package com.entity;

import org.hibernate.validator.constraints.Email;

import org.hibernate.validator.constraints.NotBlank;

import javax.validation.constraints.Min;

public class Foo {

    @NotBlank(message = "此name不能为空")

    private String name;

    @Min(value = ,message = "此age最小为18")

    private Integer age;

    @Email(message = "邮箱格式错误")

    private String email;

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public Integer getAge() {

        return age;

    }

    public void setAge(Integer age) {

        this.age = age;

    }

    public String getEmail() {

        return email;

    }

    public void setEmail(String email) {

        this.email = email;

    }

}

package com.validation;

import com.entity.Bar;

import com.entity.BarValidator;

import com.entity.Foo;

import org.springframework.validation.BindingResult;

import org.springframework.validation.ObjectError;

import org.springframework.validation.annotation.Validated;

import org.springframework.web.bind.WebDataBinder;

import org.springframework.web.bind.annotation.InitBinder;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

import javax.validation.Valid;

import java.util.List;

@RestController

public class FooController {

    @RequestMapping("/fooTest")

    public String foo(@Valid Foo foo, BindingResult result){

        if(result.hasErrors()){

            List<ObjectError> allErrors = result.getAllErrors();

            for(ObjectError objectError :allErrors){

                String defaultMessage = objectError.getDefaultMessage();

                System.out.println("defalutMessage="+defaultMessage);

            }

            System.out.println("allErrors="+allErrors.toArray());

            return  "failed";

        }

        return  "success";

    }

}

package com.validation;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;

@SpringBootApplication(exclude={DataSourceAutoConfiguration.class})

public class Application {

    public static void main(String[] args) {

        SpringApplication.run(Application.class,args);

    }

}