无法计算 MD5:AWS S3 存储桶 [英] Unable to calculate MD5 : AWS S3 bucket

问题描述

我的应用程序托管在 AWS Elastic Beanstalk - Tomcat 6 上.我的数据文件存储在 S3 存储桶中.当我在我的机器上的本地服务器上托管我的应用程序时，我能够读取和写入数据到我的 S3 存储桶(通过 SDK 使用)，但是从托管在 Elastic Beanstalk 上的应用程序写入操作显示错误，即在 Elastic Beanstalk 上雄猫.我收到以下错误:

I have my application hosted on AWS, Elastic Beanstalk - Tomcat 6. My data files are stored in an S3 bucket. When I am hosting my application on local server on my machine , I am able to read and write data to my S3 bucket (using via SDK), but from the application hosted on Elastic Beanstalk the writing operation is showing an error i.e on Elastic Beanstalk Tomcat. I am getting below error:

com.amazonaws.AmazonClientException:无法计算 MD5 哈希:visitorsinfo.json(没有那个文件或目录)

com.amazonaws.AmazonClientExceptio­n: Unable to calculate MD5 hash: visitorsinfo.json (No such file or directory)

我的 S3 存储桶中确实有访问者信息.json，它可以从我机器上的本地服务器成功访问，但无法从 Elastic Beanstalk 访问..

I do have visitorsinfo.json in my S3 bucket which is successfully accessible from my local server in my machine, but not accessible from Elastic Beanstalk..

推荐答案

将 Input Stream 传递给 put 对象，而不是传递文件对象，如下所示

Instead of passing file object pass the Input Stream to the put object as shown below

InputStream is=file.getInputStream();                                                                           
s3client.putObject(new PutObjectRequest(bucketName, keyName,is,new ObjectMetadata())); 

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