mule - Anypoint Studio 中的自定义 Json 验证

Question

我正在尝试使用 json 模式验证器来验证 JSon。但它返回一条通用消息。“Json 内容不符合架构”。我有一个 HTTP POST REQUEST，它发送如下有效负载:

{ "key1" : "value1", "key2" : "value2" ,"key3": "value3" }

如果 key1 和 key2 丢失。我希望它给出如下错误消息:

{{
  errorCode :1001,
  errorMessage : key1 is missing",
},
  errorCode :1002,
  errorMessage : key2 is missing"
}
}

我尝试将错误写入文件(包含所有警告和消息的 json 文件}看起来像这样:

{
  "level" : "error",
  "domain" : "validation",
  "keyword" : "required",
  "message" : "object has missing required properties ([\"key1\",\"key2\",\"key3\"])",
  "required" : [ "key1", "key2", "key3"],
  "missing" : [ "key1", "key2"]
}

这只是该文件的一小部分。我必须循环遍历该文件才能获取此信息。有没有其他方法，我可以执行自定义验证并向用户返回正确的错误消息。

编辑1:

我创建了以下 RequestObj 类:

公共(public)类RequestObj {

@Valid
@NotBlank
@NotNull
private String key1;

@Valid
@NotBlank
private String key2;

@Valid
@NotBlank
private String key3;

@Override
public String toString() {
    return "RequestObj [key1=" + key1 + ", key2=" + key2 + ", key3=" + key3 + "]";
}

它不会验证 key1 是否为空。

postman 请求:

POST/验证 HTTP/1.1主机:本地主机:8081内容类型:application/json

{ “key2”:“gg”， “键3”:“嗯”}

编辑2:

当我实现验证器接口(interface)时。我无法访问骡子事件。在这种情况下，我将如何访问需要验证的 json？

Answer 1

这是我对 json 输入执行自定义验证后的结果。我使用 JSR-303 注释来验证数据。

class Example{ 
   @NotBlank
        @Size(min = 3, max = 5)
        private String key1;

        @Pattern(regexp=".+@.+\\.[a-z]+") // email
        private String key2;

        private String key3;
}

然后我编写了一个自定义验证器，并通过传递所有值来调用静态函数 validate:

public class ValidationServiceImpl {

    public static HashMap<String,String> validate(String key1 , String key2 , String key3)  {
        HashMap<String,String> result = new HashMap();
        Example req = new Example(key1 , key2, key3);
    Validator validator;
    ValidatorFactory validatorFactory = Validation.buildDefaultValidatorFactory();
    validator = validatorFactory.getValidator();
    Set<ConstraintViolation<Example>> violations = validator.validate(req);
    if(!CollectionUtils.isEmpty(violations)) {
        for (ConstraintViolation<Example> violation : violations) 
        {
            String propertyPath = violation.getPropertyPath().toString();
            String message = violation.getMessage();
            result.put(propertyPath, message);
        }
    }
    return result;
    }

}

结果是返回所有违规的 HashMap 。记录它会给你结果。

所需的 POM 依赖项是:

<!-- https://mvnrepository.com/artifact/org.hibernate.validator/hibernate-validator -->
<dependency>
    <groupId>org.hibernate.validator</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>6.1.0.Final</version>
</dependency>
   <!-- https://mvnrepository.com/artifact/org.hibernate.validator/hibernate-validator-annotation-processor -->
<dependency>
    <groupId>org.hibernate.validator</groupId>
    <artifactId>hibernate-validator-annotation-processor</artifactId>
    <version>6.1.0.Final</version>
</dependency>


    <!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
<dependency>
    <groupId>javax.validation</groupId>
    <artifactId>validation-api</artifactId>
    <version>2.0.1.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.el/javax.el-api -->
<dependency>
    <groupId>javax.el</groupId>
    <artifactId>javax.el-api</artifactId>
    <version>3.0.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish/javax.el -->
<dependency>
    <groupId>org.glassfish</groupId>
    <artifactId>javax.el</artifactId>
    <version>3.0.0</version>
</dependency>