HTTP状态400 - 客户端发送的请求在语法上不正确

它存在一些问题。因为它提供Http状态400- 客户端发送的请求在语法上不正确。当我提交。它没有达到控制器。请审查和帮助。HTTP状态400 - 客户端发送的请求在语法上不正确

<c:url var="addr" value="/productsPage"/> 
<form:form method="POST" action="${addr}" modelAttribute="productsmodel" enctype="multipart/form-data"> 

<form:input type="hidden" path="productId" value="" /> 
<form:input type="hidden" path="vendorDetails" value="" /> 
<form:input type="hidden" path="productDetail" value="" /> 

<tr><td>Product Name:--</td><td><form:input type="text" path="ProductName" value=""/></td></tr> 
<tr><td>Product Description:--</td><td><form:input type="text" path="ProductDescription" value="" /></td></tr> 
<tr><td>Category:-- 
</td><td><form:input type="text" path="Category" name="categorylist" list="listcategory" /> 
          <datalist id="listcategory"> 
          <option value="Add New"> 
          <c:forEach items="${all_categories}" var="all_categories"> 
          <option value="${all_categories.categoryName}">       
          </c:forEach> 
          </datalist>      

</td></tr> 
<tr><td>Quantity/Unit:--</td><td><form:input type="text" path="quantityPerUnit" value="" /></td></tr> 
<tr><td>Unit Price:--</td><td><form:input type="text" path="unitPrice" value="" /></td></tr> 
<tr><td>Size:--</td><td><form:radiobutton path="size" value="1"/>L<form:radiobutton path="size" value="2"/>M<form:radiobutton path="size" value="3"/>S<form:radiobutton path="size" value="0"/>NA</td></tr> 
<tr><td>Color:--</td><td><form:input type="text" path="color" value=""/></td></tr> 
<tr><td>Discount:--</td><td><form:input type="text" path="discount" value=""/></td></tr> 
<tr><td>Weight/Unit:--</td><td><form:input type="text" path="weight" value=""/></td></tr> 
<tr><td>Units on Order:--</td><td><form:input type="text" path="unitsOnOrder" value=""/></td></tr> 
<tr><td>Picture:--</td><td><input type="file" name="pictureLink" size="100" /></td></tr> 

<tr><td></td><td><input type="submit" value="Save"/></td></tr> 

</form:form> 

</table>

控制器

{

@RequestMapping(value={"/productsPage"},method=RequestMethod.POST) 
public String ProductPost(@ModelAttribute("productsmodel") Products products, Model model,@RequestParam("picture") MultipartFile file1){ 


    System.out.println("In Post Products"); 

    return "products"; 
    }

}

模型 {

@Entity 
@Table(name="Products") 
public class Products 
{ 
    @Id 
    @GeneratedValue 
    @Column(name="ProductId") 
    private Integer productId; 

    @Column(name="productName") 
    private String ProductName; 

    @Column(name="productDescription") 
    private String ProductDescription; 

    @ManyToOne 
    @JoinColumn(name="category") 
    private Categories category; 

    @Column(name="quantityPerUnit") 
    private int quantityPerUnit; 

    @Column(name="unitPrice") 
    private BigDecimal unitPrice; 

    @Column(name="size") 
    private int size; 

    @Column(name="color") 
    private String color; 

    @Column(name="discount") 
    private BigDecimal discount; 

    @Column(name="weight") 
    private double weight; 

    @Column(name="unitsOnOrder") 
    private int unitsOnOrder; 

    @ManyToOne 
    @JoinColumn(name="vendorDetailsId") 
    private Vendor vendorDetails; 

    @OneToOne 
    @JoinColumn(name="ProductExtraDetails") 
    private ProductExtraDetails productDetail;

}

来源

2016-02-24 Zubair Nabi