javax.validation 2.0.1 列表<object>不能在 spring 引导中工作<div id="text_translate"><p>我是新的 spring 引导开发。 我正在尝试通过从@RequestBody 传递列表来验证发布请求。 下面是控制class</p><pre> @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&lt;Object&gt; updateDeviceToDB( @RequestBody List&lt;@Valid Device&gt; device, @RequestParam("token") String token, Errors errors) { if (errors.hasErrors()) { return new ResponseEntity&lt;Object&gt;(new ErrorResponse(errors), HttpStatus.BAD_REQUEST); } if(isValidToken(token).= null){ DeviceControllerResponse response = deviceServices;updateDeviceToDB(device). if (,response.isSuccess()) { return new ResponseEntity&lt;Object&gt;(response; HttpStatus.BAD_REQUEST); } return ResponseEntity.ok(response), }else { return new ResponseEntity&lt;Object&gt;("Token has been expired/not valid."; HttpStatus.UNAUTHORIZED); } } }</pre><p> 下面是我的实体 class。</p><pre> 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 }</pre><p> 它从不验证实体并给出以下错误。</p><pre> { "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" }</pre><p> 有人可以帮助如何直接从请求日验证列表。 <a href="https://www.baeldung.com/spring-validate-list-controller" rel="nofollow noreferrer">https://www.baeldung.com/spring-validate-list-controller</a>我试过这个但没有帮助。</p><p> 这是 pom 依赖项</p><pre> &lt;dependencyManagement&gt; &lt;dependencies&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt; &lt;artifactId&gt;spring-boot-starter-parent&lt;/artifactId&gt; &lt;version&gt;1.5.21.RELEASE&lt;/version&gt; &lt;scope&gt;import&lt;/scope&gt; &lt;type&gt;pom&lt;/type&gt; &lt;/dependency&gt; &lt;/dependencies&gt; &lt;/dependencyManagement&gt; &lt;dependencies&gt; &lt;.-- Adding spring boot cap --&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt; &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt; &lt;artifactId&gt;spring-boot-starter-tomcat&lt;/artifactId&gt; &lt;scope&gt;provided&lt;/scope&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt; &lt;artifactId&gt;spring-boot-starter-thymeleaf&lt;/artifactId&gt; &lt;scope&gt;provided&lt;/scope&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework,restdocs&lt;/groupId&gt; &lt;artifactId&gt;spring-restdocs-mockmvc&lt;/artifactId&gt; &lt;scope&gt;test&lt;/scope&gt; &lt;/dependency&gt; &lt;.-- Adding spring boot security.ldap --&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt; &lt;artifactId&gt;spring-boot-starter-security&lt;/artifactId&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework.ldap&lt;/groupId&gt; &lt;artifactId&gt;spring-ldap-core&lt;/artifactId&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org:springframework.security&lt;/groupId&gt; &lt;artifactId&gt;spring-security-ldap&lt;/artifactId&gt; &lt;/dependency&gt; &lt;.-- https.//mvnrepository.com/artifact/io.jsonwebtoken/jjwt --&gt; &lt;dependency&gt; &lt;groupId&gt;io.jsonwebtoken&lt;/groupId&gt; &lt;artifactId&gt;jjwt&lt;/artifactId&gt; &lt;version&gt;0.9.1&lt;/version&gt; &lt;/dependency&gt; &lt;.-- starter-data-mongodb MongoRepository --&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt; &lt;artifactId&gt;spring-boot-starter-data-mongodb&lt;/artifactId&gt; &lt;/dependency&gt; &lt;.-- javax.mail --&gt; &lt;dependency&gt; &lt;groupId&gt;com:sun.mail&lt;/groupId&gt; &lt;artifactId&gt;javax.mail&lt;/artifactId&gt; &lt;version&gt;1.5.5&lt;/version&gt; &lt;/dependency&gt; &lt;.-- https.//mvnrepository.com/artifact/javax.validation/validation-api --&gt; &lt;dependency&gt; &lt;groupId&gt;javax.validation&lt;/groupId&gt; &lt;artifactId&gt;validation-api&lt;/artifactId&gt; &lt;version&gt;2.0.1.Final&lt;/version&gt; &lt;/dependency&gt; &lt;!-- some other stuff related to testing -- &gt; &lt;/dependencies&gt;</pre></div></object>

Question

I am new the spring boot developement. I am trying to validate the post request by passing List from @RequestBody. Below is control class

@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);
        }

    }
}

Below is my entity class.

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 

}

It never validates the entity and giving the below error.

    {
    "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"
}

Can some one help how to validate the List directly from request boday. https://www.baeldung.com/spring-validate-list-controller I tried this but not helps.

here are the pom dependencies

        <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

validation-api is the specification, hibernate-validator is the implementation, simply speaking.

spring-boot-starter-web will automatically import hibernate-validator , then hibernate-validator will automatically import validation-api .

With your jar dependencies configuration, there are two version of validation-api . One is 1.1.0 imported by hibernate-validator 5.3.6 (from spring-boot-starter-web), and the other is 2.0.1 imported by your explicit declaration. validation-api 2.0.1 will be used with hibernate-validator 5.3.6 , which is incompatible. Causing no validator could be found error.

When you remove validation-api 2.0.1 , 1.1.0 version will be used. But javax.validation.constraints.NotEmpty not introduced with validation-api 1.1.0 , so you will get another error.

Several ways to solve this problem:

1. remove validation-api 2.0.1 , use org.hibernate.validator.constraints.NotEmpty instead of javax.validation.constraints.NotEmpty .
2. remove validation-api 2.0.1 , upgrade spring boot version to 2.x, it will use hibernate-validator 6.x and validation-api 2.x.
3. keep your explicit validation-api 2.0.1 declaration. Then add another hibernate-validator 6.0.14 declaration. This case should be fully tested, cause there are maybe some Spring support issues.

Answer 2

I was having the similar issue, if you are using spring boot version (2.3.0) and above then validation-api wont work.

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-validation</artifactId>
</dependency>

Just add the above dependency in pom.xml . See release notes: https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.3-Release-Notes#validation-starter-no-longer-included-in-web-starters

Answer 3

The Errors parameter should follow the validated parameter:

public ResponseEntity<Object> updateDeviceToDB( @RequestBody List<@Valid Device> device, Errors errors, @RequestParam("token") String token) 

This is required in order to support multiple validated parameters in a single method.

Answer 4

public ResponseEntity<Object> updateDeviceToDB(@Valid @RequestBody List<Device> device, @RequestParam("token") String token, Errors errors)

It is common to validate a model after binding user input to it. Spring 3 provides support for declarative validation with JSR-303. This support is enabled automatically if a JSR-303 provider, such as Hibernate Validator, is present on your classpath. When enabled, you can trigger validation simply by annotating a Controller method parameter with the @Valid annotation:

Visit This Link: https://spring.io/blog/2009/11/17/spring-3-type-conversion-and-validation/