Java 嵌套类列表的Spring验证
如本文所述,我已经实现了对自定义类列表的验证。作为参考,我的代码如下Java 嵌套类列表的Spring验证,java,spring,validation,spring-validator,Java,Spring,Validation,Spring Validator,如本文所述,我已经实现了对自定义类列表的验证。作为参考,我的代码如下 class TopDtoForm { @NotEmpty private String topVar; private List<DownDto> downVarList; //getter and setter } class DownDto { private Long id; private String name; //getter and setter } @Compone
class TopDtoForm {
@NotEmpty
private String topVar;
private List<DownDto> downVarList;
//getter and setter
}
class DownDto {
private Long id;
private String name;
//getter and setter
}
@Component
public class TopDtoFormValidator implements Validator {
@Override
public boolean supports(Class<?> clazz) {
return TopDtoForm.class.equals(clazz);
}
@Override
public void validate(Object target, Errors errors) {
TopDtoForm topDtoForm = (TopDtoForm) target;
for(int index=0; index<topDtoForm.getDownVarList().size(); index++) {
DownDto downDto = topDtoForm.getDownVarList().get(index);
if(downDto.getName().isEmpty()) {
errors.rejectValue("downVarList[" + index + "].name", "name.empty");
}
}
}
}
class-TopDtoForm{
@空空如也
私有字符串topVar;
私有列表;
//接二连三
}
下课{
私人长id;
私有字符串名称;
//接二连三
}
@组成部分
公共类TopDtoFormValidator实现验证器{
@凌驾
公共布尔支持(类clazz){
返回TopDtoForm.class.equals(clazz);
}
@凌驾
公共无效验证(对象目标、错误){
TopDtoForm TopDtoForm=(TopDtoForm)目标;
对于Spring MVC中的(int index=0;index),只需在列表的顶部用@Valid
注释,并将@NotEmpty
添加到DownDto
。Spring将验证它:
class TopDtoForm {
@NotEmpty
private String topVar;
@Valid
private List<DownDto> downVarList;
//getter and setter
}
class DownDto {
private Long id;
@NotEmpty
private String name;
//getter and setter
}
还考虑从<代码> @ NavTime<代码>转换为<代码> @ NoBLUT,也检查空白字符(空格、制表符等)。
您是否使用@Valid
注释在Spring MVC应用程序中验证它?如果是,只需在TopDtoForm
中使用@Valid
注释您的列表,并将@NotEmpty
添加到DownDto
。Spring将只验证它fine@RequestMapping(value=“/submitForm.htm”,method=RequestMethod.POST)public@ResponseBody字符串存储格式(@Valid@modeldattribute(“topDtoForm”)topDtoForm topDtoForm,BindingResult结果){..}
@RequestMapping(value = "/submitForm.htm", method = RequestMethod.POST) public @ResponseBody String saveForm(@Valid @ModelAttribute("topDtoForm") TopDtoForm topDtoForm, BindingResult result) {}