1 UserAccessLogVO accessVO = null;
这个类设置为null 什么意思(把类缓存清掉)2writer = new PrintWriter(new OutputStreamWriter(stream, "UTF-8"));
OutputStreamWriter是一个方法OutputStreamWriter(OutputStream out, String charsetName)
有点费解
这个类设置为null 什么意思(把类缓存清掉)2writer = new PrintWriter(new OutputStreamWriter(stream, "UTF-8"));
OutputStreamWriter是一个方法OutputStreamWriter(OutputStream out, String charsetName)
有点费解
就像加了个管道
2. 看下装饰模式