mybatis查询不到数据，而直接执行SQL可以执行？

Question

如题，结果如下：

程序查询的输出：

DEBUG queryCompany:145 - ==>  Preparing: SELECT b.id, b.name, b.average, COUNT(*) as times FROM (SELECT id, name, average from baseinfo WHERE id = ? or name LIKE ? ORDER BY average DESC LIMIT ?, ?) as b LEFT JOIN detailinfo AS d ON (b.id = d.id) GROUP BY b.id 
DEBUG queryCompany:145 - ==> Parameters: 江(String), %江%(String), 0(Integer), 6(Integer)
DEBUG queryCompany:145 - <==      Total: 0

然后我把这个sql语句直接放到数据库里查询，结果如下：

MariaDB [stock]> SELECT b.id, b.name, b.average, COUNT(*) as times FROM
    ->   (SELECT id, name, average
    ->    from baseinfo WHERE id = "江" or name LIKE "%江%"
    ->    ORDER BY average DESC LIMIT 0, 6) as b
    ->   LEFT JOIN detailinfo AS d ON (b.id = d.id)
    -> GROUP BY b.id;
+--------+--------------+------------+-------+
| id     | name         | average    | times |
+--------+--------------+------------+-------+
| 600418 | 江淮汽车     | 0.99999999 |     8 |
| 601313 | 江南嘉捷     | 0.16716038 |    10 |
+--------+--------------+------------+-------+
2 rows in set (0.00 sec)

之前都还能正常查询的，求问这是怎么回事

---

数据库挂掉了，还没恢复，所以没法测试是不是各位提的问题。。恢复后我会第一时间测试的

Answer 1

Mybatis的配置问题吧，我猜可能是#号和$的问题，不知道你的配置是不是这么写的

SELECT b.id, b.name, b.average, COUNT(*) as times FROM (SELECT id, name, average from baseinfo WHERE id = #{id} or name LIKE #{name} ORDER BY average DESC LIMIT #{}, #{}) as b LEFT JOIN detailinfo AS d ON (b.id = d.id) GROUP BY b.id

Answer 2

可能是传参中#对于传参自动加了”“，如果传参还有其他引号或符号就会导致问题

Answer 3

简单，中文乱码的问题

Answer 4

连接数据库地址后面加上?autoReconnect=true&useUnicode=true&characterEncoding=utf8

Answer 5

应该是是mybatis的配置问题，差不多是出现在like附近，可以这么搞：like CONCAT('%',#{XXX},'%')

Answer 6

你数据库层面是不是用了cobar或者TDDL   分库分表的中间件啊？？

Answer 7

我猜也是编码问题

Answer 8

http://blog.csdn.net/michaelj...
参考这个链接或许会给你带来灵感