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我正在尝试JUnit规则:ExternalResource并没有看到与@Before和@After的区别。ExternalResource vs @之前/ @
@Rule
public ExternalResource externalResource = new ExternalResource() {
@Override
protected void before() throws Throwable {
super.before();
LOG.info("before");
serverSocket = new ServerSocket(2004, 10);
socket = new Socket();
socket.connect(serverSocket.getLocalSocketAddress());
}
@Override
protected void after() {
super.after();
LOG.info("after");
try {
socket.close();
serverSocket.close();
} catch (IOException e) {
LOG.log(Level.SEVERE , "Error closing socket", e);
}
}
};
这段代码的secuence是:
1. before (ExternalResource)
2. before (@Before)
3. after (@After)
4. after (ExternalResource)
什么是使用ExternalResource的优势是什么?