创建新数据库连接时出错

Question

我正在尝试在iReport 5.6.0中添加新的数据库JDBC连接。我使用的是Microsoft SQL Server 2014 - 12.0.4213.0。我在ireport工具的类路径中添加了mysql-connector-java-5.1.38-bin.jar。

是连接详细信息的屏幕截图。

当我测试连接时，它给出了错误信息消息：

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
Last packet sent to the server was 0 ms ago.
Level:
SEVERE
Stack Trace:
Communications link failure Last packet sent to the server was 0 ms ago.
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
java.lang.reflect.Constructor.newInstance(Unknown Source)
com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074)
com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2103)
com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:718)
com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
java.lang.reflect.Constructor.newInstance(Unknown Source)
com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302)
com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282)
com.jaspersoft.ireport.designer.connection.JDBCConnection.getConnection(JDBCConnection.java:140)
com.jaspersoft.ireport.designer.connection.JDBCConnection.test(JDBCConnection.java:449)
com.jaspersoft.ireport.designer.connection.gui.ConnectionDialog.jButtonTestActionPerformed(ConnectionDialog.java:335)
com.jaspersoft.ireport.designer.connection.gui.ConnectionDialog.access$300(ConnectionDialog.java:43)
com.jaspersoft.ireport.designer.connection.gui.ConnectionDialog$4.actionPerformed(ConnectionDialog.java:290)

Answer 1

在屏幕截图中，您提到您正在使用MySql 和不是sql server 。

只需选择Jar，向导设置和数据库供应商的正确组合。