How to convert the below curl command in Java using HttpURLConnection?

Question

如何使用HttpURLConnection将以下curl命令转换为Java？

curl -D- -X GET -H "Authorization: Basic ZnJlZDpmcmVk" -H "Content-Type: application/json" "https://example.com:8081/rest/api/2/issue/QA-31"

Answer 1

1. How to set headers:

     HttpURLConnection myCon = (HttpURLConnection) new URL("https://example.com:8081/rest/api/2/issue/QA-31").openConnection(); myCon.setRequestMethod("GET"); myCon.setRequestProperty("Content-Type","application/json"); myCon.setRequestProperty("Authorization", "Basic ZnJlZDpmcmVk"); 

2. After that you can read URL content in two ways

   a. you can get InputStream from Connection as

    InputStream inStream = myCon.getInputStream(); 

and read it as you want directly or with some reader etc.

b. by getting Content as

Object content = myCon.getContent();

For details read Java Docs for those methods it is very well documented.

BTW: keep in mind you have an SSL connection then you have to have remote server certificate in your java Key Store.