spring boot 1.4默认使用 hibernate validator
spring boot 1.4默认使用 hibernate validator 5.2.4 Final实现校验功能。hibernate validator 5.2.4 Final是JSR 349 Bean Validation 1.1的具体实现。
How to disable Hibernate validation in a Spring Boot project
As [M. Deinum] mentioned in a comment on my original post, the solution is to set:
spring.jpa.properties.javax.persistence.validation.mode=none
In the application.properties file.
Additionally, this behaviour is described here (its easy to miss because no example is provided).
http://stackoverflow.com/questions/26764532/how-to-disable-hibernate-validation-in-a-spring-boot-project
一 初步使用
hibernate vilidator主要使用注解的方式对bean进行校验，初步的例子如下所示：
package com.query; import javax.validation.constraints.Min; import org.hibernate.validator.constraints.NotBlank; public class Student { //在需要校验的字段上指定约束条件 @NotBlank private String name; @Min(3) private int age; @NotBlank private String classess; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getClassess() { return classess; } public void setClassess(String classess) { this.classess = classess; } }
然后在controller中可以这样调用，加上@Validated注解即可。
package com.controller; import org.springframework.validation.annotation.Validated; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import com.learn.validate.domain.Student; @RestController public class ValidateController { @RequestMapping(value="testStudent") public void testStudent(@Validated Student student) { } }
如果校验失败，默认会返回Spring boot 框架的出错信息。是一个json串，里面有详细的出错描述。
二 使用gruops 属性来实现区别不同的校验需求
在上面的例子中，如果Student bean想要用于两个不同的请求中，每个请求有不同的校验需求，例如一个请求只需要校验name字段,一个请求需要校验name和age两个字段，那该怎么做呢？
使用注解的groups属性可以很好的解决这个问题,如下所示：
package com.query; import javax.validation.constraints.Min; import org.hibernate.validator.constraints.NotBlank; public class Student { //使用groups属性来给分组命名，然后在需要的地方指定命令即可 @NotBlank(groups=NAME.class) private String name; @Min(value=3,groups=AGE.class) private int age; @NotBlank private String classess; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getClassess() { return classess; } public void setClassess(String classess) { this.classess = classess; } public interface NAME{}; public interface AGE{}; }
根据需要在@Validated属性中指定需要校验的分组名，可以指定1到多个。指定到的分组名会全部进行校验，不指定的不校验。
package com.controller; import org.springframework.validation.annotation.Validated; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import com.learn.validate.domain.Student; import com.learn.validate.domain.Student.AGE; import com.learn.validate.domain.Student.NAME; @RestController public class ValidateController { @RequestMapping(value="testStudent") public void testStudent(@Validated Student student) { } @RequestMapping(value="testStudent1") public void testStudent1(@Validated(NAME.class) Student student) { } @RequestMapping(value="testStudent2") public void testStudent2(@Validated({NAME.class,AGE.class}) Student student) { } }
三 使用 @ScriptAssert 注解校验复杂的业务逻辑
如果需要校验的业务逻辑比较复杂，简单的@NotBlank，@Min注解已经无法满足需求了，这时可以使用@ScriptAssert来指定进行校验的方法，通过方法来进行复杂业务逻辑的校验，然后返回 true或false来表明是否校验成功。
例如下面的例子：
package com.query; import javax.validation.constraints.Min; import org.hibernate.validator.constraints.NotBlank; import org.hibernate.validator.constraints.ScriptAssert; import com.learn.validate.domain.Student.CHECK; //通过script 属性指定进行校验的方法，传递校验的参数， //依然可以通过groups属性指定分组名称 @ScriptAssert(lang="javascript",script="com.learn.validate.domain .Student.checkParams(_this.name,_this.age,_this.classes)", groups=CHECK.class) public class Student { @NotBlank(groups=NAME.class) private String name; @Min(value=3,groups=AGE.class) private int age; @NotBlank private String classess; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getClassess() { return classess; } public void setClassess(String classess) { this.classess = classess; } public interface NAME{}; public interface AGE{}; public interface CHECK{}; //注意进行校验的方法要写成静态方法，否则会出现 //TypeError: xxx is not a function 的错误 public static boolean checkParams(String name,int age,String classes) { if(name!=null&&age>8&classes!=null) { return true; } else { return false; } } }
在需要的地方，通过分组名称进行调用
package com.controller; import org.springframework.validation.annotation.Validated; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import com.learn.validate.domain.Student; import com.learn.validate.domain.Student.CHECK; @RestController public class ValidateController { @RequestMapping(value="testStudent3") public void testStudent3(@Validated(CHECK.class) Student student) { } }
原文链接：http://www.jianshu.com/p/a9b1e2f7a749
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import java.util.Set; import javax.validation.ConstraintViolation; import javax.validation.Validation; import javax.validation.Validator; import javax.validation.ValidatorFactory; import javax.validation.constraints.Max; import javax.validation.constraints.Min; import javax.validation.constraints.NotNull; public class JavaxValidation { public static void main(String[] args) { Dog d = new Dog(); d.setName("小明"); d.setAge(2); ValidatorFactory vf = Validation.buildDefaultValidatorFactory(); Validator validator = vf.getValidator(); Set<ConstraintViolation<Dog>> set = validator.validate(d); for (ConstraintViolation<Dog> constraintViolation : set) { System.out.println(constraintViolation.getMessage()); } } } class Dog { @NotNull(message = "不能为空") private String name; @Min(value = 1, message = "最少为1") @Max(value = 20, message = "最大为20") private int age; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } }
https://my.oschina.net/p2ng/blog/336690
