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java – Hibernate SQLite没有创建数据库

发布时间:2020-12-14 19:24:34 所属栏目:Java 来源:网络整理
导读:这是我的问题: 我有一个使用JavaFX Hibernate SQLite的桌面应用程序. 这是我的模特: @Entity@Table(name = "usuario")public class Usuario implements AbstractModel,Serializable { @Id @GeneratedValue(strategy = GenerationType.AUTO) private Intege
这是我的问题:

我有一个使用JavaFX Hibernate SQLite的桌面应用程序.
这是我的模特:

@Entity
@Table(name = "usuario")
public class Usuario implements AbstractModel,Serializable {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Integer id;

    @NotNull @Size(min=5,max=100)
    private String username;

    @NotNull @Size(min=5,max=100)
    private String password;

    @NotNull
    private Boolean administrador;

    @Version
    private Integer version;

    public Usuario() {
    }

    public Usuario(Integer id,String username,String password,Boolean admin,Integer version) {
        this.id = id;
        this.username = username;
        this.password = password;
        this.administrador = admin;
        this.version = version;
    }

    @Override
    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPasword(String password) {
        this.password = password;
    }

    public Boolean getAdministrador() {
        return administrador;
    }

    public void setAdministrador(Boolean administrador) {
        this.administrador = administrador;
    }

    public Integer getVersion() {
        return version;
    }

这是我的persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
  <persistence-unit name="PartyRockPU" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>
    <class>br.com.gear7.partyrock.model.Usuario</class>

    <properties>
      <property name="javax.persistence.jdbc.driver" value="org.sqlite.JDBC" />
      <property name="javax.persistence.jdbc.url" value="jdbc:sqlite:party_rock.sqlite" />
      <property name="javax.persistence.jdbc.user" value="" />
      <property name="javax.persistence.jdbc.password" value="" />

      <property name="hibernate.dialect" value="br.com.gear7.partyrock.utils.SQLiteDialect"/>
      <property name="hibernate.ejb.naming_strategy" value="org.hibernate.cfg.ImprovedNamingStrategy"/>
      <property name="hibernate.connection.charSet" value="UTF-8"/>
      <property name="hibernate.hbm2ddl.auto" value="create-drop"/>
    </properties>
  </persistence-unit>
</persistence>

最后这是我的SQLiteDialect

> package br.com.gear7.partyrock.utils;
/*
 * The author disclaims copyright to this source code. In place of
 * a legal notice,here is a blessing:
 * 
 * May you do good and not evil.
 * May you find forgiveness for yourself and forgive others.
 * May you share freely,never taking more than you give.
 *
 */
import java.sql.Types;

import org.hibernate.dialect.Dialect;
import org.hibernate.dialect.function.StandardSQLFunction;
import org.hibernate.dialect.function.SQLFunctionTemplate;
import org.hibernate.dialect.function.VarArgsSQLFunction;
import org.hibernate.Hibernate;

public class SQLiteDialect extends Dialect {
    public SQLiteDialect() {
        super();
        registerColumnType(Types.BIT,"integer");
        registerColumnType(Types.TINYINT,"tinyint");
        registerColumnType(Types.SMALLINT,"smallint");
        registerColumnType(Types.INTEGER,"integer");
        registerColumnType(Types.BIGINT,"bigint");
        registerColumnType(Types.FLOAT,"float");
        registerColumnType(Types.REAL,"real");
        registerColumnType(Types.DOUBLE,"double");
        registerColumnType(Types.NUMERIC,"numeric");
        registerColumnType(Types.DECIMAL,"decimal");
        registerColumnType(Types.CHAR,"char");
        registerColumnType(Types.VARCHAR,"varchar");
        registerColumnType(Types.LONGVARCHAR,"longvarchar");
        registerColumnType(Types.DATE,"date");
        registerColumnType(Types.TIME,"time");
        registerColumnType(Types.TIMESTAMP,"timestamp");
        registerColumnType(Types.BINARY,"blob");
        registerColumnType(Types.VARBINARY,"blob");
        registerColumnType(Types.LONGVARBINARY,"blob");
        // registerColumnType(Types.NULL,"null");
        registerColumnType(Types.BLOB,"blob");
        registerColumnType(Types.CLOB,"clob");
        registerColumnType(Types.BOOLEAN,"integer");

        registerFunction("concat",new VarArgsSQLFunction(org.hibernate.type.StandardBasicTypes.STRING,"","||",""));
        registerFunction("mod",new SQLFunctionTemplate(org.hibernate.type.StandardBasicTypes.INTEGER,"?1 % ?2"));
        registerFunction("substr",new StandardSQLFunction("substr",org.hibernate.type.StandardBasicTypes.STRING));
        registerFunction("substring",org.hibernate.type.StandardBasicTypes.STRING));
    }

    public boolean supportsIdentityColumns() {
        return true;
    }

    /*
     public boolean supportsInsertSelectIdentity() {
     return true; // As specify in NHibernate dialect
     }
     */

    public boolean hasDataTypeInIdentityColumn() {
        return false; // As specify in NHibernate dialect
    }

