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B.sucharitha
IllegalStateException for file opening
1 Answer(s) a year and 9 months ago
Posted in : Java Beginners
1 Answer(s) a year and 9 months ago
Posted in : Java Beginners
<%@page import="javax.servlet.*, javax.servlet.http.*,java.io.*,java.util.*,com.kit.log.*,com.kit.db.util.*"%>
<%@include file="sessioncheck.jsp"%>
<%
System.out.println("downloadcallrecoeding jsp start....................................");
String strfileName = request.getParameter("filename");
String strfilePath = System.getProperty("callrecordingfilespath");
String strabsoluteFileName = strfilePath + strfileName + ".mp3";
String strtempfileName = request.getParameter("filename") + ".mp3";
try{
strtempfileName = strtempfileName.substring(6, strtempfileName.length());
}catch(Exception e){
}
File requiredFile = new File(strabsoluteFileName);
if ( requiredFile.exists()) {
response.setHeader("Content-Type", "audio/mpeg; filename=" + strabsoluteFileName);
response.setHeader("Content-Disposition", "attachment; filename=" + strtempfileName);
response.setHeader("Content-Length", "" + requiredFile.length());
try {
OutputStream os = response.getOutputStream();
FileInputStream fis = new FileInputStream(requiredFile);
int ch;
while ( ( ch = fis.read() ) != -1 ) {
os.write(ch);
os.flush();
}
fis.close();
} catch ( Exception e ) {
}
} else {
%>
<script>
alert( "This file does not exist." );
window.history.back();
</script>
<%
}
System.out.println("downloadcallrecoeding jsp end.......................................");
%>
**Error:**
______
java.lang.IllegalStateException: getOutputStream() has already been called for this response
at org.apache.catalina.connector.Response.getWriter(Response.java:599)
at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:195)
at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:124)
at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:117)
at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:191)
at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:115)
at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:75)
at org.apache.jsp.AdminSaaS.downloadcallrecording_jsp._jspService(downloadcallrecording_jsp.java:121)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:495)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
View Answers
August 25, 2011 at 5:35 PM
We are providing you the code in jsp.
1)viewFiles.jsp:
<%@ page import="java.io.*"%>
<html>
<table>
<tr><th>File Name</th><th>View File</th></tr>
<%
File f = new File("C:/UploadedFiles");
File[] files = f.listFiles();
for(int i=0;i<files.length;i++){
String name=files[i].getName();
String path=files[i].getPath();
%>
<tr><td><%=name%></td><td><a href="download.jsp?f=<%=path%>">View</a></td></tr>
<%
}
%>
</table>
</html>
2)download.jsp:
<%@page import="java.io.*"%>
<%
String ff=request.getParameter("f");
File f = new File(ff);
String filename=f.getName();
response.setContentType("application/zip");
response.setHeader("Content-Disposition", "attachment; filename=\""+filename+"\"");
String name = f.getName().substring(f.getName().lastIndexOf("/") + 1,f.getName().length());
InputStream in = new FileInputStream(f);
ServletOutputStream outs = response.getOutputStream();
int bit = 256;
int i = 0;
try{
while((bit) >= 0){
bit = in.read();
outs.write(bit);
}
} catch (IOException ioe) {
ioe.printStackTrace(System.out);
}
outs.flush();
outs.close();
in.close();
%>
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