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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 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。有人可以帮我解决这个问题吗?
最佳答案
摆脱jersey-multipart-1.18.jar
。这是针对 Jersey 1.x 的。添加这两个
对于 Maven,您将使用以下依赖项(您不需要显式添加 mimepull
依赖项,因为这个依赖项会将其引入)。
<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,您可以简单地执行
register(MultiPartFeature.class);
如果您使用 web.xml,则可以将该类添加为 <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,如果您想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。请参阅Suarabh's answer
更新
此外,一旦你摆脱 jersey-multipart-1.18.jar
对于缺少的导入类,您将出现编译错误。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
如果您使用 Dropwizard,则不要添加 jersey-media-multipart
,他们为您添加文档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());
}
实际上并没有多大区别,因为 Dropwizard bundle 所做的只是注册 MultiPartFeature
与 ResourceConfig
.
如果您来这里是为了不同的ModelValidationException
,这里有一些有关异常其他原因的信息的链接。
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/59576186/
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