Javamail email garbled

1. garbled email title

The Garbled text of the mail title is well solved. You can use the mimeutility class to convert the email title. The Code is as follows:

 

Mailmessage. setsubject (mimeutility. encodetext (mailinfo. getsubject (), mimeutility. mimecharset ("gb2312"), null ));

The gb2312 can also be changed to UTF-8.

 

 

2. Garbled text in an English Windows email

No Garbled text is displayed on the mail body on my local machine, but Garbled text occurs when I put the program on an English Windows server. It was very strange. Later I found that there would be no garbled characters if I entered Chinese directly into the parameters, but there would be garbled characters if I read the HTML file through the file. The problem is to read the file. The code for reading the file is as follows:

Public void setcontentbypath (string encode, string path) throws unsupportedencodingexception {<br/> stringbuffer filecontent = new stringbuffer (); <br/> try {<br/> file F = new file (PATH); <br/> If (F. isfile () & F. exists () {<br/> inputstreamreader READ = new inputstreamreader (New fileinputstream (F), encode); <br/> bufferedreader reader = new bufferedreader (read ); <br/> string line; <br/> while (line = Reader. Readline ())! = NULL) {<br/> filecontent. append (line ). append (system. getproperty ("line. separator "); <br/>}< br/> Read. close (); <br/>}< br/>}catch (exception e) {<br/> E. printstacktrace (); <br/>}< br/> This. content = filecontent. tostring (); <br/>} 

I tested and found that if reading a file in a Chinese system, you must set encode to gb2312 and iso-8859-1 on an English Windows system. Otherwise, Chinese characters cannot be correctly read. I thought this solved the problem and the email body was garbled! Why? I thought it would also be caused by the UTF-8 encoding set in my email, and changed the UTF-8 to gb2312! UTF-8 is not omnipotent. In summary, gb2312 is used for reading files, and gb2312 is used for sending mails. Do not change to UTF-8.