如何在Spring-rest中嵌套@PathVariable?

时间:2015-09-01 08:42:06

标签: java spring rest spring-restcontroller

我有一个简单的@RestController服务,它接受查询参数,而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,以及"测试" string应该进入SubParams bean。

这可能吗?

3 个答案:

答案 0 :(得分:1)

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 表示已注册转换的转换器。

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;
    }

}

答案 1 :(得分:0)

您可以使用@ModelAttribute注释来实现此目的: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";
     } 

     // ...       

}

答案 2 :(得分:0)

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...
}