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Token verification and message processing methods for WeChat public platform development
Token verification and message processing methods for WeChat public platform development
This article introduces the token verification and message processing methods of WeChat public platform development
/**
*
* @Description: 微信消息处理以及用户分组
* @author zhangjun
* @date 2014-1-7 上午10:51:51
*/
public class WeiXinMessageAction extends BaseAction{
/**
*
*/
private static final long serialVersionUID = 1L;
private IFeWeiXinMessageService weiXinExternalService;
private String wxNo;
public String responseMessgaeInfo(){
Boolean isGet = request.getMethod().equalsIgnoreCase("GET");
if(isGet){
validateSignature();
}else{
saveWxMessage();
}
return null;
}
/**
*
* @Description: 接收post保存接受的消息 只保存MsgType类型为text信息
* @param
* @return void
* @throws
*/
private void saveWxMessage(){
InputStream inputStream;
try {
request.setCharacterEncoding("UTF-8");
Document doc = null;
SAXReader reader = new SAXReader();
inputStream = request.getInputStream();
doc = reader.read(inputStream);
Element root = doc.getRootElement();
String toUserName = root.element("ToUserName").getTextTrim();
String fromUserName = root.element("FromUserName").getTextTrim();
String content = root.element("Content").getTextTrim();
String msgType=root.element("MsgType").getTextTrim();
String msgId=root.element("MsgId").getTextTrim();
String createTime=root.element("CreateTime").getTextTrim();
//只保存文本消息
//时间
System.out.println("接收消息内容:"+content+"-----------------msgType:"+msgType);
if(WeiXinMsgType.TEXT.type.equals(msgType)){
weiXinExternalService.addWxMessage(toUserName, fromUserName, content, msgType, msgId, formatTime(createTime));
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
*
* @Description: 传入的CreateTime转换成long类型
* @param @param createTime
* @param @return
* @return Date
* @throws
*/
private Date formatTime(String createTime) {
long msgCreateTime = Long.parseLong(createTime) * 1000L;
return new Date(msgCreateTime);
}
/**
*
* @Description: 校验微信签名
* @param
* @return void
* @throws
*/
private void validateSignature(){
PrintWriter out = null;
try {
String signature = request.getParameter("signature");
String timestamp = request.getParameter("timestamp");
String nonce = request.getParameter("nonce");
out = response.getWriter();
if (checkSignature(signature, timestamp, nonce)) {
out.print(request.getParameter("echostr"));
}
} catch (Exception e) {
e.printStackTrace();
} finally {
out.close();
out = null;
}
}
/**
*
* @Description: 判断token是否合法
* @param @param signature
* @param @param timestamp
* @param @param nonce
* @param @return
* @return boolean
* @throws
*/
private boolean checkSignature(String signature, String timestamp, String nonce) {
//根据微信账号获取token并校验
Map<String,Object> map=new HashMap<String,Object>();
map.put("wxNo", wxNo);
WeiXinMasterConfig masterConfig= weiXinExternalService.selectWeiXinMasterConfig(map);
if(masterConfig==null){
return false;
}
String[] arr = new String[] {masterConfig.getWxToken(), timestamp, nonce };
Arrays.sort(arr);
StringBuilder content = new StringBuilder();
for (int i = 0; i < arr.length; i++) {
content.append(arr[i]);
}
MessageDigest md = null;
String tmpStr = null;
try {
md = MessageDigest.getInstance("SHA-1");
byte[] digest = md.digest(content.toString().getBytes());
tmpStr = byteToStr(digest);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
content = null;
return tmpStr != null ? tmpStr.equals(signature.toUpperCase()) : false;
}
// 将字节转换为十六进制字符串
private static String byteToHexStr(byte ib) {
char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A',
'B', 'C', 'D', 'E', 'F' };
char[] ob = new char[2];
ob[0] = Digit[(ib >>> 4) & 0X0F];
ob[1] = Digit[ib & 0X0F];
String s = new String(ob);
return s;
}
// 将字节数组转换为十六进制字符串
private static String byteToStr(byte[] bytearray) {
String strDigest = "";
for (int i = 0; i < bytearray.length; i++) {
strDigest += byteToHexStr(bytearray[i]);
}
return strDigest;
}The above is the detailed content of Token verification and message processing methods for WeChat public platform development. For more information, please follow other related articles on the PHP Chinese website!
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