如何将XML字符串发布到Web服务而不是XML文件

Question

I have sucessfully posted an http request to a web service running on one of our servers.

Please note I did not write the web service and have no access to the source code.

Working code:

resp, err := http.Post("http://xxx.xxx.xx.xxx:8080/webservice/", "c:\\xml\\test.xml", nil)

I now instead of using an xml file need to build up the xml from a list of values.

I have written a function that does this, it basically pieces together the xml in a string builder. and my output string looks correct.

What I am not sure of is how do I post the xml as the post function seems to take the path to a file rather than a string?

Also is building it together as a string the correct method or should I approach it differently?

Answer 1

I'm not sure where you took

resp, err := http.Post("http://xxx.xxx.xx.xxx:8080/webservice/", "c:\\xml\\test.xml", nil)

from. The docs say the signature of net/http.Post is

func Post(url, contentType string, body io.Reader) (resp *Response, err error)

That is, the second parameter is the content type of the payload to be sent, and the third is the source from which to read the data to be sent.

Hence, if you have a string containing the XML data (building an XML document using string operations is almost always a wrong thing to do but let's not digress for now), you can have an io.Reader to read data from it by calling strings.NewReader() on your string.

So the call would become

resp, err := http.Post("http://xxx.xxx.xx.xxx:8080/webservice/", "application/xml", strings.NewReader(yourStringWithXML))