Spring Data 错误的列名答案

【问题标题】：Spring Data Wrong column nameSpring Data 错误的列名
【发布时间】：2020-04-05 17:40:58
【问题描述】：

我正在使用 Spring boot 2 和 Hibernate 5

我的控制台输出

2020-04-05 19:17:20.087  WARN 3908 --- [nio-8290-exec-1] o.a.c.util.SessionIdGeneratorBase        : Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [328] milliseconds.
Hibernate: 
    insert 
    into
        adv.t_address
        (created, created_at, state, updated, updated_at, additionalNumber, apartmentNumber, city, country, number, streetName) 
    values
        (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
2020-04-05 19:17:29.347  WARN 3908 --- [nio-8290-exec-1] o.h.engine.jdbc.spi.SqlExceptionHelper   : SQL Error: 0, SQLState: 42703
2020-04-05 19:17:29.347 ERROR 3908 --- [nio-8290-exec-1] o.h.engine.jdbc.spi.SqlExceptionHelper   : ERROR: column "additionalnumber" of relation "t_address" does not exist
  Position: 77
2020-04-05 19:17:29.378 ERROR 3908 --- [nio-8290-exec-1] 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.dao.InvalidDataAccessResourceUsageException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not execute statement] with root cause
org.postgresql.util.PSQLException: ERROR: column "additionalnumber" of relation "t_address" does not exist

我在实体模型中的专栏

@Column(length = 50, nullable = false)
private String additionalNumber;

我也在使用这个属性

spring.jpa.hibernate.naming.implicit-strategy=org.hibernate.boot.model.naming.ImplicitNamingStrategyJpaCompliantImpl
spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl

我的问题是：为什么我没有得到列“additionalNumber”而不是“additionalnumber”？

这是来自 DB 的日志似乎 DB 在返回时卡住了

2020-04-05 18:41:39.856 UTC [622] STATEMENT:  insert into adv.t_address (created, created_at, state, updated, updated_at, additionalNumber, apartmentNumber, city, country, number, streetName) values ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)
rentni_db  |    RETURNING *

【问题讨论】：

你的db表列和模型变量名匹配吗？
是的，模型和表格列与“additionalNumber”匹配，虽然我得到了这个异常，我不知道为什么
可以看到插入没问题，列名正确
您是否尝试过一个简单的查询，它只能插入或更新附加数字，而不是尝试一个巨大的。？只是为了确保这不是您查询的问题
好点我去试试

标签： hibernate spring-boot jpa spring-data-jpa spring-data

【解决方案1】：

PostgreSQL 遵循 SQL 的规则。这意味着所有表名和列名都将是小写的，如果它们没有被引用的话。

@Column(name = "ADDITIONALNUMBER", length = 50, nullable = false) private String additionalNumber;

也许这会有所帮助

【讨论】：