UrlEscapersExample.java

Escaper pathEscapers = UrlEscapers.urlPathSegmentEscaper();
Escaper queryEscapers = UrlEscapers.urlFormParameterEscaper();
Escaper fragmentEscaper= UrlEscapers.urlFragmentEscaper();

String path1 = "somePathWithSpace ";
String path2 = "somePathWith中文AndPlus+";
String someKeyword = "someKeywordWith中文AndPlus+AndSpace ";
String someFragment = "someFragmentWithSpace ";

String url = String.format(
        "http://example.com/%s/%s?keyword=%s#%s",
        pathEscapers.escape(path1),
        pathEscapers.escape(path2),
        queryEscapers.escape(someKeyword),
        fragmentEscaper.escape(someFragment));