java.io.IOException: Attempted read on closed stream.

【自用】吉林大学计算机系统结构第二章:缓存优化 曲冠南老师版 笔记 容量8KB,2的十三次方,块大小16B,一块用掉四位,剩余2的九次方是标志位,则有512行,每个元素8B,则一块两个元素,a数组150块,b数组152块,不出现容量失效。不管是否交换内容,在同一“伪相联”组中的两块都是用同一个索引得到的,因此失效率相同,即:失效率伪相联=失效率2路。伪相联cache的命中时间等于直接映象cache的命中时间加上伪相联查找过程中的命中时间*该命中所需的额外开销。(6) 由编译器控制的预取,硬件预取的替代方法,在编译时加入预取的指令,在数据被用到之前发出预取请求。 阅读详情

java.io.IOException: Attempted read on closed stream.

尝试读取关闭流。

出现这种情况,一个原因可能是 把客户端与服务端的连接对象关闭了 或是 清空了。

ServiceClient sender = getSender();
            sender.setOptions(webTest.buildOptions("getCarsList"));
            
            OMElement result = sender.sendReceive(webTest.buildParam("getCarsList"));
           // sender.cleanupTransport();

            return result.toString();

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java.io.IOException: Attempted read from closed stream. 异常,解决

在HttpClient请求的时候,返回结果解析时出现java.io.IOException: Attempted read from closed stream. 异常,解决 原因是EntityUtils.toString(HttpEntity)方法被使用了多次。所以每个方法内只能使用一次。 ...

weixin_34007291的博客 2008
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