Problems encountered during Web server (protein protection) Setup

1, StringBuffer The Append method has the error

Cause analysis: Is the default JRE system library for project and the configured JRE mismatch.

Workaround: Project Properties->add libray->jre System library->alternate JRE (select Sun JDK 1.6.0_13)

2, File Upload problem

Mysmartupload.setallowedfileslist ("txt"); Set upload file type can only be txt format

File upload Process

• jsp file:

   <div id= " input   " Align="  center   " Style="  width:900px;   " > <p>please  file  <input type= file   " Name="  uploadfile   " Id="  file   " > &nbsp;&NBSP;  </div> 

   

• servlet file:

  PrintWriter out=Response.getwriter (); String Wrongmessage= "Success!"; Smartupload Mysmartupload=Newsmartupload ();        Mysmartupload.initialize (config, request, response); Mysmartupload.setmaxfilesize (1024*2048); //mysmartupload.setallowedfileslist ("txt"); //Bebug        intj = 0; Try{mysmartupload.upload ();  for(inti = 0; I < Mysmartupload.getfiles (). GetCount (); i++)             {                ++J; Com.jspsmart.upload.File File=mysmartupload.getfiles (). GetFile (i); if(File.ismissing ())Continue; }        }Catch(Exception err) {wrongmessage= "Error in upload" + err.getmessage () + "File:" +j+ "on line 251"; //out.println ("Error in Upload" +err.getmessage ()); //Allright=false; //return;} out.print (Wrongmessage+ "num:" +j); }

  3, prompt error, serialversionuid conflict.

class class Serialversionuid = 8915824483106432775

Serialversionuid Detailed Description: http://www.cnblogs.com/guanghuiqq/archive/2012/07/18/2597036.html

Workaround:

If you don't want to define it, you can also turn it off in Eclipse settings as follows:

Window ==> Preferences ==> Java ==> Compiler ==> error/warnings ==>potential Programming problems

Change the warning of the serializable class without serialversionuid to ignore.

2014-09-20

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This article link address: Web server (protein protection) problems encountered during the construction process

Problems encountered during Web server (protein protection) Setup