从 uMongo 连接到 EC2

Connect from uMongo to EC2

我正在尝试使用 uMongo 远程连接到 Amazon EC2 服务器上的 MongoDB。

我在我的亚马逊服务器上打开了一个端口：

我在 uMongo 中添加了一个连接，设置如下：

所有其他字段都是空的。基本上，我只更改了 "Servers" 字段，其他所有字段都保持不变。

然后，当我尝试通过此连接进行连接时，出现以下异常：

java.lang.NumberFormatException: For input string: "//12.34.56.789" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:569) at java.lang.Integer.valueOf(Integer.java:766) at com.edgytech.umongo.MainMenu.connect(MainMenu.java:177) at com.edgytech.umongo.MainMenu.connect(MainMenu.java:118) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.edgytech.swingfast.ButtonBase.actionPerformed(ButtonBase.java:297) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.AbstractButton.doClick(AbstractButton.java:376) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877) at java.awt.Component.processMouseEvent(Component.java:6533) at javax.swing.JComponent.processMouseEvent(JComponent.java:3324) at java.awt.Component.processEvent(Component.java:6298) at java.awt.Container.processEvent(Container.java:2236) at java.awt.Component.dispatchEventImpl(Component.java:4889) at java.awt.Container.dispatchEventImpl(Container.java:2294) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466) at java.awt.Container.dispatchEventImpl(Container.java:2280) at java.awt.Window.dispatchEventImpl(Window.java:2746) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) at java.awt.EventQueue.access0(EventQueue.java:97) at java.awt.EventQueue.run(EventQueue.java:709) at java.awt.EventQueue.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue.run(EventQueue.java:731) at java.awt.EventQueue.run(EventQueue.java:729) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

我做错了什么？

当遇到java.lang.NumberFormatException时，表示不识别数字格式。即

`java.lang.NumberFormatException: For input string: "//12.34.56.789"

在这种情况下，服务器名称解析器会尽力处理 FQDN 和 IP 地址。在这种情况下，解析器会剥离 url 方案（http/https/ftp 等）并假定您输入 IP 地址。它调用尝试解析数字，但失败了，因为前缀“//”。

要解决此问题，请输入 IP 地址或不带 url 方案

的完全限定域名 (FQDN)

根据错误消息，您似乎通过在主机字符串中包含 'https' 来配置 'connection' 错误。尝试只使用“12.34.56.789:27017”，就像上面提到的另一张海报一样，首先检查您是否可以使用类似以下内容连接到 mongo 主机：

telnet 12.34.56.789 27017

如果您的 EC2 安全组设置错误，telnet 命令将无限期挂起，显示 'Trying 12.34.56.78...'

HTH