小编wat*_*atr的帖子

设计可轻松迁移到Google App Engine

我将很快开始设计一个Web应用程序,虽然我在SQL世界中有很多经验,但我不知道我需要考虑这样做,目标是在非常近的地方迁移到GAE未来.

或者,我可以从一开始就为GAE设计应用程序,所以在这种情况下,我需要考虑哪些差异？换句话说,为GAE编写应用程序的DO和DON是什么,来自过去的关系数据库.

python google-app-engine web2py non-relational-database relational-database

wat*_*atr

lucky-day

6
推荐指数

1
解决办法

421
查看次数

Jasper报告iReport与MS Access DB的连接

有没有人使用Jasper Reports iReport成功连接到他们的MS Access数据库？

我正在运行Windows XP并已下载North Wind .mdb示例文件.

有人可以提供步骤/配置文件粘贴或链接到教程如何连接到该文件并开始构建查询和报告？

我在JDBC数据库连接向导中使用的信息:

<?xml version="1.0"?><!-- iReport connections -->
<iReportConnectionSet>
    <iReportConnection name="Empty datasource" connectionClass="com.jaspersoft.ireport.designer.connection.JREmptyDatasourceConnection">
        <connectionParameter name="records"><![CDATA[1]]></connectionParameter>
    </iReportConnection>
    <iReportConnection name="accessdb" connectionClass="com.jaspersoft.ireport.designer.connection.JDBCConnection">
        <connectionParameter name="Password"><![CDATA[]]></connectionParameter>
        <connectionParameter name="JDBCDriver"><![CDATA[com.ms.jdbc.odbc.JdbcOdbcDriver]]></connectionParameter>
        <connectionParameter name="ServerAddress"><![CDATA[C:\nwind\nwind.mdb]]></connectionParameter>
        <connectionParameter name="SavePassword"><![CDATA[false]]></connectionParameter>
        <connectionParameter name="Database"><![CDATA[nwind]]></connectionParameter>
        <connectionParameter name="Url"><![CDATA[jdbc:odbc:nwind]]></connectionParameter>
        <connectionParameter name="Username"><![CDATA[]]></connectionParameter>
    </iReportConnection>
</iReportConnectionSet>

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这是我一直得到的错误:

    Exception


Message:
    java.lang.ClassNotFoundException: com.ms.jdbc.odbc.JdbcOdbcDriver
Level:
    SEVERE
Stack Trace:
com.ms.jdbc.odbc.JdbcOdbcDriver
    com.jaspersoft.ireport.designer.connection.JDBCConnection.loadDriver(JDBCConnection.java:63)
    com.jaspersoft.ireport.designer.connection.JDBCConnection.getConnection(JDBCConnection.java:126)
    com.jaspersoft.ireport.designer.connection.JDBCConnection.test(JDBCConnection.java:447)
    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$4.actionPerformed(ConnectionDialog.java:290)
    javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
    javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169)
    javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
    javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
    javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
    java.awt.Component.processMouseEvent(Component.java:5488)
    javax.swing.JComponent.processMouseEvent(JComponent.java:3126)
    java.awt.Component.processEvent(Component.java:5253)
    java.awt.Container.processEvent(Container.java:1966)
    java.awt.Component.dispatchEventImpl(Component.java:3955)
    java.awt.Container.dispatchEventImpl(Container.java:2024)
    java.awt.Component.dispatchEvent(Component.java:3803)
    java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
    java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
    java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
    java.awt.Container.dispatchEventImpl(Container.java:2010)
    java.awt.Window.dispatchEventImpl(Window.java:1778)
    java.awt.Component.dispatchEvent(Component.java:3803)
    java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
    org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
    java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
    java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) …

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ms-access jasper-reports ireport

wat*_*atr

2010 08-10

5
推荐指数

1
解决办法

1万
查看次数

Golang Gin-Gonic拆分成多个文件

我希望将我的routes.go分成多个文件,以便每个组都在自己的包中.有人能指出一些代码的例子,有人用Gin做过这个吗？

即

package auth
...
auth = route.Group("/auth"){
    auth.GET(...
    auth.POST(...
}
...

package users
...
user = route.Group("/user"){
    user.GET(...
    user.POST(...
}
...

package main
import (
     "auth"
     "users"
)
...
router = gin.Default()
router.Register(auth.auth, users.user)
router.Run()
...

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package go go-gin

wat*_*atr

2017 03-24

5
推荐指数

2
解决办法

2725
查看次数