Spring map自动向POJO获取请求参数

Question

@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请求参数映射到一个POJO对象，如下所示：

public class RequestParamsModel {

   public RequestParamsModel() {

   }

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

我需要一些类似于我们可以在REST控制器中使用@RequestBody的东西。

有可能在Spring3.x做吗？

谢了！

Answer 1

确保您的bean有合适的字段访问器，这是可能的，也是容易的。您可以为每个属性添加适当的验证，只需确保有适当的JAR就位。就代码而言，它将类似于

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;
    }
    //  ...
}

控制器方法为：

import javax.validation.Valid;

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

请求，类似于：

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