zipfile java。木卫一。IOException:流已关闭ZipInputStream
下面是代码片段
FileInputStream fin = new FileInputStream(zipFile);
ZipInputStream zin = new ZipInputStream(fin);
ZipEntry entry = null;
String routerListUCM = "";
try {
entries:
while ((entry = zin.getNextEntry()) != null) {
if (entry.getName().startsWith("routes")) {
BufferedReader in = new BufferedReader(new InputStreamReader(zin, "UTF-8"));
if (true) {
//parse the xml of the route...
DOMParser dp = new DOMParser();
dp.parse(in);
Element e = (Element) dp.getDocument().getFirstChild();
String transferid = e.getElementsByTagName("transferId").item(0).getTextContent();
System.out.println("transferId=" + transferid);
int fileid = Integer.parseInt(transferid.split("-")[1]);
System.out.println("fileid=" + transferid);
String userList = e.getElementsByTagName("userList").item(0).getTextContent();
System.out.println("userList=" + userList);
String routeList = e.getElementsByTagName("routeList").item(0).getTextContent();
System.out.println("routeList=" + routeList);
routerListUCM = routeList;
if (routeList.toLowerCase().indexOf(myname().toLowerCase()) == -1) {
//my server is not in the current route...
//so skip this route table.
continue entries;
}
}
}
}
} catch (Exception e) {
System.err.println(e.getMessage());
e.printStackTrace();
}
在某些情况下,在“继续输入”之后在尝试下一个循环时,我看到“流关闭异常”:/
error:Stream closed
堆栈跟踪:
java.io.IOException: Stream closed
at java.util.zip.ZipInputStream.ensureOpen(ZipInputStream.java:67)
at java.util.zip.ZipInputStream.getNextEntry(ZipInputStream.java:116)
at org.parsisys.test.mina.view.SimpleFtplet$beaVersion0_1155.isTransferFinished(SimpleFtplet.java:299)
at org.parsisys.test.mina.view.SimpleFtplet.isTransferFinished(SimpleFtplet.java)
at org.parsisys.test.mina.view.SimpleFtplet.beaAccessisTransferFinished(SimpleFtplet.java)
at org.parsisys.test.mina.view.SimpleFtplet$beaVersion0_1155.onUploadEnd(SimpleFtplet.java:208)
at org.parsisys.test.mina.view.SimpleFtplet.onUploadEnd(SimpleFtplet.java)
at org.apache.ftpserver.ftplet.DefaultFtplet.afterCommand(DefaultFtplet.java:89)
at org.parsisys.test.mina.view.SimpleFtplet.afterCommand(SimpleFtplet.java)
at org.apache.ftpserver.ftpletcontainer.impl.DefaultFtpletContainer.afterCommand(DefaultFtpletContainer.java:144)
at org.apache.ftpserver.impl.DefaultFtpHandler.messageReceived(DefaultFtpHandler.java:220)
at org.apache.ftpserver.listener.nio.FtpHandlerAdapter.messageReceived(FtpHandlerAdapter.java:61)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
at org.apache.ftpserver.listener.nio.FtpLoggingFilter.messageReceived(FtpLoggingFilter.java:85)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:75)
at org.apache.mina.filter.logging.MdcInjectionFilter.filter(MdcInjectionFilter.java:136)
at org.apache.mina.filter.util.CommonEventFilter.messageReceived(CommonEventFilter.java:70)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:427)
at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:245)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:75)
at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63)
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTask(OrderedThreadPoolExecutor.java:780)
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTasks(OrderedThreadPoolExecutor.java:772)
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.run(OrderedThreadPoolExecutor.java:714)
at java.lang.Thread.run(Thread.java:748)
请帮帮我
# 1 楼答案
看起来最外层的
BufferedReader
对象关闭了嵌套流(尤其是ZipInputStream
)。尝试将BufferedReader初始化代码移到循环逻辑的更高位置此外,本主题可能会有所帮助:closing nested streams
更新: 好了,现在一切都清楚了。
DOMParser
类的实现代码清楚地表明parse
方法关闭了底层的InputStream
源代码(只是finally block的一个摘录):在这种情况下,可以做的是对传递给
DOMParser
对象的BufferedReader
进行黑客攻击。下面是一个例子:# 2 楼答案
我发现使用
org.apache.poi.util.CloseIgnoringInputStream
对我来说很有效。我能够将传递的ZipInputStream
打包到另一个方法中例如: