的Java無法插入UTF-8西里爾字符串到MySQL

Question

Properties properties= new Properties(); 
properties.setProperty("user", login); 
properties.setProperty("password", password); 
properties.setProperty("useUnicode","true"); 
properties.setProperty("characterEncoding","UTF-8"); 
conn = DriverManager.getConnection("jdbc:mysql://" + host + "/" + db, properties); 

String message = "Раунд " + nextRoomId; 

Data.db.executeUpdate("INSERT INTO chat(message) VALUES('" + message + "')"); 

我得到這個：

Раунд 338 

MySQL的配置：

+--------------------------+----------------------------+ 
| Variable_name   | Value      | 
+--------------------------+----------------------------+ 
| character_set_client  | utf8      | 
| character_set_connection | utf8      | 
| character_set_database | utf8      | 
| character_set_filesystem | binary      | 
| character_set_results | utf8      | 
| character_set_server  | utf8      | 
| character_set_system  | utf8      | 
| character_sets_dir  | /usr/share/mysql/charsets/ | 
+--------------------------+----------------------------+ 

表和數據庫完全UTF-8編碼，我不能從java中插入西里爾字符串，因爲我的表中編碼不好的字符串

我做錯了什麼？

Answer 1

執行編輯器（IDE）和javac編譯器使用相同的編碼？ javac選項是-encoding UTF-8。否則，字符串文字會出現錯誤的轉換。你可以試試"\u0420\u0430\u0443\u043D\u0434"。如果可行，那麼在.java的編碼中存在一個問題。

Answer 2

試圖改變你的代碼：

Properties properties= new Properties(); 
properties.setProperty("user", login); 
properties.setProperty("password", password); 
properties.setProperty("useUnicode","true"); 
properties.setProperty("characterEncoding","UTF-8"); 
conn = DriverManager.getConnection("jdbc:mysql://" + host + "/" + db, properties); 

String message = "Раунд " + nextRoomId; 
String encMessage = new String(message.getBytes(), "UTF-8"); 

Data.db.executeUpdate("INSERT INTO chat(message) VALUES('" + encMessage + "')");