[英]How to nest @PathVariable in spring-rest?
我有一个简单的@RestController
服务,它接受查询参数,spring会自动将它们解析为bean
:
@ResponseStatus(HttpStatus.OK)
@RequestMapping(value = "/rest", method = RequestMethod.GET)
public MyDTO getGiataHotel(@Valid MyParams p) {
Sysout(p.getId()); //prints "123"
}
public class MyParams {
private int id;
//private SubParams subs;
}
查询: .../rest?id=123
现在我想用嵌套类构造参数对象。 我怎样才能做到这一点?
public class SubParams {
private String name;
//some more
}
理想情况下,我的查询应该是:查询: .../rest?id=123&name=test
,“test”字符串应该进入SubParams
bean。
那可能吗?
如果需要设置为内部类,则必须注册Custom Covertor。 改变如下:
@ResponseStatus(HttpStatus.OK)
@RequestMapping(value = "/rest", method = RequestMethod.GET)
public MyDTO getGiataHotel(@ModelAttribute("subParam") MyParams params, @Valid MyParams p) {
//Do stuff
}
subParam表示存在转换注册的转换器。
public class MyParamsConverter implements Converter<String, MyParams> {
@Override
public MyParams convert(String name) {
MyParams myParams = new MyParams();
SubParams subParams = new SubParams();
subParams.setName(name);
myParams.setSubParams(subParams);
return myParams;
}
}
您可以使用@ModelAttribute批注来实现此目的: http : //docs.spring.io/spring/docs/3.1.x/spring-framework-reference/html/mvc.html#mvc-ann-modelattrib-method-args (这不是在Path参数中,而是在requestParams中获取/发布)
@RequestMapping(value="/owners/{ownerId}/pets/{petId}/edit", method = RequestMethod.POST)
public String processSubmit(@ModelAttribute("pet") Pet pet, BindingResult result) {
if (result.hasErrors()) {
return "petForm";
}
// ...
}
也许你应该使用RequestMethod.POST
,就像这样
@RequestMapping(value = "/rest", method = RequestMethod.POST)
public ModelAndView getGiataHotel(@ModelAttribute("subparams") SubParams subparams){
SubParams sub=subparams;
//do something...
}
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