Eclipse Chinese Character Display

How to set the character set of the editor in eclipse to better support Chinese characters? How does one solve the ISO8859-1 character set in eclipse? Make sure that the character encoding of these two sentences is consistent:

<% @ Page contenttype = "text/html; charset = UTF-8" Language = "Java" %>
<% @ Page Language = "Java" Import = "Java. util. *, Hy. *" pageencoding = "UTF-8" %>

Utf-8 or GBK.
$ $ Questions about graduation design: how does one solve the ISO8859-1 character set in eclipse?

 

First problem:

When writing JSP, database operations are involved in it.
Save cocould not be completed
The reason is some characters cocould not be mapped using iso8859-1

<% @ Page Language = "Java" pageencoding = "GBK" %>
Set it to GBK or UTF-8, as long as it supports Chinese Ko

second problem:
when writing JSP pages or Java classes using eclipse, you can directly enter Chinese characters on the pages, when saving the error message "character cannot match ISO-8859-1", because the ISO-8859-1 is English encoding, can not recognize Chinese characters, I want to change it to UTF-8, but I couldn't find a place where I could change the encoding. First, I opened the property of the project. In "info", I saw "text file encoding" and changed it to UTF-8 in the world. However, an error message still appeared, after a long time, I was still confused about it. I went online to find out if I had encountered such a problem. Most of the answers to this question are in "edit" --- "set encoding" (as if this is a temporary encoding for a separate file ), however, I did not find it in eclipse (I used 3.2, but I don't know why). Later I found another explanation: Set the default encoding:
window --> preferences --> General --> editor --> text file encoding,
I still did not find perferences. I am dizzy ~~~~~~~~~,
check whether the encoding is set elsewhere.
I still cannot find ..........
back to perferences, I think the problem can be solved here. Haha, the problem is still here.
I found "general" -- "content types ",
there is a tree-like text on the right.
Expand and find "jsp". It was not found at first,
the guy is hiding at the lowest level ...........,
don't be careless,
there is a "default encoding" at the lowest,
the default is "ISO-8859-1",
finally found,
Delete "ISO-8859-1" and fill in "UTF-8",
click "Update",
OK. Save the file.
no error...