Question

我正在使用jersey 2.22.1在java中构建RESTful API。我有一个资源类，我打算接收一个客户端将通过表单上传的文件。我的问题是我不断从服务器获得415不支持的媒体类型响应。有趣的是，客户端（Postman chrome扩展）收到状态0，当文件是jpg图像时连接到服务器的错误

资源类中还有另一种用于测试目的的方法，它可以正常工作。我用google搜索了stackoverflow网站，可以找到类似的情况，但没有帮助我的情况。感谢所有的帮助，提前谢谢。

资源类

package org.sime.seven.managefiles.resource;

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;

import org.glassfish.jersey.media.multipart.ContentDisposition;
import org.glassfish.jersey.media.multipart.FormDataBodyPart;
import org.glassfish.jersey.media.multipart.FormDataMultiPart;

@Path("files")
public class UploadResource {

    @GET
    @Path("test")
    @Produces(MediaType.APPLICATION_JSON)
    public String test(){
        return "testing 1,2,3";
    }

    @POST
    @Path("upload")
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    @Produces(MediaType.APPLICATION_JSON)
    public Response uploadFile(FormDataMultiPart formData){
        FormDataBodyPart filePart = formData.getField("file");
        ContentDisposition fileHeader = filePart.getContentDisposition();
        String fileName = fileHeader.getFileName();
        String reply = "File confirmed" + fileName;
        return Response.status(Status.OK).entity(reply).build();
    }



}

的pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

            <modelVersion>4.0.0</modelVersion>

            <groupId>org.sime.seven</groupId>
            <artifactId>managefiles</artifactId>
            <packaging>war</packaging>
            <version>0.0.1-SNAPSHOT</version>
            <name>managefiles</name>

            <build>
                <finalName>managefiles</finalName>
                <plugins>
                    <plugin>
                        <groupId>org.apache.maven.plugins</groupId>
                        <artifactId>maven-compiler-plugin</artifactId>
                        <version>2.5.1</version>
                        <inherited>true</inherited>
                        <configuration>
                            <source>1.7</source>
                            <target>1.7</target>
                        </configuration>
                    </plugin>
                </plugins>
            </build>

            <dependencyManagement>
                <dependencies>
                    <dependency>
                        <groupId>org.glassfish.jersey</groupId>
                        <artifactId>jersey-bom</artifactId>
                        <version>${jersey.version}</version>
                        <type>pom</type>
                        <scope>import</scope>
                    </dependency>
                </dependencies>
            </dependencyManagement>

            <dependencies>
                <dependency>
                    <groupId>org.glassfish.jersey.containers</groupId>
                    <artifactId>jersey-container-servlet-core</artifactId>
                    <!-- use the following artifactId if you don't need servlet 2.x compatibility -->
                    <!-- artifactId>jersey-container-servlet</artifactId -->
                </dependency>
                <!-- uncomment this to get JSON support -->
                <dependency>
                    <groupId>org.glassfish.jersey.media</groupId>
                    <artifactId>jersey-media-moxy</artifactId>
                </dependency>

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

            </dependencies>
            <properties>
                <jersey.version>2.22.1</jersey.version>
                <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            </properties>
        </project>

resulting jars

Answer 1

我发现，正如评论中所提到的，要使用泽西岛的FormDataMultipart类，需要注册MultipartFeature

所以我将init param添加到web.xml中，如下所示

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

它运作得很好。

使用FormDataMultipart时，RESTful api回复415不支持的媒体类型

1 个答案: