我在Tomcat Server(v8(中部署了一个webApplication，它在Windows 2008 R2PC中运行服务。在这个webApplication中，用户使用表单上传文件(照片(。我想要的是将这些照片存储在网络中的NAS磁盘中(服务器和NAS磁盘都在同一网络下(。
我阅读并遵循了这个相关的答案。我首先尝试将照片保存在我的服务器C:的本地磁盘中，结果成功了！
public void saveFiles(List<Part> fileParts,String targetId) {
String pathRoot = "C:\Share\photos\;
String date = new SimpleDateFormat("yyyyMMddHHmmss").format(Calendar.getInstance().getTime());
try {
int counter = 1;
for (Part filePart : fileParts) {
String destPath = pathRoot + "\" + targetId;
Boolean flag = new File(destPath).mkdirs();
System.err.println("mkdirs flag = " + flag);
File file = new File(destPath, targetId + " " + date + "-" + counter + ".jpg");
try (InputStream input = filePart.getInputStream()) {
Files.copy(input, file.toPath());
}
counter++;
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
但是，如果我将位置路径更改为NAS磁盘
String pathRoot = "\\192.168.0.7\Share\photos\";
然后我得到以下错误：
java.nio.file.FileSystemException: \192.168.0.7Sharephotosmachines4 20180704110827-1.jpg: Logon failure: unknown user name or bad password.
at sun.nio.fs.WindowsException.translateToIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsFileSystemProvider.newByteChannel(Unknown Source)
at java.nio.file.spi.FileSystemProvider.newOutputStream(Unknown Source)
at java.nio.file.Files.newOutputStream(Unknown Source)
at java.nio.file.Files.copy(Unknown Source)
at com.yaylitizis.production.Actions.saveFiles(Actions.java:1797)
at com.yaylitizis.production.Actions.processRequest(Actions.java:510)
at com.yaylitizis.production.Actions.doPost(Actions.java:1893)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.yaylitizis.production.FilterUTF8.doFilter(FilterUTF8.java:27)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1526)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1482)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
为了避免上述错误，如何添加网络磁盘的凭据？
编辑1
我从Windows映射了网络磁盘，文件夹可以访问。但是，错误仍然存在。。
您可以通过两种方式实现这一点：
1( 由于网络驱动器中的"登录"是由windows完成的，请访问您的服务器(tomcat的安装和运行位置(，访问共享文件夹\192.168.0.7Sharephotos，当它要求提供凭据时，将其放入并在windows上使用复选框记住凭据保存。然后，您可以在控制面板上编辑或删除管理您的网络密码。点击此处查看更多信息
2( 您必须使用Java的外部库。这里有一个有用的答案
希望它能帮助
您可以使用Runtime.exec来执行net use \192.168.0.7Sharephotos your-password /user:your-domainyour-user-name /persistent:yes /savecred。只需要在Web应用程序初始化期间执行一次。