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[英]Unable to return List of objects for the mediatype “application/xml” in rest api
[英]How to return a list of objects as XML in Spring boot rest API
我正在編寫一個 Java 網絡服務,它將以下面的 XML 格式返回產品列表。
<?xml version="1.0"?>
<Products>
<Product>
<Name>Notepad++ 6</Name>
<PatchUid>00038b09-0000-0000-0000-000000000000</PatchUid>
<RegID>0</RegID>
</Product>
<Product>
<Name>UltraVNC 1.2.4.0 x86</Name>
<PatchUid>00035767-0000-0000-0000-000000000000</PatchUid>
<RegID>0</RegID>
</Product>
<Product>
<Name>FileZilla 3</Name>
<PatchUid>00038c69-0000-0000-0000-000000000000</PatchUid>
<RegID>1033</RegID>
</Product>
</Products>
我正在使用如下所示的基於類的投影從 jdbc/hibernate 連接中獲取 Name、PatchUid、RegId 標簽。
public class ProductView implements Serializable {
private static final long serialVersionUID = 1L;
@JsonProperty("Name")
String name;
@JsonProperty("PatchUid")
String patchuid;
@JsonProperty("RegId")
String language;
public ProductView() {
super();
// TODO Auto-generated constructor stub
}
public ProductView(String name, String patchuid, String language) {
this.name = name;
this.patchuid = patchuid;
this.language = language;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPatchuid() {
return patchuid;
}
public void setPatchuid(String patchuid) {
this.patchuid = patchuid;
}
public String getLanguage() {
return language;
}
public void setLanguage(String language) {
this.language = language;
}
}
現在,為了返回 XML 響應,我使用下面的 DTO 類和其余控制器方法
public class Products implements Serializable {
private static final long serialVersionUID = 3639898896768313168L;
private List<ProductView> products;
public Products() {
super();
// TODO Auto-generated constructor stub
}
public Products(List<ProductView> products) {
this.products = products;
}
public List<ProductView> getProduct() {
return products;
}
public void setProduct(List<ProductView> products) {
this.products = products;
}
}
@GetMapping("/patchMetadata")
public Products getProductMetadata(@RequestParam(required=false) Boolean filtered) {
logger.info("getProductMetadata called");
List<ProductView> prodViews = null;
if(filtered == null || filtered == false)
{
prodViews = prodMgmtService.findAllPatches();
}
else if (filtered == true) {
prodViews = prodMgmtService.findFilteredPatches();
}
Products products = new Products();
products.setProduct(prodViews);
return products;
}
但返回的 XML 格式如下所示。 請注意需要刪除的額外產品標簽。
<Products>
<product>
<product>
<Name>FileZilla 3</Name>
<PatchUid>0003931b-0000-0000-0000-000000000000</PatchUid>
<RegId>0</RegId>
</product>
<product>
<Name>Notepad++ 6</Name>
<PatchUid>00038b09-0000-0000-0000-000000000000</PatchUid>
<RegId>0</RegId>
</product>
<product>
<Name>UltraVNC 1.2.4.0 x86</Name>
<PatchUid>00035767-0000-0000-0000-000000000000</PatchUid>
<RegId>0</RegId>
</product>
</product>
</Products>
請讓我知道任何建議以糾正從網絡服務返回的 XML 格式。
返回List<ProductView>
,而不是從您的服務中返回Products
:
@GetMapping("/patchMetadata")
public List<ProductView> getProductMetadata(@RequestParam(required=false) Boolean filtered) {
List<ProductView> prodViews = null;
if(filtered == null || filtered == false) {
prodViews = prodMgmtService.findAllPatches();
} else if (filtered == true) {
prodViews = prodMgmtService.findFilteredPatches();
}
return prodViews;
}
使用 @JacksonXmlElementWrapper(useWrapping = false) 更改 Products DTO 類,如下所示。
公共類產品實現可序列化{
private static final long serialVersionUID = 3639898896768313168L;
@JacksonXmlElementWrapper(useWrapping = false)
@JsonProperty("Product")
private List<ProductView> product;
public Products() {
super();
// TODO Auto-generated constructor stub
}
public Products(List<ProductView> products) {
this.product = products;
}
public List<ProductView> getProduct() {
return product;
}
public void setProduct(List<ProductView> products) {
this.product = products;
}
}
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