SpringMVC 数据校验实例解析

<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->    <dependency>      <groupId>org.hibernate</groupId>      <artifactId>hibernate-validator</artifactId>      <version>5.4.1.Final</version>    </dependency>

public class UserInfo {  @NotNu1l(message="编号不能为空")  private Integer user_ id;  @NotNull  @Length(min = 2,max = 8,message = "用户名不能少于2位大于8位" )  private String user. name;  @Email(message = "邮箱格式不正确")  private String user. email;  @Pattern(regexp = "" ,message = "手机号格式不正切")  private String user. phone;  private String user_ address;  @Pattern(regexp =“" ,message =” 身份证号不正确")  private String user. cardCode;  //身份证号  pub1ic Integer getUser_ id() {    return user_ id;  }

<form action=" /my/validate" method="post">  编号: <input type="text" name="user. id"/> <br/>  姓名: <input type= "text" name="user. name"/>  <br/>  邮箱: <input type="text" name="user. email"/> <br/>  手机号: <input type="text" name="user phone"/> <br/>  地址: <input type="text" name="user. address"/> <br/>  身份证号:<input type="text" name="user cardCode"/> <br/>  <input type="submit" value=" 提交" /></form>

@RequestMapping("/validate")  public String validate(@Valid UserInfo info, BindingResult bindingResult){//如果有异常信息    if (bindingResult . hasErrors()) {//获取异常信息对象      List<0bjectError> errors = bindingResult . getAllErrors();//将异常信息输出      for (ObjectError error : errors)      {        System. out .println(error . getDefaultMessage());      }      System. out . print1n(info. getUser_ email());      return "index" ;    }