Spring 中@Validated 分组校验的使用解析

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>5.2.4.Final</version>
        </dependency>

public interface Add {
}

public interface Edit {
}

 
import com.example.jsr.commmon.Add;
import com.example.jsr.commmon.Edit;
import org.hibernate.validator.constraints.NotBlank; 
import javax.validation.constraints.Pattern; 
public class ParamsVo {
 
    //特殊用于修改年龄 标记使用 灵活放置位置
    public interface ModifyAge {
    }
 
    //年龄是1-120之间有效
    public static final String AGE_REG = "/^(?:[1-9][0-9]?|1[01][0-9]|120)$/";
 
    @NotBlank(
            groups = {Edit.class, ParamsVo.ModifyAge.class},
            message = "失败，id不能为空"
    )
    private String id;
 
    @NotBlank(groups = {Edit.class, Add.class}, message = "失败，名字不能为空")
    private String name;
 
    //自定义一个正则
    @NotBlank(groups = {Add.class, ParamsVo.ModifyAge.class},
            message = "失败，请填写age"
    )
    @Pattern(regexp = AGE_REG,groups = {Add.class, ParamsVo.ModifyAge.class},
            message = "失败，请填写正确age"
    )
    private String age; 
    ...省略setter getter 方法....
}

 
import org.springframework.validation.BindException;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
 
/**
 * 全局异常处理
 */
@ControllerAdvice
public class GlobalExceptionHandler {
 
    @ExceptionHandler(BindException.class)
    @ResponseBody
    public String handlerUnexpectedTypeException(BindException ex){
        BindingResult result = ex.getBindingResult();
        if (result.hasErrors()) {
            FieldError fieldError = result.getFieldError();
            if (fieldError != null) {
                return fieldError.getDefaultMessage();
            }
        }
        return "失败，请刷新重试";
    } 
    @ExceptionHandler(Exception.class)
    @ResponseBody
    public String handlerException(Exception ex){
        ex.printStackTrace();
        return "失败，请刷新重试";
    }
}

import com.example.jsr.Vo.ParamsVo;
import com.example.jsr.commmon.Add;
import com.example.jsr.commmon.Edit;
import org.springframework.stereotype.Controller;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
 
@Controller
@RequestMapping("/validated/test")
public class ValidatedTestController {
 
    @RequestMapping("/add")
    @ResponseBody
    public String add(
            @Validated(Add.class)ParamsVo paramsVo){
        System.out.println(String.format("add obj = {%s}",paramsVo.toString()));
        return "success";
    } 
    @RequestMapping("/edit")
    @ResponseBody
    public String editAll(
            @Validated({Edit.class,ParamsVo.ModifyAge.class})ParamsVo paramsVo){
        System.out.println(String.format("edit obj = {%s}",paramsVo.toString()));
        return "success"; 
    }
}