JDBC模板使用“like”为Query提供错误

Question

我在下面的查询中没有得到如何使用％？％。这给了我错误：

PreparedStatementCallback;未分类的SQL的SQLException [select * from name其中name为'％？％']

问题：

String sql = "select * from names where name like ?";
List<NamesModel> names = jdbcTemplate.query(sql, new Object[]{searchName}, new NamesRowMapper());

Answer 1

您的异常告诉您无法绑定到引用值。以下不起作用：

String sql = "select * from names where name like '%?%'";
List<NamesModel> names = jdbcTemplate.query(sql, 
        new Object[]{ searchName }, new NamesRowMapper());

正确的方法是在%参数值周围添加searchName：

String sql = "select * from names where name like ?";
List<NamesModel> names = jdbcTemplate.query(sql, 
        new Object[]{ "%" + searchName + "%"}, new NamesRowMapper());