小编Wil*_*ini的帖子

我用来处理XSLT和XML文件的一般java代码是：

public static final String transformXmlDocument(String inputXmlString,
            File xsltFile) {

        TransformerFactory factory = TransformerFactory.newInstance();
        StreamSource xslt = new StreamSource(xsltFile);

        StreamSource text = new StreamSource(new StringReader(inputXmlString));
        StringWriter writer = new StringWriter();
        StreamResult textOP = new StreamResult(writer);

        try {
            Transformer transformer = factory.newTransformer(xslt);
            transformer.transform(text, textOP);
        } catch (TransformerConfigurationException e) {
            e.printStackTrace();
        } catch (TransformerException e2) {
            e2.printStackTrace();
        }
        String results = writer.toString();

        return results;
}

我必须处理XSLT3.0 版本才能使用以下功能：

解析 xml-fragment()

对于这个版本的XSLT说法，它会抛出错误：

找不到 parse-xml-fragment() 作为函数

我的输入 …

我正在尝试使用 Rails 创建一个以 mysql 作为数据库的项目

我使用以下命令：

 gem install mysql2

我在命令行中得到以下结果：

Building native extensions.  This could take a while...
ERROR:  Error installing mysql2:
    ERROR: Failed to build gem native extension.

    /home/sample/.rbenv/versions/2.2.3/bin/ruby -r ./siteconf20170316-5426-f6rn3k.rb extconf.rb
checking for rb_absint_size()... yes
checking for rb_absint_singlebit_p()... yes
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... no
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
checking for rb_big_cmp()... yes
checking for mysql_query() in -lmysqlclient... no
-----
mysql client …