Java. Io. charconversionexception: Not an ISO 8859-1 character:

The initial code is as follows:

Httpservletresponse resp = NULL;

Out = resp. getoutputstream ();

Out. print ("<script language = 'javascript '> alert \ u5458 \ u5bfc \ u5165 \ u3002 '); window. close (); </SCRIPT> ");

The solution code is as follows:

Resp. setcontenttype ("text/html; charset = UTF-8 ");
Resp. getwriter (). Print (
"<Script language = 'javascript '> alert (' \ u8bfe \ u7a0b \ u6570 \ u636e \ u672a \ signature \ uff0c \ signature \ u8054 \ u7cfb \ u7ba1 \ u7406 \ u5458 \ u5bfc \ u5165 \ u3002 '); window. close (); </SCRIPT> "); // replace it with this one.
Resp. getwriter (). Close ();

Cause: it is estimated that stream outputs binary streams that do not encode characters. Stream only applies to ISO 8859-1 encoded characters, and writer outputs text information, is encoded by the system. Guess.