EncryptMessageHandler.java
package com.foxinmy.weixin4j.xml;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;
import com.foxinmy.weixin4j.util.ServerToolkits;
/**
* 获取加密的密文内容
*
* @className EncryptMessageHandler
* @author jinyu(foxinmy@gmail.com)
* @date 2015年5月17日
* @since JDK 1.6
* @see
*/
public class EncryptMessageHandler extends DefaultHandler {
private String toUserName;
private String encryptContent;
private String content;
@Override
public void startDocument() throws SAXException {
toUserName = null;
encryptContent = null;
}
@Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
}
@Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
if (localName.equalsIgnoreCase("encrypt")) {
encryptContent = content;
} else if (localName.equalsIgnoreCase("tousername")) {
toUserName = content;
}
}
@Override
public void characters(char[] ch, int start, int length)
throws SAXException {
this.content = new String(ch, start, length);
}
public String getToUserName() {
return toUserName;
}
public String getEncryptContent() {
return encryptContent;
}
private final static EncryptMessageHandler global = new EncryptMessageHandler();
public static EncryptMessageHandler parser(String xmlContent)
throws RuntimeException {
try {
XMLReader xmlReader = XMLReaderFactory.createXMLReader();
xmlReader.setContentHandler(global);
xmlReader.parse(new InputSource(new ByteArrayInputStream(xmlContent
.getBytes(ServerToolkits.UTF_8))));
} catch (IOException e) {
throw new RuntimeException(e);
} catch (SAXException e) {
throw new RuntimeException(e);
}
return global;
}
}