Http客户端POST上传文件-MultipartException:当前请求不是多部分请求

时间:2018-08-28 09:40:22

标签: java rest api http-post apache-httpclient-4.x

我需要使用httpclient 4.5测试文件上传

以下方法用于上传文件:

public Response postwithFile(String url, File file) {
        HttpPost postMethod = new HttpPost(PropertyUtil.loadEnvironment().getBaseUrl() + url);
        postMethod.setHeader("Content-Type","multipart/form-data");
        FileBody fileBody = new FileBody(file, ContentType.MULTIPART_FORM_DATA);
        //_addAuthHeader(postMethod);
        MultipartEntityBuilder builder = MultipartEntityBuilder.create();
        // fileParamName should be replaced with parameter name your REST API expect.
        builder.addPart("upfile", fileBody);
        HttpEntity entity = builder.build();
        postMethod.setEntity(entity) ;
        return execute(postMethod);
    }

文件没有任何扩展名,但文件的内容为JSON。

在调用上述方法时,我在服务器日志中收到500错误和以下异常:

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Curren
t request is not a multipart request                                                                                                                            
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)  

有人可以帮我做错什么吗?

1 个答案:

答案 0 :(得分:1)

使用以下内容

 builder.addBinaryBody(
        "upfile",
        new FileInputStream(file),
        ContentType.APPLICATION_OCTET_STREAM,
        file.getName()
    );

代替

 builder.addPart("upfile", fileBody);

由于已弃用以下内容,因此不再需要以下内容:-

FileBody fileBody = new FileBody(file, ContentType.MULTIPART_FORM_DATA);