java.sql.SQLException: Io 异常: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=153092352)(ERR=12500)(ERROR_STACK=(ERROR=(CODE=12500)(EMFI=4))(ERROR=(CODE=12560)(EMFI=4))(ERROR=(CODE=530)(EMFI=4))(ERROR=(BUF='32-bit Windows Error: 2: No such file or directory'))))
oracle.jdbc.dbaccess.DBErr ......
现在项目中出现一个问题,我们项目中有一个外部系统是通过socket接口通讯的,而且接口是异步的,就是说一个线程负责把消息发送到外部系统中,一个线程用来取,两个线程公用同一个socket,采用长连接的方式
发送线程通过socket.getOutputStream().write(byte[] data)来发送的。
接受线程线程通过socket.getInputStream().r ......
java.sql.SQLException: Io 异常: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=153092352)(ERR=12500)(ERROR_STACK=(ERROR=(CODE=12500)(EMFI=4))(ERROR=(CODE=12560)(EMFI=4))(ERROR=(CODE=530)(EMFI=4))(ERROR=(BUF='32-bit Windows Error: 2: No such file or directory'))))
oracle.jdbc.dbaccess.DBErr ......
我对IO流不太熟,将一个120兆的文件从D盘复制到E盘,多了10兆出来了。
Java code:
static public void main(String[] args){
try {
InputStream input = new FileInputStream("d:/eclipse.zip");
OutputStream output = new FileOutputStream("e:/eclipse.zip&qu ......
6.6.2 Details on protected Access
A protected member or constructor of an object may be accessed from outside
the package in which it is declared only by code that is responsible for the implementation
of that object.
6.6.2.1 Access to a protected Member
Let C be the class in which a ......
Runtime.getRuntime().exec("mv -f /home/aaa/'oldName bb.txt' /home/aaa/newName.txt");
现在 aaa 目录下,有"oldName bb.txt", 文件名中间包含空格在操作时,文件名前后要加上 ''
在liunx 中操作可以
在java 中调用时,要怎么将这个 ......