我正在开发一个Web应用程序，该应用程序接受来自第三方的json数据，处理该数据并以处理后的json数据进行响应。
我在生产服务器上收到java.net.SocketTimeoutException：null，无法在本地计算机上重现。下面是堆栈跟踪：
java.net.SocketTimeoutException: null
at org.apache.tomcat.util.net.NioBlockingSelector.read(NioBlockingSelector.java:191)
at org.apache.tomcat.util.net.NioSelectorPool.read(NioSelectorPool.java:246)
at org.apache.tomcat.util.net.NioSelectorPool.read(NioSelectorPool.java:227)
at org.apache.coyote.http11.InternalNioInputBuffer.readSocket(InternalNioInputBuffer.java:422)
at org.apache.coyote.http11.InternalNioInputBuffer.fill(InternalNioInputBuffer.java:794)
at org.apache.coyote.http11.InternalNioInputBuffer$SocketInputBuffer.doRead(InternalNioInputBuffer.java:819)
at org.apache.coyote.http11.filters.IdentityInputFilter.doRead(IdentityInputFilter.java:124)
at org.apache.coyote.http11.AbstractInputBuffer.doRead(AbstractInputBuffer.java:346)
at org.apache.coyote.Request.doRead(Request.java:422)
at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:290)
at org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:449)
at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:315)
at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:200)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177)
at java.io.InputStreamReader.read(InputStreamReader.java:184)
at java.io.BufferedReader.fill(BufferedReader.java:154)
at java.io.BufferedReader.read1(BufferedReader.java:205)
at java.io.BufferedReader.read(BufferedReader.java:279)
at java.io.Reader.read(Reader.java:140)
引发此异常的代码段（尤其是“ while”条件）：
public static String getPostData(HttpServletRequest request) throws
IOException {
StringBuilder stringBuilder = new StringBuilder();
BufferedReader bufferedReader = null;
try {
InputStream inputStream = request.getInputStream();
if (inputStream != null) {
bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
char[] charBuffer = new char[128];
int bytesRead = -1;
while ((bytesRead = bufferedReader.read(charBuffer)) > 0) {
stringBuilder.append(charBuffer, 0, bytesRead);
}
} else {
stringBuilder.append("");
}
} finally {
if (bufferedReader != null) {
bufferedReader.close();
}
}
return stringBuilder.toString();
}
此应用程序部署在具有相同服务器配置的3个不同的AWS区域中，令人惊讶的是，只有一个区域引发此异常，并且该异常也仅用于很少的随机请求。
任何帮助表示赞赏。提前致谢！
最佳答案
为了重现套接字超时异常，您必须让客户端开始下载，然后暂停下载一段时间。您可以通过实现
安装可以模拟不同网络情况（带宽，延迟等）的操作系统工具
编写自己的测试客户端（请参见https://examples.javacodegeeks.com/core-java/net/sockettimeoutexception/java-net-sockettimeoutexception-how-to-solve-sockettimeoutexception/）