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Java图书答疑

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所属版块： Java答疑区

Liang

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java项目开发案例全程实录（第二版）第4章

发表在Java图书答疑 2011-09-04

是否精华是否

版块置顶: 是否

我将光盘的内容复制到电脑上，然后导入到eclipse后，显示那个项目代码出错！又找不到错在哪！继续运行就只见显示说：java.lang.ClassNotFoundException: com.microsoft.jdbc.sqlserver.SQLServerDriver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.mwq.dao.JDBC.<clinit>(JDBC.java:19)
at com.mwq.dao.BaseDao.selectSomeValue(BaseDao.java:62)
at com.mwq.dao.Dao.sUserNameOfNotFreeze(Dao.java:23)
at com.mwq.frame.LandFrame.<init>(LandFrame.java:162)
at com.mwq.DrinkeryManage.<init>(DrinkeryManage.java:16)
at com.mwq.DrinkeryManage$1.run(DrinkeryManage.java:38)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
java.sql.SQLException: No suitable driver found for jdbc:microsoft:sqlserver://127.0.0.1:1433;DatabaseName=db_DrinkeryManage
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at com.mwq.dao.JDBC.getConnection(JDBC.java:29)
at com.mwq.dao.BaseDao.selectSomeValue(BaseDao.java:62)
at com.mwq.dao.Dao.sUserNameOfNotFreeze(Dao.java:23)
at com.mwq.frame.LandFrame.<init>(LandFrame.java:162)
at com.mwq.DrinkeryManage.<init>(DrinkeryManage.java:16)
at com.mwq.DrinkeryManage$1.run(DrinkeryManage.java:38)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at com.mwq.dao.BaseDao.selectSomeValue(BaseDao.java:64)
at com.mwq.dao.Dao.sUserNameOfNotFreeze(Dao.java:23)
at com.mwq.frame.LandFrame.<init>(LandFrame.java:162)
at com.mwq.DrinkeryManage.<init>(DrinkeryManage.java:16)
at com.mwq.DrinkeryManage$1.run(DrinkeryManage.java:38)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

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精彩评论 5

link1986

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开心，今天又有时间打卡学习了

2021-10-11 09:59:58

2011-09-05

沙发

你的错误是没有找到数据库的连接驱动由于版权原因光盘中我们不能提供这类的驱动程序需要用户自行下载

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Liang

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2021-07-25 11:44:38

2011-09-05

板凳

[FIELDSET][LEGEND]引自：1楼[/LEGEND]
你的错误是没有找到数据库的连接驱动由于版权原因光盘中我们不能提供这类的驱动程序需要用户自行下载

[/FIELDSET]

回复：
能不能说一下这驱动程序的名称，或者说给个网站去下载呢？》

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link1986

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TA的每日心情

开心，今天又有时间打卡学习了

2021-10-11 09:59:58

2011-09-05

地板

能不能说一下这驱动程序的名称，或者说给个网站去下载呢？》
[/FIELDSET]

回复：
看这个错误的提示是需要SQL server 2005的jar包
http://download.microsoft.com/download/C/D/3/CD301BF5-E28F-45EA-A1DA-53F2EB448D78/sqljdbc_1.2.2828.100_enu.exe

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Liang

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2021-07-25 11:44:38

2011-09-05

[FIELDSET][LEGEND]引自：3楼[/LEGEND]

  能不能说一下这驱动程序的名称，或者说给个网站去下载呢？》
[/FIELDSET]

回复：
  看这个错误的提示是需要SQL server 2005的jar包
http://download.microsoft.com/download/C/D/3/CD301BF5-E28F-45EA-A1DA-53F2EB448D78/sqljdbc_1.2.2828.100_enu.exe
[/FIELDSET]

回复：我下载了这东西，然后双击他，得到一个像安装一样的窗口，我选了Unzip。然后它就自动生成了
  Microsoft SQL Server 2005 JDBC Driver这个文件夹！里面有一个是sqljdbc这个文件！我就把这个文件复制到eclipse的项目里新建的lib文件夹里去，然后构建路径。最后运行了一下，还是出现开始时出现的问题！难道这个驱动用不得？

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无语_mrkj

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2011-09-08

请将书中152页介绍的例程01中的数据库连接的代码中的第一行中的
com.microsoft.jdbc.sqlserver.SQLServerDriver
修改为
com.microsoft.sqlserver.jdbc.SQLServerDriver
将第二行中的URL中的
jdbc:microsoft:sqlserver:
修改为
jdbc:sqlserver:

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