{"id":97,"date":"2018-11-09T07:50:56","date_gmt":"2018-11-09T07:50:56","guid":{"rendered":"https:\/\/jan.schnasse.org\/blog\/?p=97"},"modified":"2018-11-09T07:50:56","modified_gmt":"2018-11-09T07:50:56","slug":"url-encoding-in-java","status":"publish","type":"post","link":"https:\/\/jan.schnasse.org\/blog\/2018\/11\/09\/url-encoding-in-java\/","title":{"rendered":"URL encoding in Java."},"content":{"rendered":"

Here is<\/a>, how I encode URLs in Java.<\/p>\n

    \n
  1. Split URL into structural parts. Use java.net.URL for it.<\/li>\n
  2. Encode each part properly<\/li>\n
  3. Use IDN.toASCII(putDomainNameHere)<\/code> to Punycode<\/a> encode the host name!<\/li>\n
  4. Use java.net.URI.toASCIIString()<\/code> to percent-encode, NFC encoded unicode – (better would be NFKC!). For more info see: How to encode properly this URL<\/a>\n
    URL url<\/span>=<\/span> new<\/span> URL<\/span>(<\/span>\"<\/span>http<\/span>:<\/span>\/\/search.barnesandnoble.com\/booksearch\/first book.pdf);<\/span>\nURI uri <\/span>=<\/span> new<\/span> URI<\/span>(<\/span>url<\/span>.<\/span>getProtocol<\/span>(),<\/span> url<\/span>.<\/span>getUserInfo<\/span>(),<\/span> IDN<\/span>.<\/span>toASCII<\/span>(<\/span>url<\/span>.<\/span>getHost<\/span>()),<\/span> url<\/span>.<\/span>getPort<\/span>(),<\/span> url<\/span>.<\/span>getPath<\/span>(),<\/span> url<\/span>.<\/span>getQuery<\/span>(),<\/span> url<\/span>.<\/span>getRef<\/span>());<\/span>\nString<\/span> correctEncodedURL<\/span>=<\/span>uri<\/span>.<\/span>toASCIIString<\/span>();<\/span> \nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>correctEncodedURL<\/span>);<\/span><\/code><\/pre>\n
    Prints<\/p>\n
    http<\/span>:<\/span>\/\/search.barnesandnoble.com\/booksearch\/first%20book.pdf<\/span><\/code><\/pre>\n<\/li>\n<\/ol>\n
     <\/p>\n","protected":false},"excerpt":{"rendered":"
    Here is, how I encode URLs in Java. Split URL into structural parts. Use java.net.URL for it. Encode each part properly Use IDN.toASCII(putDomainNameHere) to Punycode encode the host name! Use java.net.URI.toASCIIString() to percent-encode, NFC encoded unicode – (better would be NFKC!). For more info see: How to encode properly this URL URL url= new URL(„http:\/\/search.barnesandnoble.com\/booksearch\/first […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,9,15],"tags":[],"class_list":["post-97","post","type-post","status-publish","format-standard","hentry","category-development","category-java","category-software"],"_links":{"self":[{"href":"https:\/\/jan.schnasse.org\/blog\/wp-json\/wp\/v2\/posts\/97","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jan.schnasse.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jan.schnasse.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jan.schnasse.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jan.schnasse.org\/blog\/wp-json\/wp\/v2\/comments?post=97"}],"version-history":[{"count":0,"href":"https:\/\/jan.schnasse.org\/blog\/wp-json\/wp\/v2\/posts\/97\/revisions"}],"wp:attachment":[{"href":"https:\/\/jan.schnasse.org\/blog\/wp-json\/wp\/v2\/media?parent=97"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jan.schnasse.org\/blog\/wp-json\/wp\/v2\/categories?post=97"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jan.schnasse.org\/blog\/wp-json\/wp\/v2\/tags?post=97"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}