Question

我是否需要休息来回答文件并使用方法get或其他一些http方法下载它们，但我有这个错误，我将在下面介绍：

GRAVE: MessageBodyWriter not found for media type=application/octet-stream, type=class java.util.HashMap, genericType=class java.util.HashMap.

这是一个类示例，它给我同样的错误，下载任何pdf文件，但我有同样的错误。

@GET
@Path("/pdf")
public Response downloadPdfFile() {
    StreamingOutput fileStream = new StreamingOutput() {
        @Override
        public void write(java.io.OutputStream output) throws IOException, WebApplicationException {
            System.out.println("ENTRANDO!!!!");
            FileInputStream fileInputStream = new FileInputStream(new File(FILE_PATH));
            byte[] buffer = new byte[1024];
            int count = 0;
            while ((count = fileInputStream.read(buffer)) >= 0) {
                output.write(buffer, 0, count);
            }
            output.flush();
        }
    };
    return Response
            .ok(fileStream, MediaType.APPLICATION_OCTET_STREAM)
            .header("content-disposition", "attachment; filename = myfile.pdf")
            .build();
}

使用这些单位：

<dependency>
    <groupId>org.glassfish.jersey.media</groupId>
    <artifactId>jersey-media-json-jackson</artifactId>
    <version>2.6</version>
</dependency>
<dependency>
    <groupId>javax</groupId>
    <artifactId>javaee-api</artifactId>
    <version>7.0</version>
    <type>jar</type>
</dependency>
<dependency>
    <groupId>javax</groupId>
    <artifactId>javaee-web-api</artifactId>
    <version>6.0</version>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>org.glassfish.jersey</groupId>
    <artifactId>jersey-bom</artifactId>
    <version>2.22.1</version>
    <type>pom</type>
    <scope>compile</scope>
</dependency>    
<dependency>
    <groupId>org.glassfish.jersey.containers</groupId>
    <artifactId>jersey-container-servlet-core</artifactId>
    <version>2.22.1</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>     
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-api</artifactId>
    <version>2.1</version>
</dependency>
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.1</version>
</dependency>

更新我发现泽西配置中的org.glassfish.jersey.media.multipart.MultiPartFeature导致错误，但我无法删除此功能，但我上传了多部分文件请帮忙

找不到媒体类型= application / octet-stream的MessageBodyWriter，type = class java.util.HashMap，genericType = class java.util.HashMap

0 个答案: