标签: jtds

我的sql server实例名是MYPC\SQLEXPRESS,我正在尝试创建一个jTDS连接字符串来连接数据库'Blog'.有人可以帮我完成吗？

我想这样做:

DriverManager.getConnection("jdbc:jtds:sqlserver://127.0.0.1:1433/Blog", "user", "password");

我明白了

 java.sql.SQLException: Network error IOException: Connection refused: connect
    at net.sourceforge.jtds.jdbc.ConnectionJDBC2.<init>(ConnectionJDBC2.java:395)
    at net.sourceforge.jtds.jdbc.ConnectionJDBC3.<init>(ConnectionJDBC3.java:50)
    at net.sourceforge.jtds.jdbc.Driver.connect(Driver.java:184)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at SqlConnection.Connect(SqlConnection.java:19)
    at main.main(main.java:11)
Caused by: java.net.ConnectException: Connection refused: connect
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(Unknown Source)
    at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
    at java.net.PlainSocketImpl.connect(Unknown Source)
    at java.net.SocksSocketImpl.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at net.sourceforge.jtds.jdbc.SharedSocket.createSocketForJDBC3(SharedSocket.java:305)
    at net.sourceforge.jtds.jdbc.SharedSocket.<init>(SharedSocket.java:255)
    at net.sourceforge.jtds.jdbc.ConnectionJDBC2.<init>(ConnectionJDBC2.java:323)
    ... 6 more

我正在评估JDBC驱动程序的整个过程,特别是与SQL Server 2008一起使用Windows身份验证.我收集了一份我发现的列表,并在下面列出了它们.

我的问题是,是否有任何其他与SQL Server 2008兼容的JDBC驱动程序,我还应该查看？

1. Microsoft JDBC驱动程序

   URL:http://msdn.microsoft.com/en-us/sqlserver/aa937724

   优点:SQL Server 2008的官方Microsoft JDBC驱动程序!基于几年前微软购买的JNetDirect JSQLConnect驱动程序v3,自那以后它们一直在构建它.我被JNetDirect JSQLConnect的支持告知了这一点.

   缺点:似乎有很多连接/稳定性问题,不相信我,只是谷歌关于它:).没有办法禁用语句准备/池化这是我正在寻找的东西.

   JDBC合规性:虽然许多方法抛出UnimplementedException,但声称仍然符合JDBC 4.0!

   JDBC类型:4

   价格:免费

2. Progress DataDirect

   网址:http://www.datadirect.com/index.html

   优点:声称是顶级的,被Informatica等众多应用程序使用,该公司已存在多年!快速支持 - 我已经简要地处理了它们.

   缺点:？

   JDBC合规性:声称符合JDBC 4.0

   JDBC类型:5

   价格:不是免费的

3. JTDS

   网址:http://jtds.sourceforge.net/

   优点:比官方的Microsoft JDBC驱动程序快得多.有一种方法可以禁用准备好的语句.

   缺点:？

   JDBC合规性:仅符合 JDBC 3.0.这对我来说是一个交易破坏者,因为不支持像.validate()和.isClosed()这样的重要方法,因为它们是JDBC 4.0方法.

   JDBC类型:4

   价格:免费 - 开源

4. INET Merlia

   网址:http://www.inetsoftware.de/products/jdbc-driver/ms-sql/merlia

   优点 …

我想知道是否可以在事务中运行多个DDL语句.我对SQL Server特别感兴趣,尽管其他数据库(至少Oracle,PostgreSQL)的答案也很有趣.

我一直在为事务中创建的表做一些"CREATE TABLE"和"CREATE VIEW",似乎有些不一致,我想知道DDL是否不应该在事务中完成...

我可能会在事务之外移动DDL,但我想得到一些参考.我到目前为止所发现的:

• MSDN页面数据库引擎中的隔离级别清楚地说明在快照隔离下运行的显式事务中可以执行哪些DDL操作存在限制 - 但我没有使用快照隔离,这应该导致错误.
  • 这可以解释为可以在不同隔离级别的显式事务中执行DDL操作吗？
• 的Oracle®数据库网关用于SQL Server用户指南#DDL语句指出,只有一个DDL语句可以在给定的交易执行 -这是同样有效的SQL Server使用直？

对于Oracle:

• 在SO问题单元中测试需要在事务中的DDL语句,据说Oracle对DDL语句进行了隐式提交？(即使没有参考)

如果它重要,我通过JTDS JDBC驱动程序使用Java.

br Touko

每个驱动程序之间有什么区别？我的意思是,除了其中一个是开源的

每个人的利弊是什么？

你会推荐哪一个？

这里是jTDS自己对这个主题的看法:http://jtds.sourceforge.net/

我正在尝试使用Java JTDS驱动程序连接到Scala中的数据库.但是,每当我尝试使用它时,我都会收到错误的版本(java？)错误.

