澤西2多部分

Question

我們正在使用RESTful Web服務，該服務具有接受多部分的資源。 我們在Spring 4中使用Jersey2。我遇到以下異常

<code>
org.glassfish.jersey.server.model.ModelValidationException: Validation of the application resource model has failed during application initialization.
[[FATAL] No injection source found for a parameter of type public javax.ws.rs.core.Response xxx.AssetUploadResource.uploadAssetByStream(java.io.InputStream,org.glassfish.jersey.media.multipart.FormDataContentDisposition,java.lang.String) at index 0.; source='ResourceMethod{httpMethod=POST, consumedTypes=[multipart/form-data], producedTypes=[application/json], suspended=false, suspendTimeout=0, suspendTimeoutUnit=MILLISECONDS, invocable=Invocable{handler=ClassBasedMethodHandler{handlerClass=class xxx.AssetUploadResource, handlerConstructors=[org.glassfish.jersey.server.model.HandlerConstructor@1d63c523]}, definitionMethod=public javax.ws.rs.core.Response xxx.AssetUploadResource.uploadAssetByStream(java.io.InputStream,org.glassfish.jersey.media.multipart.FormDataContentDisposition,java.lang.String), parameters=[Parameter [type=class java.io.InputStream, source=Asset, defaultValue=null], Parameter [type=class org.glassfish.jersey.media.multipart.FormDataContentDisposition, source=asset, defaultValue=null], Parameter [type=class java.lang.String, source=Asset Metadata as a json string, defaultValue=null]], responseType=class javax.ws.rs.core.Response}, nameBindings=[]}']
</code>

澤西版是2.24。 此外，還添加了web.xml中的多部分依賴項和init-param

<code>
@Api
@Path("/asset")
@Component
public class AssetUploadResource {

    @POST
    @Consumes(MULTIPART_FORM_DATA)
    @Produces(APPLICATION_JSON)
    public Response uploadAssetByStream(
            @FormDataParam("asset") InputStream asset,
            @FormDataParam("asset") FormDataContentDisposition assetDetails,
            @FormDataParam("metadata") String metadata) {
</code>

web.xml中

<code>

 <servlet>
        <servlet-name>jersey-serlvet</servlet-name>
        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
        <init-param>
            <param-name>jersey.config.server.provider.classnames</param-name>
            <param-value>org.glassfish.jersey.media.multipart.MultiPartFeature</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.server.provider.packages</param-name>
            <param-value>xxx</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
</code>

你能告訴我我錯過了什么嗎？

Answer 1

我正在使用帶有Jersey的Spring，看起來spring-boot-starter-jersey依賴性不包括多部分表單數據媒體類型的必要依賴性，這是一個問題。

添加依賴項：

    <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-media-multipart</artifactId>
        <version>2.26</version>
    </dependency>

之后你還需要注冊它。 我是這樣做的：

@Configuration
public class JerseyConfig extends ResourceConfig {


    JerseyConfig() {
        // where I keep all my things
        packages(
                "com.mycompany.api"                
        );

        // this is what you are looking for
        register(org.glassfish.jersey.media.multipart.MultiPartFeature.class);
    }
}