手动调用Spring Annotation Validation [英] Manually call Spring Annotation Validation

问题描述

我使用Hibernate和Spring Annotations进行了很多验证，如下所示：

  public class Account {
 @NotEmpty（groups = {Step1.class，Step2.class}）
私人字符串名称; 
 
 @NotNull（groups = {Step2.class}）
 private long accountNumber; 
 
 public interface Step1 {} 
 public interface Step2 {} 
} 
  

然后在控制器中调用参数：

  public String saveAccount（@ModelAttribute @Validated（ {Account.Step1.class}）帐户帐户，BindingResult结果）{
 //一些更多的代码和东西在这里
 return; 
} 
  

但是我想根据控制器中的某些逻辑来决定使用的组方法。有没有办法手动调用验证？类似于 result = account.validate（Account.Step1.class）？

我知道创建自己的Validator类，但这是我想避免的，我宁愿只在类变量本身使用注释。

在他的回答中比 Jaiwo99 更进一步：

  // org.springframework.validation.SmartValidator - 由
 // LocalValidatorFactoryBean实现，这很有趣，因为它本身不是FactoryBean（只是说）
 @Autowired 
 SmartValidator验证器; 
 
 public String saveAccount（@ModelAttribute账户，BindingResult结果）{
 // ...定制逻辑
 validator.validate（account，result，Account.Step1.class） ; 
 if（result.hasErrors（））{
 // ...绑定或验证错误
} else {
 // ...无错误
 } 
 return; 
} 
  

而 SmartValidator JavaDoc的强制性链接，如果您有兴趣的话。

I'm doing a lot of our validation with Hibernate and Spring Annotations like so:

public class Account {
    @NotEmpty(groups = {Step1.class, Step2.class})
    private String name;

    @NotNull(groups = {Step2.class})
    private Long accountNumber;

    public interface Step1{}
    public interface Step2{}
}

And then in the controller it's called in the arguments:

public String saveAccount(@ModelAttribute @Validated({Account.Step1.class}) Account account, BindingResult result) {
   //some more code and stuff here
   return "";
}

But I would like to decide the group used based on some logic in the controller method. Is there a way to call validation manually? Something like result = account.validate(Account.Step1.class)?

I am aware of creating your own Validator class, but that's something I want to avoid, I would prefer to just use the annotations on the class variables themselves.

解决方案

Going a step further than Jaiwo99 in his answer:

// org.springframework.validation.SmartValidator - implemented by
//     LocalValidatorFactoryBean, which is funny as it is not a FactoryBean per se (just saying)
@Autowired
SmartValidator validator;

public String saveAccount(@ModelAttribute Account account, BindingResult result) {
    // ... custom logic
    validator.validate(account, result, Account.Step1.class);
    if (result.hasErrors()) {
        // ... on binding or validation errors
    } else {
        // ... on no errors
    }
    return "";
}

And the mandatory link to SmartValidator JavaDoc if you are interested.

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