Hibernate HQL Join Query DOT节点没有左侧

我有两个模型类

Application.java

@Entity @Table(name = "Application", catalog = "mysqldb") @XmlRootElement public class Application extends BaseObject implements Serializable { private Long appId; private Long userId; private String name; private String desc; @Id @Column(name = "AppId") @GeneratedValue(strategy = GenerationType.AUTO) public Long getAppId() { return this.appId; } public void setAppId(Long appId) { this.appId = appId; } @Column(name = "userId", nullable = false) public Long getUserId() { return this.userId; } public void setUserId(Long userId) { this.userId = userId; } @Column(name = "name", length = 128, nullable = false) public String getName() { return this.name; } public void setName(String name) { this.name = name; } @Column(name = "Desc") public String getDesc() { return this.desc; } public void setDesc(String desc) { this.desc = desc; } } 

User.java

 @Entity @Table(name="User",catalog="mysqldb") @XmlRootElement public class Client extends BaseObject implements Serializable { private Long userId; private String name; @Id @Column(name="userId") @GeneratedValue(strategy=GenerationType.AUTO) public Long getUserId() { return this.userId; } public void setClientId(Long clientId) { this.clientId = clientId; } @Column(name="Name", length=128) public String getName() { return this.name; } public void setName(String name) { this.name = name; } } 

我没有提到两者之间有任何关系。

我正在尝试获取具有用户ID的应用程序列表，并获取用户名。

在我的ApplicationDaoImpl java类中，我有以下方法。

 @Override public List getAllByUser( Long userId) { String queryString = "select application.appId as appId, application.userId as userId, user.name as name, application.name as name" + " from com.mydb.model.Application application join com.mydb.model.User user" + " with application.userId = user.userId" + " where application.userId=?"; Session session = getSession(); Query query = session.createQuery(queryString); query.setParameter(0, userId); List list = query.list(); return new ArrayList(); } 

我试图获得结果并设置一个新对象。 （尚未设置为新对象。）

当我尝试执行此操作时，我得到以下exception

  java.lang.IllegalStateException: DOT node with no left-hand-side! at org.hibernate.hql.internal.ast.tree.DotNode.getLhs(DotNode.java:616) at org.hibernate.hql.internal.ast.tree.DotNode.getDataType(DotNode.java:595) at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromJoinElement(HqlSqlWalker.java:380) at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.joinElement(HqlSqlBaseWalker.java:3516) at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3302) at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3180) at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:706) at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:562) at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:299) at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:247) at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:248) at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:183) at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:136) at org.hibernate.engine.query.spi.HQLQueryPlan.(HQLQueryPlan.java:105) at org.hibernate.engine.query.spi.HQLQueryPlan.(HQLQueryPlan.java:80) at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:168) at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:221) at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:199) at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1735) at com.mypgm.dao.hibernate.ApplicationDaoImpl.getAllByUser(ApplicationDaoImpl.java:74) 

怎么解决这个？ 或者如何在不映射任何关系的情况下加入查询