String value=null;
try { 
value= URLEncoder.encode(jsonObjectPar.getString(“value”), “UTF-8”); 
} catch (UnsupportedEncodingException e) { 
e.printStackTrace(); 
} 

String value=null; 
try { 
value= new String(value.getBytes(“iso-8859-1”),”UTF-8”); 
} catch (UnsupportedEncodingException e) { 
e.printStackTrace(); 
} 

show variables like ‘character%'; 
+————————–+—————————-+ 
| Variable_name | Value | 
+————————–+—————————-+ 
| character_set_client | latin1 | 
| character_set_connection | latin1 | 
| character_set_database | latin1 | 
| character_set_filesystem | binary | 
| character_set_results | latin1 | 
| character_set_server | latin1 | 
| character_set_system | utf8 | 
| character_sets_dir | /usr/share/mysql/charsets/ | 
+————————–+—————————-+ 

String name = request.getParameter(“ABC”); 
if(name.equals(new String(request.getParameter(“ABC”).getBytes(“iso8859-1”), “iso8859-1”))) { 
name = new String(name.getBytes(“iso8859-1”),”UTF-8”); 
}