我正在使用基于 Jersey 的 restful 服务实现策略来构建一个用于上传文件的服务。 我的服务类名称是:UploadFileService.java(参见下面的代码)

 package com.jerser.service;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import com.sun.jersey.core.header.FormDataContentDisposition;
import com.sun.jersey.multipart.FormDataParam;

@Path("/fileUpload")
public class UploadFileService {

    @POST
    @Path("/upload")
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    public Response uploadFile(
        @FormDataParam("file") InputStream uploadedInputStream,
        @FormDataParam("file") FormDataContentDisposition fileDetail) {

        String uploadedFileLocation = "d://uploaded/" + fileDetail.getFileName();

        // save it
        writeToFile(uploadedInputStream, uploadedFileLocation);

        String output = "File uploaded to : " + uploadedFileLocation;

        return Response.status(200).entity(output).build();

    }

    // save uploaded file to new location
    private void writeToFile(InputStream uploadedInputStream,
        String uploadedFileLocation) {

        try {
            OutputStream out = new FileOutputStream(new File(
                    uploadedFileLocation));
            int read = 0;
            byte[] bytes = new byte[1024];

            out = new FileOutputStream(new File(uploadedFileLocation));
            while ((read = uploadedInputStream.read(bytes)) != -1) {
                out.write(bytes, 0, read);
            }
            out.flush();
            out.close();
        } catch (IOException e) {

            e.printStackTrace();
        }

    }

}

这些是我的库中的 JAR 文件:

aopalliance-repackaged-2.4.0-b10.jar     
asm-debug-all-5.0.2.jar     
hk2-api-2.4.0-b10.jar  
hk2-locator-2.4.0-b10.jar     
hk2-utils-2.4.0-b10.jar     
javassist-3.18.1-GA.jar     
javax.annotation-api-1.2.jar     
javax.inject-2.4.0-b10.jar     
javax.servlet-api-3.0.1.jar     
javax.ws.rs-api-2.0.1.jar     
jaxb-api-2.2.7.jar     
jersey-client.jar     
jersey-common.jar     
jersey-container-servlet-core.jar     
jersey-container-servlet.jar     
jersey-core-1.11.jar     
jersey-guava-2.17.jar     
jersey-media-jaxb.jar  
jersey-multipart-1.18.jar    
jersey-server.jar
org.osgi.core-4.2.0.jar
osgi-resource-locator-1.0.1.jar     
persistence-api-1.0.jar    
validation-api-1.1.0.Final.jar

当我尝试启动我的 tomcat 服务器时出现以下错误:

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 com.jerser.service.UploadFileService.uploadFile(java.io.InputStream,com.sun.jersey.core.header.FormDataContentDisposition) at index 0.; source='ResourceMethod{httpMethod=POST, consumedTypes=[multipart/form-data], producedTypes=[], suspended=false, suspendTimeout=0, suspendTimeoutUnit=MILLISECONDS, invocable=Invocable{handler=ClassBasedMethodHandler{handlerClass=class com.jerser.service.UploadFileService, handlerConstructors=[org.glassfish.jersey.server.model.HandlerConstructor@d3e2d4]}, definitionMethod=public javax.ws.rs.core.Response com.jerser.service.UploadFileService.uploadFile(java.io.InputStream,com.sun.jersey.core.header.FormDataContentDisposition), parameters=[Parameter [type=class java.io.InputStream, source=file, defaultValue=null], Parameter [type=class com.sun.jersey.core.header.FormDataContentDisposition, source=file, defaultValue=null]], responseType=class javax.ws.rs.core.Response}, nameBindings=[]}']
    at org.glassfish.jersey.server.ApplicationHandler.initialize(ApplicationHandler.java:528)
    at org.glassfish.jersey.server.ApplicationHandler.access$500(ApplicationHandler.java:166)
    at org.glassfish.jersey.server.ApplicationHandler$3.run(ApplicationHandler.java:327)
    at org.glassfish.jersey.internal.Errors$2.call(Errors.java:289)
    at org.glassfish.jersey.internal.Errors$2.call(Errors.java:286)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    at org.glassfish.jersey.internal.Errors.processWithException(Errors.java:286)
    at org.glassfish.jersey.server.ApplicationHandler.<init>(ApplicationHandler.java:324)
    at org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:338)
    at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:171)
    at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:363)
    at javax.servlet.GenericServlet.init(GenericServlet.java:160)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1176)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1102)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1009)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4885)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5212)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5207)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

在互联网上，我发现有很多示例展示了如何使用 RESTFul API 上传 MULTIPART 文件。但使用相同的解决方案。我也无法运行这些代码。 我认为我对 JAR 文件做错了什么。谁能帮我解决这个问题？

最佳答案

摆脱jersey-multipart-1.18.jar .那是针对 Jersey 1.x 的。添加这两个

• jersey-media-multipart-2.17
• mimepull-1.9.3

对于 Maven，您将使用以下依赖项(您无需显式添加 mimepull 依赖项，因为这会将其拉入)。

<dependency>
    <groupId>org.glassfish.jersey.media</groupId>
    <artifactId>jersey-media-multipart</artifactId>
    <version>2.17</version> <!-- Make sure the Jersey version matches
                                 the one you are currently using -->
</dependency>

然后你需要注册MultiPartFeature .如果您使用的是 ResourceConfig对于配置，你可以简单地做

register(MultiPartFeature.class);

如果您使用的是 web.xml，那么您可以将类添加为 <init-param>到 Jersey servlet

<init-param>
    <param-name>jersey.config.server.provider.classnames</param-name>
    <param-value>org.glassfish.jersey.media.multipart.MultiPartFeature</param-value>
</init-param>

请注意，如果您要注册多个提供程序，则可以使用逗号、分号或空格/换行符分隔每个提供程序类。您不能使用相同的 param-name两次。见 Suarabh's answer

更新

此外，一旦你摆脱了jersey-multipart-1.18.jar对于缺少的导入类，您将遇到编译错误。在大多数情况下，类名仍然相同，只是包发生了变化，即

• org.glassfish.jersey.media.multipart.FormDataParam
• org.glassfish.jersey.media.multipart.FormDataContentDisposition

对于 Dropwizard

如果您使用的是 Dropwizard，而不是添加 jersey-media-multipart ，他们记录供您添加dropwizard-forms反而。而不是注册 MultiPartFeature ，您应该注册 MultiPartBundle

@Override
public void initialize(Bootstrap<ExampleConfiguration> bootstrap) {
    bootstrap.addBundle(new MultiPartBundle());
}

虽然 Dropwizard bundle 所做的只是注册 MultiPartFeature，但实际上并没有太大区别。与 ResourceConfig .

一边

如果您来这里是为了另一个 ModelValidationException ，这里有一些链接可获取有关异常的其他原因的信息。

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关于java - MULTIPART_FORM_DATA : No injection source found for a parameter of type public javax. ws.rs.core.Response，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30653012/