinColumn(name = "permission_id")
private Permission permission;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = GridState.class, optional = true)
@JoinColumn(name = "gridstate_id")
private GridState gridstate;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = BusinessRole.class, optional = true)
@JoinColumn(name = "role_id")
private BusinessRole role;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = Employee.class, optional = true)
@JoinColumn(name = "globalid_id")
private Employee employee;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = SoDPolicy.class, optional = true)
@JoinColumn(name = "policyrule_id")
private SoDPolicy policyRule;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = Policy.class, optional = true)
@JoinColumn(name = "policy_id")
private Policy policy;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = OverlapPolicy.class, optional = true)
@JoinColumn(name = "overlap_policy_id")
private OverlapPolicy overlapPolicy;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = ChangeRequest.class, optional = true)
@JoinColumn(name = "changerequest_id")
private ChangeRequest changeRequest;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = WfResult.class, optional = true)
@JoinColumn(name = "wfresult_id", foreignKey = @ForeignKey(value = ConstraintMode.NO_CONSTRAINT))
private WfResult wfResult;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = OrgUnit.class, optional = true)
@JoinColumn(name = "orgunit_id")
private OrgUnit orgunit;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = ControleUser.class, optional = true)
@JoinColumn(name = "controleuser_id")
private ControleUser controleUser;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = Activity.class, optional = true)
@JoinColumn(name = "activity_id")
private Activity activity;
@ManyToOne(fetch = FetchType.LAZY, targetEntity = ControleUserGroup.class, optional = true)
@JoinColumn(name = "group_id")
private ControleUserGroup group;
@Enumerated(EnumType.STRING)
@Column(name = "action_code", nullable = true, length = 255)
private HistoryActionCode historyActionCode;
// gets ans sets
}
我跑步时遇到了这个异常：
2019-03-06 15:37:14,710 ERROR: org.hibernate.engine.jdbc.spi.SqlExceptionHelper - Table '_controle_defaultclient_aa_.delegation_rule' doesn't exist
2019-03-06 15:37:14,746 ERROR: de.nexis.controle.dao.db.session.DatabaseThread - id to load is required for loading
java.lang.IllegalArgumentException: id to load is required for loading
at org.hibernate.event.spi.LoadEvent.<init>(LoadEvent.java:93)
at org.hibernate.event.spi.LoadEvent.<init>(LoadEvent.java:63)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.doGetReference(SessionImpl.java:2884)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.lambda$getReference$0(SessionImpl.java:2836)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.perform(SessionImpl.java:2860)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.getReference(SessionImpl.java:2836)
at org.hibernate.internal.SessionImpl.load(SessionImpl.java:1087)
at de.nexis.controle.dao.dao.genericdaos.GenericHibernateSettingsDAO.findById(GenericHibernateSettingsDAO.java:56)
at de.nexis.controle.clientmgt.ui.project.CreateProjectWizard$1.runInternal(CreateProjectWizard.java:151)
at de.nexis.controle.dao.db.session.DatabaseThread.run(DatabaseThread.java:139)
这是Hibernate无法创建的表 delegation_rule ：
@SuppressWarnings("serial")
@Entity
@Table(name = "delegation_rule")
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name = "main_type", discriminatorType = DiscriminatorType.STRING)
@DiscriminatorValue(value = DelegationRuleTypeString.SIMPLE)
public class DelegationRule implements IIdEntity {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
@Column(name = "main_type", insertable = false, updatable = false)
private String mainType;
@Column(name = "idx")
private int index;
/**
* the type of the rule - defines the action
**/
@Enumerated(EnumType.STRING)
@Column(name = "typ")
private DelegationRuleType type;
@Column(name = "fall_through")
private boolean fallThrough;
// just in case we need some reserved values for later db changes
@Column(name = "reserved_boolean")
private boolean reservedBoolean;
@Column(name = "reserved_integer")
private int reservedInteger;
@Column(name = "reserved_long")
private long reservedLong;
@Column(name = "reserved_string", columnDefinition = "TEXT")
private String reservedString;
@Column(name = "reserved_string_2", columnDefinition = "TEXT")
private String reservedString2; // end reserved values
/**
* a short description of this rule to help the users
*/
@Column(name = "description", columnDefinition = "TEXT")
private String description;
/**
* the {@link DelegationPath} that this Rule belongs to
*/
@ManyToOne(optional = true, fetch = FetchType.EAGER)
@JoinColumn(name = "delegation_path_id")
private DelegationPath delegationPath;
// the delegate filter @ManyToOne @JoinColumn(name = "employee_attribute_definition")
private AttributeDefinition employeeAttributeDefinition;
@Enumerated(EnumType.STRING)
@Column(name = "employee_operation")
private DelegationConditionOperation employeeOperation;
@Column(name = "employee_filter_value", columnDefinition = "TEXT")
private String employeeFilterValue;
// --------------- constructors -------------------- //
public DelegationRule() { // mostly for hibernate
}
public DelegationRule(DelegationRuleType type, String description) {
this.type = type;
this.description = description;
}
// ---------------- getters and setters -------------------- //
public String getMainType() {
return mainType;
}
public void setMainType(String mainType) {
this.mainType = mainType;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public DelegationRuleType getType() {
return type;
}
public void setType(DelegationRuleType type) {
this.type = type;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public DelegationPath getDelegationPath() {
return delegationPath;
}
public void setDelegationPath(DelegationPath delegationPath) {
this.delegationPath = delegationPath;
}
public int getIndex() {
return index;
}
public void setIndex(int index) {
this.index = index;
}
public AttributeDefinition getEmployeeAttributeDefinition() {
return employeeAttributeDefinition;
}
public void setEmployeeAttributeDefinition(AttributeDefinition employeeAttributeDefinition) {
this.employeeAttributeDefinition = employeeAttributeDefinition;
}
public DelegationConditionOperation getEmployeeOperation() {
return employeeOperation;
}
public void setEmployeeOperation(DelegationConditionOperation employeeOperation) {
this.employeeOperation = employeeOperation;
}
public String getEmployeeFilterValue() {
return employeeFilterValue;
}
public void setEmployeeFilterValue(String employeeFilterValue) {
this.employeeFilterValue = employeeFilterValue;
}
public boolean isFallThroughEnabled() {
return fallThrough;
}
public void setFallThrough(boolean fallThrough) {
this.fallThrough = fallThrough;
}
public void copyEmployeeFilter(DelegationRule original) {
employeeAttributeDefinition = original.employeeAttributeDefinition;
employeeOperation = original.employeeOperation;
employeeFilterValue = original.employeeFilterValue;
}
}
请大家告诉我，Hibernate到底出了什么问题。
答案 0 :(得分：0)
这个问题不是 Hibernate 的问题，问题在于您正在使用数据库保留字（例如 index ）作为变量名。解决这个问题，它就消失了。