java - Spring自动将GET请求参数映射到POJO

Question

我的 REST Controller 中有包含很多参数的方法。例如:

@RequestMapping(value = "/getItem", method = RequestMethod.GET)
public ServiceRequest<List<SomeModel>> getClaimStatuses(
        @RequestParam(value = "param1", required = true) List<String> param1,
        @RequestParam(value = "param2", required = false) String param2,
        @RequestParam(value = "param3", required = false) List<String> param3,
        @RequestParam(value = "param4", required = false) List<String> param4,
        @RequestParam(value = "param5", required = false) List<String> param5) {
    // ......
}

我想将所有 GET 请求参数映射到 POJO 对象，例如:

public class RequestParamsModel {

   public RequestParamsModel() {

   }

   public List<String> param1;
   public String param2;
   public List<String> param3;
   public String param4;
   public String param5;
}

我需要像我们在 REST Controller 中使用 @RequestBody 所做的那样。

可以在 Spring 3.x 中做吗？

谢谢!

Answer 1

可能且简单，请确保您的 bean 具有正确的字段访问器。您可以为每个属性添加适当的验证，只需确保您有适当的 jar 。就代码而言，它类似于

import javax.validation.constraints.NotNull;

public class RequestParamsModel {

    public RequestParamsModel() {}

    private List<String> param1;
    private String param2;
    private List<String> param3;
    private String param4;
    private String param5;

    @NotNull
    public List<String> getParam1() {
        return param1;
    }
    //  ...
}

Controller 方法是:

import javax.validation.Valid;

@RequestMapping(value = "/getItem", method = RequestMethod.GET)
public ServiceRequest<List<SomeModel>> getClaimStatuses(@Valid RequestParamsModel model) {
    // ...
}

还有请求，比如:

/getItem?param1=list1,list2&param2=ok