Solve the problem of using ant compilation in Eclipse: Warning: Non- able characters encoded in GBK

When using ant to compile a project, we often encounter the following information: "Warning: ing characters are not allowed to encode GBK." This is mainly because we are writing CodeSome Chinese comments are added, which causes problems during compilation. To solve this problem, you only need to add the encoding parameter to the place where javac is called in the build. xml file.
As follows:
<Javac
Encoding = "UTF-8"
Destdir = "$ {compile. dir }"
DEBUG = "on"
Source = "1.5"
>
<SRC Path = "$ {SRC. java. dir}"/>
<Patternset refID = "compile. Sources"/>
<Classpath>
<Path refID = "compile. dependencies"/>
</Classpath>
</Javac>