設置多個請求參數可選

Question

我陷在大的問題我不想理會對象的某些屬性，但不知道如何跳過來自同一請求對象的多個屬性

這裏是我的代碼

TestRequestInfo。 java的

public class TestRequestInfo extends BaseFilter { 

    private String id; 

    public String getId() { 
     return id; 
    } 
    public void setId(String id) { 
     this.id = id; 
    } 


} 

BaseFilter.java

public class BaseFilter { 

    private PagingInfo paging; 

    public PagingInfo getPaging() { 
     return paging; 
    } 
    public void setPaging(PagingInfo paging) { 
     this.paging = paging; 
    } 


} 

PagingInfo.java

@XmlRootElement(name = "paging") 
    public class PagingInfo { 
     private Integer totalNumOfRows; 
     private Integer minRowNumber; 
     private Integer maxRowNumber; 

     public PagingInfo() { 
      super(); 
     } 

     public PagingInfo(Integer totalNumOfRows, Integer maxRowNumber, Integer minRowNumber) { 
      super(); 
      this.totalNumOfRows = totalNumOfRows; 
      this.maxRowNumber = maxRowNumber; 
      this.minRowNumber = minRowNumber; 
     } 

     public PagingInfo(Integer maxRowNumber, Integer minRowNumber) { 
      super(); 
      this.maxRowNumber = maxRowNumber; 
      this.minRowNumber = minRowNumber; 
     } 
     public Integer getTotalNumOfRows() { 
      return totalNumOfRows; 
     } 
     public void setTotalNumOfRows(Integer totalNumOfRows) { 
      this.totalNumOfRows = totalNumOfRows; 
     } 

     public Integer getMinRowNumber() { 
      return minRowNumber; 
     } 

     public void setMinRowNumber(Integer minRowNumber) { 
      this.minRowNumber = minRowNumber; 
     } 

     public Integer getMaxRowNumber() { 
      return maxRowNumber; 
     } 

     public void setMaxRowNumber(Integer maxRowNumber) { 
      this.maxRowNumber = maxRowNumber; 
     } 
    } 

控制器

@RequestMapping(value = { "/testList"} , method=RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE) 
     public @ResponseBody String testList(HttpServletRequest request, TestRequestInfo testRequestInfo) 
     { 
     .... 
     .... 
     } 

要求我在空白的屬性要求而作出

http://example/abc/testList?id=&paging.maxRowNumber=&paging.minRowNumber= 

它使人們錯誤的請求，並給出ERROR 400，如果我填充這些參數，它會給出適當的響應。

@RequestParam(value = "i", required=false)僅適用於單個實體如何使minRowNumber和maxRowNumber爲可選項？

在此先感謝

Answer 1

這是我的代碼和我的測試。

> http://localhost:8080/FileUpload/testList.htm?id=1&paging.maxRowNumber=1&paging.minRowNumber=1 
> TestRequestInfo [id=1, getPaging()=PagingInfo [totalNumOfRows=null, 
> minRowNumber=1, maxRowNumber=1]] 
> 
> http://localhost:8080/FileUpload/testList.htm?id=1&paging.maxRowNumber=1&paging.minRowNumber= 
> TestRequestInfo [id=1, getPaging()=PagingInfo [totalNumOfRows=null, 
> minRowNumber=null, maxRowNumber=1]] 
> 
> http://localhost:8080/FileUpload/testList.htm?id=1&paging.maxRowNumber=&paging.minRowNumber= 
> TestRequestInfo [id=1, getPaging()=PagingInfo [totalNumOfRows=null, 
> minRowNumber=null, maxRowNumber=null]] 



@RequestMapping(value = { "/testList"} , method=RequestMethod.GET) 
public @ResponseBody String testList(HttpServletRequest request, TestRequestInfo testRequestInfo) 
{ 

    System.out.println(testRequestInfo); 
    return "ss"; 
} 

我的Spring配置

<servlet> 
    <servlet-name>mvc-dispatcher</servlet-name> 
    <servlet-class> 
     org.springframework.web.servlet.DispatcherServlet 
    </servlet-class> 
    <load-on-startup>1</load-on-startup> 
</servlet> 

<servlet-mapping> 
    <servlet-name>mvc-dispatcher</servlet-name> 
    <url-pattern>*.htm</url-pattern> 
</servlet-mapping> 

正如你所看到的代碼是完全的功能，看來問題可能是您正在使用的URL模式。

檢查是否正在使用

<mvc:annotation-driven/>