mybatis 中文做参数报错

Posted 2020-09-18 Flink菜鸟

　　一个简单的查询，如果参数中有中文。如下：

<select id="xxxx" resultType="hashmap">
    select * from talbe_a a where  a.kpeople = ${name}
</select>

报错：

org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: java.sql.SQLSyntaxErrorException: ORA-00904: "萧亚轩": 标识符无效
...

Caused by: java.sql.SQLSyntaxErrorException: ORA-00904: "萧亚轩": 标识符无效
....

mybatis sql日志：

18:06:36,192 DEBUG JdbcTransaction:47 - Openning JDBC Connection
18:06:36,830 DEBUG PooledDataSource:47 - Created connection 1459361227.
18:06:36,843 DEBUG queryrealactormediatop:47 - ooo Using Connection [[email protected]]
18:06:36,843 DEBUG queryrealactormediatop:47 - ==>  Preparing: select * from table_a a where v1.kpeople = 萧亚轩 
18:06:36,961 DEBUG queryrealactormediatop:47 - ==> Parameters: 

注意：“萧亚轩”两边没有单引号，不是“？”的占位符，参数列表里面是没有值。

修改其实很简单：

v1：换$ 为#

<select id="xxxx" resultType="hashmap">
    select * from talbe_a a where  a.kpeople = #{name}
</select>

v2：添加 ‘’ 单引号

<select id="xxxx" resultType="hashmap">
    select * from talbe_a a where  a.kpeople = ‘${name}‘
</select>

 

#只会当成个字符串

$就不一定是字符串，或者其他类型