Java hibernate验证程序doen'；t使用SpringMVC应用程序

我正在遵循《行动中的春天》第四册中的一个示例项目。然而，我在第5章受阻，在那里使用hibernate验证器验证表单提交的值。以下是一些相关代码：

我有一个叫斯皮特的模特：

package spittr;


import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;

import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;


public class Spitter {

    private Long id;

    @NotNull
    @Size(min=5, max=16)
    private String username;

    @NotNull
    @Size(min=5, max=25)
    private String password;

    @NotNull
    @Size(min=2, max=30)
    private String firstName;

    @NotNull
    @Size(min=2, max=30)
    private String lastName;
    private String email;

    public Spitter() {
    }

    public Spitter(String username, String password, String firstName, String lastName, String email) {
        this(null, username, password, firstName, lastName, email);
    }

    public Spitter(Long id, String username, String password, String firstName, String lastName, String email) {
        this.id = id;
        this.username = username;
        this.password = password;
        this.firstName = firstName;
        this.lastName = lastName;
        this.email = email;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    @Override
    public boolean equals(Object that) {
        return EqualsBuilder.reflectionEquals(this, that, "firstName", "lastName", "username", "password", "email");
    }

    @Override
    public int hashCode() {
        return HashCodeBuilder.reflectionHashCode(this, "firstName", "lastName", "username", "password", "email");
    }

}

控制器收集表单数据并对其进行验证：

package spittr.web;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.Errors;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import spittr.Spitter;
import spittr.data.SpitterRepository;

import javax.validation.Valid;

@Controller
@RequestMapping("/spitter")
public class SpitterController {

    private SpitterRepository spitterRepository;

    @Autowired
    public SpitterController(SpitterRepository spitterRepository) {
        this.spitterRepository = spitterRepository;
    }


    @RequestMapping(value = "register", method = RequestMethod.POST)
    public String processRegistration(@Valid Spitter spitter, Errors errors) {
        System.out.println(errors.hasErrors() + ": has errors...");
        if (errors.hasErrors()){
            return "registerForm";
        }
        spitterRepository.save(spitter);
        return "redirect:/spitter/" + spitter.getUsername();
    }
}

以及配置文件（基于Java）：

SpitterWebInitializer： 包spittr.config

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

import spittr.web.WebConfig;

public class SpitterWebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class<?>[]{RootConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class<?>[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }

}

build.gradle文件：

apply plugin: 'war'
apply plugin: 'idea'
apply plugin: 'java'
//apply from: 'gretty.plugin'
apply plugin: 'com.bmuschko.tomcat'

buildscript {
    repositories {
        jcenter()
    }

    dependencies {
        classpath 'com.bmuschko:gradle-tomcat-plugin:2.2.2'
    }
}

dependencies {
    compile "org.springframework:spring-webmvc:4.0.7.RELEASE"
    compile "org.springframework:spring-jdbc:4.0.7.RELEASE"
    compile "org.hibernate:hibernate-validator:5.3.2.Final"
    //providedCompile "org.glassfish.web:javax.el:2.2.4"
    // https://mvnrepository.com/artifact/javax.validation/validation-api
    providedCompile group: 'javax.validation', name: 'validation-api', version: '1.1.0.Final'

    compile "javax.servlet:jstl:1.2"
    compile "org.apache.commons:commons-lang3:3.1"
    def tomcatVersion = '7.0.59'
    tomcat "org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}",
            "org.apache.tomcat.embed:tomcat-embed-logging-juli:${tomcatVersion}",
            "org.apache.tomcat.embed:tomcat-embed-jasper:${tomcatVersion}"
    providedCompile "javax.servlet.jsp:jsp-api:2.1"
    providedCompile "javax.el:javax.el-api:2.2.4"
    providedCompile 'javax.servlet:javax.servlet-api:3.1.0'
}

sourceCompatibility = 1.8
targetCompatibility = 1.8

repositories {
    maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'}
    maven { url 'http://maven.springframework.org/release' }
    maven { url 'http://maven.springframework.org/milestone' }
    maven { url 'http://maven.springframework.org/snapshot' }
    maven { url 'http://download.java.net/maven/2' }
    mavenCentral()

}

war {
    baseName = 'spittr'
    version = '0.1.0'
}

tomcat {
    httpPort = 8080
    httpsPort = 8443
    enableSSL = true
//    contextPath = 'sample-app'
}

GitHub提供完整项目：

我花了几天时间在谷歌和Stackoverflow上搜索解决方案，但运气不好

---

请给我一些帮助，谢谢

我不熟悉Gradle，但我认为如果您删除这一行，它会起作用：

providedCompile group: 'javax.validation', name: 'validation-api', version: '1.1.0.Final' 

---

至少我用Maven测试了它，它解决了问题。

将

@Validated

注释添加到控制器类：

@Controller
@Validated
@RequestMapping("/spitter")
public class SpitterController {

...

---

默认情况下，hibernate验证器使用javax

[INFO]|+-org.hibernate.validator:hibernate validator:jar:6.0.12.Final:compile [INFO]| |+-（javax.validation:validation-api:jar:1.1.0.Final:

---

尝试升级到最新版本javax。验证：验证api:2.0.1.Final这对我来说很有效。

这会导致一个新问题，似乎与gradle tomcat插件有关，我也不知道。这个解决方案也与gradle有关，我刚刚测试了它：我克隆了你的Github repo。然后我替换了

buil的内容d、 gradle

是您在Stackoverflow上发布的一个。然后，我添加了一堆

@NotNull

和

@Size

注释，正如您在帖子中所描述的，验证不起作用。但随后我注释掉了这一行，验证工作正常。注意：我使用命令

gradle tomcatRun。真奇怪，你用的是什么gradle版本？我用的是Github repo的捆绑gradle包装器——显然是gradle 4.10。如果我注释掉这一行，然后运行gradle tomcatRun，我会遇到这样的异常：org.springframework.beans.factory.BeanCreationException:创建名为“requestMappingHandlerAdapter”的bean时出错，该bean在clas中定义为“requestMappingHandlerAdapter”s org.springframework.web.servlet.config.annotation.delegatingwebmvc配置：bean实例化失败；嵌套异常为org.springframework.beans.factory.BeanDefinitionStoreException:factory方法[public org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter org.springframework.web.servlet.config.annotation…..谢谢你的建议，但还是没有运气。我升级：编译“org.hibernate:hibernate validator:6.0.13.Final”，providedCompile组：'javax.validation'，名称：'validation api'，版本：'2.0.1.Final'，仍不工作。
providedCompile group: 'javax.validation', name: 'validation-api', version: '1.1.0.Final' 

@Controller
@Validated
@RequestMapping("/spitter")
public class SpitterController {

...