java 检测表情符号_带有表情符号字符的java xml解析器

以下代码用于解析xml文件.我注意到没有正确解析表情符号字符.在该示例中,输入在结尾处具有一个表情符号(

/view/emoji/693/people/revolving-hearts),该字符在输出中加倍.这是一个已知的错误？

import java.io.File;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.w3c.dom.NamedNodeMap;

import org.w3c.dom.Node;

import org.w3c.dom.NodeList;

public class XmlTest {

public static void main(String[] args) {

DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();

domFactory.setValidating(false);

File file = new File("c:\\temp\\emoji.xml");

try {

DocumentBuilder builder = domFactory.newDocumentBuilder();

Document doc = builder.parse(file);

NodeList nodes = doc.getElementsByTagName("entry");

Node node = nodes.item(0);

NamedNodeMap map = ((Element)node).getAttributes();

for (int i=0; i

Node n = map.item(i);

System.out.println();

System.out.println(n.getNodeValue());

char[] chars = n.getNodeValue().toCharArray();

for (int j=0; j

System.out.print(chars[j] + ", " + (int)chars[j] + " ");

}

}

} catch (Exception e) {e.printStackTrace(); }

}

}

这是输入emoji.xml：

并输出：

name

n, 110 a, 97 m, 109 e, 101

💞test💞💞

?, 55357 ?, 56478 t, 116 e, 101 s, 115 t, 116 ?, 55357 ?, 56478 ?, 55357 ?, 56478