291 public synchronized Connection getConnection(long timeout) {
292 long startTime = new Date().getTime();
293 Connection con;
294 while ((con = getConnection()) == null) { 295 try {
296 wait(timeout); 297 }
298 catch (InterruptedException e) {}
299 if ((new Date().getTime() - startTime) >= timeout) {
300 // wait()返回的原因是超时
301 return null; 302 } 303 }
304 return con; 305 } 306 307 /**
308 * 关闭所有连接 309 */
310 public synchronized void release() {
311 Enumeration allConnections = freeConnections.elements();
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