    /*
     public String appendIdentitySelectToInsert(String insertString) {
     return new StringBuffer(insertString.length()+30). // As specify in NHibernate dialect
     append(insertString).
     append("; ").append(getIdentitySelectString()).
     toString();
     }
     */

    public String getIdentityColumnString() {
        // return "integer primary key autoincrement";
        return "integer";
    }

    public String getIdentitySelectString() {
        return "select last_insert_rowid()";
    }

    public boolean supportsLimit() {
        return true;
    }

    public String getLimitString(String query,boolean hasOffset) {
        return new StringBuffer(query.length() + 20).append(query).append(
                hasOffset ? " limit ? offset ?" : " limit ?").toString();
    }

    public boolean supportsTemporaryTables() {
        return true;
    }

    public String getCreateTemporaryTableString() {
        return "create temporary table if not exists";
    }

    public boolean dropTemporaryTableAfterUse() {
        return false;
    }

    public boolean supportsCurrentTimestampSelection() {
        return true;
    }

    public boolean isCurrentTimestampSelectStringCallable() {
        return false;
    }

    public String getCurrentTimestampSelectString() {
        return "select current_timestamp";
    }

    public boolean supportsUnionAll() {
        return true;
    }

    public boolean hasAlterTable() {
        return false; // As specify in NHibernate dialect
    }

    public boolean dropConstraints() {
        return false;
    }

    public String getAddColumnString() {
        return "add column";
    }

    public String getForUpdateString() {
        return "";
    }

    public boolean supportsOuterJoinForUpdate() {
        return false;
    }

    public String getDropForeignKeyString() {
        throw new UnsupportedOperationException(
                "No drop foreign key syntax supported by SQLiteDialect");
    }

    public String getAddForeignKeyConstraintString(String constraintName,String[] foreignKey,String referencedTable,String[] primaryKey,boolean referencesPrimaryKey) {
        throw new UnsupportedOperationException(
                "No add foreign key syntax supported by SQLiteDialect");
    }

    public String getAddPrimaryKeyConstraintString(String constraintName) {
        throw new UnsupportedOperationException(
                "No add primary key syntax supported by SQLiteDialect");
    }

    public boolean supportsIfExistsBeforeTableName() {
        return true;

}
    public boolean supportsCascadeDelete() {
        return false;
    }
}

当我运行我的应用程序时,一切顺利但数据库文件没有被创建,这意味着我的表也没有被创建.

过去3个小时一直在努力解决这个问题,但找不到任何解决办法.

解决方法

对不起,我花了这么长时间,但这就解决了我的问题.我将DIALECT文件更改为我找到的更好的文件.
package gear7.partyrock.utils;

/*
 * The author disclaims copyright to this source code.  In place of
 * a legal notice,here is a blessing:
 *
 *    May you do good and not evil.
 *    May you find forgiveness for yourself and forgive others.
 *    May you share freely,never taking more than you give.
 *
 */

import java.sql.Types;
import org.hibernate.dialect.Dialect;

import org.hibernate.dialect.function.AbstractAnsiTrimEmulationFunction;
import org.hibernate.dialect.function.NoArgSQLFunction;
import org.hibernate.dialect.function.SQLFunction;
import org.hibernate.dialect.function.SQLFunctionTemplate;
import org.hibernate.dialect.function.StandardSQLFunction;
import org.hibernate.dialect.function.VarArgsSQLFunction;
import org.hibernate.type.StandardBasicTypes;

public class SQLiteDialect extends Dialect {
  public SQLiteDialect() {
    registerColumnType(Types.BIT,"boolean");
    registerColumnType(Types.TINYINT,"tinyint");
    registerColumnType(Types.SMALLINT,"smallint");
    registerColumnType(Types.INTEGER,"integer");
    registerColumnType(Types.BIGINT,"bigint");
    registerColumnType(Types.FLOAT,"float");
    registerColumnType(Types.REAL,"real");
    registerColumnType(Types.DOUBLE,"double");
    registerColumnType(Types.NUMERIC,"numeric($p,$s)");
    registerColumnType(Types.DECIMAL,"decimal");
    registerColumnType(Types.CHAR,"char");
    registerColumnType(Types.VARCHAR,"varchar($l)");
    registerColumnType(Types.LONGVARCHAR,"longvarchar");
    registerColumnType(Types.DATE,"date");
    registerColumnType(Types.TIME,"time");
    registerColumnType(Types.TIMESTAMP,"datetime");
    registerColumnType(Types.BINARY,"blob");
    registerColumnType(Types.VARBINARY,"blob");
    registerColumnType(Types.LONGVARBINARY,"blob");
    registerColumnType(Types.BLOB,"blob");
    registerColumnType(Types.CLOB,"clob");
    registerColumnType(Types.BOOLEAN,"boolean");

