这是我的JSP页面我上传后收到Exception并点击提交按钮
现在我应该如何处理JSP页面中的Exception。
java.io.IOException：在第41行处理JSP页面/upload.jsp时发生异常
<%@page import="com.oreilly.servlet.*,java.sql.*,databaseconnection.*,java.util.*,java.io.*,javax.servlet.*, javax.servlet.http.*"%>
<%
String h1=null;
String saveFile="";
String contentType = request.getContentType();
if((contentType != null)&&(contentType.indexOf("multipart/form-data") >= 0)){
DataInputStream in = new DataInputStream(request.getInputStream());
int formDataLength = request.getContentLength();
byte dataBytes[] = new byte[formDataLength];
int byteRead = 0;
int totalBytesRead = 0;
while(totalBytesRead < formDataLength){
byteRead = in.read(dataBytes, totalBytesRead,formDataLength);
totalBytesRead += byteRead;
}
int ch;
StringBuffer strContent = new StringBuffer("");
FileInputStream fin = null;
String file = new String(dataBytes);
saveFile = file.substring(file.indexOf("filename=\"") + 10);
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
int pos;
pos = file.indexOf("filename=\"");
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
int boundaryLocation = file.indexOf(boundary, pos) - 4;
int startPos = ((file.substring(0, pos)).getBytes()).length;
int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;
File ff = new File(saveFile);
FileOutputStream fileOut = new FileOutputStream(ff);
fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();
fin = new FileInputStream(ff);
while ((ch = fin.read()) != -1)
strContent.append((char) ch);
fin.close();
String ss=(strContent.toString());
//StringBuffer s=new StringBuffer(ss);
String date=(String)session.getAttribute("date");
String keypoints=(String)session.getAttribute("keypoints");
/*
String[] strArray =null;
strArray=keypoints.split(",");
for (String str : strArray) {
// String a="<a href>"+str+" </a>";
//String b="(?i)"+str;
h=ss.replaceAll(str,"<a href>"+str+" </a>");
}
*/
String text=ss;
String result[]=text.split("\\s");
String[] strArray =keypoints.split(",");
for(int i=0;i<strArray.length;i++)
{
for(int p=0;p<result.length;p++)
{
if(strArray[i].equals(result[p])){
StringBuffer sb1=new StringBuffer();
sb1.append("<a href=\"search.jsp?search="+strArray[i]+"\">"+strArray[i]+"</a>");
result[p]=sb1.toString();
}
}
}
StringBuffer sb=new StringBuffer();
for(int i=0;i<result.length;i++){
sb.append(result[i]);
sb.append(" ");
}
String ans=new String(sb);
session.setAttribute("ans",ans);
out.println(ans);
String id=(String)session.getAttribute("id");
String filename=(String)session.getAttribute("filename");
//int n;
//session.getAttribute("userid", n );
String filesize=null;
String jj="no";
FileInputStream fis;
PreparedStatement psmt1=null;
try
{
Connection con = databasecon.getconnection();
psmt1=con.prepareStatement("insert into file(id,filename,date,file,ff,keypoints) values(?,?,?,?,?,?)");
//File f = new File(h);
psmt1.setString(1,id);
psmt1.setString(2,filename);
psmt1.setString(3,date);
//fis = new FileInputStream(f);
psmt1.setString(4,ans);
//double bytes = file.length();
//filesize=Double.toString(bytes);
psmt1.setString(5,jj);
//sout.println(filesize);
psmt1.setString(6,keypoints);
psmt1.executeUpdate();
response.sendRedirect("suc.jsp?success");
}
catch(Exception ex)
{
out.println("Error in connection : "+ex);
}
}
%>
这是例外： =========================
java.io.IOException: An exception occurred processing JSP page /upload.jsp at line 41
38: int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;
39: System.out.println(saveFile);
40: File ff = new File(saveFile);
41: FileOutputStream fileOut = new FileOutputStream(ff);
42:
43: fileOut.write(dataBytes, startPos, (endPos - startPos));
44:
Stacktrace:
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:466)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
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 org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
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:217)
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$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2503)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2492)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.FileNotFoundException: springframework-license.txt (Access is denied)
at java.io.FileOutputStream.open0(Native Method)
at java.io.FileOutputStream.open(FileOutputStream.java:270)
at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
at java.io.FileOutputStream.<init>(FileOutputStream.java:162)
at org.apache.jsp.upload_jsp._jspService(upload_jsp.java:163)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)
... 27 more
答案 0 :(得分：0)
您的堆栈跟踪说
＆＃34;引起：java.io.FileNotFoundException：springframework-license.txt （访问被拒绝）＆＃34;
显然，对于用户tomcat（或您的应用程序）正在运行的文件springframework-license.txt本身或目录的访问被拒绝。
检查您的路径和文件访问权限。