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public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String url = request.getParameter("url"); //得到要下载的资源的URL.
if (!StringUtils.isNullOrEmpty(url)) {
System.out.println(url);
URL u = new URL(url);
URLConnection conn = u.openConnection();
try { ///把响应头设置成一样的.
for (Map.Entry<String, List<String>> m : conn.getHeaderFields()
.entrySet()) {
if (m != null && m.getKey() != null && m.getValue() != null
&& m.getValue().size() > 0) {
response.setHeader(m.getKey(), m.getValue().get(0));
}
}
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
CommonLog.log.warn(e);
}
InputStream in = conn.getInputStream(); //从 connection得到inputstream
OutputStream out = response.getOutputStream(); //得到向客户端的输出流
try {
IOUtils
.write(conn.getInputStream(), response
.getOutputStream()); //写数据.
} catch (Exception e) {
e.printStackTrace();
// TODO: handle exception
CommonLog.log.warn(e);
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
}
}
}
/**
* 从input里面读取数据然后写入output,读完后自动关闭流。
* @param input inputStream
* @param output outputStream
* */
public static void write(InputStream input, OutputStream output)
throws IOException {
write(input,output,true);
}
/**
* 自动从inputstream里面读数据,然后写到outputstream里面去。
* @param input inputstream
* @param output outputstream
* @param close 读完后是否自动关闭流。
* */
public static void write(InputStream input, OutputStream output,boolean close)
throws IOException {
byte[] b = new byte[1024];
int len = input.read(b);
while (len != -1) {
output.write(b, 0, len);
len = input.read(b);
}
output.flush();
if (close) {
input.close();
output.close();
}
}
output.write(b, 0, len);//执行这行代码的时候.
ClientAbortException: java.net.SocketException: Connection reset by peer: socket write error
at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:366)
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:432)
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:347)
at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:392)
at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:381)
at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:89)
at com.joejoe.utils.IOUtils.write(IOUtils.java:62)
at com.joejoe.utils.IOUtils.write(IOUtils.java:48)
at com.tqsoft.wdys.other.getMegavideo.doGet(getMegavideo.java:79)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at com.joejoe.utils.web.CharSetFilter.doFilter(CharSetFilter.java:39)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.SocketException: Connection reset by peer: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:750)
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:432)
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:347)
at org.apache.coyote.http11.InternalOutputBuffer$OutputStreamOutputBuffer.doWrite(InternalOutputBuffer.java:773)
at org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:118)
at org.apache.coyote.http11.InternalOutputBuffer.doWrite(InternalOutputBuffer.java:583)
at org.apache.coyote.Response.doWrite(Response.java:560)
at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:361)
... 27 more