aws s3 put request

, other places with ordinary upload no difference. After the server gets the request header, the signature value is computed according to the valid signature algorithm, then the signature of the client's request is verified, and the server is allowed to upload after the success. First we need to solve two problems: 1. What are the specified request headers? First

= new Amazons3config () { serviceurl = "http://s3.amazonaws.com" };4. Normal Upload method (based on MVC framework): where Cannedacl = S3cannedacl.publicread Set the upload file permissions, you can read the key is the file name after the upload or a unique indicator, here file. FileName is a path, and you can modify it yourself to the name you want to save.The other two don't have to explain. Haha, after testing, smooth through, good

not the case. Imagine a business scenario: to determine whether a resource exists, we usually use get, but the head here is more explicit.2,put: This method is relatively rare. This is not supported by HTML forms. In essence, put and post are very similar, are sending data to the server, but there is an important difference between them, put usually specifies th

server, but there is an important difference between them, put usually specifies the location of the resources, and post is not, post data storage location by the server itself. For example, a url,/addblog for submitting a blog post. If put, the submitted URL will be "/addblog/abc123" like this, where abc123 is the address of the blog post. If you use post, the address will be communicated to the client by

address will be communicated to the client by the server after submission. Most blogs are like this at the moment. Obviously, the put and post uses are not the same. The specific use depends on the current business scenario.3,delete: Deletes a resource. This is mostly rare, but there are some places like Amazon's S3 cloud service that use this method to delete resources.4,post: Submits data to the server.

. Most blogs are like this at the moment. Obviously, the put and post uses are not the same. The specific use depends on the current business scenario.3,delete: Deletes a resource. This is mostly rare, but there are some places like Amazon's S3 cloud service that use this method to delete resources.4,post: Submits data to the server. This method is widely used, and almost all of the current submissions are

Because the image is uploaded using binary mode, the method of using hidden fields is invalid, and the method of conversion is as follows:Https://www.cnblogs.com/morethink/p/6378015.htmlBut then I had another requirement. That is, when the changes need to transfer files to the Put method, so this method is not OK, but I see in the HiddenHttpMethodFilter source code this sentence1 Case of a multipart 2 for checking a POST body parameter.3 * so typ