    //registerFunction( "abs",new StandardSQLFunction("abs") );
    registerFunction( "concat",new VarArgsSQLFunction(StandardBasicTypes.STRING,"") );
    //registerFunction( "length",new StandardSQLFunction("length",StandardBasicTypes.LONG) );
    //registerFunction( "lower",new StandardSQLFunction("lower") );
    registerFunction( "mod",new SQLFunctionTemplate(StandardBasicTypes.INTEGER,"?1 % ?2" ) );
    registerFunction( "quote",new StandardSQLFunction("quote",StandardBasicTypes.STRING) );
    registerFunction( "random",new NoArgSQLFunction("random",StandardBasicTypes.INTEGER) );
    registerFunction( "round",new StandardSQLFunction("round") );
    registerFunction( "substr",StandardBasicTypes.STRING) );
    registerFunction( "substring",new SQLFunctionTemplate( StandardBasicTypes.STRING,"substr(?1,?2,?3)" ) );
    registerFunction( "trim",new AbstractAnsiTrimEmulationFunction() {
        protected SQLFunction resolveBothSpaceTrimFunction() {
          return new SQLFunctionTemplate(StandardBasicTypes.STRING,"trim(?1)");
        }

        protected SQLFunction resolveBothSpaceTrimFromFunction() {
          return new SQLFunctionTemplate(StandardBasicTypes.STRING,"trim(?2)");
        }

        protected SQLFunction resolveLeadingSpaceTrimFunction() {
          return new SQLFunctionTemplate(StandardBasicTypes.STRING,"ltrim(?1)");
        }

        protected SQLFunction resolveTrailingSpaceTrimFunction() {
          return new SQLFunctionTemplate(StandardBasicTypes.STRING,"rtrim(?1)");
        }

        protected SQLFunction resolveBothTrimFunction() {
          return new SQLFunctionTemplate(StandardBasicTypes.STRING,"trim(?1,?2)");
        }

        protected SQLFunction resolveLeadingTrimFunction() {
          return new SQLFunctionTemplate(StandardBasicTypes.STRING,"ltrim(?1,?2)");
        }

        protected SQLFunction resolveTrailingTrimFunction() {
          return new SQLFunctionTemplate(StandardBasicTypes.STRING,"rtrim(?1,?2)");
        }
    } );
    //registerFunction( "upper",new StandardSQLFunction("upper") );
  }

  public boolean supportsIdentityColumns() {
    return true;
  }

  /*
  public boolean supportsInsertSelectIdentity() {
    return true; // As specify in NHibernate dialect
  }
  */

  public boolean hasDataTypeInIdentityColumn() {
    return false; // As specify in NHibernate dialect
  }

  /*
  public String appendIdentitySelectToInsert(String insertString) {
    return new StringBuffer(insertString.length()+30). // As specify in NHibernate dialect
      append(insertString).
      append("; ").append(getIdentitySelectString()).
      toString();
  }
  */

  public String getIdentityColumnString() {
    // return "integer primary key autoincrement";
    return "integer";
  }

  public String getIdentitySelectString() {
    return "select last_insert_rowid()";
  }

  public boolean supportsLimit() {
    return true;
  }

  public boolean bindLimitParametersInReverSEOrder() {
    return true;
  }

  protected String getLimitString(String query,boolean hasOffset) {
    return new StringBuffer(query.length()+20).
      append(query).
      append(hasOffset ? " limit ? offset ?" : " limit ?").
      toString();
  }

  public boolean supportsTemporaryTables() {
    return true;
  }

  public String getCreateTemporaryTableString() {
    return "create temporary table if not exists";
  }

  public boolean dropTemporaryTableAfterUse() {
    return true; // TODO Validate
  }

  public boolean supportsCurrentTimestampSelection() {
    return true;
  }

  public boolean isCurrentTimestampSelectStringCallable() {
    return false;
  }

  public String getCurrentTimestampSelectString() {
    return "select current_timestamp";
  }

  public boolean supportsUnionAll() {
    return true;
  }

  public boolean hasAlterTable() {
    return false; // As specify in NHibernate dialect
  }

  public boolean dropConstraints() {
    return false;
  }

  /*
  public String getAddColumnString() {
    return "add column";
  }
  */

  public String getForUpdateString() {
    return "";
  }

  public boolean supportsOuterJoinForUpdate() {
    return false;
  }

  public String getDropForeignKeyString() {
    throw new UnsupportedOperationException("No drop foreign key syntax supported by SQLiteDialect");
  }

  public String getAddForeignKeyConstraintString(String constraintName,boolean referencesPrimaryKey) {
    throw new UnsupportedOperationException("No add foreign key syntax supported by SQLiteDialect");
  }

  public String getAddPrimaryKeyConstraintString(String constraintName) {
    throw new UnsupportedOperationException("No add primary key syntax supported by SQLiteDialect");
  }

  public boolean supportsIfExistsBeforeTableName() {
    return true;
  }

  public boolean supportsCascadeDelete() {
    return true;
  }

  /* not case insensitive for unicode characters by default (ICU extension needed)
  public boolean supportsCaseInsensitiveLike() {
    return true;
  }
  */

  public boolean supportsTupleDistinctCounts() {
    return false;
  }

  public String getSelectGUIDString() {
    return "select hex(randomblob(16))";
  }
}

我在persistence.xml上更改了这一行

<property name="hibernate.hbm2ddl.auto" value="update"/>

这解决了我.

(编辑:李大同)

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