Question mark with diamond when read nvarchar from SQL Server

Question

I got a very strange problem here.

I need to read data from SQL Server (ver. 2016). A name like O'Neal .

When I load the String in my IDE/TextEditor, O'Neal could be read correctly as O'Neal .

But when I package my program as jar or war file, O'Neal is loaded like this O��Neal .

I have no idea how does this happend. Any suggestion would be appreciated. Thanks.

Answer 1

I got a very strange problem here.

I need to read data from SQL Server (ver. 2016). A name like O'Neal .

When I load the String in my IDE/TextEditor, O'Neal could be read correctly as O'Neal .

But when I package my program as jar or war file, O'Neal is loaded like this O Neal .

I have no idea how does this happend. Any suggestion would be appreciated. Thanks.

Answer 2

Refer to this question

Like @Arvind said, it runs correctly in IDE/Editor, because it's already encoded as UTF-8.

However, the jar or tomcat isn't, so we have to make sure it runs with encoding UTF-8.

1. In Windows 10 CMD, the jar file could run like this:

> java -Dfile.encoding="UTF-8" -jar test.jar

However this command couldn't run in PowerShell, I don't know why it's another issue.

2. If you want to run war file on tomcat server, in {pathToTomcat}/bin , open catalina.bat with editor.

add set "JAVA_OPTS=%JAVA_OPTS% -Djavax.servlet.request.encoding=UTF-8 -Dfile.encoding=UTF-8"