Jpa用sql server 2008R2实现eclipse链接

时间：2014-07-05 21:33:22

标签： java sql-server eclipse jpa eclipselink

您好我一直试图将jpa实体类保存到sql server 2008 R2数据库中。但是我遇到了一些问题。我现在发布的问题已经在堆栈溢出但未解决

[EL Info]: 2014-07-05 21:06:30.965--ServerSession(2052069)--EclipseLink, version: Eclipse Persistence Services - 2.5.0.v20130507-3faac2b
[EL Info]: connection: 2014-07-05 21:06:37.337--ServerSession(2052069)--file:/D:/eclipse/workspace/JpaExamples/build/classes/_User login successful
[EL Warning]: 2014-07-05 21:06:39.741--ServerSession(2052069)--Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near the keyword 'USER'.
Error Code: 156
Call: CREATE TABLE USER (ID INTEGER IDENTITY NOT NULL, LOGIN VARCHAR(255) NULL, NAME VARCHAR(255) NULL, PASSWORD VARCHAR(255) NULL, PRIMARY KEY (ID))
Query: DataModifyQuery(sql="CREATE TABLE USER (ID INTEGER IDENTITY NOT NULL, LOGIN VARCHAR(255) NULL, NAME VARCHAR(255) NULL, PASSWORD VARCHAR(255) NULL, PRIMARY KEY (ID))")
[EL Warning]: 2014-07-05 21:06:40.192--UnitOfWork(20389947)--Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near the keyword 'USER'.
Error Code: 156
Call: INSERT INTO USER (LOGIN, NAME, PASSWORD) VALUES (?, ?, ?)
    bind => [3 parameters bound]
Query: InsertObjectQuery(logon.User@7668ba)
Exception in thread "main" javax.persistence.RollbackException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near the keyword 'USER'.
Error Code: 156
Call: INSERT INTO USER (LOGIN, NAME, PASSWORD) VALUES (?, ?, ?)
    bind => [3 parameters bound]
Query: InsertObjectQuery(logon.User@7668ba)
    at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:157)
    at logon.LogonTest.main(LogonTest.java:29)
Caused by: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near the keyword 'USER'.
Error Code: 156
Call: INSERT INTO USER (LOGIN, NAME, PASSWORD) VALUES (?, ?, ?)
    bind => [3 parameters bound]
Query: InsertObjectQuery(logon.User@7668ba)
    at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:331)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:895)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeNoSelect(DatabaseAccessor.java:957)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:630)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:558)
    at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:1995)
    at org.eclipse.persistence.sessions.server.ClientSession.executeCall(ClientSession.java:296)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:242)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:228)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.insertObject(DatasourceCallQueryMechanism.java:377)
    at org.eclipse.persistence.internal.queries.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:165)
    at org.eclipse.persistence.internal.queries.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:180)
    at org.eclipse.persistence.internal.queries.DatabaseQueryMechanism.insertObjectForWrite(DatabaseQueryMechanism.java:485)
    at org.eclipse.persistence.queries.InsertObjectQuery.executeCommit(InsertObjectQuery.java:80)
    at org.eclipse.persistence.queries.InsertObjectQuery.executeCommitWithChangeSet(InsertObjectQuery.java:90)
    at org.eclipse.persistence.internal.queries.DatabaseQueryMechanism.executeWriteWithChangeSet(DatabaseQueryMechanism.java:300)
    at org.eclipse.persistence.queries.WriteObjectQuery.executeDatabaseQuery(WriteObjectQuery.java:58)
    at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:899)
    at org.eclipse.persistence.queries.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:798)
    at org.eclipse.persistence.queries.ObjectLevelModifyQuery.executeInUnitOfWorkObjectLevelModifyQuery(ObjectLevelModifyQuery.java:108)
    at org.eclipse.persistence.queries.ObjectLevelModifyQuery.executeInUnitOfWork(ObjectLevelModifyQuery.java:85)
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2894)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1797)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1779)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1730)
    at org.eclipse.persistence.internal.sessions.CommitManager.commitNewObjectsForClassWithChangeSet(CommitManager.java:226)
    at org.eclipse.persistence.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:125)
    at org.eclipse.persistence.internal.sessions.AbstractSession.writeAllObjectsWithChangeSet(AbstractSession.java:4200)
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabase(UnitOfWorkImpl.java:1439)
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1529)
    at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.commitRootUnitOfWork(RepeatableWriteUnitOfWork.java:277)
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitAndResume(UnitOfWorkImpl.java:1167)
    at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:132)
    ... 1 more
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near the keyword 'USER'.
    at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:216)
    at com.microsoft.sqlserver.jdbc.SQLServerStatement.getNextResult(SQLServerStatement.java:1515)
    at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.doExecutePreparedStatement(SQLServerPreparedStatement.java:404)
    at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement$PrepStmtExecCmd.doExecute(SQLServerPreparedStatement.java:350)
    at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:5696)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:1715)
    at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(SQLServerStatement.java:180)
    at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(SQLServerStatement.java:155)
    at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.executeUpdate(SQLServerPreparedStatement.java:314)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:885)
    ... 32 more

我的persistence.xml文件在这里

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
    <persistence-unit name="User" transaction-type="RESOURCE_LOCAL">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        <class>logon.User</class>
         <validation-mode>NONE</validation-mode>  
         <properties>
               <property name="javax.persistence.jdbc.driver" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" />
               <property name="javax.persistence.jdbc.url"
                    value="jdbc:sqlserver://localhost:1433;databaseName=rithishdb;create=true" />
               <property name="javax.persistence.jdbc.user" value="sa" />
               <property name="javax.persistence.jdbc.password" value="google" />
               <property name="eclipselink.ddl-generation" value="create-tables" />
      <property name="eclipselink.ddl-generation.output-mode"
        value="database" />
          </properties>
    </persistence-unit>
</persistence>

我的实体类是

package logon;

import java.io.Serializable;
import javax.persistence.*;

/**
 * Entity implementation class for Entity: User
 *
 */
@Entity

public class User{

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private int id;
    String Name;
     String Login;
     String Password;

    public int get_Id(){
         return id;
    }
    public void set_Id(int id){
    this.id = id;
    }
    public String getName(){
    return Name;
    }
    public void setName(String Name){
    this.Name = Name;
    }
    public String getLogin(){     
    return Login;
    }
    public void setLogin(String Login){
         this.Login = Login;
    }
    public String getPassword(){
         return Password;
    }
    public void setPassword(String Password){
         this.Password = Password;
    }

    }

我坚持不懈的上课

package logon;

import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import javax.persistence.Query;

public class LogonTest {


     private static EntityManagerFactory factory;

     public static void main(String[] args) {
          factory = Persistence.createEntityManagerFactory("User");
          EntityManager em = factory.createEntityManager();
          // Read the existing entries and write to console


          // Create new user
          em.getTransaction().begin();
          User user = new User();

          user.setName("Tom Johnson");
          user.setLogin("tomj");
          user.setPassword("pass");
          em.persist(user);
          em.getTransaction().commit();

          em.close();
     }

}

我可以为此获得帮助

1 个答案:

答案 0 :(得分：0)

USER是SQL中的保留关键字。您需要引用实体的“table”属性，或者将名称更改为不是SQL关键字

请注意，一些JPA实现（例如我使用DataNucleus JPA的实现）会为您完成所有这些操作，而不会对用户造成此类特定于数据库的行为。

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