多个查询值绑定在POJO中

huangapple
go评论93阅读模式
英文:

Multiple query values binding in POJO

问题

我有一个简单的控制器和REST API，如下所示，我想将 'name'、'price' 和 'description' 查询值映射到 ProductSearchCriteria 中：

  1. @Controller("/api/v1/product")
  2. public class ProductController {
  3.     private static final Logger LOG = LoggerFactory.getLogger(ProductController.class);
  5.     @Operation(summary = "Find all products")
  6.     @ApiResponses(value = {@ApiResponse(content = {@Content(mediaType = "application/json", schema = @Schema(implementation = ProductViewModel.class))}})
  7.     @Get(uri="/")
  8.     List<ProductViewModel> find(@Valid ProductSearchCriteria searchCriteria) {
  9.         LOG.info("Finding all the products");
  10.         //return productProducer.find(searchCriteria);
  11.         return new ArrayList<>();
  12.     }
  13. }

产品搜索条件

  1. public class ProductSearchCriteria {
  2.     @JsonProperty("name")
  3.     Optional<String> name;
  5.     @JsonProperty("price")
  6.     Optional<Float> price;
  8.     @JsonProperty("description")
  9.     Optional<String> description;
  11.     public Optional<String> getName() {
  12.         return name;
  13.     }
  15.     public void setName(Optional<String> name) {
  16.         this.name = name;
  17.     }
  19.     public Optional<Float> getPrice() {
  20.         return price;
  21.     }
  23.     public void setPrice(Optional<Float> price) {
  24.         this price = price;
  25.     }
  27.     public Optional<String> getDescription() {
  28.         return description;
  29.     }
  31.     public void setDescription(Optional<String> description) {
  32.         this.description = description;
  33.     }
  34. }

错误

  1. 错误：400 Bad Request
  2. {
  3.   "message": "Required argument [ProductSearchCriteria searchCriteria] not specified",
  4.   "path": "/searchCriteria",
  5.   "_links": {
  6.     "self": {
  7.       "href": "/api/v1/product?name=string&price=0&description=string",
  8.       "templated": false
  9.     }
  10.   }
  11. }
英文:

I have a simple controller and rest API as below in which I want to map 'name', 'price' and 'description' querie values into ProductSearchCriteria :

  1.     @Controller(&quot;/api/v1/product&quot;)
  2.     public class ProductController {
  3.         private static final Logger LOG = LoggerFactory.getLogger(ProductController.class);
  4.     
  5.         @Operation(summary = &quot;Find all products&quot;)
  6.         @ApiResponses(value = {@ApiResponse(content = {@Content(mediaType = &quot;application/json&quot;, schema = @Schema(implementation = ProductViewModel.class))})})
  7.         @Get(uri=&quot;/&quot;)
  8.         List&lt;ProductViewModel&gt; find(@Valid ProductSearchCriteria searchCriteria) {
  9.             LOG.info(&quot;Finding all the products&quot;);
  10.             //return productProducer.find(searchCriteria);
  11.             return new ArrayList&lt;&gt;();
  12.         }
  13.     }

product search criteria

  1. public class ProductSearchCriteria {
  2.     @JsonProperty(&quot;name&quot;)
  3.     Optional&lt;String&gt; name;
  5.     @JsonProperty(&quot;price&quot;)
  6.     Optional&lt;Float&gt; price;
  8.     @JsonProperty(&quot;description&quot;)
  9.     Optional&lt;String&gt; description;
  11.     public Optional&lt;String&gt; getName() {
  12.         return name;
  13.     }
  15.     public void setName(Optional&lt;String&gt; name) {
  16.         this.name = name;
  17.     }
  19.     public Optional&lt;Float&gt; getPrice() {
  20.         return price;
  21.     }
  23.     public void setPrice(Optional&lt;Float&gt; price) {
  24.         this.price = price;
  25.     }
  27.     public Optional&lt;String&gt; getDescription() {
  28.         return description;
  29.     }
  31.     public void setDescription(Optional&lt;String&gt; description) {
  32.         this.description = description;
  33.     }
  34. }

Error

  1. Error: 400 Bad Request
  2.     {
  3.       &quot;message&quot;: &quot;Required argument [ProductSearchCriteria searchCriteria] not specified&quot;,
  4.       &quot;path&quot;: &quot;/searchCriteria&quot;,
  5.       &quot;_links&quot;: {
  6.         &quot;self&quot;: {
  7.           &quot;href&quot;: &quot;/api/v1/product?name=string&amp;price=0&amp;description=string&quot;,
  8.           &quot;templated&quot;: false
  9.         }
  10.       }
  11.     }

答案1

得分: 2

  1. 您在`@Get`注解上漏掉了一些内容：
  3. ```java
  4.     @Operation(summary = "查找所有产品")
  5.     @ApiResponses(value = {@ApiResponse(content = {@Content(mediaType = "application/json", schema = @Schema(implementation = ProductViewModel.class))})})
  6.     @Get(uri="/{?searchCriteria*}")
  7.     List<ProductViewModel> find(@Valid ProductSearchCriteria searchCriteria) {
  8.         LOG.info("查找所有产品");
  9.         //return productProducer.find(searchCriteria);
  10.         return new ArrayList<>();
  11.     }

您还需要在ProductSearchCriteria的POJO上添加@Introspected注解。

由于您在使用@Valid，我建议在ProductSearchCriteria内部使用验证注解，而不是Optional。

  2. <details>
  3. <summary>英文:</summary>
  5. You missed something on the `@Get` annotation
  7. ```java
  8.     @Operation(summary = &quot;Find all products&quot;)
  9.     @ApiResponses(value = {@ApiResponse(content = {@Content(mediaType = &quot;application/json&quot;, schema = @Schema(implementation = ProductViewModel.class))})})
  10.     @Get(uri=&quot;/{?searchCriteria*}&quot;)
  11.     List&lt;ProductViewModel&gt; find(@Valid ProductSearchCriteria searchCriteria) {
  12.         LOG.info(&quot;Finding all the products&quot;);
  13.         //return productProducer.find(searchCriteria);
  14.         return new ArrayList&lt;&gt;();
  15.     }

You also miss an @Introspected on your ProductSearchCriteria POJO.

Since you are using @ValidI would go with validation annotation inside ProductSearchCriteria in place of Optional

huangapple
  • 本文由 发表于 2020年10月6日 20:20:23
  • 转载请务必保留本文链接：https://go.coder-hub.com/64225688.html
  • java
  • micronaut
  • micronaut-client
  • micronaut-rest
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