javax.validation 2.0.1 List<Object> 在 spring boot 中不起作用

Question

我是弹簧靴开发的新手。我试图通过从@RequestBody 传递 List 来验证发布请求。下面是控制类

@CrossOrigin
@RestController
@RequestMapping("/webapi/device")
@Validated
public class DeviceController extends AuthControllerImpl{

    @Autowired
    private DeviceServices deviceServices;


    //Test Postman request 01
    @PostMapping(path = "/udateDevices", consumes = MediaType.APPLICATION_JSON,  produces = MediaType.APPLICATION_JSON)
    public ResponseEntity<Object> updateDeviceToDB( @RequestBody List<@Valid Device> device, @RequestParam("token") String token, Errors errors)    {
        if (errors.hasErrors()) {
            return new ResponseEntity<Object>(new ErrorResponse(errors), HttpStatus.BAD_REQUEST);
        }

        if(isValidToken(token) != null){
            DeviceControllerResponse response = deviceServices.updateDeviceToDB(device);
            if (!response.isSuccess()) {
                return new ResponseEntity<Object>(response, HttpStatus.BAD_REQUEST);
            }
            return ResponseEntity.ok(response); 
        }else {
            return new ResponseEntity<Object>("Token has been expired/not valid.", HttpStatus.UNAUTHORIZED);
        }

    }
}

下面是我的实体类。

import javax.validation.constraints.NotEmpty;

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;

@Document(collection = "rpDevices")
public class Device {

    @Id
    private String id;

    @NotEmpty(message = "device udid should not be empty")
    private String udid;

    @NotEmpty(message = "deviceModel should not be empty")
    private String deviceModel;

    @NotEmpty(message = "device location should not be empty")
    private String location;

    @NotEmpty(message = "device port should not be empty")
    private String port;

    private String url;

    private String lastUpdate;
    private String imsi;
    private String msisdn;

    private String aliasName;

    public Device() {
        super();
    }

    public Device(String id, String udid, String deviceModel, String location, String port, String url,
            String lastUpdate, String imsi, String msisdn, String aliasName) { 
        this.id = id;
        this.udid = udid;
        this.deviceModel = deviceModel;
        this.location = location;
        this.port = port;
        this.url = url;
        this.lastUpdate = lastUpdate;
        this.imsi = imsi;
        this.msisdn = msisdn;
        this.aliasName = aliasName;
    }
    //Getter and setters 

}

它从不验证实体并给出以下错误。

    {
    "timestamp": 1591497348682,
    "status": 500,
    "error": "Internal Server Error",
    "exception": "javax.validation.UnexpectedTypeException",
    "message": "HV000030: No validator could be found for constraint 'javax.validation.constraints.NotEmpty' validating type 'java.lang.String'. Check configuration for 'updateDeviceToDB.device[0].port'",
    "path": "/xxxx/webapi/device/udateDevices"
}

有人可以帮助如何直接从请求中验证列表。 https://www.baeldung.com/spring-validate-list-controller我试过了，但没有帮助。

这是 pom 依赖项

        <dependencyManagement>
        <dependencies>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-parent</artifactId>
                <version>1.5.21.RELEASE</version>
                <scope>import</scope>
                <type>pom</type>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <dependencies>


        <!-- Adding spring boot cap -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.restdocs</groupId>
            <artifactId>spring-restdocs-mockmvc</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- Adding spring boot security,ldap -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.ldap</groupId>
            <artifactId>spring-ldap-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-ldap</artifactId>
        </dependency>

        <!-- https://mvnrepository.com/artifact/io.jsonwebtoken/jjwt -->
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.1</version>
        </dependency>

        <!-- starter-data-mongodb MongoRepository -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</artifactId>
        </dependency>

        <!-- javax.mail -->
        <dependency>
            <groupId>com.sun.mail</groupId>
            <artifactId>javax.mail</artifactId>
            <version>1.5.5</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>

        <!-- some other stuff related to testing -- >

</dependencies>

Answer 1

简单来说，validation-api是规范，hibernate-validator是实现。

spring-boot-starter-web会自动导入hibernate-validator，然后hibernate-validator会自动导入validation-api。

使用您的 jar 依赖项配置，有两个版本的validation-api. 一个1.1.0由hibernate-validator 5.3.6(from spring-boot-starter-web)2.0.1导入，另一个由您的显式声明导入。validation-api 2.0.1将与 一起使用hibernate-validator 5.3.6，这是不兼容的。导致找不到验证器错误。

当您删除时validation-api 2.0.1，1.1.0将使用版本。但是javax.validation.constraints.NotEmpty没有用 引入validation-api 1.1.0，所以你会得到另一个错误。

解决这个问题的几种方法：

1. 删除validation-api 2.0.1，使用org.hibernate.validator.constraints.NotEmpty代替javax.validation.constraints.NotEmpty。
2. 删除validation-api 2.0.1，将 spring boot 版本升级到 2.x，它将使用 hibernate-validator 6.x 和 validation-api 2.x。
3. 保留您的明确validation-api 2.0.1声明。然后添加另一个hibernate-validator 6.0.14声明。这种情况应该经过全面测试，因为可能存在一些 Spring 支持问题。