java.lang.UnsupportedClassVersionError:net/sourceforge/jtds/jdbcx/JtdsDataSource:不支持的major.minor版本51.0

object DaoDriverAdaptor {
  import java.sql.{DriverManager, Connection}

  private def loadDriver() {
    try {
      Class.forName("net.sourceforge.jtds.jdbcx.JtdsDataSource")
    } catch {
      case e: Exception  => {
        println("ERROR: Driver not available: " + e.getMessage)
        throw e
      }
    }
  }

• Scala版本:2.9.2
• Java版本:1.6
• 使用jtds 1.3.0
• 输出java -version:

java版"1.6.0_35"Java(TM)SE运行时环境(版本1.6.0_35-b10-428-11M3811)Java HotSpot(TM)64位服务器VM(版本20.10-b01-428,混合模式)

我们将JTDS和Microsoft SQL Server用于在JBoss上运行的Java EE应用程序,我们发现JTDS的速度提高了30%到50%,在高并发情况下对应用程序进行基准测试并保持完全相同的硬件/软件仅更改数据源配置中的驱动程序.

虽然我们已经看到很多有利于JTDS的选择,所以我们想要去做它我仍然很好奇:

• 为什么 JTDS驱动程序要快得多？
• 为什么微软永远不会像JTDS那样更新其驱动程序？

使用最新的JDBC 3.0版本和最新的JTDS版本以及使用在具有专用SAN的16核心安装上运行的SQL Server 2008进行比较.

我正在尝试从java程序连接到本地主机上运行的MS SQL Server 2005 Express数据库.

我尝试了在运行MS SQL Server 2000的另一个系统(相同的jave代码)上使用的相同连接URL(下面).但是这不起作用.

jdbc:jtds:sqlserver://127.0.0.1:1433/Finance

有任何想法吗？

我在连接SQL数据库时遇到问题.每当我尝试连接到SQL服务器时,我都会收到以下错误;

Caused by: org.hibernate.exception.JDBCConnectionException: Error calling Driver#connect
    at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:132)
    at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator$1$1.convert(BasicConnectionCreator.java:118)
    at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.convertSqlException(BasicConnectionCreator.java:140)
    at org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:58)
    at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:75)
    at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:106)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:260)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:94)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206)
    at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1887)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1845)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:857)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)
    at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:425)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:849)
    at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:75)
    ... 143 more
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error: "SQL Server did not return a …

我正在尝试使用jdbcTemplate连接到Java中的数据库,我得到以下错误.我用谷歌搜索了很长时间,我找到的所有解决方案都没有解决我的问题.我尝试了几个不同的DB(SQLServer和MySQL),但都没有.

SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path [/promotion-handler-admin] threw exception [Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!] with root cause
com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source.
    at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1319)
    at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557)
    at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525)
    at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
    at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:202)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:622)
    ...

这是我的属性文件:

app.driverClassName=net.sourceforge.jtds.jdbc.Driver
app.url=jdbc:sqlserver://myUrl:port;databaseName=my_database
app.username=myUsername
app.password=myPassword

web应用/ …

我正在将Web应用程序(WAR)部署到Tomcat 8 Web容器.

WAR在'/ WEB-INF/lib'目录中包含以下jTDS JDBC驱动程序:

<dependency org="net.sourceforge.jtds" name="jtds" rev="1.3.1" />

(文件是:) jtds-1.3.1.jar.

这是资源的定义方式META-INF/context.xml:

<Resource name="jdbc/jtds/sybase/somedb"
          auth="Container"
          type="javax.sql.DataSource"
          driverClassName="net.sourceforge.jtds.jdbc.Driver"
          url="jdbc:jtds:sybase://localhost:2501/somedb"
          username="someuser" password="somepassword"
/>

在我的代码中,我以正常方式获取javax.sql.DataSource:

InitialContext cxt = new InitialContext();
if ( cxt == null ) {
    throw new RuntimeException("Uh oh -- no context!");
}
DataSource ds = (DataSource) cxt.lookup( lookupName );

我进一步验证(通过打印)DataSource对象ds是期望的类型:

org.apache.tomcat.dbcp.dbcp2.BasicDataSource

...但是当我尝试从中获取连接时:

Connection conn = ds.getConnection();

......我得到以下描述:

java.lang.AbstractMethodError
net.sourceforge.jtds.jdbc.JtdsConnection.isValid(JtdsConnection.java:2833)
org.apache.tomcat.dbcp.dbcp2.DelegatingConnection.isValid(DelegatingConnection.java:924)
org.apache.tomcat.dbcp.dbcp2.PoolableConnection.validate(PoolableConnection.java:282)
org.apache.tomcat.dbcp.dbcp2.PoolableConnectionFactory.validateConnection(PoolableConnectionFactory.java:359)
org.apache.tomcat.dbcp.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:2316)
org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2299)
org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2043)
org.apache.tomcat.dbcp.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1543)

是什么赋予了？