### The error may involve defaultParameterMap ### The error occurred while setting parameters

今天遇到一个错误，运行RankDao.selectById(id)直接给我报错，很不理解

错误信息：

2021-09-22 10:40:58.824 ERROR 8364 --- [nio-8888-exec-4] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException:
### Error querying database.  Cause: java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'rank WHERE id=1' at line 1
### The error may exist in com/brilliantZC/music/dao/MusicRankDao.java (best guess)
### The error may involve defaultParameterMap
### The error occurred while setting parameters
### SQL: SELECT id,song_list_id,consumer_id,score FROM rank WHERE id=?
### Cause: java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'rank WHERE id=1' at line 1
; bad SQL grammar []; nested exception is java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'rank WHERE id=1' at line 1] with root cause

一开始各种百度了各种方法，有说

创建的表中列的值小于实际值而报错
Controllor 层引入的 Service 接口上面忘记写 @Resource 或 @Autowired 注解
Controllor 层调用的方法是 private 私有的，导致分发失败
检查Mapper接口代码是否符合规范（用的Mybatis-plus自动忽略）

都试过一遍还是不行，于是我拿着错误的sql语句执行

SELECT id,song_list_id,consumer_id,score FROM rank WHERE id=1

依然报错

music> SELECT id,song_list_id,consumer_id,score FROM rank WHERE id=1
[2021-09-22 10:55:58] [42000][1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'rank WHERE id=1' at line 1

然后我就迷茫了，接着我把查询语句去掉依然报错

SELECT id,song_list_id,consumer_id,score FROM rank

接着百度，看到因为rank是关键字，不能直接当做非关键字用，需要加上``来使用。换上后可执行了

SELECT id,song_list_id,consumer_id,score FROM `rank`

然后我就修改了表名，错误解决！！！

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