java - Spring JPA 使用单引号内的参数编写 native 查询

Question

@Repository
public class PostgresRepository {

@PersistenceContext
EntityManager entityManager;

@Autowired
private JdbcTemplate jdbcTemplate;

public void updatePassword(PostgresDto postgresDto) {

    Query result = entityManager.createNativeQuery("ALTER ROLE :username PASSWORD :password ")
            .setParameter(1,postgresDto.getUsername())
            .setParameter(2,postgresDto.getPassword());
    int results = result.executeUpdate();

    }
}

我试图让 spring JPA 通过 native 查询更改 postgres 数据库的角色密码。设置 native 查询的参数时遇到问题。用于更改角色的 postgres 语句如下ALTER ROLE username PASSWORD 'password'。

错误:

org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139)
... 138 common frames omitted
 Caused by: org.postgresql.util.PSQLException: ERROR: syntax error at or near "$1" Position: 12 

Answer 1

查询中缺少关键字。应该是:

ALTER ROLE :username WITH PASSWORD :password