今天在测试程序的时候发现一个诡异的spring异常,此异常在IDE调试中不存在,但在测试环境中打包后即出现,错误日志如下
|
1 2 3 4 |
Caused by: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/tx] Offending resource: class path resource [applicationContext.xml] |
今天在发布线上版本的时候发现一个rmi的异常,开始一看以为是客户端配置出错,但检查配置后发现配置无异常.
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 |
org.springframework.beans.factory.support.DefaultListableBeanFactory[line:242]- Returning cached instance of singleton bean 'callbackService' org.springframework.remoting.rmi.RmiClientInterceptorUtils[line:182]- Remote service [rmi://10.77.7.49:9200/callbackService] threw exception java.rmi.ConnectException: Connection refused to host: 127.0.0.1; nested exception is: java.net.ConnectException: Connection refused at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:601) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:198) at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:110) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:178) at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132) at $Proxy24.invoke(Unknown Source) at org.springframework.remoting.rmi.RmiClientInterceptor.doInvoke(RmiClientInterceptor.java:398) at org.springframework.remoting.rmi.RmiClientInterceptor.doInvoke(RmiClientInterceptor.java:344) at org.springframework.remoting.rmi.RmiClientInterceptor.invoke(RmiClientInterceptor.java:259) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) at $Proxy23.process(Unknown Source) at java.lang.Thread.run(Thread.java:662) |
位置服务(LBS)解决的主要问题是当前位置周围某个范围内的人或场所.
在传统的解决方案,开发人员需要根据复杂的几何运算与大量的SQL语句进行查找,这无疑加大的开发人员的开发难度.
现在我们需要更为方便的解决方案,MongoDB为我们完美解决此类LBS问题.此篇文章也主要使用SpringData,将spring与MongoDB进行整合.
MongoDB目前支持二维的地图查询,查询区域包括圆形与矩形,距离单位包括MILES,KILOMETERS,NEUTRAL,下面的示例演示距离单位为NEUTRAL,而实际生产应用中则会用到MILES与KILOMETERS.
阅读全文…