Netbeans 7.3.1无法建立到jdbc:derby的连接

Question

最近我在用JavaEE做这个小项目，我需要使用derby数据库，但每次我去服务-

无法连接。无法建立到jdbc的连接：derby://localhost:1527//sample使用组织。阿帕奇。德比。jdbc。ClientDriver（java.netConnectException:在端口1527上连接到服务器本地主机时出错，消息为Connection拒绝：connect.）。

这个例外：

Wed Oct 29 15:05:26 EET 2014 : access denied ("java.net.SocketPermission" "localhost:1527" "listen,resolve")
java.security.AccessControlException: access denied ("java.net.SocketPermission" "localhost:1527" "listen,resolve")
    at java.security.AccessControlContext.checkPermission(AccessControlContext.java:457)
    at java.security.AccessController.checkPermission(AccessController.java:884)
    at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
    at java.lang.SecurityManager.checkListen(SecurityManager.java:1131)
    at java.net.ServerSocket.bind(ServerSocket.java:374)
    at java.net.ServerSocket.<init>(ServerSocket.java:237)
    at javax.net.DefaultServerSocketFactory.createServerSocket(ServerSocketFactory.java:231)
    at org.apache.derby.impl.drda.NetworkServerControlImpl.createServerSocket(Unknown Source)
    at org.apache.derby.impl.drda.NetworkServerControlImpl.access$000(Unknown Source)
    at org.apache.derby.impl.drda.NetworkServerControlImpl$1.run(Unknown Source)
    at java.security.AccessControWed Oct 29 15:05:26 EET 2014 : access denied ("java.net.SocketPermission" "localhost:1527" "listen,resolve")
java.security.AccessControlException: access denied ("java.net.SocketPermission" "localhost:1527" "listen,resolve")
    at java.security.AccessContrller.doPrivileged(Native Method)
    at org.apache.derby.impl.drda.NetworkServerControlImpl.blockingStart(Unknown Source)
    at org.apache.derby.impl.drda.NetworkServerControlImpl.executeWork(Unknown Source)
    at org.apache.derby.drda.NetworkServerControl.maiolContext.checkPermission(AccessControlContext.java:457)
    at java.security.AccessController.checkPermission(AccessController.java:884)
    at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
    at java.lang.SecurityManager.checkListen(SecurityManager.java:1131)
    at java.net.ServerSocket.bind(ServerSocket.java:374)
    at java.net.ServerSocket.<init>(ServerSocket.java:237)
    at javax.net.DefaultServerSocketFactory.createServerSocket(ServerSocketFactory.java:231)
    at org.apache.derby.impl.drda.NetworkServerControlImpl.createServerSocket(Unknown Source)
    at org.apache.derby.impl.drda.NetworkServerControlImpl.access$000(Unknown Source)
    at org.apache.derby.impl.drda.NetworkServerControlImpl$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.apache.derby.impl.drda.NetworkServerControlImpl.blockingStart(Unknown Source)
    at org.apache.derby.impl.drda.NetworkServerControlImpl.executeWork(Unknown Source)
    at org.apache.derby.drda.NetworkServerControl.main(Unknown Source)
n(Unknown Source)

有办法解决吗？

Answer 1

您需要在项目属性中添加起始页。打开项目属性。然后选择标签运行。然后将项目开始页添加到相对URL文本框中。我的是“/index.jsp”。

对不起，如果我在英语语法上有一些错误。

Answer 2

你已经试过这里的暗示了吗http://wiki.netbeans.org/JavaDB_grant_permissions

JDK 7u51附带了一些安全改进，这些改进导致在Java版本上启动JavaDB时出现问题。

当您尝试从NetBeans启动DB时，可能会出现以下异常：

 java.security.AccessControlException: access denied ("java.net.SocketPermission" "localhost:1527" "listen,resolve")

在开始使用script/db/bin/startNetworkServer时，将出现相同的异常

因为在NetBeans端没有合适的方法来修复它，而这应该在JavaDB端修复。

有几种方法可以解决这个问题。我只提最简单的方法。您必须从命令行手动启动DB。

使用-noSecurityManager参数启动JavaDB。

  <JDK 7u51 location>/db/bin/startNetworkServer -noSecurityManager