下面是控制臺打出的信息，可以看出mybatis明明知行了sql，參數也傳進去了，為什么就是查不出呢？2017-04-22 19:31:09,755 [http-bio-8080-exec-9] DEBUG [Message.queryMessagesList] - ooo Using Connection [com.mysql.jdbc.JDBC4Connection@51df5caf]2017-04-22 19:31:09,756 [http-bio-8080-exec-9] DEBUG [Message.queryMessagesList] - ==> ?Preparing: select id,command,description,content from message where 1=1 and COMMAND=??2017-04-22 19:31:09,756 [http-bio-8080-exec-9] DEBUG [Message.queryMessagesList] - ==> Parameters: 查看(String)