JSR303数据校验

添加bean层校验规则

@Pattern(regexp = "(^[a-z0-9_-]{6,16}$)|(^[\\u2E80-\\u9FFF]{2,5})",
    message = "用户名需要输入6-16位字母和数字或者2-5位中文的组合\"")

//@Email
@Pattern(regexp = "^([a-z0-9_.-]+)@([\\da-z.-]+)\\.([a-z.]{2,6})$" ,
    message = "邮箱格式不合法")
private String email;

获取校验信息

public Result saveEmp(@Valid Employee employee, BindingResult result) {
        if (result.hasErrors()) {
            Map<String, Object> map = new HashMap<>();
            List<FieldError> errors = result.getFieldErrors();
            for (FieldError fieldError : errors
            ) {
                //错误信息，错误字段
                map.put(fieldError.getField(), fieldError.getDefaultMessage());
            }
            return Result.error(500).setMsg("保存失败").add("error", map);
        } else {
            employeeService.saveEmp(employee);
            return Result.success().setMsg("保存成功");
        }
    }

导入依赖

<!--JSR303数据校验-->
<dependency>
    <groupId>org.hibernate.validator</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>6.0.18.Final</version>
</dependency>