养蜂器服务在遥远的机器中运行,我们希望找到使用这种器具的用户数目,以及这一服务的记忆状况。 如何利用java来做到这一点。
Don t think there are native Java API s, but you can always connect over JDBC and fetch information from V$ views. V$SESSION is probably one you need to see connections, with memory it s a bit more complicated - check out documentation for V$PROCESS, V$PROCESS_MEMORY, V$SGA, V$SGAINFO, V$SGASTAT.
Hi have this j2ee web application developed using spring framework. I have a problem with rendering mnessages in nihongo characters from the properties file. I tried converting the file to ascii using ...
Check this, List<String> list = new ArrayList<String>(); for (int i = 0; i < 10000; i++) { String value = (""+UUID.randomUUID().getLeastSignificantBits()).substring(3, ...
I am in the middle of solving a problem where I think it s best suited for a decorator and a state pattern. The high level setting is something like a sandwich maker and dispenser, where I have a set ...
I have been trying to execute a MS SQL Server stored procedure via JDBC today and have been unsuccessful thus far. The stored procedure has 1 input and 1 output parameter. With every combination I ...
I have a system which contains multiple applications connected together using JMS and Spring Integration. Messages get sent along a chain of applications. [App A] -> [App B] -> [App C] We set a ...
If I m given two Java Libraries in Jar format, 1 having no bells and whistles, and the other having lots of them that will mostly go unused.... my question is: How will the larger, mostly unused ...
I have a Class variable that holds a certain type and I need to get a variable that holds the corresponding array class. The best I could come up with is this: Class arrayOfFooClass = java.lang....
I m working on a Java desktop application that reads and writes from/to different files. I think a better solution would be to replace the file system by a SQLite database. How hard is it to migrate ...
