Java 无法使用SquirreSQL连接到SQL数据库

尝试使用SquirreSQL连接到数据库时，我遇到以下错误

错误：

堆栈跟踪：

java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:202)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.awaitConnection(OpenConnectionCommand.java:132)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.access$100(OpenConnectionCommand.java:45)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand$2.run(OpenConnectionCommand.java:115)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.executeConnect(OpenConnectionCommand.java:175)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.access$000(OpenConnectionCommand.java:45)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand$1.run(OpenConnectionCommand.java:104)
    ... 5 more
Caused by: java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at net.sourceforge.squirrel_sql.fw.util.MyURLClassLoader.findClass(MyURLClassLoader.java:209)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:270)
    at net.sourceforge.squirrel_sql.fw.sql.SQLDriverManager.getConnection(SQLDriverManager.java:128)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.executeConnect(OpenConnectionCommand.java:167)
    ... 7 more

我还尝试检查驱动程序属性，并显示以下错误：

加载JDBC驱动程序“

Microsoft MSSQL Server JDBC驱动程序

”失败。

---

无法加载驱动程序属性选项卡。

您需要将驱动程序复制到squirrel sql/lib文件夹中。 我对MySql驱动程序也有同样的问题。 复制到以下驱动器后：

$HOME/squirrel-sql-3.7/lib/mysql-connector-java-3.0.17-ga-bin.jar

---

然后重新启动Squirrel-不再出现错误。

您是否安装了MSSQL JDBC驱动程序，并通过其驱动程序管理器将其提供给Squirrel？你读过这部分了吗？很抱歉更新太晚了。原来我还没有配置驱动程序。在我将sqljdbc4.jar放在SQuirrel>Contents>Resources>Java>lib中之后，问题已经解决。谢谢你的答复。非常感谢：）@ariabele哪里可以找到sqljdbc4.jar？@zhanxw，官方下载页面是：

$HOME/squirrel-sql-3.7/lib/mysql-connector-java-3.0.17-ga-bin.jar