对于JPA实现的hibernate实体的下划线无法转换问题

这个问题困扰了我很久，最后终于解决了，废话不多说。

User这个实体类里面有如下

 @ManyToOne(fetch = FetchType.LAZY)
	@JoinColumn(name = "accounts_id")
	public Accounts getAccounts() {
		return this.accounts;
	}

这时候如果 我在action里面调用了

User user = userService.getByProperties("accounts_id", account.getId());

就会报错

could not resolve property: accounts_id of: com.pwq.entity.User [select o from com.pwq.entity.User o where 1=1 and o.accounts_id=:accounts_id]

但是改成下面的就OK了

User user = userService.getByProperties("accounts.id", account.getId());

如果实体里面带下划线的字段是一个基本对象如Integer、String等，如

@Column(name = "test_id")
	public Integer getTestId() {
		return this.testId;
	}

因为和hibernate的映射机制有关的，所以把abc_def改成abcDef就可以了

List tb0 = testtablesr.criteriaEqeals("testId", 321);