7. SpringBoot校验

SpringBoot校验

1. 依赖

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

2. 默认配置属性文件ValidationMessages.properties

   # 可以写一些属性对
   city.cityname.notnull=城市名不能为空
   city.cityInitial.notnull=不为空哦
   city.cityInitial.size=5
   

3. 实体类加注解

   package com.demo.entity;
   
   import org.hibernate.validator.constraints.Length;
   import org.springframework.context.annotation.PropertySource;
   import javax.validation.constraints.NotNull;
   import java.io.Serializable;
   import java.util.Date;
   
   public class City implements Serializable {
   
       private static final long serialVersionUID = -40142021265771170L;
       /**
        * 主键 自增长
        */
       private Integer id;
       /**
        * 城市名称
        */
       @NotNull(message = "{city.cityname.notnull}")
       private String cityName;
       /**
        * 城市名称拼音
        */
       private String cityNameSpell;
       /**
        * 城市首字母
        */
       @NotNull(message = "{city.cityInitial.notnull}")
       @Length(min = 1, max = 1, message = "{city.cityInitial.size}")
       private String cityInitial;
   
   }
   

4. 方法参数加注解

   @PostMapping("/add")
   public HttpResult add(@Validated City city){
       return HttpResult.ok("保存城市信息成功");
   }
   

如果出现乱码记得去设置都调成UTF-8