Using the JavaMail API to parse MIME details

so it can be encapsulated into a mailadaptor.jar.

 Mailadaptor Introduction Mailadaptor is an adapter that is responsible for message access, message resolution, and message generation MIME.
	  
  2# Mailadaptor core function Mailadaptor mainly includes: 
    
     The 
      
 
     
     
 
      
 
       
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mailinfo loadmailinfo (mailsetting mailsetting, Long CompanyID, String Emlfilepath); Boolean Savemailinfo (Long companyid, String fileservicedir,mailinfo mailinfo); 
 
     
 
    
    
 2.1# Loadmailinfo is primarily responsible for fetching the MIME file's data from the Fileservice and then parsing it, which is displayed by a particular Maildisplay control.
        The mailsetting parameter is to set the temporary storage directory of the attachment when parsing the message, the display address of the temporary embedded picture attachment, the download address of the temporary ordinary attachment, and the upload URL of the embedded attachment. The Mailsetting property is as follows:------------------------------------------------------------------------------------

   
   
 
    
    
 
     
 
      
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private String attachmentshowurl = ""; Private String Attachmentdownloadurl = ""; Private String Ckeditoruploadfileurl = ""; Private String Attachmenttempdir = ""; 
 
     
 
    
 
   
   
  ------------------------------------------------------------------------------------CompanyID parameter is the current user's company ID,EMLF
        
   The Ilepath parameter is the relative path of the mime file on the Fileservice, which is used to navigate to the absolute path of the mime file on the Fileservice.
        2.2# Savemailinfo is primarily responsible for generating MIME files and then storing them on the fileservice.
        The Mailinfo parameter is the custom entity that collects the message information and is the output of the Mailwrite control. The Mailinfo property is as follows:------------------------------------------------------------------------------------

   
   
 
    
    
 
     
 
      
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 private String from = "";
     Private String to = "";
     Private date Senddate = new Date ();
     Private String subject = "";
     Private String content = "";
     Private list<attachment> attachmentlist = new arraylist<attachment> (); Private Mailtype Mailtype; 
 
 
     
 
    

   
   
 The------------------------------------------------------------------------------------CompanyID parameter is the company ID of the current user.
The Fileservicedir parameter is the directory where the MIME file is specified on the Fileservice, and these two parameters are combined to specify the path of the MIME file to be stored on the fileservice.
The whole process Mailadaptor of 3# Mailadaptor is roughly divided into two parts, which is to parse the mime into the mail, and the message to generate MIME.   --------------------------------------------------------------------------------------GWT |  Mailadaptor |        Fileservice | |               Fetch MIME File |        |
|                 <---------------------| |               |
|               Maildisplay <-----------|               | | |-parsing MIME |                 |
|               |                 |
|               |                 |
|               | |
|               Mailinfo |
|               Mailwrite----------------> |                 |
|               |                 |
|               |   |
|   ---------------------------> | |               Save a file that generates MIME |                 |
|               |                 |
|               | |